[英]Remove combobox item from combobox WPF
How to delete combobox item? 如何删除组合框项目? i tried this code but it does not work.
我尝试了此代码,但它不起作用。
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
foreach (var item in cbRooms.Items)
{
if (((ComboBoxItem)item).Content.ToString() == cbRooms.Text.ToString())
{
cbRooms.Items.Remove(((ComboBoxItem)item).Content.ToString());
}
}}
与其尝试删除字符串,不如尝试:
cbRooms.Items.Remove((ComboBoxItem)item))
Try removing the ComboBoxItem rather than: 尝试删除ComboBoxItem而不是:
(ComboBoxItem)item).Content.ToString()
Try: 尝试:
(item)
You may also need to refresh the combo box control after you remove the item: 删除项目后,您可能还需要刷新组合框控件:
cbRooms.Items.Refresh();
UPDATE UPDATE
You could try what kzen said in the comments of the OP. 您可以尝试kzen在OP的评论中说的话。 Use a
List<ComboBoxItem>
to store your items, and perform the add/remove operations on the List
. 使用
List<ComboBoxItem>
存储您的项目,并在List
上执行添加/删除操作。 Then bind the list to your ComboBox
: 然后将列表绑定到您的
ComboBox
:
cbRooms.ItemsSource = comboBoxItemList;
Then when you do your operations on the List
call the refresh: 然后,当您在
List
上执行操作时,请调用刷新:
cbRooms.Items.Refresh();
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