I have seen many examples of creating a WPF Toolkit DataGrid in XAML and it is possible to write certain tags and there will be some columns, rows, etc depending on what you wrote.
Lets say I have an empty (it has no columns, no rows, nothing) WPF Toolkit DataGrid that has been created in XAML how do I add columns in C# programmatically (not in XAML)?
Thank you for any help!