How to check if a WinFrom loaded from a DLL is already loaded.

Question

2.00/5 (1 vote)

See more:

Hi Guys,

I have a DLL loaded into a 3rd Party application (AutoCAD). Once loaded i can trigger commands to load winforms to do things with in AutoCAD.

One of my commands loads a dialog.

How I Test if that Dialog is already running and not load the Winform again and just make it active / on top of all other applications?

Thanks in advance.

Stephan

Posted 11-Jan-13 16:56pm

StephanGumpert

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
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.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Balkrishna Patel · Accepted Answer · 2013-05-10T00:05:00

Hi Stephan,

if you want to find particular form is already opened or active. i thing the following may help you.

C#

List<MyForm> CurrentActiveForms = System.Windows.Forms.Application.OpenForms.OfType<MyForm>().ToList();
if(CurrentActiveForms.Count == 0)
{
	// No match form found !!!!
	// request a new form to open
	return;
}

// do your stuff here........
MyForm DesireForm = CurrentActiveForms.FirstOrDefault(I => I.MyCondition == myCondition);

Or

MyForm DesireForm = CurrentActiveForms[0];

if (DesireForm != null || DesireForm.IsDisposed == false)
{
    DesireForm.focus();
}