Материал из .Net Framework эксперт
Add event handler to button
<%@ page language="C#" %>
<script runat="server">
void Page_Load (object sender, System.EventArgs e) {
EventHandler handler = delegate(object dlgSender, EventArgs dlgE) {
Label1.Text = "Yeah, you clicked the button!";
};
this.Button1.Click += handler;
this.Button2.Click += handler;
}
</script>
<html>
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form runat="server">
<asp:button id="Button1" runat="server" text="Button" />
<asp:button id="Button2" runat="server" text="Button" />
<br />
<br />
<asp:label id="Label1" runat="server">click the button!</asp:label>
</form>
</body>
</html>
