[WinForm] recursively finds controls by name

Key code:

        // <summary>        /// down recursive lookup control        // </summary>        // <param name= "ParentControl" > Find control's parent container control </param>        /// <param name= "Findctrlname" > Find control Name </param>        // <returns> if not found return null</returns>         Public StaticControl Downrecursivefindcontrol ( ThisControl ParentControl,stringFindctrlname) {Control _findedcontrol =NULL;if(!string. IsNullOrEmpty (findctrlname) && ParentControl! =NULL)            {foreach(Control CtrlinchParentcontrol.controls) {if(CTRL. Name.equals (Findctrlname)) {_findedcontrol = CTRL; Break; }Else{if(CTRL.                    Controls.Count > 0) _findedcontrol = Downrecursivefindcontrol (ctrl, Findctrlname); }                }            }return_findedcontrol; }// <summary>        /// convert control to a type of controls        // </summary>        // <typeparam name= "T" > control type </typeparam>        /// <param name= "Control" >Control</param>        // <param name= "result" > Conversion results </param>        // <returns> Returns the control if successful, or null</returns> if it fails         Public StaticT cast<t> ( ThisControl control, out BOOLResultwhereT:control {result =false; T _castctrl =NULL;if(Control! =NULL)            {if(Control isT) {Try{_castctrl = control asT result =true; }Catch(Exception ex) {Debug.WriteLine (string. Format ("Control is converted to some type of exception, cause: {0}", ex.                        Message)); result =false; }                }            }return_castctrl; }

Test code:

 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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