Instead of adding each item one by one to the ListBox destinationList
from the string array m_List
like this:
foreach (object name in m_List)
{
destinationList.Items.Add((string)name);
}
Is there any better way I can do it?
I don't want to bind the data to the destinationList since I want to delete some entries from the ListBox later on.
如果你只想更优雅地表达它,那么也许这会起作用。
stringList.ForEach(item => listBox1.Items.Add(item));
HTH:
string[] list = new string[] { "1", "2", "3" };
ObservableCollection<string> oList;
oList = new System.Collections.ObjectModel.ObservableCollection<string>(list);
listBox1.DataContext = oList;
Binding binding = new Binding();
listBox1.SetBinding(ListBox.ItemsSourceProperty, binding);
(listBox1.ItemsSource as ObservableCollection<string>).RemoveAt(0);
Just use (ItemSource as ObservableCollection)... to work with items, and not Items.Add etc.
使用OberservableCollection
Okay.. if binding is not an option - and I would probably go that way if it was... then the only more efficient way to populate the listbox would be to do it in parallel.
(For this to work I am assuming you have the .Net 4 runtime, or the PLinq libraries installed)
The following code would show massive improvements on a multicore machine provided the collection of data was large enough to warrant the overhead of the initial setup. So this would only be viable for larger arrays.
Parallel.ForEach(list, r => destinationList.Items.Add(r));
Else I don't see anything wrong with your foreach loop.
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