How to set another form to run as application in C#

Question

I deleted default Form1 from my project and added another Windows Form as MyForm().How to set this to run as application. In fact I replaced

Application.Run(new Form())

to

Application.Run(new MyForm())

But its giving the following error:

Error 1 The type or namespace name 'MyForm' could not be found (are you missing a using directive or an assembly reference?)

Show the code of the MyForm class, then it should be easily solvable :) — Øyvind Bråthen
– Øyvind Bråthen, Commented Dec 9, 2010 at 9:50
Error 1 The type or namespace name 'MyForm' could not be found (are you missing a using directive or an assembly reference?)....Is any other way to this? — Dark Knight
– Dark Knight, Commented Dec 9, 2010 at 9:50
MyForm is defined inside a namespace. In the program.cs file, make sure that you have added using <namespace>; at the top. — Øyvind Bråthen
– Øyvind Bråthen, Commented Dec 9, 2010 at 9:57

Oded · Accepted Answer · 2010-12-09 09:57:39Z

3

Check the namespace of your new form and ensure that the application has it as a using directive.

The error means that the application class can't find the MyForm class, either because you didn't add the right assembly reference to the project (which could happen if the form is in another project), or because the form is in a different namespace (which could happen if you put it in another directory).

edited Dec 9, 2010 at 9:57

answered Dec 9, 2010 at 9:51

Oded

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3 Comments

Dark Knight Over a year ago

am really sorry..actually I created one folder and added Form to that...there I dint changed namespace...

Oded Over a year ago

@Sisya - You didn't intentionally, but Visual Studio adds the folder name to the default namespace that gets created when the source file gets added. You can either remove the directory name from the namespace of MyForm, or add the namespace to the application directory. Any what are you being sorry about?

Ran Over a year ago

That's a bit inaccurate. It's not the application class that can't find MyForm, it's the compiler. The Application class won't be looking for anything until Sisya manages to reach runtime...

Richard Friend · Accepted Answer · 2010-12-09 09:55:23Z

Providing that MyForm is a form located somewhere in your project or referenced then hover over MyForm() and press shift + alt + f10 , this should allow you to resolve the namespace :-)

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