Click here to Skip to main content
13,152,181 members (38,990 online)

To check if a referenced class object is already active or not

pragaas.1988 asked:

Open original thread
I have two windows application projects. I referenced one of the project in the other project and created an instance(object) for the referenced project class.

First project is referenced in the second project.

Second project is my start-up project. When I click a button in my second project, the first project's form will get opened [; ]. So at this point of time, both the forms will be active.

When I click another button in the second project's form, is there a possibility to check if my first project's form is already open or closed ?

Kindly help me out.
Tags: C#, .NET


When answering a question please:
  1. Read the question carefully.
  2. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
  3. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Let's work to help developers, not make them feel stupid.
Please note that all posts will be submitted under the The Code Project Open License (CPOL).

Advertise | Privacy |
Web02 | 2.8.170924.2 | Last Updated 26 Mar 2009
Copyright © CodeProject, 1999-2017
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100