CODEWITHSUNDEEP
c#wpfdatagridcombobox
perplexedDev
perplexedDev

Reputation: 835

Get the combobox from data template in WPF DataGrid

I have a WPF Datagrid, with a datatemplate column for combobox

<DataGrid Name="grdTest"  ItemsSource="{Binding Path=TestsList,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}">
<DataGrid.Columns>
   <DataGridTemplateColumn Width="120">
        <DataGridTemplateColumn.Header >
            <TextBlock Text="Test Name" ToolTip="Test Name" Width="109"/>
        </DataGridTemplateColumn.Header>
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ComboBox  Name="cbxTest" 
        SelectedValue="{Binding TestID,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
        DisplayMemberPath="Test" SelectedValuePath="TestID" SelectionChanged="cbxTest_SelectionChanged_1"
        ItemsSource ="{Binding Path=TestList}">
                </ComboBox>
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>

I'm trying to get the combobox element in the CellEditEnding event of the datagrid as below:

 FrameworkElement elmtTest = grdTest.Columns[7].GetCellContent(e.Row);
 ContentPresenter myContentPresenter = FindVisualChild<ContentPresenter>(elmtTest);
 DataTemplate myDataTemplate = myContentPresenter.ContentTemplate;
 ComboBox myComboBox = (ComboBox)myDataTemplate.FindName("cbxTest", myContentPresenter);

elmtTest is of type System.Windows.Controls.ContentPresenter. But the content template gives null. How can I get the combobox element of the datagrid column?

Upvotes: 1

Views: 3143

Answers (1)

perplexedDev
perplexedDev

Reputation: 835

I got it to work. It was a dumb mistake from my end. I had to pass combobox to FindVisualChild.

FrameworkElement elmtTest = grdTest.Columns[7].GetCellContent(e.Row);
ComboBox myComboBox = FindVisualChild<ComboBox>(elmtTest);

Upvotes: 1

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