/// <summary>/// C# 只遍歷控件子控件，不遍歷孫控件///當控件有子控件時，需要用遞歸的方法遍歷，才能全部列出控件上的控件/// </summary>/// <typeparam name="T">控件類型</typeparam>/// <param name="control">要遍歷的控件</param>/// <param name="controlsName">控件名</param>/// <returns></returns>public static T GetControl<T>(Control control, string controlsName) where T : Control{  if (control == null) return null;  Control _control;  for (int i = 0; i < control.Controls.Count; i++)  {    _control = control.Controls[i];    if (_control == null) return null;    if (_control.Name == controlsName && _control is T)      return (T)_control;    if (_control.HasChildren)    {      _control = GetControl<T>(_control, controlsName);      if (_control != null)        return (T)_control;    }  }  return null;}/// <summary>/// 遍歷窗體所有子控件/// </summary>/// <typeparam name="T">控件類型</typeparam>/// <param name="form">窗體名</param>/// <param name="controlsName">控件名</param>/// <returns></returns>public static T GetControl<T>(Form form, string controlsName) where T : Control{  T _Control = null;  for (int i = 0; i < form.Controls.Count; i++)  {    _Control = GetControl<T>(form.Controls[i], controlsName);    if (_Control != null)      return _Control;  }  return null;}