Double click required to drop down ComboBox in a WPF DataGrid
Just a quick post… I had this problem in .NET 4.0 WPF DataGrid where the user had to double-click (select the cell then interact with the control) a combobox (drop down list) within a DataGrid to view the contents of it. After doing some research, I found posts about how this affects checkboxes in datagridcells. In my case, I have a DataGridTemplateColumn that has a ComboBox in it. On that Combobox, I set the following:
<ComboBox IsDropDownOpen="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGridCell}}, Path=IsEditing}" SelectedValue="{Binding Mode=TwoWay, Path=SourceFieldName}"...
And all is well… single-click to drop it down.
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