I have no clue why does my code not work. It does compile and said built succeeded, but doesn't work as expected

it loads though...
PHP Code:
<!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 runat="server">
<script language="C#" runat="server">
void buttonOnClick(object Source, EventArgs ea)
{
result.Text = "MY NAME IS " + name.Text;
}
</script>
<title>My Test Page</title>
</head>
<body>
<form runat="server">
<div>
<asp:TextBox ID="name" runat="server"></asp:TextBox>
<asp:Button ID="submitBtn" text="shout" OnClick="buttonOnClick" runat="server" />
<p>
<asp:Label ID="result" runat="server"></asp:Label>
</p>
</div>
</form>
</body>
</html>
it loads up but when I submit my input, it doesn't spit out the value and what I want on the label

please help if anybody can give me suggestion, hints, or something so that I can continue... sigh... **now still trying to figure out**
I think there's something wrong with my Laptop.. somehow, even I just copied and paste from the book that I read, it still doesn't show me the correct result!!!

please help....... sigh....... I'm getting crazy....

can't stand it without codes....