Windows Client Videos

This is a very nice code, thanks.

Now, I have a small problem: I added a custom validation on the first Name field that checks if the field is empty. That works fine. But if the field is initially empty, then the Save button is enabled when the window is opened, and that is not correct. If I type some text in the Name field and then remove it, the button is disabled.

In other words, how can I trigger the validation checks on the window loading?

I just found the ValidatesOnTargetUpdated attribute (in 2008 SP1) that solves my problem.

Excelente tutorial me podrías ayudar con algo? quiero validar los datos que se introducen directamente en la intefaz del usuario como lo haces en el video pero utilizando mi modelo de datos (EDM) Entity Data Model como podría hacerlo? Muchas Gracias.