@{
var totalMessage = "";
if(IsPost)
{
var num1 = Request["text1"];
var num2 = Request["text2"];
var total = num1.AsInt() + num2.AsInt();
totalMessage = "Total = " + total;
}
}
<!DOCTYPE html>
<html>
<body style="background-color: beige; font-family: Verdana, Arial;">
<form action="" method="post">
<p><label for="text1">First Number:</label><br>
<input type="text" name="text1"></p>
<p><label for="text2">Second Number:</label><br>
<input type="text" name="text2"></p>
<p><input type="submit" value=" Add "></p>
</form>
<p>@totalMessage</p>
</body>
</html>