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GeneralRe: DNS Resolve problem in .NET 2.0??? Pin
kvnsdr13-Feb-06 3:16
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QuestionConditional Property Setters (friends in C#) Pin
Marc Clifton11-Feb-06 8:00
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AnswerRe: Conditional Property Setters (friends in C#) Pin
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AnswerRe: Conditional Property Setters (friends in C#) Pin
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QuestionHow can i disable temporarily warnings/error from the code? Pin
e-laj11-Feb-06 7:41
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AnswerRe: How can i disable temporarily warnings/error from the code? Pin
Kevin McFarlane11-Feb-06 8:43
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GeneralRe: How can i disable temporarily warnings/error from the code? Pin
e-laj11-Feb-06 12:02
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GeneralRe: How can i disable temporarily warnings/error from the code? Pin
Kevin McFarlane11-Feb-06 12:20
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AnswerRe: How can i disable temporarily warnings/error from the code? Pin
Wayne Phipps11-Feb-06 8:43
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AnswerRe: How can i disable temporarily warnings/error from the code? Pin
Dave Kreskowiak11-Feb-06 8:51
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GeneralRe: How can i disable temporarily warnings/error from the code? Pin
e-laj11-Feb-06 11:59
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Questionenumeration was modified operation may not execute Pin
spirit_of_pak11-Feb-06 6:23
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AnswerRe: enumeration was modified operation may not execute Pin
Ravi Bhavnani11-Feb-06 6:38
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AnswerRe: enumeration was modified operation may not execute Pin
perlmunger11-Feb-06 6:45
memberperlmunger11-Feb-06 6:45 
Try this instead:
private void CloseOldForms()
{
	FormCollection frmColl = Application.OpenForms;
 
	foreach ( int i = 0; i < frmColl.Count; ++i )
	{
		Form tempFrm = frmColl[i];
		string tempFrmTxt = tempFrm.Tag.ToString();
		if (tempFrmTxt.Equals("NOTMAIN"))
		{
			tempFrm.Close();
		}
	}
}
I'm not absolutely sure of this, but I think that when you call Close on your form, it is attempting to remove the form object from the form collection automatically which is what causes this error since you are at that point in effect trying to alter the contents of the collection over which you are iterating.

Hope that helps.

-Matt

------------------------------------------

The 3 great virtues of a programmer:
Laziness, Impatience, and Hubris.
--Larry Wall
GeneralRe: enumeration was modified operation may not execute Pin
Dave Kreskowiak11-Feb-06 8:46
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GeneralRe: enumeration was modified operation may not execute Pin
perlmunger11-Feb-06 11:10
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AnswerRe: enumeration was modified operation may not execute Pin
malharone11-Feb-06 7:31
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GeneralRe: enumeration was modified operation may not execute Pin
Colin Angus Mackay11-Feb-06 13:41
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GeneralRe: enumeration was modified operation may not execute Pin
malharone11-Feb-06 18:14
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GeneralRe: enumeration was modified operation may not execute Pin
Colin Angus Mackay12-Feb-06 1:34
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GeneralRe: enumeration was modified operation may not execute Pin
malharone12-Feb-06 5:27
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GeneralRe: enumeration was modified operation may not execute Pin
spirit_of_pak12-Feb-06 17:28
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QuestionError Pin
NaNg1524111-Feb-06 3:54
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AnswerRe: Error Pin
perlmunger11-Feb-06 7:15
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GeneralRe: Error Pin
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GeneralRe: Error Pin
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GeneralRe: Error Pin
perlmunger11-Feb-06 11:09
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QuestionCreate list with Grid and getting Process info in C#. Pin
yanshof11-Feb-06 1:37
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AnswerSome one can help me with this question please ? Pin
yanshof11-Feb-06 9:02
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AnswerRe: Create list with Grid and getting Process info in C#. Pin
Dave Kreskowiak11-Feb-06 10:51
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QuestionHow to browse SQL server from a network? Pin
bouli10-Feb-06 21:46
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AnswerRe: How to browse SQL server from a network? Pin
perlmunger11-Feb-06 6:34
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QuestionI need Help Pin
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AnswerRe: I need Help Pin
Wayne Phipps10-Feb-06 21:35
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QuestionDLL Problem Pin
ExpertComing10-Feb-06 14:06
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AnswerRe: DLL Problem Pin
Dave Kreskowiak10-Feb-06 14:28
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GeneralRe: DLL Problem (How?) Pin
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GeneralRe: DLL Problem (How?) Pin
Dave Kreskowiak10-Feb-06 14:56
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GeneralRe: DLL Problem (How?) Pin
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GeneralRe: DLL Problem (How?) Pin
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GeneralRe: DLL Problem (How?) Pin
Dave Kreskowiak10-Feb-06 16:50
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GeneralRe: DLL Problem (How?) Pin
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GeneralRe: DLL Problem (How?) Pin
Dave Kreskowiak10-Feb-06 17:25
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GeneralRe: DLL Problem (How?) Pin
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Question2 question about C#.... Pin
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AnswerRe: 2 question about C#.... Pin
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AnswerRe: 2 question about C#.... Pin
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AnswerRe: 2 question about C#.... Pin
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QuestionDrawing with c# Pin
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AnswerRe: Drawing with c# Pin
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