Stop opening multiple instances of the child form

[Vivek]

Hi,

I am developing a MDI application. I need to track the child forms open so
that I can stop a user from opening the multiple instances of the same child
form. Now what is the best way of achieving it. I tried using an Forms
Array but is not the most efficient way. I think I can create a collection
but then how do I create a global collection that can be accessed from all
the forms. Please help.

Thanks

 

[Octavio Hernandez]

Vivek,

There is already such a collection, MdiChildren[] in the Form class:

http://msdn.microsoft.com/library/d...stemWindowsFormsFormClassMdiChildrenTopic.asp

Regards - Octavio