Static function

[csharpula csharp]

Hello,
I am parsing some main arguments and calling to functions according to
it. Is it possible not to define the called functions as static? How can
I design it better?
Thanks

 

[ian.kemp]

You can create a helper class containing those methods, then
instantiate the helper class in the main() method, e.g.

public class Program {
public static void Main(string[] args) {
ArgumentHandler handler = new ArgumentHandler(args);
}
}

public class ArgumentHandler {
public ArgumentHandler(string[] args) {
ProcessArgs(args);
}

private void ProcessArgs(string[] args) {
// do something with the command-line arguments
}
}

 

[Christof Nordiek]

Hi csharpula,

why do you think, the function shouldn't be static. Your post is very
unclear about, what you want to acomplish. Maybe a static method is simply
the best solution in your case.

 

[Hooyoo]

Main is a static function, so the function called by Main should be
statis. It's very clear.

 

[Jon Skeet [C# MVP]]

Main is a static function, so the function called by Main should be
statis. It's very clear.

Not really - it's perfectly possible to call non-static methods from
Main; you just need to create an instance of something on which to call
the instance method. For example:

using System;

class Counter
{
int limit;

Counter (int limit)
{
this.limit = limit;
}

void Start()
{
for (int i=0; i < limit; i++)
{
Console.WriteLine (i);
}
}

static void Main(string[] args)
{
Counter counter = new Counter(int.Parse(args[0]));
counter.Start();
}
}

 

[Hooyoo]

Aha, I knew that. I mean Main call some functions not some methods of
a object, that is the question.

Main is a static function, so the function called by Main should be
statis. It's very clear.

Not really - it's perfectly possible to call non-static methods from
Main; you just need to create an instance of something on which to call
the instance method. For example:

using System;

class Counter
{
int limit;

Counter (int limit)
{
this.limit = limit;
}

void Start()
{
for (int i=0; i < limit; i++)
{
Console.WriteLine (i);
}
}

static void Main(string[] args)
{
Counter counter = new Counter(int.Parse(args[0]));
counter.Start();
}
}

 

[Jon Skeet [C# MVP]]

Aha, I knew that. I mean Main call some functions not some methods of
a object, that is the question.

Well, I had assumed that "function" was being used as a synonym for
"method" seeing as Main is a static *method* and there's no such thing
as a "function" in C#.

 

[Hooyoo]

You misunderstood me, see the following snippet:
using System;


class Counter
{
int limit;


Counter (int limit)
{
this.limit = limit;
}


void Start()
{
for (int i=0; i < limit; i++)
{
Console.WriteLine (i);
}
}


static void Main(string[] args)
{
/*Start menthod is non-static method, so you cannot write like
this:
Start();
so some smart guys will write like this right way:
*/
Counter counter = new Counter(int.Parse(args[0]));
counter.Start(); //You cannot call
//* Like passing "this" pointer to static member functions in
c++
}

}

 

[Otis Mukinfus]

You misunderstood me, see the following snippet:
using System;

{snip}

Despite what you say, Jon is correct. There are no "functions" in C#. Only
methods.
Good luck with your project,

Otis Mukinfus
http://www.arltex.com
http://www.tomchilders.com