基本的Web控件用法二
ListBox控件
页面布局：
<div>
<h1>ListBox控件</h1>
学生列表：
<br/>
<asp:ListBox ID="ListBox1" runat="server" Width="100" Height="100" OnSelectedIndexChanged="ListBox1_SelectedIndexChanged“AutoPostBack="true">
</asp:ListBox>
<br />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<br/>
</div>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//生成数据
DataSet ds = new DataSet();
ds.Tables.Add("stu");
ds.Tables["stu"].Columns.Add("stuNo", typeof(int));
ds.Tables["stu"].Columns.Add("stuName", typeof(string));
ds.Tables["stu"].Columns.Add("stuScore", typeof(int));
ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });
//绑定到ListBox控件
this.ListBox1.DataSource = ds.Tables["stu"];
this.ListBox1.DataValueField = "stuNo";
this.ListBox1.DataTextField = "stuName";
this.ListBox1.DataBind();
}
}
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Label1.Text = "你选择的学生是：" + this.ListBox1.SelectedItem.Text.ToString();
}
DropDownList控件
页面布局：
<div>
<h1>DropDownList控件</h1>
学生列表：
<br/>
<asp:DropDownList ID="DropDownList1" Font-Size="Large" runat="server" AutoPostBack="true" Width="146px"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>
<br/>
<asp:Label ID="Label1" runat="server"></asp:Label>
<hr/>
<hr/>
</div>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//生成数据
DataSet ds = new DataSet();
ds.Tables.Add("stu");
ds.Tables["stu"].Columns.Add("stuNo", typeof(int));
ds.Tables["stu"].Columns.Add("stuName", typeof(string));
ds.Tables["stu"].Columns.Add("stuScore", typeof(int));
ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });
//绑定到ListBox控件
this.DropDownList1.DataSource = ds.Tables["stu"];
this.DropDownList1.DataValueField = "stuNo";
this.DropDownList1.DataTextField = "stuName";
this.DropDownList1.DataBind();
}
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Label1.Text = "你选择的学生是：" + this.DropDownList1.SelectedItem.Text.ToString();
}
CheckBoxList控件
页面布局：
<div>
<h1>CheckBoxList控件</h1>
<asp:CheckBoxList ID="CheckBoxList1" runat="server" OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged"
AutoPostBack="true" Width="180px">
</asp:CheckBoxList>
<br/>
<asp:Label ID="Label1" runat="server"></asp:Label>
<hr/>
<hr/>
</div>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//生成数据
DataSet ds = new DataSet();
ds.Tables.Add("stu");
ds.Tables["stu"].Columns.Add("stuNo", typeof(int));
ds.Tables["stu"].Columns.Add("stuName", typeof(string));
ds.Tables["stu"].Columns.Add("stuScore", typeof(int));
ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });
//绑定到ListBox控件
this.CheckBoxList1.DataSource = ds.Tables["stu"];
this.CheckBoxList1.DataValueField = "stuNo";
this.CheckBoxList1.DataTextField = "stuName";
this.CheckBoxList1.DataBind();
}
}
RadioButtonList控件
页面布局：
<div>
<h1>RadioButtonList控件</h1>
<asp:RadioButtonList ID="RadioButtonList1" runat="server" Width="180px" AutoPostBack="true">
</asp:RadioButtonList>
<hr/>
<hr/
</div>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//生成数据
DataSet ds = new DataSet();
ds.Tables.Add("stu");
ds.Tables["stu"].Columns.Add("stuNo", typeof(int));
ds.Tables["stu"].Columns.Add("stuName", typeof(string));
ds.Tables["stu"].Columns.Add("stuScore", typeof(int));
ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });
//绑定到ListBox控件
this.RadioButtonList1.DataSource = ds.Tables["stu"];
this.RadioButtonList1.DataValueField = "stuNo";
this.RadioButtonList1.DataTextField = "stuName";
this.RadioButtonList1.DataBind();
}
}
BulletedList控件
页面布局：
<div>
<h1>BulletedList控件</h1>
<asp:BulletedList ID="BulletedList1" runat="server" BulletStyle="Square">
</asp:BulletedList>
<hr/>
<hr/>
</div>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//生成数据
DataSet ds = new DataSet();
ds.Tables.Add("stu");
ds.Tables["stu"].Columns.Add("stuNo", typeof(int));
ds.Tables["stu"].Columns.Add("stuName", typeof(string));
ds.Tables["stu"].Columns.Add("stuScore", typeof(int));
ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });
ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });
//绑定到ListBox控件
this.BulletedList1.DataSource = ds.Tables["stu"];
this.BulletedList1.DataValueField = "stuNo";
this.BulletedList1.DataTextField = "stuName";
this.BulletedList1.DataBind();
}
}
Table控件
页面布局：
<div>
<h1>Table控件</h1>
动态操作表控件<br/>
行数：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
列数：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<br/>
<asp:Button ID="Button1" runat="server" Text="动态生成" OnClick="Button1_Click" />
<br/>
<asp:Table ID="Table1" runat="server" Caption="动态操作表控件" CellPadding="1" CellSpacing="1" GridLines="Both"> </asp:Table>
<hr/>
<hr/>
</div>
后台代码：
protected void Button1_Click(object sender, EventArgs e)
{
int rowNum = 0; //定义行数
int rowCount = 0; //定义当前行数
int cellNum = 0; //定义列数
int cellCount = 0; //定义当前列数
//获取用户输入的行数和列数
try
{
rowNum = int.Parse(TextBox1.Text);
cellNum = int.Parse(TextBox2.Text);
}
catch
{
rowCount = 1;
cellCount = 1;
}
for (rowCount = 1; rowCount <= rowNum; rowCount++)
{
//为Table1表添加一行
TableRow tRow = new TableRow();
Table1.Rows.Add(tRow);
for (cellCount = 1; cellCount <= cellNum; cellCount++)
{
//创建单元格并添加到表中
TableCell tCell = new TableCell();
tRow.Cells.Add(tCell);
//添加一个用来包含文本的Literal类，作为控件添加到单元格中
tCell.Controls.Add(new LiteralControl("当前位置："));
//创建一个Hyperlink控件并把它添加到单元格中
System.Web.UI.WebControls.HyperLink h = new HyperLink();
h.Text = rowCount + "：" + cellCount;
h.NavigateUrl = "http://www.microsoft.com/net";
tCell.Controls.Add(h);
}
}
}
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