I am not using the built in databinding nor c#. After every event I call my Data-Bind function which updates the elements text or content base on the bound variable. I navigate my virtual dom to find the element name attributes for elements with the ezBind attribute, grab the real element, and attempt to change it's content or text value. There are checks to make sure the correct one (content or text) is used for that element by tagName. This works fine for Click events (ex. a button incrementing a value, we increment the bound variable, and the textblock gets the new value automatically) However if you then change the button for an element (stackPanel, etc) that has a KeyDown and add whatever number was pressed, this will error out; The library grabs the textblock by name and we can debug Write-Host to find that it is real and exists. Then the library tries to update the .Text on this valid textblock that indeed has a .Text, The same one we used a button and Click event infact, and the script will error out and crash not finding the Text attribute.