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The same thing happened to me.
It seems to be a problem with VS itself and not your app or system.
Try to reinstall VS, and apply any and all updates.
Its a long way but, it fixed my problem.
How to solve a Programing error:
1. Spell check
2. Debug
3. http://www.codeproject.com
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I tried re-installing but get the same error.
I do have problems updating the SP1. Maybe if I can get this loaded then it should solve my problem.
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I tried re-installing and I still get the same problem.
This may help, when I save before running, it works. No use as I want to run my app before saving changes.
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Could you post my a copy of your code?
Maybe it's something there.
And also check that your IDE is "Stopped" before you try to change anything.
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Thanks josefvz for getting back.
I have written no code yet. I have just installed VS 2008 onto my PC. I put a button onto a form, pressed F5. It worked. I then put another button onto the same form and tried to run. I got the error. I then saved everything, it worked.
I am also having problems installing SP 1.
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So the IDE DEFINITLY STOPS EXECUTION before you add the 2nd button?
How to solve a Programing error:
1. Spell check
2. Debug
3. http://www.codeproject.com
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Everything seems to have stopped execution but maybe there is something running in the background that I am not aware off. It points to that sort of problem. I can add new button etc so I thought the execution was complete but it must be hanging onto something.
Is there a way of finding out or some setting I can change?
Hope I have answered your question.
Thanks again for your help.
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Yes, you've answered it.
The process that runs is called vbexpress.exe (For VS2008 Express)
The proces that "Hosts" your app is called "SolutionName.vshost.exe"
It stays in the memory even if the IDE is stopped, so i don't think that is your problem.
When VS first runs an app without you saving it, it creates files, maybe those files are set to read-only by defualt?
And then when you save they are overwritten.
Also does this only happen in GUI progeramming?
What about Console Apps, and Library Files?
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Thanks agains.
I have tried this with VS 2005/2003 and do not get this problem. I also have run this in administrator mode even my rights are admin so I should be permitted to do everything.
I have checked the file are their attributes are not read only. At the moment I am only developing GUI.
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Well, i'm sorry i can't seem to figure out your problem.
I tried to google it as well but only came up with: "the designer is currently in read-only mode"
Maybe you should try to contact VS support? It may be a problem only relevent to your computer system.
Sorry that i can't be of any more assistance.
Someone else (prefferable more experianced than me) HELP OVER HERE!!
lol.
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Thanks josefvz for all your help, if I find a solution I will let you know.
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Hi,
I found a workaround. If you run the app from the code viewer then it works. If you run the app from View designer then you get the message.
I am just going to go with running app in code viewer for the present time.
I also managed to install SP 1 but it made no difference.
Thanks again for all your help.
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Great!
It's good that you found an workaround.
Please just Edit your OP's (Original Post) Subject and and [SOLVED][WORKAROUND]
to the begining.
Then when you have the solution just come and Post it here, and remove the [WORKAROUND]
Regards, Josef
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Have You posted a message about this error on Microsoft yet?
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and can you paste me a copy of the hole error message plz
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Here is a copy of the message. All I done to the form was add/move an extra button.
---------------------------
Microsoft Visual Studio
---------------------------
The file C:\Temp\DeleteThis\ABCDEFG\Form1.vb cannot be modified at this time.
---------------------------
OK
---------------------------
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ok i think i have a answer for you
if you create a project and just run it.
vs saves it in this temp folder as a read only file
and if you try to edit it after you ran it then it can]'t be edited anymore
try running the project first time
then stop the program
then save it as a other project name in a other folder
then try editing it again
if it still gives you the same error try
saving it in a folder you choose from the start and then run it
then try editing it again
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Hi Unforgiv3n,
Thanks for a possible solution but unfortunately it never worked.
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then i realy dont know sorry mate
you will have to ask vs support on microsoft
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I found a workaround. If you run the app from the code viewer then it works. If you run the app from View designer then you get the message.
I am just going to go with running app in code viewer for the present time.
I also managed to install SP 1 but it made no difference.
Thanks again for all your help.
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I'm having a problem when using a msgbox on a second loaded form. I have two forms ... frmMain (default) and frmSecondary. When the program is run, frmSecondary will eventually be loaded and displayed as the active window (both are maximized, frmMain is still loaded in the background). Now, when a msgbox is used to advise the user of some occurence on frmSecondary, the frmSecondary disappears and frmMain suddenly appears behind the msgbox. Once the msgbox is clicked(i.e.,closed) the frmMain disappears (usually),and again reveal the frmSecondary. I would be grateful if someone could tell me why this is occurring.
Note both the forms are border Style is set to None.
Thank you.
modified on Friday, January 8, 2010 5:06 AM
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Try
MessageBox.Show(frmSecondary, "Hello World");
Good luck 
I are Troll 
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Hello Eddy Vluggen,
Its Vb6 application.
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I guess that the MsgBox is a form without a parent, and the MsgBox[^] method of VB6 doesn't have a parameter to set that. Without a parent, focus will be returned to the application, giving it's mainform the focus.
Alternatively, you can call the MessageBoxA method from User32;
Private Declare Function MessageBox Lib "user32" Alias "MessageBoxA" ( _
ByVal hWnd As Long, _
ByVal lpText As String, _
ByVal lpCaption As String, _
ByVal wType As Long) As LongThat goes into a module, and you can call it like this;
MessageBox Me.hWnd, _
"Caption", _
"Text goes here", _
vbExclamationGood luck
I are Troll
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