DataTemplate Class

Reference

Definition

Namespace:: System.Windows

Assembly:: PresentationFramework.dll

Important

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Describes the visual structure of a data object.

public ref class DataTemplate : System::Windows::FrameworkTemplate

[System.Windows.Markup.DictionaryKeyProperty("DataTemplateKey")]
public class DataTemplate : System.Windows.FrameworkTemplate

[<System.Windows.Markup.DictionaryKeyProperty("DataTemplateKey")>]
type DataTemplate = class
    inherit FrameworkTemplate

Public Class DataTemplate
Inherits FrameworkTemplate

Inheritance: Object

DispatcherObject

FrameworkTemplate
DataTemplate

Derived: System.Windows.Controls.ItemContainerTemplate

System.Windows.HierarchicalDataTemplate

Attributes: DictionaryKeyPropertyAttribute

Examples

The following example shows how to create a DataTemplate inline. The DataTemplate specifies that each data item appears as three TextBlock elements within a StackPanel. In this example, the data object is a class called Task. Note that each TextBlock element in this template is bound to a property of the Task class.

<ListBox Width="400" Margin="10"
         ItemsSource="{Binding Source={StaticResource myTodoList}}">
   <ListBox.ItemTemplate>
     <DataTemplate>
       <StackPanel>
         <TextBlock Text="{Binding Path=TaskName}" />
         <TextBlock Text="{Binding Path=Description}"/>
         <TextBlock Text="{Binding Path=Priority}"/>
       </StackPanel>
     </DataTemplate>
   </ListBox.ItemTemplate>
 </ListBox>

It is more common to define a DataTemplate in the resources section so it can be a reusable object, as in the following example:

<Window.Resources>

<DataTemplate x:Key="myTaskTemplate">
  <StackPanel>
    <TextBlock Text="{Binding Path=TaskName}" />
    <TextBlock Text="{Binding Path=Description}"/>
    <TextBlock Text="{Binding Path=Priority}"/>
  </StackPanel>
</DataTemplate>

</Window.Resources>

Now you can use myTaskTemplate as a resource, as in the following example:

<ListBox Width="400" Margin="10"
         ItemsSource="{Binding Source={StaticResource myTodoList}}"
         ItemTemplate="{StaticResource myTaskTemplate}"/>

For the complete sample, see Introduction to Data Templating Sample.

Remarks

You use a DataTemplate to specify the visualization of your data objects. DataTemplate objects are particularly useful when you are binding an ItemsControl such as a ListBox to an entire collection. Without specific instructions, a ListBox displays the string representation of the objects in a collection. In that case, you can use a DataTemplate to define the appearance of your data objects. The content of your DataTemplate becomes the visual structure of your data objects.

For an in-depth discussion, see Data Templating Overview.

Constructors

DataTemplate()	Initializes a new instance of the DataTemplate class.
DataTemplate(Object)	Initializes a new instance of the DataTemplate class with the specified DataType property.

Properties

DataTemplateKey	Gets the default key of the DataTemplate.
DataType	Gets or sets the type for which this DataTemplate is intended.
Dispatcher	Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject)
HasContent	Gets a value that indicates whether this template has optimized content. (Inherited from FrameworkTemplate)
IsSealed	Gets a value that indicates whether this object is in an immutable state so it cannot be changed. (Inherited from FrameworkTemplate)
Resources	Gets or sets the collection of resources that can be used within the scope of this template. (Inherited from FrameworkTemplate)
Template	Gets or sets a reference to the object that records or plays the XAML nodes for the template when the template is defined or applied by a writer. (Inherited from FrameworkTemplate)
Triggers	Gets a collection of triggers that apply property values or perform actions based on one or more conditions.
VisualTree	Gets or sets the root node of the template. (Inherited from FrameworkTemplate)

Methods

CheckAccess()	Determines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
FindName(String, FrameworkElement)	Finds the element associated with the specified name defined within this template. (Inherited from FrameworkTemplate)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
LoadContent()	Loads the content of the template as an instance of an object and returns the root element of the content. (Inherited from FrameworkTemplate)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
RegisterName(String, Object)	Registers a new name/object pair into the current name scope. (Inherited from FrameworkTemplate)
Seal()	Locks the template so it cannot be changed. (Inherited from FrameworkTemplate)
ShouldSerializeResources(XamlDesignerSerializationManager)	Returns a value that indicates whether serialization processes should serialize the value of the Resources property on instances of this class. (Inherited from FrameworkTemplate)
ShouldSerializeVisualTree()	Returns a value that indicates whether serialization processes should serialize the value of the VisualTree property on instances of this class. (Inherited from FrameworkTemplate)
ToString()	Returns a string that represents the current object. (Inherited from Object)
UnregisterName(String)	Removes a name/object mapping from the XAML namescope. (Inherited from FrameworkTemplate)
ValidateTemplatedParent(FrameworkElement)	Checks the templated parent against a set of rules.
VerifyAccess()	Enforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)

Explicit Interface Implementations

INameScope.FindName(String)	Returns an object that has the provided identifying name. (Inherited from FrameworkTemplate)
IQueryAmbient.IsAmbientPropertyAvailable(String)	Queries whether a specified ambient property is available in the current scope. (Inherited from FrameworkTemplate)

Applies to

Megosztás a következőn keresztül: