WebC# 将参数传递给ICommand,c#,wpf,C#,Wpf,我有一个简单的按钮，在执行时使用命令，这一切都很好，但我想在单击按钮时传递一个文本参数 我认为我的XAML还可以，但我不确定如何编辑我的RelayCommand类以接收参数： http://duoduokou.com/wpf/22879728039040218070.html

关于带有构造函数参数的lambda的c#：RelayCommand 码农家园

WebCommands are used for handling Events in WPF while respecting the MVVM-Pattern. A normal EventHandler would look like this (located in Code-Behind ): public MainWindow () { _dataGrid.CollectionChanged += DataGrid_CollectionChanged; } private void DataGrid_CollectionChanged (object sender, System.Collections.Specialized ... inbred west virginia family

Wpf RelayCommand CanExecuteChanged event does not work

WebThe RelayCommand is similar to the RelayCommand, but allows to directly pass an object to the command. It implements the ICommand interface and can therefore be used to bind to Command s in XAML (e.g. as the Command property of the Button element). You can then use the CommandParameter property to pass the object to the command. Web这是一个老问题，但是我最近偶然发现了这个话题，值得回答。 此异常行为的原因源自 RelayCommand 的MVVM Light实现。 execute和canexecute处理程序在中继命令中存储为 WeakAction _execute 和 WeakFunc _canExecute 。 WeakAction 试图在由于某种原因UI仍然引用命令时允许对视图模型进行GC清理。 http://duoduokou.com/csharp/27061007113838859071.html inclination\u0027s ch