"Maria Paz" wrote:

> I have a windows application with c#.
> This application have 6 forms.
>
> The line code in my program.cs is:
> [STAThread]
> static void Main()
> {
> try
> {
>
> Application.Run(new frmPrincipal());
> }
> catch(Exception ex)
> {
> throw ex;
> }
> }
>
> In my frmPrincipal, i have a menustrip.
> In this menustrip, I have 2 menus, and each menu I have 2 submenu.
> When I click in one submenu , I using this code:
> try
> {
> frmDescarga formulario = new frmDescarga();
> formulario.Show(this);
> }
> catch
> {
> return;
> }
> When I use method Show , I receive this exception:
> "Attempted to read or write protected memory"
>
> When I change this formulario.Show for ShowDialog, I recieve this exception:
> "{System.Runtime.InteropServices.SEHException: External component has thrown
> an exception.
> at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageA(MSG& msg)
> at
> System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
> dwComponentID, Int32 reason, Int32 pvLoopData)
> at
> System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
> reason, ApplicationContext context)
> at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32
> reason, ApplicationContext context)
> at System.Windows.Forms.Application.Run(Form mainForm)
> at ZKAdmin.AppStart.Main() in
> E:\Desarrollo\WindowsApplication1\WindowsApplication1\Program.cs:line 132}"
>
> I don't understand what is the problem.