Passing array through multiple functions

[fastfingers]

I am having some trouble figuring out exactly how to do this, here is an example,

public static String[] myArray = new String[40];

private void tbSomeInfo_TextChanged(object sender, EventArgs e)
        {
            StepNumber1 sn1 = new StepNumber1();
            sn1.DoSomething(ref myArray);
        }

public class StepNumber1
{
        public void DoSomething(ref myArray)
{
        int start = 3;
        int TempStart = 6;

        CallPrivateFunction(ref myArray, start, tempStart);
}

        private void CallPrivateFunction(ref myArray, int start, int tempStart)
{
        String[] tempArray = myArray[start].split(','); // This line buggers up
}
}

I keep getting Object reference not set to an instance of an object error. Properties seems to be the way to go but since im still learning c# i would like to know why exactly this does not work, ty.

I have learned the error, I was trying to split a null line, case closed.

[kvprajapati]

Great! Did you compiled this code?

Array is reference type so you could avoid ref declaration.

However below declaration create 40 reference variables which are initilized with null.

public static String[] myArray = new String[40];

So you got an error - Object reference not set to an instance of an object error. Replace split with Split.

String[] tempArray = myArray[start].split(','); // This line buggers up

Parameter missing type name.

public void DoSomething(ref string []myArray){
        int start = 3;
        int tempStart = 6;
        CallPrivateFunction(ref myArray, start, tempStart);
}
private void CallPrivateFunction(ref string []myArray, int start, int tempStart)
{
        String[] tempArray = myArray[start].split(','); // This line buggers up
}