Instancing checkbox not there

  • Thread starter Thread starter Bill Angus
  • Start date Start date
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Bill Angus

I want to make an application that I have been working on a single instance
application. the singleinstance checkbox does not appear anywhere on the
project designer window. I suppose this is a bug of some kind in VStudio or
the the project designer. Can anybody tell me if there is a way to make an
VB 2005 application into a single instance app without using the project
designer checkbox?

I tried to trap the next instance event in "application events", as
below.... but the did not work...

Private Sub me_AlreadyOpen(ByVal sender As System.Object, ByVal e As
Microsoft.VisualBasic.ApplicationServices.StartupNextInstanceEventArgs)
Handles MyBase.StartupNextInstance

frmPM_Main.Select()

End Sub

any ideas greatly appreciated.
Happy Nnew Year!

Bill Angus, MA
http://www.psychtest.com
 
In Visual Studio 2005, in your Project Properties (double-click on
MyProject), under the Application tab, there is a checkbox for "Make
single instance application".

Robin S.
 
That's what my problem is... when I look at the tab there is no check-box for Make single instance !! :)

All I have is 2 text boxes, 3 drop-down combo boxes and a button... for the following....
Assembly name: Root Namespace:
Application type: Icon:
Startup object: Assembly information:

There is no option to make my app single instance. I believe that when I defined the windows application project I did make it single instance, but it is now no longer single instance and I find a was to change it back and set it up correctly.

Thanks in advance anybody who knows about this bug... and if there is a way to fix it. Have a great day!

Bill Angus, MA
http://www.psychtest.com
In Visual Studio 2005, in your Project Properties (double-click on
MyProject), under the Application tab, there is a checkbox for "Make
single instance application".

Robin S.
 
You have nothing after Startup object? Really? What kind of application
is it?
Is it a Windows Application or Web? VB or C#? If you have multiple
projects,
are you looking at the properties on the one that is the startup?

Robin S.
That's what my problem is... when I look at the tab there is no
check-box for Make single instance !! :)

All I have is 2 text boxes, 3 drop-down combo boxes and a button... for
the following....
Assembly name: Root Namespace:
Application type: Icon:
Startup object: Assembly information:

There is no option to make my app single instance. I believe that when I
defined the windows application project I did make it single instance,
but it is now no longer single instance and I find a was to change it
back and set it up correctly.

Thanks in advance anybody who knows about this bug... and if there is a
way to fix it. Have a great day!

Bill Angus, MA
http://www.psychtest.com
In Visual Studio 2005, in your Project Properties (double-click on
MyProject), under the Application tab, there is a checkbox for "Make
single instance application".

Robin S.
 
Yep the checkbox is not there. This is a multiform, VB, windows forms
application. There is one project in the solution and a setup project that
creates the setup/distribution .MSI

I suppose I can create a new Windows forms app, set the checkbox for single
instance, and then try to figure out what sort of code this generates. then
I can paste the generated code or something like it into my app.

Bill Angus, MA
http://www.psychtest.com
 
That's so weird. Why don't you create a blank solution, then
add all of your forms and stuff to it -- if you choose "Add
Existing Item", it will copy it from wherever it is into the
new directory. Maybe that will fix the problem.

Robin S.
-------------------
 
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