删除GridView中的选定项目

Question

IList<object> itemsSelected = MyGrid.SelectedItems;

foreach (object itemSelected in itemsSelected)
{
   MyGrid.SelectedItems.Remove(itemSelected);
}

I try remove selected items from a GridView but not all selected items are removed. Could someone help me?

Answer 1

object[] itemsSelected = MyGrid.SelectedItems.ToArray<object>();
        foreach (object item in itemsSelected)
        {
            MyGrid.Items.Remove(item);
        }

Answer 2

I had the exact problem as well. I wrote something like this but it didn't delete all items too, just some of them :

foreach(var item in MyGridView.SelectedItems)
{
     MyGridView.Items.Remove(item);
}

But write this which will delete all your selected items for sure :

while (YourGridView.SelectedItems.Count != 0)
{
    YourGridView.Items.Remove(YouGridView.SelectedItem);
}

Answer 3

there isn't exception, when you use foreach with SelectedItems? When you remove item, SelectedItems array is modified and foreach throws an exception. (Though I've tried on ListBox control). Try to use for-operator and remove items from last to first by index.

Answer 4

Based on your answers in the comments, I assume you are working on a C# winforms application.

Is it possible that what you are actualy using is a ListBox and not a GridView ?

If that is so, you should use the ClearSelected() method which unselects all items in the ListBox .