WPF -清除TabControl的所有TabItem中的所有文本框

private void ClearTextBoxesInTabControl(TabControl tabControl)
{
    foreach (TabItem tabItem in tabControl.Items)
    {
        // Get the content of the TabItem
        var content = tabItem.Content as FrameworkElement;
        
        // Check if the content is not null
        if (content != null)
        {
            // Traverse all child controls in the content
            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(content); i++)
            {
                var child = VisualTreeHelper.GetChild(content, i) as FrameworkElement;
                
                // Check if the child control is a TextBox
                if (child != null && child.GetType() == typeof(TextBox))
                {
                    // Clear the TextBox
                    ((TextBox)child).Text = string.Empty;
                }
            }
        }
    }
}