本文所述实例主要实现了WinForm实现按名称递归查找控件的成果，在C#项目开发中有必然的应用价值，分享给大家供大家参考借鉴。
关键代码如下：
/// <summary> /// 向下递归查找控件 /// </summary> /// <param>查找控件的父容器控件</param> /// <param>查找控件名称</param> /// <returns>若没有查找到返回NULL</returns> public static Control DownRecursiveFindControl(this Control parentControl, string findCtrlName) { Control _findedControl = null; if (!string.IsNullOrEmpty(findCtrlName) && parentControl != null) { foreach (Control ctrl in parentControl.Controls) { if (ctrl.Name.Equals(findCtrlName)) { _findedControl = ctrl; break; } else { if (ctrl.Controls.Count > 0) _findedControl = DownRecursiveFindControl(ctrl, findCtrlName); } } } return _findedControl; } /// <summary> /// 将Control转换某种控件类型 /// </summary> /// <typeparam>控件类型</typeparam> /// <param>Control</param> /// <param>转换功效</param> /// <returns>若告成则返回控件；若掉败则返回NULL</returns> public static T Cast<T>(this Control control, out bool result) where T : Control { result = false; T _castCtrl = null; if (control != null) { if (control is T) { try { _castCtrl = control as T; result = true; } catch (Exception ex) { Debug.WriteLine(string.Format("将Control转换某种控件类型异常，原因:{0}", ex.Message)); result = false; } } } return _castCtrl; }
测试代码如下：
bool _sucess = false; CheckBox _finded = this.DownRecursiveFindControl("checkBox1").Cast<CheckBox>(out _sucess); if (_sucess) { MessageBox.Show(_finded.Name); } else { MessageBox.Show("Not Finded."); }
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