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Asked: 2026-05-16T20:56:11+00:00

In all of the examples of DataGridComboBoxColumn ItemSource comming from the Resources. Couldn’t it

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In all of the examples of DataGridComboBoxColumn ItemSource comming from the Resources.
Couldn’t it be binding directly to a list in the CodeBehind ?

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  1. Editorial Team

    It depends what you mean with binding directly to a list in the CodeBehind.

    You can declare the column with…

    <DataGridComboBoxColumn x:Name="m_column" ../>

    and then in code-behind set the ItemsSource…

    m_column.ItemsSource=yourItemsSource

    However you can not directly use the binding in XAML, something like:

    <DataGridComboBoxColumn ItemsSource="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=YourElement}}"/>

    because DataGridComboBoxColumn is not a part of the visual tree.

    There are workarounds for this. The most simple is using a DataGridTemplateColumn and placing the ComboBoxes directly in the edit-DataTemplate. If you use a ViewModel, you can provide the data through it. Otherwise look here and here for workarounds.

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