Class DelegateCommand

Represents the command to be executed on SfPdfViewerControl.

Inheritance
System.Object
DelegateCommand
Implements
System.Windows.Input.ICommand
Namespace: Syncfusion.Windows.PdfViewer
Assembly: Syncfusion.SfPdfViewer.UWP.dll
Syntax
public class DelegateCommand : Object, ICommand

Constructors

DelegateCommand(Action<Object>, Func<Object, Boolean>)

Initializes a new instance of the DelegateCommand class.

Declaration
public DelegateCommand(Action<object> executeAction, Func<object, bool> canExecute)
Parameters
Type Name Description
System.Action<System.Object> executeAction

The execute action.
System.Func<System.Object, System.Boolean> canExecute

The can execute.

Methods

CanExecute(Object)

Defines the method that determines whether the command can execute in its current state.

Declaration
public bool CanExecute(object parameter)
Parameters
Type Name Description
System.Object parameter

Data used by the command. If the command does not require data to be passed, this object can be set to null.
Returns
Type Description
System.Boolean

true if this command can be executed; otherwise, false.

Execute(Object)

Defines the method to be called when the command is invoked.

Declaration
public void Execute(object parameter)
Parameters
Type Name Description
System.Object parameter

Data used by the command. If the command does not require data to be passed, this object can be set to null.

Events

CanExecuteChanged

Occurs when changes occur that affect whether the command should execute.

Declaration
public event EventHandler CanExecuteChanged
Event Type
Type Description
System.EventHandler

Implements

System.Windows.Input.ICommand

Extension Methods