How do I clear a combobox in WPF? I have tried this code:
private void btClear1_Click(object sender, RoutedEventArgs e)
{
txtID.Text = String.Empty;
this.cbType.SelectedItem = -1;
}
To clear the selection set the SelectedIndex
not the SelectedItem
cboType.SelectedIndex = -1;
You can set the SelectedItem
or SelectedValue
as well, but change it to null
instead of -1 (these point to an object not an integer).
cboType.SelectedItem = null;