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InputBinding.Command Property

Gets or sets the ICommand associated with this input binding.

Namespace:  System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[LocalizabilityAttribute(LocalizationCategory.NeverLocalize)]
[TypeConverterAttribute("System.Windows.Input.CommandConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
public ICommand Command { get; set; }
<inputBindingDerivedClass>
  <inputBindingDerivedClass.Command>
    <iCommandImplementation/>
  </inputBindingDerivedClass.Command>
</inputBindingDerivedClass>
<inputBindingDerivedClass Command="ICommand"/>

XAML Values

inputBindingDerivedClass

A derived class of InputBinding that supports object element syntax, such as KeyBinding or MouseBinding. See Remarks.

iCommandImplementation

An object implementation of ICommand that supports object element syntax (has a public default constructor).

Property Value

Type: System.Windows.Input.ICommand
The associated command.

Implements

ICommandSource.Command

ExceptionCondition
ArgumentNullException

The Command value is null.

The InputBinding class does not support XAML usage because it does not expose a public default constructor (it has a default constructor, but it is protected). However, derived classes can expose a public constructor and therefore, can use properties that are inherited from InputBinding. Two existing InputBinding derived classes that can be instantiated in XAML and can set properties with XAML usages are KeyBinding and MouseBinding.

ICommand references a type converter that enables certain preexisting ICommand implementations to specify values in the form of a string. This type conversion behavior sets the attribute value form of this property. You can also bind the Command, CommandParameter, and CommandTarget properties to an ICommand that is defined on an object. This enables you to define a custom command and associate it with user input. For more information, see the second example in InputBinding.

The following example shows how to use a KeyBinding to bind a KeyGesture to the ApplicationCommands.Open command. When the key gesture is performed, the Open command is invoked.


<Window.InputBindings>
  <KeyBinding Key="B"
              Modifiers="Control" 
              Command="ApplicationCommands.Open" />
</Window.InputBindings>



KeyGesture OpenKeyGesture = new KeyGesture(
    Key.B,
    ModifierKeys.Control);

KeyBinding OpenCmdKeybinding = new KeyBinding(
    ApplicationCommands.Open,
    OpenKeyGesture);

this.InputBindings.Add(OpenCmdKeybinding);


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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