changing Visibility to hosted winForms element in wpf application

Question

Hi,

I have ReportViewer winForms control for showing Microsoft Reports in my WPF application hosted over WindowsFormsIntegration. When the MouseDown event of my textBlock triggers, I would like it to fade lets say from 0 to 100 visability, like some other elements in my Window. It doesn't, so I was wondering is it the same for all hosted controls or this one specific and how can it be solved?

Regards,

Ivan

Answer 1

The WindowsFormsHost supports Transparency. But some WinForms Controls do not.

See the Supported Scenarios in Windows Presentation Foundation and Windows Forms Interoperation article on MSDN. Especially the first row in the "Behaviour" table:

Some Windows Forms controls do not support transparency. For example, the TextBox and ComboBox controls will not be transparent when hosted by WPF.