I have a grid with SAVE button. Then I have a dockmanager which has 2 tabgrouppanes. The first tabgrouppane has a content pane which has a title textbox and few other fields.

Binding for title seems to happen only when we TAB out of the text box. Hitting SAVE without leaving the textbox does not do the binding. How do I get the textbox to receive a "lost focus" when I click on the SAVE button. Attaching sample code.

Thanks.

<Grid>
 <Grid x:Name="Grid_MenuBar">
                                    <Button
     x:Name="Save"
     Grid.Column="1"
     Grid.Row="0"
     Margin="5"
 </Grid>

 <igDock:XamDockManager Grid.Row="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
 <igDock:XamDockManager.Panes>
                                    <igDock:SplitPane igDock:XamDockManager.InitialLocation="DockedTop" SplitterOrientation="Horizontal">
                                        <igDock:TabGroupPane>
                                            <igDock:ContentPane Header="Primary">
                                                <Grid x:Name="Song">                                                  
                                                    <TextBlock x:Name="SongTitle_txt"
         Text="Title"
         Grid.Row="1"
         Grid.Column="2"
         Margin="0,0,5,0" />
                                                   
                                                    <TextBox
        x:Name="SongTitle_box"
        BorderThickness="0.5,0.5,0.5,0.5"
        Grid.Row="1"
        Grid.Column="3"       
        Text="{Binding Path=Title, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"/>
         </igDock:ContentPane>
     </igDock:TabGroupPane>
    </igDock:SplitPane>
 </igDock:XamDockManager.Panes>
</Grid>