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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.

Posted 11-Jan-13 17:56pm

1 solution

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Solution 1

Hi Stephan,

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

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
// do your stuff here........
MyForm DesireForm = CurrentActiveForms.FirstOrDefault(I => I.MyCondition == myCondition);
MyForm DesireForm = CurrentActiveForms[0];
if (DesireForm != null || DesireForm.IsDisposed == false)

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