创建一个服务器端控件，该控件映射到 <input type=radio> HTML 元素并允许您在网页上创建单选按钮。
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<input
Type="Radio"
EnableViewState="False|True"
Id="string"
Visible="False|True"
OnDataBinding="OnDataBinding event handler"
OnDisposed="OnDisposed event handler"
OnInit="OnInit event handler"
OnLoad="OnLoad event handler"
OnPreRender="OnPreRender event handler"
OnServerChange="OnServerChange event handler"
OnUnload="OnUnload event handler"
runat="server"
/> |
备注
示例
下面的示例演示如何为 HtmlRadioButton 控件的 ServerChange 事件创建一个事件处理程序。此事件处理程序确定选择哪个单选按钮并将选定内容显示在消息中。
| Visual Basic? |  复制代码 |
|---|
<%@ Page Language="VB" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HtmlInputRadioButton Control</title>
<script runat="server">
Sub Server_Change(Source As Object, e As EventArgs)
If Radio1.Checked = True Then
Span1.InnerHtml = "Radio1 is checked"
Else
If Radio2.Checked = True Then
Span1.InnerHtml = "Radio2 is checked"
Else
If Radio3.Checked = True Then
Span1.InnerHtml = "Radio3 is checked"
End If
End If
End If
End Sub
</script>
</head>
<body>
<form id="Form1" runat="server">
<h3>HtmlInputRadioButton Sample</h3>
<input type="radio"
id="Radio1"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 1<br>
<input type="radio"
id="Radio2"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 2<br>
<input type="radio"
id="Radio3"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 3
<p>
<span id=Span1 runat="server" />
<p>
<input type=submit id="Button1"
value="Enter"
runat="server">
</form>
</body>
</html>
|
| C#? | 复制代码 |
|---|
<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HtmlInputRadioButton Control</title>
<script runat="server">
void Server_Change(object Source, EventArgs e)
{
if (Radio1.Checked == true)
Span1.InnerHtml = "Radio1 is checked";
else if (Radio2.Checked == true)
Span1.InnerHtml = "Radio2 is checked";
else if (Radio3.Checked == true)
Span1.InnerHtml = "Radio3 is checked";
}
</script>
</head>
<body>
<form id="Form1" runat="server">
<h3>HtmlInputRadioButton Sample</h3>
<input type="radio"
id="Radio1"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 1<br>
<input type="radio"
id="Radio2"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 2<br>
<input type="radio"
id="Radio3"
name="Mode"
OnServerChange="Server_Change"
runat="server"/>
Option 3
<p>
<span id=Span1 runat="server" />
<p>
<input type=submit id="Button1"
value="Enter"
runat="server">
</form>
</body>
</html>
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请参见
参考
HtmlInputRadioButtonSystem.Web.UI.HtmlControls其他资源
HTML 服务器控件
注意