[Mono-winforms-list] object reference not set to an instance of an object

[Jonathan Pobst]

Most likely it is ActiveForm.Controls.

Check before this code with:

if (ActiveForm == null)
   Console.WriteLine ("activeform null");


Jonathan


On 10/29/2010 4:31 PM, luisrl wrote:
>
> I'm getting the next exception:
>
> object reference not set to an instance of an object
>
> In the next code:
>
> foreach (Control ctl in ActiveForm.Controls)
> {
>        if (ctl.GetType() == typeof(TextBox))
>     {
>        ctl.Text = string.Empty;
>     }
> }
>
> This is happening in Ubuntu 10.04 + Mono 2.8, in Windows Server 2008 + Mono
> 2.8 this is working fine.
>
> Since in Ubuntu it doesn't tell me line where it's happening, I'm not sure
> what's the problem.
>
> Any ideas?
>