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c# Programming Glossary: canexecute

ICommand binding causing UI memory leak in WPF application

http://stackoverflow.com/questions/12919288/icommand-binding-causing-ui-memory-leak-in-wpf-application

. . . c# wpf linq share improve this question The CanExecuteChanged event handler is likely implicated in the leak. WPF expects.. the ParameterlessCommand instance seems to imply that CanExecute will always be true and you don't need the event at all. Are.. at all. Are you actually firing the event anywhere or is OnCanExecuteChanged unused code If not replace the event definition with..

WPF ICommand MVVM implementation

http://stackoverflow.com/questions/1468791/wpf-icommand-mvvm-implementation

one delegate is void for OnExecute the other bool for OnCanExecute . So in the constructor of my ICommand which is called by the.. this.Command1 new TestCommand ExecuteCommand1 CanExecuteCommand1 this.Command2 new TestCommand ExecuteCommand2 CanExecuteCommand2.. this.Command2 new TestCommand ExecuteCommand2 CanExecuteCommand2 this.Command3 new TestCommand ExecuteCommand3 CanExecuteCommand3..

Asynchronous WPF Commands

http://stackoverflow.com/questions/151686/asynchronous-wpf-commands

class AsyncCommand ICommand public event EventHandler CanExecuteChanged public event EventHandler ExecutionStarting public event.. get return _isExecuting private set _isExecuting value if CanExecuteChanged null CanExecuteChanged this EventArgs.Empty protected.. private set _isExecuting value if CanExecuteChanged null CanExecuteChanged this EventArgs.Empty protected abstract void OnExecute..

Give some command to View in MVVM

http://stackoverflow.com/questions/15465161/give-some-command-to-view-in-mvvm

class ActionCommand T ICommand public event EventHandler CanExecuteChanged private Action T _action public ActionCommand Action.. ActionCommand Action T action _action action public bool CanExecute object parameter return true public void Execute object parameter..

Why && and not &

http://stackoverflow.com/questions/7331686/why-and-not

is canceled as soon as the result is clear. Example if CanExecute CanSave If CanExecute returns false the complete expression.. as the result is clear. Example if CanExecute CanSave If CanExecute returns false the complete expression will be false regardless.. the following code as mentioned by TJHeuvel if op null op.CanExecute Do Something CanExecute is only executed if op is not null ...