It works just fine for me... what are you expecting? And what version of
.NET are you using?

Load happens as the form is preparing to display (i.e. during ShowDialog,
not during the constructor); this throws your exception, which is shown via
the MessageBox...?

Of course, since your code doesn't compile "as is" (the missing "void"), I
wonder if the real problem has been left in the /real/ code, and not posted
in the sample?

Marc

Messagebox isn't shown with OnLoad but it
works fine with OnShown. Its a problem for me because
i used to do some actions in OnLoad and if some of that
actions go wrong i have no any exception message any more.

Vs.Net 2008 NetFramework 3.5

Here is a code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
   static class Program
   {
       /// <summary>
       /// The main entry point for the application.
       /// </summary>
       [STAThread]
       static void Main()
       {
           Application.EnableVisualStyles();
           Application.SetCompatibleTextRenderingDefault(false);

           try
           {
               Form1 f = new Form1();
               Application.Run(f);
           }
           catch (Exception c)
           {
               MessageBox.Show(c.Message);
           }
       }
   }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
   public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }
       protected override void OnLoad(EventArgs e)
       {
           base.OnLoad(e);

           throw new Exception("sjhsjshsj");
       }

       protected override void OnShown(EventArgs e)
       {
           base.OnShown(e);

           //throw new Exception("sjhsjshsj");
       }
   }
}

Hi,

Are you saying there is no error at all?

Do you get the form displayed?

B.T.W

On many form on my application  i must do
some actions on startup. F.e. i have to fill
a list of clients or  a products. I used to put that
code in OnLoad of the form mainly. Where do you do
such actions mostly?