[RESOLVED] A startup form has not been specified

[BrianPaul]

I have a VB.net program that originally had a form. I added a module and then deleted the form, but now I get the error...

"A startup form has not been specified"

With VB6 I would change the startup object to sub main, but I can't see how to do this in the properties of the project. I tried changing the application type to console, but then I get the following error...

No accessible 'Main' method with an appropriate signature was found in 'WindowsApplication1'

How can I do this without using the original form?

[Skatebone]

You want to run a module without an application?
Thats impossible :/

You can double click on "my project" to view all project properties and startup form.

[BrianPaul]

Hmm... with VB6 you could have an app without a form. I guess what I need to do is have a form, but not show it. In that case, how would I have the form not show and how would I have the code start executing? Right now it's a command button that starts the execution.

[keystone_paul]

I have a VB.net program that originally had a form. I added a module and then deleted the form, but now I get the error...

"A startup form has not been specified"

With VB6 I would change the startup object to sub main, but I can't see how to do this in the properties of the project. I tried changing the application type to console, but then I get the following error...

No accessible 'Main' method with an appropriate signature was found in 'WindowsApplication1'

How can I do this without using the original form?

Interesting question - I hit exactly the same issue the other day - I'm sure that in .Net I've also done the same thing but possibly in 2005 or earlier.

I don't know if its something that has disappeared in 2008.

You can put your startup code in the my.application.startup event but I was surprised to find the sub Main option missing.

[BrianPaul]

Oh wait, you said "module without an application". I do want it to be an application. How do I go about making the application work with a module instead of a form?

[BrianPaul]

I'm using 2005, not 2008.

[keystone_paul]

Researching a bit it seems the same applies to 2005 so I must have been thinking 2003.

To access the my.application.startup event you go to Project Properties and select the application tab and click the "View Application Events" button and it opens a new module containing a partial class MyApplication which has a number of events including Startup. That would allow you to effectively do what you would previously have done in a sub Main.

If you don't want to have any forms at all then why not create a console application instead of a forms application?

[SJWhiteley]

You need to uncheck 'Enable Application Framework' on the My Project/Application tab. You can then select the Sub Main entry point to the application (Startup Object).

[BrianPaul]

I did uncheck 'Enable Application Framework' and I set the startup object to 'Sub Main', but I still get this error when I try to run the program...

No accessible 'Main' method with an appropriate signature was found in 'WindowsApplication1'.

[jmcilhinney]

Do you have a Main method in your module?

[BrianPaul]

Ok, got it. I had copied my command click sub from the form and forgot to remove some arguments. I needed to change...

Sub main(ByVal sender As System.Object, ByVal e As System.EventArgs)

to...

Sub main()

Thanks for the help!