WPF DataGrid is very slow to render

Question

I have tried using both a customized DataGrid as well as the stock one in WPF. I have tried populating them manually as well as through bindings. In both cases they are sl

Answer 1

Are you have:

• Enabled VirtualizingStackPanel.VirtualizationMode for a Grid? if not - try to set.
• Set VirtualizingStackPanel.IsVirtualizing="true" for DataGrid
• Wrapped up a Grid by a StackPanel container? If yes - try to remove.
• Wrapped up a Grid by an external ScrollViewer control? If yes - try to remove.

One more point, could you bind whole items collection at once instead of adding each item into the grid.Items collection?