打造自己的 C# WinForm 应用程序的 SQL Server 连接配置界面

在C# WinForm 应用程序非常需要一个 SQL Server 连接配置界面，许多时候，因 SQL Server 服务器地址变更或 数据库登录账户 变更引起的连接失败等情况，客户就可能打电话“找麻烦”。既然这样，还不如提供一个可视化的配置界面，并在用户手册中说明使用方法，尽可能避免这种小问题带来的烦恼。为此，我将自己无聊时写的连接配置源码贴出来给初学者参考，以备不时之需！

想必大家都很熟悉VS服务器资源管理器中的【添加连接】对话框吧！下面是它的截图：

再看看我模仿这个对话框打造的WinForm程序SQL Server 连接配置界面：

呵呵！有几分相似吧！需要的朋友可以参考下面的源码。这份源码是完整的，粘贴到VS中即可使用。

窗体源码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.IO;
using System.Windows.Forms;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Configuration;
namespace CodingMouse.CMCSharpSDK.UI.Forms
{
    /// <summary>
    /// 数据库连接配置界面
    /// </summary>
    public partial class frmConnectionConfig : Form
    {
        #region Private Members
        /// <summary>
        /// SQL Server 连接字符串创建者对象
        /// </summary>
        SqlConnectionStringBuilder _connectionStringBuilder = null;
        /// <summary>
        /// 当前应用程序名称
        /// </summary>
        string _applicationName;
        #endregion
        #region Private Methods
        /// <summary>
        /// 获取 本地网络所有 SQL Server 实例(数据源)
        /// </summary>
        private void GetSqlDataSource()
        {
            // 显示提示信息
            string msg = "正在获取本地网络所有 SQL Server 服务器信息 ...";
            this.toolTip.ToolTipIcon = ToolTipIcon.Info;
            this.toolTip.ToolTipTitle = "请稍候...";
            Point showLocation = new Point(
                this.lblServer.Left + 2,
                this.lblServer.Top + this.lblServer.Height);
            this.toolTip.Show(msg, this, showLocation, 1000);
            // 创建 提供了一种枚举本地网络内的所有可用 SQL Server 实例的机制 的实例
            SqlDataSourceEnumerator sdsEnum = SqlDataSourceEnumerator.Instance;
            // 调用 检索包含有关所有可见 SQL Server 2000 或 SQL Server 2005 实例的信息的 DataTable 的方法
            DataTable serverDt = sdsEnum.GetDataSources();
            // 创建新列以拼接 ServerName 以及 InstanceName 列的内容(以此构建连接字符串的 Server / Data Source 项)
            DataColumn dcDataSource = new DataColumn("SqlDataSourceName", typeof(string));
            // 将新列添加到 DataTable
            serverDt.Columns.Add(dcDataSource);
            // 创建新列以用中文方式显示 IsClustered 列内容
            DataColumn dcIsClustered = new DataColumn("IsClusteredCHS", typeof(string));
            // 将新列添加到 DataTable
            serverDt.Columns.Add(dcIsClustered);
            // 遍历 DataTable 并给新列赋予拼接后的值
            foreach (DataRow dataRow in serverDt.Rows)
            {
                if (!string.IsNullOrEmpty(Convert.ToString(dataRow["InstanceName"])))
                    dataRow["SqlDataSourceName"] = string.Format(@"{0}/{1}",
                        Convert.ToString(dataRow["ServerName"]),
                        Convert.ToString(dataRow["InstanceName"]));
                else
                    dataRow["SqlDataSourceName"] = string.Format(@"{0}",
                        Convert.ToString(dataRow["ServerName"]));
                dataRow["IsClusteredCHS"] = 
                    (Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "NO")
                    ? "否" : ((Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "YES") 
                    ? "是" : dataRow["IsClustered"]);
            }
            // 如果包含数据行
            if (serverDt.Rows.Count > 0)
            {
                // 创建窗体数据源封装类实例并封装 DataTable
                BindingSource source = new BindingSource();
                source.DataSource = serverDt;
                // 设置 ComboBox 数据源
                this.cboSqlDataSource.DataSource = source;
                this.cboSqlDataSource.DisplayMember = "SqlDataSourceName";
                this.cboSqlDataSource.ValueMember = "SqlDataSourceName";
                // 设置 DataGridView 数据源
                this.dgvServerInfo.DataSource = source;
                // 设置中文列名
                this.dgvServerInfo.Columns["SqlDataSourceName"].HeaderText = "服务器名";
                this.dgvServerInfo.Columns["SqlDataSourceName"].DisplayIndex = 0;
                this.dgvServerInfo.Columns["ServerName"].HeaderText = "服务器物理名称";
                this.dgvServerInfo.Columns["ServerName"].DisplayIndex = 1;
                this.dgvServerInfo.Columns["ServerName"].Visible = false;
                this.dgvServerInfo.Columns["InstanceName"].HeaderText = "实例名";
                this.dgvServerInfo.Columns["InstanceName"].DisplayIndex = 2;
                this.dgvServerInfo.Columns["InstanceName"].Visible = false;
                this.dgvServerInfo.Columns["IsClustered"].HeaderText = "群集信息";
                this.dgvServerInfo.Columns["IsClustered"].DisplayIndex = 3;
                this.dgvServerInfo.Columns["IsClustered"].Visible = false;
                this.dgvServerInfo.Columns["IsClusteredCHS"].HeaderText = "属于群集";
                this.dgvServerInfo.Columns["IsClusteredCHS"].DisplayIndex = 4;
                this.dgvServerInfo.Columns["Version"].HeaderText = "版本";
                this.dgvServerInfo.Columns["Version"].DisplayIndex = 5;
            }
        }
        /// <summary>
        /// 获取当前服务器上所有数据库名称
        /// </summary>
        private void GetDataBaseName()
        {
            // 显示提示信息
            string msg = string.Format("正在获取服务器 [{0}] 上的数据库信息 ...", cboSqlDataSource.Text.Trim());
            this.toolTip.ToolTipIcon = ToolTipIcon.Info;
            this.toolTip.ToolTipTitle = "请稍候...";
            Point showLocation = new Point(
                this.lblServer.Left + 2,
                this.lblServer.Top + this.lblServer.Height);
            this.toolTip.Show(msg, this, showLocation, 1000);
            // 查询服务器上所有数据库的 SQL 查询命令
            string sqlTxt = "Select [Name] From [SysDatabases] Order By [Name]";
            // 保存结果的 DataTable
            DataTable dataBaseDt = new DataTable();
            // 创建连接对象
            using (SqlConnection con = new SqlConnection(GetConnectionString()))
            {
                // 执行查询
                try
                {
                    // 创建适配器对象
                    using (SqlDataAdapter adp = new SqlDataAdapter(sqlTxt, con))
                    {
                        // 将查询结果填充到 DataTable
                        adp.Fill(dataBaseDt);
                    }
                }
                catch { }  // 不弹出异常消息
            }
            // 如果 DataTable 包含数据行
            if (dataBaseDt.Rows.Count > 0)
            {
                // 创建窗体数据绑定对象
                BindingSource source = new BindingSource();
                source.DataSource = dataBaseDt;
                // 将结果绑定到数据库列表
                cboDataBaseName.DataSource = source;
                cboDataBaseName.DisplayMember = "Name";
                cboDataBaseName.ValueMember = "Name";
            }
            else
            {
                // 移除数据库列表
                cboDataBaseName.DataSource = null;
            }
        }
        /// <summary>
        /// 获取连接字符串
        /// </summary>
        private string GetConnectionString()
        {
            // 重新创建连接字符串创建者
            _connectionStringBuilder = new SqlConnectionStringBuilder();
            // 获取服务器名称
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
                _connectionStringBuilder.DataSource = cboSqlDataSource.Text.Trim();
            // 获取登录类型
            if (rdoValidateBySQLServer.Checked)
            {
                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                    _connectionStringBuilder.UserID = txtUserName.Text.Trim();
                if (!string.IsNullOrEmpty(txtPassword.Text.Trim()))
                    _connectionStringBuilder.Password = txtPassword.Text.Trim();
            }
            // 获取默认数据库
            if (!string.IsNullOrEmpty(cboDataBaseName.Text.Trim())
                || !string.IsNullOrEmpty(txtDataBaseFilePath.Text.Trim())
                || !string.IsNullOrEmpty(txtLogicalName.Text.Trim()))
            {
                // 如果是附加一个数据库文件
                if (rdoAttachADataBaseFile.Checked)
                {
                    _connectionStringBuilder.AttachDBFilename = txtDataBaseFilePath.Text.Trim();
                    _connectionStringBuilder.InitialCatalog = txtLogicalName.Text.Trim();
                }
                else
                    _connectionStringBuilder.InitialCatalog = cboDataBaseName.Text.Trim();
            }
            // 调整连接字符串
            if (rdoValidateByWindows.Checked)
                _connectionStringBuilder.IntegratedSecurity = true;
            // 返回连接字符串
            return _connectionStringBuilder.ConnectionString;
        }
        #endregion
        #region Public Methods
        /// <summary>
        /// 无参构造
        /// </summary>
        public frmConnectionConfig(string applicationName)
        {
            // 构建设计器控件
            InitializeComponent();
            // 保存当前应用程序名称
            _applicationName = applicationName;
            // 创建连接字符串创建者
            _connectionStringBuilder = new SqlConnectionStringBuilder();
            _connectionStringBuilder.IntegratedSecurity = true;
            //_connectionStringBuilder.ApplicationName = _applicationName;
            //_connectionStringBuilder.AsynchronousProcessing = true;
            //_connectionStringBuilder.Encrypt = true;
        } 
        #endregion
        #region Event Handlers
        /// <summary>
        /// 数据源 列表下拉事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboSqlDataSource_DropDown(object sender, EventArgs e)
        {
            // 如果 数据源 列表条目为空
            if (cboSqlDataSource.Items.Count == 0)
            {
                // 获取 本地网络所有 SQL Server 实例(数据源)
                GetSqlDataSource();
            }
        }
        /// <summary>
        /// 数据库 列表获得焦点事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboDataBaseName_Enter(object sender, EventArgs e)
        {
            // 获取当前服务器上所有数据库名称
            GetDataBaseName();
        }
        /// <summary>
        /// 选择选项卡页事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tcServerInfo_Selecting(object sender, TabControlCancelEventArgs e)
        {
            // 如果 数据源 列表条目为空
            if (cboSqlDataSource.Items.Count == 0 && e.TabPage == tpServerInfo)
            {
                // 获取 本地网络所有 SQL Server 实例(数据源)
                GetSqlDataSource();
            }
        }
        /// <summary>
        /// [刷新]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnRefresh_Click(object sender, EventArgs e)
        {
            // 获取 本地网络所有 SQL Server 实例(数据源)
            GetSqlDataSource();
        }
        /// <summary>
        /// [使用 SQL Server 身份验证]单选按钮 Checked 属性更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rdoValidateBySQLServer_CheckedChanged(object sender, EventArgs e)
        {
            if (rdoValidateBySQLServer.Checked)
            {
                _connectionStringBuilder.IntegratedSecurity = false;
                lblUserName.Enabled = true;
                txtUserName.Enabled = true;
                lblPassword.Enabled = true;
                txtPassword.Enabled = true;
                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                    gbConnectToADataBase.Enabled = true;
                else
                    gbConnectToADataBase.Enabled = false;
            }
            else
            {
                _connectionStringBuilder.IntegratedSecurity = true;
                lblUserName.Enabled = false;
                txtUserName.Enabled = false;
                lblPassword.Enabled = false;
                txtPassword.Enabled = false;
                if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
                    gbConnectToADataBase.Enabled = true;
                else
                    gbConnectToADataBase.Enabled = false;
            }
        }
        /// <summary>
        /// [附加一个数据库文件]单选按钮 Checked 属性更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rdoAttachADataBaseFile_CheckedChanged(object sender, EventArgs e)
        {
            if (rdoAttachADataBaseFile.Checked)
            {
                cboDataBaseName.Enabled = false;
                txtDataBaseFilePath.Enabled = true;
                btnBrowse.Enabled = true;
                lblLogicalName.Enabled = true;
                txtLogicalName.Enabled = true;
            }
            else
            {
                cboDataBaseName.Enabled = true;
                txtDataBaseFilePath.Enabled = false;
                btnBrowse.Enabled = false;
                lblLogicalName.Enabled = false;
                txtLogicalName.Enabled = false;
            }
        }
        
        /// <summary>
        /// 数据源 列表 Text 值更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboSqlDataSource_TextChanged(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim())
                && _connectionStringBuilder.IntegratedSecurity == true
                || !string.IsNullOrEmpty(txtUserName.Text.Trim())
                && _connectionStringBuilder.IntegratedSecurity == false)
            {
                gbConnectToADataBase.Enabled = true;
                btnOK.Enabled = true;
            }
            else
            {
                gbConnectToADataBase.Enabled = false;
                btnOK.Enabled = false;
            }
        }
        /// <summary>
        /// [用户名]文本框文本更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void txtUserName_TextChanged(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                gbConnectToADataBase.Enabled = true;
            else
                gbConnectToADataBase.Enabled = false;
        }
        /// <summary>
        /// [测试连接]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnTestConnection_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
            {
                // 创建连接对象
                using (SqlConnection con = new SqlConnection(GetConnectionString()))
                {
                    try
                    {
                        // 打开数据库连接
                        con.Open();
                        // 给出用户提示
                        MessageBox.Show(
                            "测试连接成功。",
                            this.Text,
                            MessageBoxButtons.OK,
                            MessageBoxIcon.Information);
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(
                        ex.Message,
                        this.Text,
                        MessageBoxButtons.OK,
                        MessageBoxIcon.Error);
                    }
                    finally
                    {
                        // 关闭数据库连接
                        con.Close();
                    }
                }
            }
            else
            {
                MessageBox.Show(
                    "无法测试此连接，因为没有指定服务器名称。",
                    this.Text,
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
        }
        /// <summary>
        /// [确定]按钮点击事件 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOK_Click(object sender, EventArgs e)
        {
            try
            {
                // 创建应用程序配置文件
                string configFilePath = string.Format(@"{0}.config", Application.ExecutablePath);
                Configuration configuration = null;
                if (!File.Exists(configFilePath))
                {
                    FileStream fs = null;
                    try
                    {
                        fs = new FileStream(configFilePath, FileMode.CreateNew);
                        fs.SetLength(0);
                    }
                    catch { }   // 不弹出异常提示
                    finally
                    {
                        fs.Close();
                    }
                }
                configuration = ConfigurationManager.OpenExeConfiguration(configFilePath);
                // configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
                // 遍历检验 ConnectionType 项是否存在
                bool appSettingsExist = false;
                foreach (KeyValueConfigurationElement element in configuration.AppSettings.Settings)
                {
                    // 如果存在
                    if (element.Key == "ConnectionType")
                    {
                        // 标识存在
                        appSettingsExist = true;
                        break;
                    }
                }
                // 如果存在
                if (appSettingsExist)
                    // 修改配置节点
                    configuration.AppSettings.Settings["ConnectionType"].Value = "SQLSERVER";
                else
                    // 添加配置节点
                    configuration.AppSettings.Settings.Add("ConnectionType", "SQLSERVER");
                // 遍历检验 SQLSERVER 项是否存在
                bool connectionStringExist = false;
                foreach (ConnectionStringSettings setting in configuration.ConnectionStrings.ConnectionStrings)
                {
                    // 如果存在
                    if (setting.Name == "SQLSERVER")
                    {
                        // 标识存在
                        connectionStringExist = true;
                    }
                }
                // 如果存在
                if (connectionStringExist)
                {
                    // 修改配置节点
                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ConnectionString =
                        GetConnectionString();
                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ProviderName =
                        "System.Data.SqlClient";
                }
                else
                {
                    // 添加连接字符串节点
                    configuration.ConnectionStrings.ConnectionStrings.Add(
                        new ConnectionStringSettings(
                        "SQLSERVER",
                        GetConnectionString(),
                        "System.Data.SqlClient"));
                }
                // 保存配置
                configuration.SaveAs(
                    string.Format(@"{0}.config", Application.ExecutablePath.Replace(".EXE", ".exe")),
                    ConfigurationSaveMode.Minimal);
                // 关闭窗体
                this.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    string.Format("保存数据库连接配置时发生以下错误：/r/n/r/n{0}", ex.Message),
                    this.Text,
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
        }
        /// <summary>
        /// [取消]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Close();
        }
        /// <summary>
        /// [浏览]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnBrowse_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofDlg = new OpenFileDialog();
            ofDlg.Title = "选择 SQL Server 数据库文件";
            ofDlg.Filter = "Microsoft SQL Server 数据库(*.mdf)|*.mdf|所有文件(*.*)|*.*";
            ofDlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            DialogResult result = ofDlg.ShowDialog(this);
            if (result == DialogResult.OK)
                txtDataBaseFilePath.Text = ofDlg.FileName;
        }
        /// <summary>
        /// [获取连接字符串]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnGetConnectionString_Click(object sender, EventArgs e)
        {
            this.txtConnectionString.Text = GetConnectionString();
        }
        #endregion
    }
}

设计器源码：

namespace CodingMouse.CMCSharpSDK.UI.Forms
{
partial class frmConnectionConfig
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.cboSqlDataSource = new System.Windows.Forms.ComboBox();
this.tcServerInfo = new System.Windows.Forms.TabControl();
this.tpConnectionInfo = new System.Windows.Forms.TabPage();
this.gbConnectToADataBase = new System.Windows.Forms.GroupBox();
this.txtLogicalName = new System.Windows.Forms.TextBox();
this.lblLogicalName = new System.Windows.Forms.Label();
this.btnBrowse = new System.Windows.Forms.Button();
this.cboDataBaseName = new System.Windows.Forms.ComboBox();
this.txtDataBaseFilePath = new System.Windows.Forms.TextBox();
this.rdoAttachADataBaseFile = new System.Windows.Forms.RadioButton();
this.rdoSelectOrEnterADataBaseName = new System.Windows.Forms.RadioButton();
this.gbLogOnToTheServer = new System.Windows.Forms.GroupBox();
this.txtPassword = new System.Windows.Forms.TextBox();
this.txtUserName = new System.Windows.Forms.TextBox();
this.lblPassword = new System.Windows.Forms.Label();
this.lblUserName = new System.Windows.Forms.Label();
this.rdoValidateBySQLServer = new System.Windows.Forms.RadioButton();
this.rdoValidateByWindows = new System.Windows.Forms.RadioButton();
this.tpServerInfo = new System.Windows.Forms.TabPage();
this.dgvServerInfo = new System.Windows.Forms.DataGridView();
this.toolTip = new System.Windows.Forms.ToolTip(this.components);
this.btnRefresh = new System.Windows.Forms.Button();
this.lblServer = new System.Windows.Forms.Label();
this.btnGetConnectionString = new System.Windows.Forms.Button();
this.btnCancel = new System.Windows.Forms.Button();
this.btnOK = new System.Windows.Forms.Button();
this.btnTestConnection = new System.Windows.Forms.Button();
this.lblSplit = new System.Windows.Forms.Label();
this.txtConnectionString = new System.Windows.Forms.TextBox();
this.tcServerInfo.SuspendLayout();
this.tpConnectionInfo.SuspendLayout();
this.gbConnectToADataBase.SuspendLayout();
this.gbLogOnToTheServer.SuspendLayout();
this.tpServerInfo.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dgvServerInfo)).BeginInit();
this.SuspendLayout();
//
// cboSqlDataSource
//
this.cboSqlDataSource.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.cboSqlDataSource.FormattingEnabled = true;
this.cboSqlDataSource.Location = new System.Drawing.Point(12, 24);
this.cboSqlDataSource.Name = "cboSqlDataSource";
this.cboSqlDataSource.Size = new System.Drawing.Size(269, 20);
this.cboSqlDataSource.TabIndex = 1;
this.cboSqlDataSource.Leave += new System.EventHandler(this.cboSqlDataSource_Leave);
this.cboSqlDataSource.TextChanged += new System.EventHandler(this.cboSqlDataSource_TextChanged);
this.cboSqlDataSource.DropDown += new System.EventHandler(this.cboSqlDataSource_DropDown);
//
// tcServerInfo
//
this.tcServerInfo.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.tcServerInfo.Controls.Add(this.tpConnectionInfo);
this.tcServerInfo.Controls.Add(this.tpServerInfo);
this.tcServerInfo.HotTrack = true;
this.tcServerInfo.Location = new System.Drawing.Point(12, 50);
this.tcServerInfo.Name = "tcServerInfo";
this.tcServerInfo.SelectedIndex = 0;
this.tcServerInfo.ShowToolTips = true;
this.tcServerInfo.Size = new System.Drawing.Size(350, 304);
this.tcServerInfo.TabIndex = 3;
this.tcServerInfo.Selecting += new System.Windows.Forms.TabControlCancelEventHandler(this.tcServerInfo_Selecting);
//
// tpConnectionInfo
//
this.tpConnectionInfo.Controls.Add(this.gbConnectToADataBase);
this.tpConnectionInfo.Controls.Add(this.gbLogOnToTheServer);
this.tpConnectionInfo.Location = new System.Drawing.Point(4, 21);
this.tpConnectionInfo.Name = "tpConnectionInfo";
this.tpConnectionInfo.Padding = new System.Windows.Forms.Padding(3);
this.tpConnectionInfo.Size = new System.Drawing.Size(342, 279);
this.tpConnectionInfo.TabIndex = 0;
this.tpConnectionInfo.Text = "数据库连接信息";
this.tpConnectionInfo.UseVisualStyleBackColor = true;
//
// gbConnectToADataBase
//
this.gbConnectToADataBase.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.gbConnectToADataBase.Controls.Add(this.txtLogicalName);
this.gbConnectToADataBase.Controls.Add(this.lblLogicalName);
this.gbConnectToADataBase.Controls.Add(this.btnBrowse);
this.gbConnectToADataBase.Controls.Add(this.cboDataBaseName);
this.gbConnectToADataBase.Controls.Add(this.txtDataBaseFilePath);
this.gbConnectToADataBase.Controls.Add(this.rdoAttachADataBaseFile);
this.gbConnectToADataBase.Controls.Add(this.rdoSelectOrEnterADataBaseName);
this.gbConnectToADataBase.Enabled = false;
this.gbConnectToADataBase.Location = new System.Drawing.Point(6, 129);
this.gbConnectToADataBase.Name = "gbConnectToADataBase";
this.gbConnectToADataBase.Size = new System.Drawing.Size(330, 144);
this.gbConnectToADataBase.TabIndex = 1;
this.gbConnectToADataBase.TabStop = false;
this.gbConnectToADataBase.Text = "连接到一个数据库";
//
// txtLogicalName
//
this.txtLogicalName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtLogicalName.Enabled = false;
this.txtLogicalName.Location = new System.Drawing.Point(6, 117);
this.txtLogicalName.Name = "txtLogicalName";
this.txtLogicalName.Size = new System.Drawing.Size(318, 21);
this.txtLogicalName.TabIndex = 6;
//
// lblLogicalName
//
this.lblLogicalName.AutoSize = true;
this.lblLogicalName.Enabled = false;
this.lblLogicalName.Location = new System.Drawing.Point(4, 102);
this.lblLogicalName.Name = "lblLogicalName";
this.lblLogicalName.Size = new System.Drawing.Size(65, 12);
this.lblLogicalName.TabIndex = 5;
this.lblLogicalName.Text = "逻辑名(&L):";
//
// btnBrowse
//
this.btnBrowse.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btnBrowse.Enabled = false;
this.btnBrowse.Location = new System.Drawing.Point(244, 78);
this.btnBrowse.Name = "btnBrowse";
this.btnBrowse.Size = new System.Drawing.Size(80, 21);
this.btnBrowse.TabIndex = 4;
this.btnBrowse.Text = "浏览(&B)...";
this.btnBrowse.UseVisualStyleBackColor = true;
this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);
//
// cboDataBaseName
//
this.cboDataBaseName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.cboDataBaseName.FormattingEnabled = true;
this.cboDataBaseName.Location = new System.Drawing.Point(6, 36);
this.cboDataBaseName.Name = "cboDataBaseName";
this.cboDataBaseName.Size = new System.Drawing.Size(318, 20);
this.cboDataBaseName.TabIndex = 1;
this.cboDataBaseName.Enter += new System.EventHandler(this.cboDataBaseName_Enter);
//
// txtDataBaseFilePath
//
this.txtDataBaseFilePath.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtDataBaseFilePath.Enabled = false;
this.txtDataBaseFilePath.Location = new System.Drawing.Point(6, 78);
this.txtDataBaseFilePath.Name = "txtDataBaseFilePath";
this.txtDataBaseFilePath.Size = new System.Drawing.Size(232, 21);
this.txtDataBaseFilePath.TabIndex = 3;
//
// rdoAttachADataBaseFile
//
this.rdoAttachADataBaseFile.AutoSize = true;
this.rdoAttachADataBaseFile.Location = new System.Drawing.Point(6, 62);
this.rdoAttachADataBaseFile.Name = "rdoAttachADataBaseFile";
this.rdoAttachADataBaseFile.Size = new System.Drawing.Size(155, 16);
this.rdoAttachADataBaseFile.TabIndex = 2;
this.rdoAttachADataBaseFile.Text = "附加一个数据库文件(&H):";
this.rdoAttachADataBaseFile.UseVisualStyleBackColor = true;
this.rdoAttachADataBaseFile.CheckedChanged += new System.EventHandler(this.rdoAttachADataBaseFile_CheckedChanged);
//
// rdoSelectOrEnterADataBaseName
//
this.rdoSelectOrEnterADataBaseName.AutoSize = true;
this.rdoSelectOrEnterADataBaseName.Checked = true;
this.rdoSelectOrEnterADataBaseName.Location = new System.Drawing.Point(6, 20);
this.rdoSelectOrEnterADataBaseName.Name = "rdoSelectOrEnterADataBaseName";
this.rdoSelectOrEnterADataBaseName.Size = new System.Drawing.Size(179, 16);
this.rdoSelectOrEnterADataBaseName.TabIndex = 0;
this.rdoSelectOrEnterADataBaseName.TabStop = true;
this.rdoSelectOrEnterADataBaseName.Text = "选择或输入一个数据库名(&D):";
this.rdoSelectOrEnterADataBaseName.UseVisualStyleBackColor = true;
//
// gbLogOnToTheServer
//
this.gbLogOnToTheServer.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.gbLogOnToTheServer.Controls.Add(this.txtPassword);
this.gbLogOnToTheServer.Controls.Add(this.txtUserName);
this.gbLogOnToTheServer.Controls.Add(this.lblPassword);
this.gbLogOnToTheServer.Controls.Add(this.lblUserName);
this.gbLogOnToTheServer.Controls.Add(this.rdoValidateBySQLServer);
this.gbLogOnToTheServer.Controls.Add(this.rdoValidateByWindows);
this.gbLogOnToTheServer.Location = new System.Drawing.Point(6, 6);
this.gbLogOnToTheServer.Name = "gbLogOnToTheServer";
this.gbLogOnToTheServer.Size = new System.Drawing.Size(330, 117);
this.gbLogOnToTheServer.TabIndex = 0;
this.gbLogOnToTheServer.TabStop = false;
this.gbLogOnToTheServer.Text = "登录到服务器";
//
// txtPassword
//
this.txtPassword.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtPassword.Enabled = false;
this.txtPassword.Location = new System.Drawing.Point(93, 88);
this.txtPassword.Name = "txtPassword";
this.txtPassword.PasswordChar = '*';
this.txtPassword.Size = new System.Drawing.Size(231, 21);
this.txtPassword.TabIndex = 5;
this.txtPassword.TextChanged += new System.EventHandler(this.txtPassword_TextChanged);
//
// txtUserName
//
this.txtUserName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtUserName.Enabled = false;
this.txtUserName.Location = new System.Drawing.Point(93, 61);
this.txtUserName.Name = "txtUserName";
this.txtUserName.Size = new System.Drawing.Size(231, 21);
this.txtUserName.TabIndex = 3;
this.txtUserName.TextChanged += new System.EventHandler(this.txtUserName_TextChanged);
//
// lblPassword
//
this.lblPassword.AutoSize = true;
this.lblPassword.Enabled = false;
this.lblPassword.Location = new System.Drawing.Point(22, 91);
this.lblPassword.Name = "lblPassword";
this.lblPassword.Size = new System.Drawing.Size(65, 12);
this.lblPassword.TabIndex = 4;
this.lblPassword.Text = "密码(&P):";
//
// lblUserName
//
this.lblUserName.AutoSize = true;
this.lblUserName.Enabled = false;
this.lblUserName.Location = new System.Drawing.Point(22, 64);
this.lblUserName.Name = "lblUserName";
this.lblUserName.Size = new System.Drawing.Size(65, 12);
this.lblUserName.TabIndex = 2;
this.lblUserName.Text = "用户名(&U):";
//
// rdoValidateBySQLServer
//
this.rdoValidateBySQLServer.AutoSize = true;
this.rdoValidateBySQLServer.Location = new System.Drawing.Point(6, 42);
this.rdoValidateBySQLServer.Name = "rdoValidateBySQLServer";
this.rdoValidateBySQLServer.Size = new System.Drawing.Size(185, 16);
this.rdoValidateBySQLServer.TabIndex = 1;
this.rdoValidateBySQLServer.Text = "使用 SQL Server 身份验证(&Q)";
this.rdoValidateBySQLServer.UseVisualStyleBackColor = true;
this.rdoValidateBySQLServer.CheckedChanged += new System.EventHandler(this.rdoValidateBySQLServer_CheckedChanged);
//
// rdoValidateByWindows
//
this.rdoValidateByWindows.AutoSize = true;
this.rdoValidateByWindows.Checked = true;
this.rdoValidateByWindows.Location = new System.Drawing.Point(6, 20);
this.rdoValidateByWindows.Name = "rdoValidateByWindows";
this.rdoValidateByWindows.Size = new System.Drawing.Size(167, 16);
this.rdoValidateByWindows.TabIndex = 0;
this.rdoValidateByWindows.TabStop = true;
this.rdoValidateByWindows.Text = "使用 Windows 身份验证(&W)";
this.rdoValidateByWindows.UseVisualStyleBackColor = true;
//
// tpServerInfo
//
this.tpServerInfo.Controls.Add(this.dgvServerInfo);
this.tpServerInfo.Location = new System.Drawing.Point(4, 21);
this.tpServerInfo.Name = "tpServerInfo";
this.tpServerInfo.Padding = new System.Windows.Forms.Padding(3);
this.tpServerInfo.Size = new System.Drawing.Size(342, 279);
this.tpServerInfo.TabIndex = 1;
this.tpServerInfo.Text = "服务器详细信息";
this.tpServerInfo.UseVisualStyleBackColor = true;
//
// dgvServerInfo
//
this.dgvServerInfo.AllowUserToAddRows = false;
this.dgvServerInfo.AllowUserToDeleteRows = false;
this.dgvServerInfo.AllowUserToResizeRows = false;
this.dgvServerInfo.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;
this.dgvServerInfo.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dgvServerInfo.Dock = System.Windows.Forms.DockStyle.Fill;
this.dgvServerInfo.Location = new System.Drawing.Point(3, 3);
this.dgvServerInfo.MultiSelect = false;
this.dgvServerInfo.Name = "dgvServerInfo";
this.dgvServerInfo.ReadOnly = true;
this.dgvServerInfo.RowHeadersVisible = false;
this.dgvServerInfo.RowTemplate.Height = 23;
this.dgvServerInfo.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
this.dgvServerInfo.Size = new System.Drawing.Size(336, 273);
this.dgvServerInfo.TabIndex = 0;
//
// toolTip
//
this.toolTip.ShowAlways = true;
//
// btnRefresh
//
this.btnRefresh.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btnRefresh.Location = new System.Drawing.Point(287, 23);
this.btnRefresh.Name = "btnRefresh";
this.btnRefresh.Size = new System.Drawing.Size(75, 21);
this.btnRefresh.TabIndex = 2;
this.btnRefresh.Text = "刷新(&R)";
this.btnRefresh.UseVisualStyleBackColor = true;
this.btnRefresh.Click += new System.EventHandler(this.btnRefresh_Click);
//
// lblServer
//
this.lblServer.AutoSize = true;
this.lblServer.Location = new System.Drawing.Point(10, 9);
this.lblServer.Name = "lblServer";
this.lblServer.Size = new System.Drawing.Size(77, 12);
this.lblServer.TabIndex = 0;
this.lblServer.Text = "服务器名(&E):";
//
// btnGetConnectionString
//
this.btnGetConnectionString.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.btnGetConnectionString.Enabled = false;
this.btnGetConnectionString.Location = new System.Drawing.Point(242, 360);
this.btnGetConnectionString.Name = "btnGetConnectionString";
this.btnGetConnectionString.Size = new System.Drawing.Size(120, 21);
this.btnGetConnectionString.TabIndex = 5;
this.btnGetConnectionString.Text = "获取连接字符串(&G)";
this.btnGetConnectionString.UseVisualStyleBackColor = true;
this.btnGetConnectionString.Click += new System.EventHandler(this.btnGetConnectionString_Click);
//
// btnCancel
//
this.btnCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
this.btnCancel.Location = new System.Drawing.Point(287, 395);
this.btnCancel.Name = "btnCancel";
this.btnCancel.Size = new System.Drawing.Size(75, 21);
this.btnCancel.TabIndex = 9;
this.btnCancel.Text = "取消";
this.btnCancel.UseVisualStyleBackColor = true;
this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
//
// btnOK
//
this.btnOK.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;
this.btnOK.Enabled = false;
this.btnOK.Location = new System.Drawing.Point(206, 395);
this.btnOK.Name = "btnOK";
this.btnOK.Size = new System.Drawing.Size(75, 21);
this.btnOK.TabIndex = 8;
this.btnOK.Text = "确定";
this.btnOK.UseVisualStyleBackColor = true;
this.btnOK.Click += new System.EventHandler(this.btnOK_Click);
//
// btnTestConnection
//
this.btnTestConnection.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.btnTestConnection.Location = new System.Drawing.Point(12, 395);
this.btnTestConnection.Name = "btnTestConnection";
this.btnTestConnection.Size = new System.Drawing.Size(100, 21);
this.btnTestConnection.TabIndex = 7;
this.btnTestConnection.Text = "测试连接(&T)";
this.btnTestConnection.UseVisualStyleBackColor = true;
this.btnTestConnection.Click += new System.EventHandler(this.btnTestConnection_Click);
//
// lblSplit
//
this.lblSplit.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.lblSplit.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.lblSplit.Location = new System.Drawing.Point(12, 387);
this.lblSplit.Name = "lblSplit";
this.lblSplit.Size = new System.Drawing.Size(350, 2);
this.lblSplit.TabIndex = 6;
//
// txtConnectionString
//
this.txtConnectionString.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtConnectionString.Location = new System.Drawing.Point(12, 360);
this.txtConnectionString.Name = "txtConnectionString";
this.txtConnectionString.ReadOnly = true;
this.txtConnectionString.Size = new System.Drawing.Size(224, 21);
this.txtConnectionString.TabIndex = 4;
//
// frmConnectionConfig
//
this.AcceptButton = this.btnOK;
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.CancelButton = this.btnCancel;
this.ClientSize = new System.Drawing.Size(374, 428);
this.Controls.Add(this.txtConnectionString);
this.Controls.Add(this.lblSplit);
this.Controls.Add(this.btnTestConnection);
this.Controls.Add(this.btnOK);
this.Controls.Add(this.btnCancel);
this.Controls.Add(this.btnGetConnectionString);
this.Controls.Add(this.btnRefresh);
this.Controls.Add(this.lblServer);
this.Controls.Add(this.tcServerInfo);
this.Controls.Add(this.cboSqlDataSource);
this.HelpButton = true;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.MinimumSize = new System.Drawing.Size(382, 455);
this.Name = "frmConnectionConfig";
this.ShowIcon = false;
this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "数据库连接配置";
this.tcServerInfo.ResumeLayout(false);
this.tpConnectionInfo.ResumeLayout(false);
this.gbConnectToADataBase.ResumeLayout(false);
this.gbConnectToADataBase.PerformLayout();
this.gbLogOnToTheServer.ResumeLayout(false);
this.gbLogOnToTheServer.PerformLayout();
this.tpServerInfo.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dgvServerInfo)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.ComboBox cboSqlDataSource;
private System.Windows.Forms.TabControl tcServerInfo;
private System.Windows.Forms.TabPage tpConnectionInfo;
private System.Windows.Forms.TabPage tpServerInfo;
private System.Windows.Forms.DataGridView dgvServerInfo;
private System.Windows.Forms.ToolTip toolTip;
private System.Windows.Forms.Label lblServer;
private System.Windows.Forms.Button btnRefresh;
private System.Windows.Forms.GroupBox gbLogOnToTheServer;
private System.Windows.Forms.TextBox txtPassword;
private System.Windows.Forms.TextBox txtUserName;
private System.Windows.Forms.Label lblPassword;
private System.Windows.Forms.Label lblUserName;
private System.Windows.Forms.RadioButton rdoValidateBySQLServer;
private System.Windows.Forms.RadioButton rdoValidateByWindows;
private System.Windows.Forms.GroupBox gbConnectToADataBase;
private System.Windows.Forms.RadioButton rdoAttachADataBaseFile;
private System.Windows.Forms.RadioButton rdoSelectOrEnterADataBaseName;
private System.Windows.Forms.Button btnGetConnectionString;
private System.Windows.Forms.Button btnCancel;
private System.Windows.Forms.Button btnOK;
private System.Windows.Forms.Button btnTestConnection;
private System.Windows.Forms.ComboBox cboDataBaseName;
private System.Windows.Forms.TextBox txtDataBaseFilePath;
private System.Windows.Forms.Button btnBrowse;
private System.Windows.Forms.TextBox txtLogicalName;
private System.Windows.Forms.Label lblLogicalName;
private System.Windows.Forms.Label lblSplit;
private System.Windows.Forms.TextBox txtConnectionString;
}
}
上面是自己写的界面，也可以自己去调用系统的界面

一、添加引用
C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\Microsoft.Data.ConnectionUI.Dialog.dll

二、引入名称空间

C# code: using Microsoft.Data.ConnectionUI;

三、代码

C# code: DataConnectionDialog dlg =new DataConnectionDialog(); dlg.DataSources.Add(DataSource.SqlDataSource); dlg.SelectedDataProvider = DataProvider.SqlDataProvider; DataConnectionDialog.Show(dlg, this);

比如说放在一个按钮的Click事件里

C# code: privatevoid button1_Click(object sender, EventArgs e) { DataConnectionDialog dlg =new DataConnectionDialog(); dlg.DataSources.Add(DataSource.SqlDataSource); dlg.SelectedDataProvider = DataProvider.SqlDataProvider; DataConnectionDialog.Show(dlg, this); }

四、运行
界面出来了，是不是相当的专业!

DataConnectionDialog 还有很多属性，配置这些属性可以改变窗口外观，满足不同需求。