Retrieving Child Contexts

The following example demonstrates how to retrieve the child contexts of the master data items and collapse any expanded details using the CollapseDetail method.

XAML	Copy Code
<Grid> <Grid.Resources> <xcdg:DataGridCollectionViewSource x:Key="cvs_employees" Source="{Binding Source={x:Static Application.Current}, Path=Employees}"/> </Grid.Resources> <DockPanel> <Button Content="Collapse All Details" Click="Button_Click" DockPanel.Dock="Top"/> <xcdg:DataGridControl x:Name="EmployeesGrid" ItemsSource="{Binding Source={StaticResource cvs_employees}}" ItemsSourceName="Order Information" AutoCreateDetailConfigurations="True"/> </DockPanel> </Grid>

XAML

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<Grid>
  <Grid.Resources>
     <xcdg:DataGridCollectionViewSource x:Key="cvs_employees"
                                        Source="{Binding Source={x:Static Application.Current},
                                                         Path=Employees}"/>
 
  </Grid.Resources>
 
  <DockPanel>
     <Button Content="Collapse All Details"
             Click="Button_Click"
             DockPanel.Dock="Top"/>
     <xcdg:DataGridControl x:Name="EmployeesGrid"
                           ItemsSource="{Binding Source={StaticResource cvs_employees}}"
                           ItemsSourceName="Order Information"
                           AutoCreateDetailConfigurations="True"/>
  </DockPanel>
</Grid>

The next example provides the implementation of the button's Click event.

VB.NET	Copy Code
Private Sub Button_Click( ByVal sender As Object, ByVal e As RoutedEventArgs ) Dim childContexts As New List( Of DataGridContext)( Me.EmployeesGrid.GetChildContexts() ) Dim context As DataGridContext For Each context In childContexts context.ParentDataGridContext.CollapseDetails( context.ParentItem ) Next context End Sub

VB.NET

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Private Sub Button_Click( ByVal sender As Object, ByVal e As RoutedEventArgs )
  Dim childContexts As New List( Of DataGridContext)( Me.EmployeesGrid.GetChildContexts() )
  Dim context As DataGridContext
  For Each context In childContexts
    context.ParentDataGridContext.CollapseDetails( context.ParentItem )
  Next context
End Sub

C#	Copy Code
private void Button_Click( object sender, RoutedEventArgs e ) { List<DataGridContext> childContexts = new List<DataGridContext>( this.EmployeesGrid.GetChildContexts() ); foreach( DataGridContext context in childContexts ) { context.ParentDataGridContext.CollapseDetails( context.ParentItem ); } }

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private void Button_Click( object sender, RoutedEventArgs e )
{
 List<DataGridContext> childContexts = new List<DataGridContext>( this.EmployeesGrid.GetChildContexts() );
 foreach( DataGridContext context in childContexts )
 {
   context.ParentDataGridContext.CollapseDetails( context.ParentItem );
 }     
}