❔ Can't get root XAML element of UserControl for binding

I have a user control that declares a property that I need to bind properties of its children to. I was trying

"{Binding Property, ElementName=window}"

"{Binding Property, ElementName=window}"

for my binding expression. But that seems to fail. It seems user controls don't have a window element. I tried

{Binding Property, RelativeSource={RelativeSource AncestorType=UserControl, AncestorLevel=20}}

{Binding Property, RelativeSource={RelativeSource AncestorType=UserControl, AncestorLevel=20}}

as well, but that doesn't work either. I don't know why. Can someone help? Technically,

UserControl

UserControl

isn't my immediate base class. So I tried the intermediate base class as well, but that didn't work. I also tried the derived class to no avail.

C#•3y ago•

5 replies

I have a user control that declares a property that I need to bind properties of its children to. I was trying

"{Binding Property, ElementName=window}"

"{Binding Property, ElementName=window}"

for my binding expression. But that seems to fail. It seems user controls don't have a window element. I tried

{Binding Property, RelativeSource={RelativeSource AncestorType=UserControl, AncestorLevel=20}}

{Binding Property, RelativeSource={RelativeSource AncestorType=UserControl, AncestorLevel=20}}

as well, but that doesn't work either. I don't know why. Can someone help? Technically,

UserControl

UserControl

isn't my immediate base class. So I tried the intermediate base class as well, but that didn't work. I also tried the derived class to no avail.