在wpf mvvm中单击按钮时将集合绑定到xamdatagrid

Question

如何在wpf mvvm中点击按钮时将集合绑定到xamdatagrid？

Answer 1

XAML

   <Button Command="{Binding ButtonCommand}">Button</Button>
   <DataGrid ItemsSource="{Binding MyCollection}">
   ...
   configure columns to MyRowViewModel
   ...
   </DataGrid>

视图模型

   public class MyViewModel
   {
     public ICommand ButtonCommand {get;set;}
     public ObservableCollection<MyRowViewModel> MyCollection {get;set;}
   }

并在OnLoad中设置：

   View.DataContext = viewModel;

当调用命令时，更改您的集合或创建并自动更新网格wpf