icommand
How does WPF determine when to Invalidate using the CommandManager (CommandManager.InvalidateRequerySuggested)?
I\'ve been using the RelayCommand a bit here and there, and it got me to wonder and want to know... when exactly does the CommandManager.InvalidateRequerySuggested() get called by WPF?[详细]
2023-04-11 12:45 分类:问答Are there any performance implications with CanExecuteCommand?
What are the performance implications of us开发者_Python百科ing the CanExecuteCommand of the ICommand object. Is the method executed over and over again?[详细]
2023-04-03 19:11 分类:问答Create a new ICommand object in the ViewModel
Both ICommand objects are bound to a ViewModel. The first approach seems to be used often. But the second one saves some lines of code but would it not create everytime a new ICommand object when th[详细]
2023-04-03 16:09 分类:问答How to implement Command with Tooltip in MVVM?
Most MVVM frameworks implement basic Command pat开发者_如何学Pythontern (for example DelegateCommand in PRISM), that uses Execute and CanExecute methods from ViewModel.[详细]
2023-04-02 11:54 分类:问答Should I check an ICommand's CanExecute method before calling Execute from procedural code?
When using ICommands in XAML, WPF uses the CanExecute method to enable or disable controlsassociated with the command. But what if I am calling Execute from procedural code? Should I first check CanEx[详细]
2023-03-25 17:37 分类:问答Accessing ICommands from MainWindow : Josh Smith's Article
I am following Josh Smith\'s Design explaining WPF + MVVM. I almost have the same requirement 开发者_如何学运维as his demo application. I have to assign the Save command from his CustomerViewModel cla[详细]
2023-03-24 04:34 分类:问答Commands from Details view of MVVM Master/Details app fail
Learning MVVM\\WPF\\C# by building a simple master\\details app. I have a MainView which holds the MasterView, DetailView, and ControlsView. I have added buttons (ICommand) to all views. They all work[详细]
2023-03-23 14:50 分类:问答Button Trigger an Event Or Command that will be caught by another class
I am trying to trigger an event from a Button that will be caught in a different class without having this class as an instance in my class. Can I do that?[详细]
2023-03-23 02:13 分类:问答Can I call a command inside a command?
I have a closecommand defined inside my viewmodel for my dialo开发者_StackOverflowg window.I have another command defined inside that viewmodel.Now I have that command binded to a control in my view.A[详细]
2023-03-17 14:48 分类:问答CanExecuteChanged event of ICommand
Icommand contains two methods and one event. What the two methods do is clear, but I can’t understand what the event does that is provided in ICommand.[详细]
2023-03-14 05:06 分类:问答