Question

I need to take some action (e.g. make some cells readonly based on some other cells) after data biinding is completed. In WinForm DataGridView, I used to do it in DataBindingComplete event. However, I couldn’t find such an event in WPF DataGrid. What else can I use?

Answer 1

This is what I figured out: DataContextChanged event is the right event to use. The only problem is that the datagrid is not quite ready to be consumed in my code inside this event. However, it works fine if I use Dispatcher.BeginInvoke like this:

Dispatcher.BeginInvoke(DispatcherPriority.Render, new Action(() => DoSomethingWithGrid()));

Can anybody explain why this is necessary?

Actually, when dealing with WPF DataGrid, I had to use Dispatcher in quite a few cases in order to make it work. Why?