how to setup start up form in C#

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Posted 10-May-11 18:46pm

Ragi Gopi

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-05-10T18:51:00

Solution 1

Main application form is the one used as the argument in System.Windows.Forms.Application.Run. This form is used as a start-up one.

At the same time, some form can be shown before even starting application using System.Windows.Forms.Form.Show, or System.Windows.Forms.Form.ShowDialog and be a part of the application, but the main form will be the same as the one used as the argument in System.Windows.Forms.Application.Run. In this way, the start-up form and main form can be different. This trick will work but it is pretty unusual.

—SA

Posted 10-May-11 18:51pm

Sergey Alexandrovich Kryukov

Updated 10-May-11 18:57pm

v2

Comments

Abhinav S 11-May-11 0:55am

My 5.

Sergey Alexandrovich Kryukov 11-May-11 15:05pm

Thank you, Anhinav.
--SA

Ragi Gopi 11-May-11 0:57am

while checking each form in a project, is there any way to change the start form temporary.

Sergey Alexandrovich Kryukov 11-May-11 0:58am

When the application is already running, the term "start form" makes no sense.
If you explain what do you mean by "start from" in this context, I'll answer.
--SA

Sergey Alexandrovich Kryukov 11-May-11 1:08am

And you cannot change main form. (Probably, this is what you wanted.)
More exactly, the way to do it is to terminate your instance of System.Windows.Forms.Application (by Application.Terminate) and run Application.Run again.

Trust me: if you want to do this, you will spend too much time to smooth out the logic of your application to make it working. Want to try? Go ahead, I explained the idea.

--SA

Hemant__Sharma 11-May-11 1:06am

To the point. simple and clear. My 5

Sergey Alexandrovich Kryukov 11-May-11 1:09am

Thank you. Please see my new comment about changing the main form.
--SA

Abhinav S · Answer 2 · 2011-05-10T18:57:00

Solution 2

See http://msdn.microsoft.com/en-us/library/a2whfskf%28v=vs.80%29.aspx[^].

Posted 10-May-11 18:57pm

Abhinav S

Comments

Sergey Alexandrovich Kryukov 11-May-11 1:05am

Abhinav, this reference needs explanation which Microsoft does not do by some reason. The project Properties "Startup Object" does not decide which is the start-up or main form! It selects the class where the entry point is. (So, it could be "main", but it could be something else; for example, it is required to set if there are more than one "main" of required signature.)

As a result, there can be different versions of the entry point, one is statically selected in a project. And only as a result of this, there can be different main forms. The rest of it works as I described in my answer. (My 4 for this one.)

--SA