This is driving me crazy. I have a DataGrid which has a DataGridComboBoxColumn which I want the user to be able to use to select from. This is the basic outline of my grid.
<DataGrid ItemsSource="{Binding GoalList}" DockPanel.Dock="Bottom" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridComboBoxColumn ItemsSource="{Binding LifeAreaList}" Header="Life Area"/>
<DataGrid.Columns>
</DataGrid>
The DataGrid is bound to a collection of objects of type Goal. Each Goal has a property of type LifeArea. Each LifeArea has the properties LifeAreaId and Name.
The data context contains an observable collection of Goals: GoalList and a list of Life Areas: LifeAreaList. I want the user to be able to select a different life area for a goal. Also the name of the life area needs to be the displayed value.
EDIT
The solution is that the ItemsSource for the DataGridComboBoxColumn has to be set as a static resource. Another option is to set the ItemsSource through code.
In the end I have:
<DataGridComboBoxColumn x:Name="_lifeAreaComboBoxColumn" SelectedItemBinding="{Binding LifeArea}" DisplayMemberPath="Name" Header="Life Area">
In the code behind I set the ItemsSource:
_lifeAreaComboBoxColumn.ItemsSource = LifeAreaDAL.GetLifeAreas();
When I get a chance I'll convert this to a StaticResource.