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  • Artykuł

ItemsPanelTemplate Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Specifies the panel that the ItemsPresenter creates for the layout of the items of an ItemsControl.

Inheritance Hierarchy

System.Object
  System.Windows.DependencyObject
    System.Windows.FrameworkTemplate
      System.Windows.Controls.ItemsPanelTemplate

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public NotInheritable Class ItemsPanelTemplate _
    Inherits FrameworkTemplate

public sealed class ItemsPanelTemplate : FrameworkTemplate

<ItemsPanelTemplate ...>
  templateRootElement
</ItemsPanelTemplate>

XAML Values

  • templateRootElement
    A single object element that derives from FrameworkElement.

The ItemsPanelTemplate type exposes the following members.

Constructors

  Name Description
Public methodSupported by Silverlight for Windows Phone ItemsPanelTemplate Initializes a new instance of the ItemsPanelTemplate class.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows Phone Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)

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Methods

  Name Description
Public methodSupported by Silverlight for Windows Phone CheckAccess Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows Phone Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetAnimationBaseValue Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodSupported by Silverlight for Windows Phone MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone ToString Returns a string that represents the current object. (Inherited from Object.)

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Remarks

The ItemsPanelTemplate specifies the panel that is used for the layout of items. The ItemsControl has an ItemsPanel property that is of type ItemsPanelTemplate.

Examples

The following example creates a ListBox that displays its items horizontally. The example sets the ItemsPanel to a ItemsPanelTemplate that has a StackPanel whose Orientation property is set to Horizontal.

<Grid>
  <Grid.Resources>
    <Style x:Key="horizontalListBoxStyle" TargetType="ListBox">
      <Setter Property="ItemsPanel">
        <Setter.Value>
          <ItemsPanelTemplate>
            <StackPanel Orientation="Horizontal"
              VerticalAlignment="Center"
              HorizontalAlignment="Center"/>
          </ItemsPanelTemplate>
        </Setter.Value>
      </Setter>
    </Style>

    <src:Items x:Key="items"/>
  </Grid.Resources>

  <ListBox ItemsSource="{StaticResource items}" 
           Style="{StaticResource horizontalListBoxStyle}"/>

</Grid>

The following example shows the collection of strings to which the ListBox is bound.

Public Class Items
    Inherits System.Collections.ObjectModel.ObservableCollection(Of String)

    Public Sub New()
        Add("Item 1")
        Add("Item 2")
        Add("Item 3")
        Add("Item 4")
        Add("Item 5")
    End Sub
End Class

public class Items : 
    System.Collections.ObjectModel.ObservableCollection<string>
{
    public Items()
    {
        Add("Item 1");
        Add("Item 2");
        Add("Item 3");
        Add("Item 4");
        Add("Item 5");
    }
}

The preceding example produces output that is similar to the following illustration.

ListBox with items arranged horizontally

A ListBox that positions items horizontally.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.