Monday, July 04, 2011

WPF 4's DataGrid - bound template columns, anybody?

I recently had occasion to use the WPF DataGrid component introduced in .NET 4. And here's something really stupid: all the built-in primitive column types (text, checkbox etc.) derive from a DataGridBoundColumn base type. This allows you to specify a binding for the cell content - very logical and WPFy.

The DataGridTemplateColumn is the sole exception. I reflected the code and noticed that they're using a ContentControl internally to present the cell - so how hard would it be to simply apply the binding to the Content property? I'll tell you how hard - it's one line of code.

It's seems like they've done more work and added an extra base class simply to make the template column less useful.

Stupid.

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