RE:Forms Mdi Containers

Question

Hi All

I am using Visual studio 2005(c#) for creating my windows application. In my parent form (i.e. Mdi container) I am using menu strip control. when i am clicking menu strip, child window is loading on parent window and I am disabling menu strip,up to this its working fine. The problem is when I am closing the child window by using the click event of the button which is in child ,I am struggling to enable the menu strip in the parent window . Any one helps me solve this.

ganesh kuppuswany · Answer

Hi friend 1.While executing my project the highlighted blue line in the below code gives error as 'Top-level control cannot be added to a control .'. ChildFrm objChild=new ChildFrm(); objChild.parent = this; mnustrip.enable = false; objChild.ShowDialogue(); 2. In the child form in the close event.I am unable to access the public function EnableMenustrip() which is in parent form by using the below code . this.Parent.EnableMenustrip();

Arun Kumar · Answer

Hi Friend While invoking the child from from parent form U can pass a referece of parent ot the child or set the childform parent property as parent form reference as follows: Mainform: ---------------------------------------- ChildFrm objChild=new ChildFrm(); objChild.parent = this; mnustrip.enable = false; objChild.ShowDialogue(); --------------------------------------- The main form should have a public function like this public void EnableMenustrip() { mnustrip.Enable = true; } ---------------------------------------- Next in the Child form 1. Select the Form Closing Even and write the code as follows: this.Parent.EnableMenustrip(); This function will be invoked when the child closing event fired.. I think this is feature you were expecting for - AMG