Multimain in c#

Question

2.00/5 (2 votes)

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When i use multimain in c# it returns following error in compile time.

error CS2001: Source file 'Multimain.cs/main:ClassA' could not be found
fatal error CS2008: No inputs specified

and this is my code

using System;
class ClassA
{
     public static void Main()
     {
        Console.WriteLine(Class A);
     }
}
class ClassB
{
     public static void Main()
     {
        Console.WriteLine(Class B);
     }
}

[Edit]Code is wrapped in "pre" tags[/Edit]

Posted 6-Jan-11 1:01am

sayam2

Updated 7-Jan-11 0:48am

RaviRanjanKr

v3

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Comments

Venkatesh Mookkan 6-Jan-11 7:02am

Post you Multimain.cs code.

Hiren solanki 6-Jan-11 7:07am

can you please show us how you're defining multimain.

#realJSOP 6-Jan-11 7:35am

See my response to your earlier question about multiple main methdos.

4 solutions

Solution 2

I've found only this:

http://www.dotnetspider.com/resources/22284-Multiple-Main-Methods-C.aspx[^]. (Warning! Don't use as is!)

Even though this is a valid code, it will not compile with default project properties. So, this contribution is practically gibberish, because if does not explain anything.

But I will explain. You can right the code like that, but you also need to go to Solution Explorer -> [your project] -> [context menu] -> Application Tab -> Start up object -> from this combo box, select a class with static method you want to use as an entry point.

Still, your idea in unclear. Did you hope to compile the same application with more then one entry point at the same time and decide which one to run later? This is impossible, period. More importantly, this is a bad idea. I credit here opinion of John Simmons / outlaw programmer. Please see again his answer to your first question. I completely agree with him.

Posted 6-Jan-11 7:44am

Sergey Alexandrovich Kryukov

Updated 6-Jan-11 8:02am

v6

Solution 3

There[^] is same question in CP forum with solutions.

Posted 7-Jan-11 0:57am

RaviRanjanKr

Solution 1

STAThread is tells that your program entry point..

C#

[STAThread]
static void Main()

Posted 6-Jan-11 1:36am

Rajesh Anuhya

Comments

Sergey Alexandrovich Kryukov 6-Jan-11 13:36pm

Rajesh, Sorry, this is completely wrong. This attribute said what is the Thread Apartment state to set. What's the entry point is defined in the project file. With all my respect -- shame on you. Nobody should give an advice based on a guess. At list you could have said "if I'm not mistaken"...

That's why somebody voted "2".

jerrykid 7-Jan-11 5:26am

:)

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Richard MacCutchan · Accepted Answer · 2011-01-07T01:15:00

Solution 4

The link with the sample is not quite correct, the /main string is a compiler option and needs to be separated from the program file name thus:

csc /main:ClassA Multimain.cs

// or

csc Multimain.cs /main:ClassA

See also here[^] for more information.

[edit]Added MSDN link[/edit]

Posted 7-Jan-11 1:15am

Richard MacCutchan

Updated 7-Jan-11 1:17am

v2