How to pass array list to a function while returning another arraylist[] from that function.

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I'm using the following code:

private sealed class BackgroundWorkState
        {
            public ArrayList[] str { get; set; }
            public ArrayList searchtext_pass { get; set; }
            //public string SomethingElse { get; set; }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            BackgroundWorkState workerState = new BackgroundWorkState
                 {
                     searchtext_pass = ReadMSXls(),
                     str = ReadMsWord(),
                 };
    
    backgroundWorker.RunWorkerAsync(workerState);
        }

I need to pass the searchtext_pass to the function ReadMsWord(), but when I try

str=ReadMsWord(searchtext_pass)

it says searchtext_pass is not available in this context. Please advice.

Posted 16-Oct-14 20:10pm

Tejas Shastri

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Sinisa Hajnal · Accepted Answer · 2014-10-16T20:29:00

Create BackgroundWorkState constructor which takes the parameter. Then in calling
BackgroundWorkState workerState = new BackgroundWorkState set the parameter...

Not clear if ReadMSXLs() and ReadMSWord are class methods or outside sources...but anyhow you set search text in constructor of the background work state (that is you call ReadMSXls before instantiating BackgroundWorkState.

I hope that helps :)

OriginalGriff · Accepted Answer · 2014-10-16T20:24:00

searchtext_pass is a property of the BackgroundWorkState class - so you need an instance of the class in order to access it - just as you need an instance of a car in order to look in the glove box!

So you need something like:

C#

str=ReadMsWord(myInstanceOfABackgroundWorkState.searchtext_pass);

But you can't easily access it because it's a property of the class instance you are trying to construct so it doesn't really exist yet!
Try this:

C#

BackgroundWorkState workerState = new BackgroundWorkState();
workerState.searchtext_pass = ReadMSXls();
workerState.str = ReadMsWord(workerState.searchtext_pass);

How to pass array list to a function while returning another arraylist[] from that function.

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