Windows Content did not show up when we use Window.ShowDialog()...

Hi,

I use WPF in .Net 4.0, When I show a modal dialog using Window.ShowDialog(), sometimes, the content in the window is empty, when you move your mouse over the window, the controls on the window start to show up. You close the window and open it again, the window will be normal again.

It does not happen very often, but it does happen.

Can someone tell me why and How to fix it? We are using MVVM and DataBinding for the controls and Data Model.

Thanks

Gordon

Gordon Senior Software Developper