Материал из .Net Framework эксперт
Disable ViewState for a certain control
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void btnAdd_Click(object sender, EventArgs e)
{
Label1.Text = "a";
Label2.Text = "b";
}
</script>
<html>
<head id="Head1" runat="server">
<title>Disable View State</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Label 1:
<asp:Label
id="Label1"
EnableViewState="false"
Text="0"
Runat="server" />
<br />
Label 2:
<asp:Label
id="Label2"
Text="0"
Runat="server" />
<br /><br />
<asp:Button
id="btnAdd"
Text="Add"
OnClick="btnAdd_Click"
Runat="server" />
</div>
</form>
</body>
</html>