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ItemsControl.ItemContainerGenerator-Eigenschaft

Gets the ItemContainerGenerator that is associated with this control.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in presentationframework.dll)
XML-Namespaces:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

[BindableAttribute(false)] 
public ItemContainerGenerator ItemContainerGenerator { get; }
/** @property */
public ItemContainerGenerator get_ItemContainerGenerator ()

public function get ItemContainerGenerator () : ItemContainerGenerator

Sie können diese Eigenschaft nicht in XAML verwenden.

Eigenschaftenwert

The ItemContainerGenerator that is associated with this control. The default value is NULL-Verweis (Nothing in Visual Basic).

An ItemContainerGenerator is responsible for generating the user interface (UI) for its host, such as an ItemsControl. It maintains the association between the items in the data view of the control and the corresponding UIElement objects.

If you need to get a specific ListBoxItem at a particular index in a ListBox you can use ItemContainerGenerator. The following example shows the ListBox and its items.

<ListBox Margin="10,0,0,5" Name="lb" VerticalAlignment="Top" Grid.Column="0" Grid.Row="2">
    <ListBoxItem>Item 0</ListBoxItem>
    <ListBoxItem>Item 1</ListBoxItem>
    <ListBoxItem>Item 2</ListBoxItem>
    <ListBoxItem>Item 3</ListBoxItem>
</ListBox>

This example shows how to retrieve the item by specifying the index of the item in the ContainerFromIndex property.

private void GetIndex0(object sender, RoutedEventArgs e)
{
  ListBoxItem lbi = (ListBoxItem)
      (lb.ItemContainerGenerator.ContainerFromIndex(0));
  Item.Content = "The contents of the item at index 0 are: " +
      (lbi.Content.ToString()) + ".";
}

Once you have retrieved the list box item you can do things such as display the contents of the item as shown in this example.

Item.Content = "The contents of the item at index 0 are: " +
    (lbi.Content.ToString()) + ".";

For the complete sample see Get ListBoxItem with Index Sample.

Microsoft .NET Framework 3.0 wird unter Windows Vista, Microsoft Windows XP SP2 und Windows Server 2003 SP1 unterstützt.

.NET Framework

Unterstützt in: 3.0
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