清除wpf中的datagrid Itemssource

Question

I'm using a datagrid in my program,and bind it with Itemssource. I wanna clear all rows programmatically ,not one by one and I wanna save my Itemssource so I can't use datagrid.Itemssource=null; because I can't use datagrid with that Itemssource again, and I dont want to make a new Itemssource each time,in fact,I have to clear my Itemssource programmatically. now,any idea to clear rows?? thx

Answer 1

if you have a ObservableCollection bind to your DataGrid ItemsSource simply use .Clear()

public OberservableCollection<MyItem> MyCollection {get;set;}

<DataGrid ItemsSource="{Binding MyCollection}" />


//anywhere
MyCollection.Clear();