WPF关于Combobox可以进行编辑并且按回车可以进行换行

首先是Combobox的IsEditable="True"

        private void ComboBox_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter) {
                e.Handled = false;
                (e.OriginalSource as TextBox).AcceptsReturn = true;
                (e.OriginalSource as TextBox).TextWrapping = TextWrapping.Wrap;
            }
            
        }