Hello guru-guys!
I am a new to Microsoft Blend 4 and trying to use the data binding option.
The case is to hide a button until the required checkbox is checked.
My steps:
0) Making my button collapsed;
1) Entering Data Binding of the button;
2) Choosing Element Property ==> Choosing required checkbox ==> choose IsChecked: (Nullable<Boolean)>
3) Applying the converter VisibilityToBoolConverter ;
4) OK
And the error appears "Specified Cast not valid" in description to XAML
Please help! What I'm doing wrong?
