WPF获取子、父窗体控件

原创已于 2024-04-17 09:41:37 修改 · 置顶 · 6.5k 阅读

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#控件

于 2013-08-27 17:00:48 首次发布

/// <summary>
/// 获得父窗体控件
/// </summary>
/// <typeparam name="T">要获得控件类名</typeparam>
/// <param name="obj">当前子控件名</param>
/// <param name="name">要查询父控件名</param>
/// <returns>要获得控件类名</returns>
public static T GetParentObject<T>(DependencyObject obj, string name) where T : FrameworkElement
{
DependencyObject parent = VisualTreeHelper.GetParent(obj);
//DependencyObject parent2 = VisualTreeHelper.GetParent(parent);

while (parent != null)
{
if (parent is T && (((T)parent).Name == name || string.IsNullOrEmpty(name)))
{
return (T)parent;
}
parent = VisualTreeHelper.GetParent(parent);
}
return null;
}
/// <summary>
/// 获得子控件
/// </summary>
/// <typeparam name="T">要获得控件类名</typeparam>
/// <param name="obj">当前控件名</param>
/// <param name="name">要查询子控件名</param>
/// <returns>要获得控件类名</returns>
public static T GetChildObject<T>(DependencyObject obj, string name) where T : FrameworkElement
{
DependencyObject child = null;
T grandChild = null;

for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++)
{
child = VisualTreeHelper.GetChild(obj, i);

if (child is T && (((T)child).Name == name | string.IsNullOrEmpty(name)))
{
return (T)child;
}
else
{
grandChild = GetChildObject<T>(child, name);
if (grandChild != null)
return grandChild;
}
}

return null;

}