Access Modifiers

[Roy Gourgi]

Hi,

Is it possible to declare a variable or array in the class that is
accessible to all the methods in the class? For the example below, I would
like to make the variable lnVar1 accessible to both methods m1 and m2 but I
am getting an error. Is there another way to do this?

Thanks
Roy


using System;

using System.Collections.Generic;

using System.Text;

namespace cClasses

{

class Program

{

static void Main(string[] args)

{

AA2.m1();

}

}

}







public class AA2

{

protected int lnVar1 = 0;

public static void m1()

{

Console.Write("M1 {0}", lnVar1);

}

public static void m2()

{

Console.Write("M2 {0}", lnVar1);

}

}

 

[Markus Stoeger]

Hi,

Is it possible to declare a variable or array in the class that is
accessible to all the methods in the class? For the example below, I would
like to make the variable lnVar1 accessible to both methods m1 and m2 but I
am getting an error. Is there another way to do this?

Problem with your code is that the functions are "static" but the
variable is not.

Depending on what better fits the design.. either make the variable
static too, or remove the static keyword from the functions and create
an instance of the AA2 class before calling m1.

hth,
Max

 

[Jerry Walter]

Check your different scope parameters. You have made your vaiable
'protected' in the scope of one class.

Also look at the different accessor types (get, set, etc.). That may be of
assistance also.

J

 

[Jim Holmes]

Static members can only operate on other static members, not nonstatic/instance
members. Change your class member lnVar1 from protected to a static and
it works just fine.

 

[Roy Gourgi]

Thanks Max!

Roy

 

[rossum]

Hi,

Is it possible to declare a variable or array in the class that is
accessible to all the methods in the class? Yes.

For the example below, I would
like to make the variable lnVar1 accessible to both methods m1 and m2 but I
am getting an error. Is there another way to do this?

Both m1 and m2 are static so they can only access static data. lnVar1
is not declared static and hence cannot be accessed by your static
methods. Either make lnVar1 static or remove the static modifiers
from m1 and m2.

Not relevant to your question, but it is better to make class data
like lnVar1 private and to provide a public or protected property to
get at it. With protected data any derived class can do all sorts of
nasties to the data.

rossum

Thanks
Roy


using System;
using System.Collections.Generic;
using System.Text;

namespace cClasses
{
class Program
{
static void Main(string[] args)
{
AA2.m1();
}
}
}


public class AA2
{
protected int lnVar1 = 0;
public static void m1()
{
Console.Write("M1 {0}", lnVar1);
}

public static void m2()
{
Console.Write("M2 {0}", lnVar1);
}
}

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