Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

How do i ignore or subsidise an unhandled Exception(Visual studio , C#)

Posted on 2008-11-02
3
821 Views
Last Modified: 2013-12-17
I just dont want my application to spit out any errors.( I have made validation on every fields so theoritically it alerts the user if the field are not set) but after validation the programe still executes and gives me error messages saying the field is not correctly set.


Either i want to know how can we exit the flow of programme which gives me exception

or

How do i ignore or subsidise an unhandled Exception(Visual studio , C#).
Thanks guys
MAIN PROGRAM
============
public void View_Click(object sender, EventArgs e)
        {
            if (IDIR.Checked == true)
            {
                Vpara();
                IDIRD();
            }
private void IDIRD()
        {
            ciscopreface();
            sr.AppendLine("hostname " + ZNumber.Text);
}
 
If ZNumber field is empty the programme throws an exception.
 To avoid that i have used
============================================================
        private void Vpara()
        {
            foreach (Control ctrl in IParameters.Controls)
            {
                if ((ctrl.Visible == true) && (ctrl.Text == String.Empty))
                {
                    MessageBox.Show("Enter ALL the parameters correctly", "Warning");
                }
            }
        }
BUT THE PROBLEM IS THE PRGRAM CONTIUES THE FLOW AND TO  IDIRD(); AND THROWS US AN EXCEPTION.
Either i want to know how can we exit the flow of programme which gives me exception
 
or
 
How do i ignore or subsidise an unhandled Exception(Visual studio , C#).
Thanks guys

Open in new window

0
Comment
Question by:JesuSingarayar
  • 2
3 Comments
 
LVL 63

Accepted Solution

by:
Fernando Soto earned 250 total points
ID: 22861346
Hi JesuSingarayar;

I have modified your code so that IDIRD() is not executed if Vpara() found an error.

Fernando

public void View_Click(object sender, EventArgs e)
{
    if (IDIR.Checked == true)
    {
        // If the function Vpara returns true then it had an error and
        // so execut the return to exit this event handler otherwise execut
        // the function IDIRD.
        if( Vpara() ) return;
        IDIRD();
    }
    
private void IDIRD()
{
    ciscopreface();
    sr.AppendLine("hostname " + ZNumber.Text);
}
 
// Return true from this function if there is an error 
private bool Vpara()
{
    foreach (Control ctrl in IParameters.Controls)
    {
        if ((ctrl.Visible == true) && (ctrl.Text == String.Empty))
        {
            MessageBox.Show("Enter ALL the parameters correctly", "Warning");
            // Error was found so return true.
            return true;
        }
    }
    // No error was found so return false
    return false;
}

Open in new window

0
 

Author Closing Comment

by:JesuSingarayar
ID: 31512455
Thank YOU very much FernandoSoto.
0
 
LVL 63

Expert Comment

by:Fernando Soto
ID: 22861395
Not a problem, glad I was able to help.  ;=)
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question