第一步：配置XML文件MenuItems.xml
结点如下所示
代码
<?xml version="1.0" encoding="utf-8" ?>
<Menus>
<MenuItem>
<Text>内部信息维护</Text>
<ItemID>1</ItemID>
<ParentItemID>0</ParentItemID>
<FormName>frmInnerInfo</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Text1.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>多媒体信息维护</Text>
<ItemID>2</ItemID>
<ParentItemID>0</ParentItemID>
<FormName></FormName>
<IsModule>1</IsModule>
<Level>1</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>综合信息维护</Text>
<ItemID>3</ItemID>
<ParentItemID>0</ParentItemID>
<FormName>frmCategory</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Composite.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>系统管理</Text>
<ItemID>4</ItemID>
<ParentItemID>0</ParentItemID>
<FormName></FormName>
<IsModule>1</IsModule>
<Level>1</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>用户管理</Text>
<ItemID>1004</ItemID>
<ParentItemID>4</ParentItemID>
<FormName>frmSystemUsers</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>User.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>角色管理</Text>
<ItemID>1005</ItemID>
<ParentItemID>4</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Role.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>视频管理</Text>
<ItemID>1006</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>图片管理</Text>
<ItemID>1007</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Pic.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>文字消息</Text>
<ItemID>1008</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Text.ico</ImageName>
</MenuItem>
</Menus>
<Menus>
<MenuItem>
<Text>内部信息维护</Text>
<ItemID>1</ItemID>
<ParentItemID>0</ParentItemID>
<FormName>frmInnerInfo</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Text1.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>多媒体信息维护</Text>
<ItemID>2</ItemID>
<ParentItemID>0</ParentItemID>
<FormName></FormName>
<IsModule>1</IsModule>
<Level>1</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>综合信息维护</Text>
<ItemID>3</ItemID>
<ParentItemID>0</ParentItemID>
<FormName>frmCategory</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Composite.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>系统管理</Text>
<ItemID>4</ItemID>
<ParentItemID>0</ParentItemID>
<FormName></FormName>
<IsModule>1</IsModule>
<Level>1</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>用户管理</Text>
<ItemID>1004</ItemID>
<ParentItemID>4</ParentItemID>
<FormName>frmSystemUsers</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>User.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>角色管理</Text>
<ItemID>1005</ItemID>
<ParentItemID>4</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>1</Level>
<ImageName>Role.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>视频管理</Text>
<ItemID>1006</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Video.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>图片管理</Text>
<ItemID>1007</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Pic.ico</ImageName>
</MenuItem>
<MenuItem>
<Text>文字消息</Text>
<ItemID>1008</ItemID>
<ParentItemID>2</ParentItemID>
<FormName>frmSystemRole</FormName>
<IsModule>0</IsModule>
<Level>2</Level>
<ImageName>Text.ico</ImageName>
</MenuItem>
</Menus>
其中Text为菜单或工具栏显示内容，ItemID为结点编号，ParentItemID为父结点编号，FormName结点响应的Form名称，IsModule为是否有子结点（1有0没有）Level结点层级，ImageName对应的图标名称
第二步：设置主窗体为MDI窗体
第三步：代码实现，如下，
代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Reflection;
using System.Diagnostics;
using System.Threading;
namespace QueryMachine.BackManager
{
public partial class frmMDIMain : Form
{
#region 变量初始化
private DataSet ds = new DataSet();
string strRoleFilter = "";
/// <summary>
/// <summary>
/// 确认关闭么？
/// </summary>
string resourceClose = "确定要删除么?";
/// <summary>
/// 确认提示 `
/// </summary>
string resourceCloseTip = "确认提示";
/// <summary>
/// 重新登录
/// </summary>
string resourceReLogin = "重新登录";
/// <summary>
/// 退出系统
/// </summary>
string resourceExit = "退出系统";
/// <summary>
/// 已经存在运行的实例
/// </summary>
string resourceAlreadyRunning = "已经存在运行的实例！";
/// <summary>
/// 系统提示
/// </summary>
string resourceSystemTip = "系统提示";
#endregion
#region 根据提供的XML动态创建菜单项，以及定义菜单项要触发的事件
private void CreateToolbar()
{
ToolStrip toolStrip = new ToolStrip();
toolStrip.ImageScalingSize = new System.Drawing.Size(32, 32);
DataView dv = ds.Tables[0].DefaultView;
//通过DataView来过滤数据首先得到最顶层的菜单
dv.RowFilter = "ParentItemID=0";
///根据权限加载响应的菜单
if (strRoleFilter != "")
{
dv.RowFilter = "ItemID in (" + strRoleFilter + ")";
}
for (int i = 0; i < dv.Count; i++)
{
ToolStripButton tsButton = new ToolStripButton();
if (Convert.ToInt16(dv[i]["IsModule"]) == 0)
{
tsButton.Text = dv[i]["Text"].ToString();
tsButton.Name = dv[i]["ItemID"].ToString();
tsButton.Tag = dv[i]["FormName"].ToString();
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
tsButton.Image = Image.FromFile(strPicPath);
}
}
tsButton.ToolTipText = dv[i]["Text"].ToString();
tsButton.Click += new EventHandler(tsButton_Click);
toolStrip.Items.Add(tsButton);
}
else
{
///tsButton.Tag = dv[i]["FormName"].ToString();
//tsButton.Click += new EventHandler(subMenu_Click);
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubTsb(Convert.ToInt32(dv[i]["ItemID"]), ds.Tables[0], toolStrip);
}
}
this.Controls.Add(toolStrip);
}
void tsButton_Click(object sender, EventArgs e)
{
//tag属性在这里有用到。
///ToolStripItem
string formName = ((ToolStripItem)sender).Tag.ToString();
CreateFormInstance(formName, Convert.ToInt32(((ToolStripItem)sender).Name));
}
private void CreateSubTsb(int ItemID, DataTable dt, ToolStrip toolStrip)
{
DataView dv = new DataView(dt);
//过滤出当前父菜单下在所有子菜单数据(仅为下一层的)
dv.RowFilter = "ParentItemID=" + ItemID.ToString();
for (int i = 0; i < dv.Count; i++)
{
/***********************************************************************/
ToolStripButton tsButton = new ToolStripButton();
if (Convert.ToInt16(dv[i]["IsModule"]) == 0)
{
tsButton.Text = dv[i]["Text"].ToString();
tsButton.Name = dv[i]["ItemID"].ToString();
tsButton.Tag = dv[i]["FormName"].ToString();
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
tsButton.Image = Image.FromFile(strPicPath);
}
}
tsButton.ToolTipText = dv[i]["Text"].ToString();
tsButton.Click += new EventHandler(tsButton_Click);
toolStrip.Items.Add(tsButton);
}
else
{
///tsButton.Tag = dv[i]["FormName"].ToString();
//tsButton.Click += new EventHandler(subMenu_Click);
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubTsb(Convert.ToInt32(dv[i]["ItemID"]), dt, toolStrip);
}
}
}
#endregion
#region 动态创建菜单
private void CreateMenu()
{
//定义一个主菜单
MenuStrip mainMenu = new MenuStrip();
DataView dv = ds.Tables[0].DefaultView;
//通过DataView来过滤数据首先得到最顶层的菜单
dv.RowFilter = "ParentItemID=0";
///根据权限加载相应的菜单
if (strRoleFilter!="")
{
dv.RowFilter = "ItemID in (" + strRoleFilter + ")";
}
for (int i = 0; i < dv.Count; i++)
{
//创建一个菜单项
ToolStripMenuItem topMenu = new ToolStripMenuItem();
//给菜单赋Text值。也就是在界面上看到的值。
topMenu.Text = dv[i]["Text"].ToString();
topMenu.Name = dv[i]["ItemID"].ToString();
//如果是有下级菜单则通过CreateSubMenu方法来创建下级菜单
if (Convert.ToInt16(dv[i]["IsModule"]) == 1)
{
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubMenu(ref topMenu, Convert.ToInt32(dv[i]["ItemID"]), ds.Tables[0]);
}
else
{
topMenu.Tag = dv[i]["FormName"].ToString();
topMenu.Click += new EventHandler(subMenu_Click);
}
//显示应用程序中已打开的 MDI 子窗体列表的菜单项
mainMenu.MdiWindowListItem = topMenu;
//将递归附加好的菜单加到菜单根项上。
mainMenu.Items.Add(topMenu);
}
ToolStripMenuItem exitMenu = new ToolStripMenuItem();
mainMenu.Dock = DockStyle.Top;
mainMenu.Items.Add(new ToolStripMenuItem(resourceReLogin, null, new EventHandler(ReLogin_Click)));
mainMenu.Items.Add(new ToolStripMenuItem(resourceExit, null, new EventHandler(ExitSysMenu_Click)));
//这句很重要。如果不写这句菜单将不会出现在主窗体中。
this.Controls.Add(mainMenu);
}
/// <summary>
/// 创建子菜单
/// </summary>
/// <param name="topMenu">父菜单项</param>
/// <param name="ItemID">父菜单的ID</param>
/// <param name="dt">所有菜单数据集</param>
private void CreateSubMenu(ref ToolStripMenuItem topMenu, int ItemID, DataTable dt)
{
DataView dv = new DataView(dt);
//过滤出当前父菜单下在所有子菜单数据(仅为下一层的)
dv.RowFilter = "ParentItemID=" + ItemID.ToString();
for (int i = 0; i < dv.Count; i++)
{
//创建子菜单项
ToolStripMenuItem subMenu = new ToolStripMenuItem();
subMenu.Text = dv[i]["Text"].ToString();
subMenu.Name = dv[i]["ItemID"].ToString();
//如果还有子菜单则继续递归加载。
if (Convert.ToInt16(dv[i]["IsModule"]) == 1)
{
//递归调用
CreateSubMenu(ref subMenu, Convert.ToInt32(dv[i]["ItemID"]), dt);
}
else
{
//扩展属性可以加任何想要的值。这里用formName属性来加载窗体。
subMenu.Tag = dv[i]["FormName"].ToString();
//给没有子菜单的菜单项加事件。
///subMenu.Click += new EventHandler(subMenu_Click);
subMenu.Click += new EventHandler(subMenu_Click);
}
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
//设置菜单项前面的图票为16X16的图片文件。
Image img = Image.FromFile(strPicPath);
subMenu.Image = img;
subMenu.Image.Tag = dv[i]["ImageName"].ToString();
}
}
//将菜单加到顶层菜单下。
topMenu.DropDownItems.Add(subMenu);
}
}
void subMenu_Click(object sender, EventArgs e)
{
//tag属性在这里有用到。
string formName = ((ToolStripMenuItem)sender).Tag.ToString();
CreateFormInstance(formName, Convert.ToInt32(((ToolStripMenuItem)sender).Name));
}
private void CreateFormInstance(string formName, int id)
{
bool flag = false;
//遍历主窗口上的所有子菜单
for (int i = 0; i < this.MdiChildren.Length; i++)
{
//如果所点的窗口被打开则重新激活
if (this.MdiChildren[i].Tag.ToString().ToLower() == formName.ToLower())
{
this.MdiChildren[i].Activate();
this.MdiChildren[i].Show();
this.MdiChildren[i].WindowState = FormWindowState.Normal;
flag = true;
break;
}
}
if (!flag)
{
//如果不存在则用反射创建form窗体实例。
object frmObj = null;
frmObj = Activator.CreateInstance(Type.GetType("QueryMachine.BackManager." + formName));
// object frmObj = asm.CreateInstance("Kimbanx.SecurityDiskSystem.FactoryTools." + formName);//程序集+form的类名。
Form frms = (Form)frmObj;
//tag属性要重新写一次，否则在第二次的时候取不到。原因还不清楚。有知道的望告知。
frms.Tag = formName.ToString();
frms.MdiParent = this;
frms.Show();
}
}
#endregion
#region 窗体关闭事件，窗体加载事件，窗体构造函数
public frmMDIMain()
{
InitializeComponent();
ds.ReadXml(System.AppDomain.CurrentDomain.BaseDirectory.ToString() + "MenuItems.xml");
for (int i = 0; i < UserInfo.lstModule.Count; i++)
{
strRoleFilter += (strRoleFilter == "" ? UserInfo.lstModule[i].ToString() : ("," + UserInfo.lstModule[i].ToString()));
}
}
private void frmMDIMain_Load(object sender, EventArgs e)
{
CreateToolbar();
CreateMenu();
}
private void ExitSysMenu_Click(object sender, EventArgs e)
{
this.Close();
}
private void ReLogin_Click(object sender, EventArgs e)
{
Process process = new Process();
process.StartInfo.FileName = System.AppDomain.CurrentDomain.BaseDirectory.ToString()+"QueryMachine.exe";
process.Start();
Application.Exit();
bool flag = false;
Mutex mutex = new Mutex(true, "QueryMachine.BackManager.frmLogin", out flag);
if (flag)
{
frmLogin Login = new frmLogin();
if (Login.ShowDialog() == DialogResult.OK)
{
Application.Run(new frmMDIMain());
}
}
else
{
MessageBox.Show(resourceAlreadyRunning,resourceSystemTip, MessageBoxButtons.OK, MessageBoxIcon.Information);
Application.Exit();
}
}
#endregion
private void frmMDIMain_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason != CloseReason.ApplicationExitCall)
{
DialogResult re = MessageBox.Show(resourceClose,resourceCloseTip, MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (re == DialogResult.Yes)
{
e.Cancel = false;
Application.Exit();
}
else
{
e.Cancel = true;
}
}
}
}
}
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Reflection;
using System.Diagnostics;
using System.Threading;
namespace QueryMachine.BackManager
{
public partial class frmMDIMain : Form
{
#region 变量初始化
private DataSet ds = new DataSet();
string strRoleFilter = "";
/// <summary>
/// <summary>
/// 确认关闭么？
/// </summary>
string resourceClose = "确定要删除么?";
/// <summary>
/// 确认提示 `
/// </summary>
string resourceCloseTip = "确认提示";
/// <summary>
/// 重新登录
/// </summary>
string resourceReLogin = "重新登录";
/// <summary>
/// 退出系统
/// </summary>
string resourceExit = "退出系统";
/// <summary>
/// 已经存在运行的实例
/// </summary>
string resourceAlreadyRunning = "已经存在运行的实例！";
/// <summary>
/// 系统提示
/// </summary>
string resourceSystemTip = "系统提示";
#endregion
#region 根据提供的XML动态创建菜单项，以及定义菜单项要触发的事件
private void CreateToolbar()
{
ToolStrip toolStrip = new ToolStrip();
toolStrip.ImageScalingSize = new System.Drawing.Size(32, 32);
DataView dv = ds.Tables[0].DefaultView;
//通过DataView来过滤数据首先得到最顶层的菜单
dv.RowFilter = "ParentItemID=0";
///根据权限加载响应的菜单
if (strRoleFilter != "")
{
dv.RowFilter = "ItemID in (" + strRoleFilter + ")";
}
for (int i = 0; i < dv.Count; i++)
{
ToolStripButton tsButton = new ToolStripButton();
if (Convert.ToInt16(dv[i]["IsModule"]) == 0)
{
tsButton.Text = dv[i]["Text"].ToString();
tsButton.Name = dv[i]["ItemID"].ToString();
tsButton.Tag = dv[i]["FormName"].ToString();
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
tsButton.Image = Image.FromFile(strPicPath);
}
}
tsButton.ToolTipText = dv[i]["Text"].ToString();
tsButton.Click += new EventHandler(tsButton_Click);
toolStrip.Items.Add(tsButton);
}
else
{
///tsButton.Tag = dv[i]["FormName"].ToString();
//tsButton.Click += new EventHandler(subMenu_Click);
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubTsb(Convert.ToInt32(dv[i]["ItemID"]), ds.Tables[0], toolStrip);
}
}
this.Controls.Add(toolStrip);
}
void tsButton_Click(object sender, EventArgs e)
{
//tag属性在这里有用到。
///ToolStripItem
string formName = ((ToolStripItem)sender).Tag.ToString();
CreateFormInstance(formName, Convert.ToInt32(((ToolStripItem)sender).Name));
}
private void CreateSubTsb(int ItemID, DataTable dt, ToolStrip toolStrip)
{
DataView dv = new DataView(dt);
//过滤出当前父菜单下在所有子菜单数据(仅为下一层的)
dv.RowFilter = "ParentItemID=" + ItemID.ToString();
for (int i = 0; i < dv.Count; i++)
{
/***********************************************************************/
ToolStripButton tsButton = new ToolStripButton();
if (Convert.ToInt16(dv[i]["IsModule"]) == 0)
{
tsButton.Text = dv[i]["Text"].ToString();
tsButton.Name = dv[i]["ItemID"].ToString();
tsButton.Tag = dv[i]["FormName"].ToString();
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
tsButton.Image = Image.FromFile(strPicPath);
}
}
tsButton.ToolTipText = dv[i]["Text"].ToString();
tsButton.Click += new EventHandler(tsButton_Click);
toolStrip.Items.Add(tsButton);
}
else
{
///tsButton.Tag = dv[i]["FormName"].ToString();
//tsButton.Click += new EventHandler(subMenu_Click);
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubTsb(Convert.ToInt32(dv[i]["ItemID"]), dt, toolStrip);
}
}
}
#endregion
#region 动态创建菜单
private void CreateMenu()
{
//定义一个主菜单
MenuStrip mainMenu = new MenuStrip();
DataView dv = ds.Tables[0].DefaultView;
//通过DataView来过滤数据首先得到最顶层的菜单
dv.RowFilter = "ParentItemID=0";
///根据权限加载相应的菜单
if (strRoleFilter!="")
{
dv.RowFilter = "ItemID in (" + strRoleFilter + ")";
}
for (int i = 0; i < dv.Count; i++)
{
//创建一个菜单项
ToolStripMenuItem topMenu = new ToolStripMenuItem();
//给菜单赋Text值。也就是在界面上看到的值。
topMenu.Text = dv[i]["Text"].ToString();
topMenu.Name = dv[i]["ItemID"].ToString();
//如果是有下级菜单则通过CreateSubMenu方法来创建下级菜单
if (Convert.ToInt16(dv[i]["IsModule"]) == 1)
{
//以ref的方式将顶层菜单传递参数，因为他可以在赋值后再回传。－－也许还有更好的方法^_^.
CreateSubMenu(ref topMenu, Convert.ToInt32(dv[i]["ItemID"]), ds.Tables[0]);
}
else
{
topMenu.Tag = dv[i]["FormName"].ToString();
topMenu.Click += new EventHandler(subMenu_Click);
}
//显示应用程序中已打开的 MDI 子窗体列表的菜单项
mainMenu.MdiWindowListItem = topMenu;
//将递归附加好的菜单加到菜单根项上。
mainMenu.Items.Add(topMenu);
}
ToolStripMenuItem exitMenu = new ToolStripMenuItem();
mainMenu.Dock = DockStyle.Top;
mainMenu.Items.Add(new ToolStripMenuItem(resourceReLogin, null, new EventHandler(ReLogin_Click)));
mainMenu.Items.Add(new ToolStripMenuItem(resourceExit, null, new EventHandler(ExitSysMenu_Click)));
//这句很重要。如果不写这句菜单将不会出现在主窗体中。
this.Controls.Add(mainMenu);
}
/// <summary>
/// 创建子菜单
/// </summary>
/// <param name="topMenu">父菜单项</param>
/// <param name="ItemID">父菜单的ID</param>
/// <param name="dt">所有菜单数据集</param>
private void CreateSubMenu(ref ToolStripMenuItem topMenu, int ItemID, DataTable dt)
{
DataView dv = new DataView(dt);
//过滤出当前父菜单下在所有子菜单数据(仅为下一层的)
dv.RowFilter = "ParentItemID=" + ItemID.ToString();
for (int i = 0; i < dv.Count; i++)
{
//创建子菜单项
ToolStripMenuItem subMenu = new ToolStripMenuItem();
subMenu.Text = dv[i]["Text"].ToString();
subMenu.Name = dv[i]["ItemID"].ToString();
//如果还有子菜单则继续递归加载。
if (Convert.ToInt16(dv[i]["IsModule"]) == 1)
{
//递归调用
CreateSubMenu(ref subMenu, Convert.ToInt32(dv[i]["ItemID"]), dt);
}
else
{
//扩展属性可以加任何想要的值。这里用formName属性来加载窗体。
subMenu.Tag = dv[i]["FormName"].ToString();
//给没有子菜单的菜单项加事件。
///subMenu.Click += new EventHandler(subMenu_Click);
subMenu.Click += new EventHandler(subMenu_Click);
}
string strPicPath = "";
if (dv[i]["ImageName"].ToString().Length > 0)
{
string path = System.Windows.Forms.Application.StartupPath + @"http://www.cnblogs.com/../";
System.IO.Directory.SetCurrentDirectory(path);
strPicPath = System.IO.Directory.GetCurrentDirectory() + @"\ico\" + dv[i]["ImageName"].ToString();
if (File.Exists(strPicPath))
{
//设置菜单项前面的图票为16X16的图片文件。
Image img = Image.FromFile(strPicPath);
subMenu.Image = img;
subMenu.Image.Tag = dv[i]["ImageName"].ToString();
}
}
//将菜单加到顶层菜单下。
topMenu.DropDownItems.Add(subMenu);
}
}
void subMenu_Click(object sender, EventArgs e)
{
//tag属性在这里有用到。
string formName = ((ToolStripMenuItem)sender).Tag.ToString();
CreateFormInstance(formName, Convert.ToInt32(((ToolStripMenuItem)sender).Name));
}
private void CreateFormInstance(string formName, int id)
{
bool flag = false;
//遍历主窗口上的所有子菜单
for (int i = 0; i < this.MdiChildren.Length; i++)
{
//如果所点的窗口被打开则重新激活
if (this.MdiChildren[i].Tag.ToString().ToLower() == formName.ToLower())
{
this.MdiChildren[i].Activate();
this.MdiChildren[i].Show();
this.MdiChildren[i].WindowState = FormWindowState.Normal;
flag = true;
break;
}
}
if (!flag)
{
//如果不存在则用反射创建form窗体实例。
object frmObj = null;
frmObj = Activator.CreateInstance(Type.GetType("QueryMachine.BackManager." + formName));
// object frmObj = asm.CreateInstance("Kimbanx.SecurityDiskSystem.FactoryTools." + formName);//程序集+form的类名。
Form frms = (Form)frmObj;
//tag属性要重新写一次，否则在第二次的时候取不到。原因还不清楚。有知道的望告知。
frms.Tag = formName.ToString();
frms.MdiParent = this;
frms.Show();
}
}
#endregion
#region 窗体关闭事件，窗体加载事件，窗体构造函数
public frmMDIMain()
{
InitializeComponent();
ds.ReadXml(System.AppDomain.CurrentDomain.BaseDirectory.ToString() + "MenuItems.xml");
for (int i = 0; i < UserInfo.lstModule.Count; i++)
{
strRoleFilter += (strRoleFilter == "" ? UserInfo.lstModule[i].ToString() : ("," + UserInfo.lstModule[i].ToString()));
}
}
private void frmMDIMain_Load(object sender, EventArgs e)
{
CreateToolbar();
CreateMenu();
}
private void ExitSysMenu_Click(object sender, EventArgs e)
{
this.Close();
}
private void ReLogin_Click(object sender, EventArgs e)
{
Process process = new Process();
process.StartInfo.FileName = System.AppDomain.CurrentDomain.BaseDirectory.ToString()+"QueryMachine.exe";
process.Start();
Application.Exit();
bool flag = false;
Mutex mutex = new Mutex(true, "QueryMachine.BackManager.frmLogin", out flag);
if (flag)
{
frmLogin Login = new frmLogin();
if (Login.ShowDialog() == DialogResult.OK)
{
Application.Run(new frmMDIMain());
}
}
else
{
MessageBox.Show(resourceAlreadyRunning,resourceSystemTip, MessageBoxButtons.OK, MessageBoxIcon.Information);
Application.Exit();
}
}
#endregion
private void frmMDIMain_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason != CloseReason.ApplicationExitCall)
{
DialogResult re = MessageBox.Show(resourceClose,resourceCloseTip, MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (re == DialogResult.Yes)
{
e.Cancel = false;
Application.Exit();
}
else
{
e.Cancel = true;
}
}
}
}
}