/// <summary>
/// Use a SelectItemsDialog to choose a single item from the specified collection
/// </summary>
/// <typeparam name="TItem">The type of the item to choose</typeparam>
/// <param name="caption"></param>
/// <param name="items"></param>
/// <returns>The selected item if one is chosen and the dialog is not cancelled, else null</returns>
public static TItem SelectItem <TItem>(string caption, ICollection <TItem> items)
where TItem : class, INamed
{
var dialog = new SelectItemsDialog(caption, (ICollection)items);
if (dialog.ShowDialog() == true)
{
return(dialog.SelectedItem as TItem);
}
return(null);
}
/// <summary>
/// Use a SelectItemsDialog to choose a subset of items from the specified collection
/// </summary>
/// <typeparam name="TCollection"></typeparam>
/// <param name="caption"></param>
/// <param name="sourceItems"></param>
/// <returns></returns>
public static TCollection SelectItems <TCollection>(string caption, TCollection sourceItems)
where TCollection : class, IList, ICollection, new()
{
var dialog = new SelectItemsDialog(caption, sourceItems, SelectionMode.Multiple);
if (dialog.ShowDialog() == true)
{
TCollection result = new TCollection();
foreach (object item in dialog.SelectedItems)
{
result.Add(item);
}
return(result);
}
return(null);
}
