DelegateCommand<T> Class
Provides an ICommand implementation based on delegates.
public class DelegateCommand<T>- Type Parameters:
-
T-The parameter type.
- Inheritance:
- object object
- Derived:
- PreviewableDelegateCommand<T>
Constructors
DelegateCommand(Action<T?>, Func<T?, bool>?)
Initializes an instance of the class.
public DelegateCommand(Action<T?> executeAction, Func<T?, bool>? canExecuteFunc = null)| Parameter | Type | Description |
|---|---|---|
| executeAction | Action<T> | The execute action. |
| canExecuteFunc | Func<T, bool> | The can-execute function, or |
Methods
CanExecute(T?)
Defines the method that determines whether the command can execute in its current state.
public bool CanExecute(T? parameter)| Parameter | Type | Description |
|---|---|---|
| parameter | T | Data used by the command. If the command does not require data to be passed, this object can be set to |
Returns
- bool:
trueif this command can be executed; otherwise,false.
Execute(T?)
Defines the method to be called when the command is invoked.
public void Execute(T? parameter)| Parameter | Type | Description |
|---|---|---|
| parameter | T | Data used by the command. If the command does not require data to be passed, this object can be set to |
RaiseCanExecuteChanged()
Raises the CanExecuteChanged event.
public void RaiseCanExecuteChanged()Events
CanExecuteChanged
Occurs when changes occur that affect whether or not the command should execute.
Inherited Members
- object.GetType()
- object.MemberwiseClone()
- object.ToString()
- object.Equals(object)
- object.Equals(object, object)
- object.ReferenceEquals(object, object)
- object.GetHashCode()