set focus on a textfield on application startup

Hi,

I want to set the focus on my textfield when the application starts, but i
don't know how to do this.

I tried:
txtIdentifier.Focus(); in the constructor of the codebehind of the xaml
window code, but it seems that the textfield is created after the calling of
the constructor.
I can't seem to find any properties for the xaml (xml) code to do this.

Does anybody know?

Thanks.

Bart van der Heijden wrote:

> I want to set the focus on my textfield when the application starts,
> but i don't know how to do this.
>
> I tried:
> txtIdentifier.Focus(); in the constructor of the codebehind of the
> xaml
> window code, but it seems that the textfield is created after the
> calling of
> the constructor.
> I can't seem to find any properties for the xaml (xml) code to do
> this.
> Does anybody know?

You cannot access controls in the constructor because they have not been
initialized yet. You must wait until the Loaded event of the Window has fired.
So if you hook up to the Loaded event of the Window and do the Focus() call
in the handler, you should be all set.

HTH,
Drew

___________________________________
Drew Marsh
Chief Software Architect
Mimeo.com, Inc. - http://www.mimeo.com
Microsoft C# / WPF MVP
Weblog - http://blog.hackedbrain.com/