How do I do a try catch for web form?

[joeybagadonutz]

Hi, I do this all the time for windows forms, and I put this code into the code behind for web forms and I get no errors, but it doesnt work, is there a way to do a try catch for asp.net web forms? I use vb.net code behind, thanks!

 

Try

Cmd.ExecuteNonQuery()

Catch ex As Exception

MsgBox("Error: " & ex.message)

End Try

[Robby]

What part you you talking about, th message box? you cannot display a msgbox from the server.

 

I prefer to place those types of messages in a label or a literal control.

[joeybagadonutz]

okay thanks

[sergeromero]

Hey,

 

Try the following:

 

Catch ex As Exception

Dim strErrorMessage As String

strErrorMessage = ex.Message.ToCharArray

strErrorMessage = strErrorMessage.Replace(Chr(13), "\n")

strErrorMessage = trErrorMessage.Replace(Chr(10), "\n")

strErrorMessage = trErrorMessage.Replace("'", " ")

strErrorMessage = trErrorMessage.Replace("""", " ")

 

Response.Write("<script language='JavaScript'>")

Response.Write("alert('" & trErrorMessage & "');")

Response.Write("</script>")

End Try

 

The "Replace" statements take away any carriage returns, single, and double quotes that come within the Message property of the Exception, and that might make the JavaScript code to fail.

 

Hope this helps.

[joeybagadonutz]

cool thanks very much.