[Solved] Setting SelectedItem of ComboBox after ItemSource is set in GridView

[James Steward]

Hi,
I'm trying to set the SelectedItem on 3 ComboBoxs that are in a ControlTemplate in in a GridView Column. The ComboBoxes are getting bound to their ItemsSources during the ComboBoxes Loaded event. I would like to set the SelectedItem for the ComboBoxes based on values bound to the GridViewRow.

<grid:GridViewDataColumn HeaderText="">
                    <grid:GridViewColumn.CellStyle>
                        <Style TargetType="gridView:GridViewCell">
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="gridView:GridViewCell">
                                        <StackPanel Orientation="Vertical">
                                            <TextBlock>Stage:</TextBlock>
                                            <ComboBox x:Name="cbStage" SelectedItem="{Binding Stage}" Loaded="cbStage_Loaded" />
                                            <TextBlock>Advisor:</TextBlock>
                                            <!--ComboBox x:Name="cbAdvisor" /-->
                                            <TextBlock>Sponsor:</TextBlock>
                                            <!--ComboBox x:Name="cbSponsor" /-->
                                        </StackPanel>
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </grid:GridViewColumn.CellStyle>
                </grid:GridViewDataColumn>

 private void cbStage_Loaded(object sender, RoutedEventArgs e)
        {
            ComboBox cb = (ComboBox)sender;
            if (stageListData != null)
            {
                string[] source = new string[stageListData.Count + 1];
                source[0] = "No Stage";
                for (int i = 0; i < stageListData.Count; i++)
                {
                    source[i + 1] = stageListData[i].StageName;
                }
                cb.ItemsSource = source;
            }
            else
            {
                string[] source = new string[1];
                source[0] = "No Stage";
                cb.ItemsSource = source;
            }
        }

I thought I might be able to do it using the RowLoaded event but I can't seem to figure out how to access the ComboBoxes from there.
Any help would be greatly appreciated.

[James Steward]

Nevermind, I figured it out. I can take care of it all in the RowLoaded event:

<grid:GridViewDataColumn HeaderText="">
                    <grid:GridViewColumn.CellStyle>
                        <Style TargetType="gridView:GridViewCell">
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="gridView:GridViewCell">
                                        <StackPanel Orientation="Vertical">
                                            <TextBlock>Stage:</TextBlock>
                                            <ComboBox x:Name="cbStage" />
                                            <TextBlock>Advisor:</TextBlock>
                                            <TextBox Text="{Binding Advisor}" />
                                            <TextBlock>Sponsor:</TextBlock>
                                            <TextBox Text="{Binding Sponsor}" />
                                        </StackPanel>
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </grid:GridViewColumn.CellStyle>
                </grid:GridViewDataColumn>

void RadGridView1_RowLoaded(object sender, Telerik.Windows.Controls.GridView.RowLoadedEventArgs e)
        {
            GridViewRow row = e.Row as GridViewRow;
            if (row != null && row.Items.Count > 6)
            {
                GridViewCell cell = row.Items[7] as GridViewCell;
                if (cell != null)
                {
                    var comboStage = cell.ChildrenOfType<ComboBox>().Where(b => b.Name == "cbStage").FirstOrDefault();
                    ComboBox cbStage = (ComboBox)comboStage;
                    if (stageListData != null)
                    {
                        string[] source = new string[stageListData.Count + 1];
                        source[0] = "No Stage";
                        for (int i = 0; i < stageListData.Count; i++)
                        {
                            source[i + 1] = stageListData[i].StageName;
                        }
                        cbStage.ItemsSource = source;
                    }
                    else
                    {
                        string[] source = new string[1];
                        source[0] = "No Stage";
                        cbStage.ItemsSource = source;
                    }
                    var record = e.Row.Record as DataRecord;
                    IdeaListData data = (IdeaListData)record.Data;
                    string stage = data.Stage;
                    cbStage.SelectedItem = stage;
                }
            }
        }