DEFAULT.ASPX FILE:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!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">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label3"
runat="server" Text="RESULT :" Width="130px"></asp:Label>
<asp:Label ID="Label1" runat="server" Width="153px"></asp:Label><br />
<br />
<asp:Label ID="Label2" runat="server" Text="Enter the limit to sum"
Width="157px"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <br />
<br />
<asp:Button ID="Button1" runat="server" Text="USE WHILE LOOP" Width="138px" /><br />
<br />
<br />
<br />
</div>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!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">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label3"
runat="server" Text="RESULT :" Width="130px"></asp:Label>
<asp:Label ID="Label1" runat="server" Width="153px"></asp:Label><br />
<br />
<asp:Label ID="Label2" runat="server" Text="Enter the limit to sum"
Width="157px"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <br />
<br />
<asp:Button ID="Button1" runat="server" Text="USE WHILE LOOP" Width="138px" /><br />
<br />
<br />
<br />
</div>
</form>
</body>
</html>
DEFAULT.ASPX.VB FILE:
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sum = 0
Dim c, i As Integer
c = CInt(TextBox1.Text)
While (i <= c)
sum = sum + i
i = i + 1
End While
Label1.Text = sum
End Sub
End Class
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