Cannot find governing FrameworkElement to DiscreteBooleanKeyFrame

Question

I try to bind the value of DiscreteBooleanKeyFrame to HasError of textbox:

<DiscreteBooleanKeyFrame KeyTime="0" Value="{Binding ElementName=TextBox1,Path=Validation.HasError}"/>

It does not work.

I checked the output and saw the following error:

Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=Validation.HasError; DataItem=null; target element is 'DiscreteBooleanKeyFrame' (HashCode=xxxxx); target property is 'Value' (type 'Boolean')

Does anyone have any idea why this error occurs?

Answer 1

Happens because key frames are abstract object that are not in any tree.

Also you cannot bind animations anyway if i remember correctly.