📄 button.aspx
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<html>
<head>
<script language="C#" runat="server">
void CommandBtn_Click(Object sender, CommandEventArgs e) {
//参数e是CommandEventArgs类型，表明按钮是Command类型
//读出CommandArgument信息，并赋给Label控件
Label1.Text=(String)e.CommandArgument;
}
</script>
</head>
<body>
请选择您要购买的笔记本：<p>
<form runat=server>
<asp:Button id="Button1"
Text="Dell"
onmouseover="this.style.backgroundColor='yellow'"
onmouseout="this.style.backgroundColor='buttonface'"
CommandName="dell"
CommandArgument="dell"
onCommand="CommandBtn_Click"
runat="server"/>
<asp:Button id="Button2"
Text="IBM"
onmouseover="this.style.backgroundColor='lightgreen'"
onmouseout="this.style.backgroundColor='buttonface'"
CommandName="IBM"
CommandArgument="IBM"
onCommand="CommandBtn_Click"
runat="server"/>
<p>
您选择了：<asp:Label id=Label1 runat=server />
</form>
</body>
</html>
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