On Error GoTo HandleError : On Error « Development « ASP.Net






  1. ASP.Net
  2. Development
  3. On Error

On Error GoTo HandleError

<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
    On Error GoTo HandleError
    Dim TempResult as Integer
    TempResult = txtNumber1.Text / txtNumber2.Text
    lblResult.Text = "Result: " & TempResult
    Exit Sub
    
    HandleError:
        lblError.Text = "Unable to calculate due to this error: " _
            & Err.Description
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>On Error Go To</TITLE>
</HEAD>
<BODY  TEXT="black" LINK="darkred" VLINK="darkred" ALINK="red" LEFTMARGIN="40" TOPMARGIN="60">
<form runat="server">
<Font Face="Tahoma" Size="+1">
<asp:Label
    id="lblMessage1"
    runat="Server"
    Text="Enter a Number"
/>
<BR>
<asp:TextBox
    id="txtNumber1"
    runat="Server"
/>
<BR><BR>
<asp:Label
    id="lblMessage2"
    runat="Server"
    Text="Enter another Number"
/>
<BR>
<asp:TextBox
    id="txtNumber2"
    runat="Server"
/>
<BR><BR>
<asp:Label
    id="lblResult"
    runat="Server"
    Text="Result: "
/>
<BR>
<asp:Label
    id="lblError"
    runat="Server"
/>
<BR>
<asp:Button 
    id="butOK"
    text="  Go  "
    Type="Submit"
    OnClick="SubmitBtn_Click" 
    runat="server"
/>
</Font>
</Form>
</BODY>
</HTML>








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