[RESOLVED] Accessing DataTables from Windows Form

[Wild Thing]

Hi, just started playing around with C#, and ran promptly into a problem. So here is -I think - a common newbie question:
Using VS9 and .NET 4.0, I used the designer to construct a solution with a dataset (DataSet1) with DataTables(DataTable1,DataTable2) and a Windows Form (Form1) with Datagridviews for the Tables - no own coding so far. Then I tried to access a Table from Form1, which failed.

DataSet1:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;

namespace CSWF {

    public partial class DataSet1
    {

    }
}

Form1:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


namespace CSWF
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

       
//My attempt to deal with the data tables:     
            try
            {
                 DataTable1.ReadXML("Set1.XML",System.Data.XmlReadMode.Auto);

            }
            catch (System.IO.FileNotFoundException ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
}

How can I enable Form1 to access DataTable1 ?

Thx adv.

[dglienna]

Download the 101 Samples. They have examples for VB.Net as well as C# in VS2008 or VS2010. Get the one that you like

[Wild Thing]

@dglienna: thanks. Just a small correction: the link is VB, C# is http://code.msdn.microsoft.com/cs2008samples
I will look thru that; examples are always helpful.

Anyway, may someone tell me what to do on this?
the error I get is

...: error CS0103: The name 'DataTable1' does not exist in the current context

makes sense, due to the fact that those are different classes. Is there a way to declare them as "friendly class" or "friend assembly" or something like that?
Any hints?

[BigEd781]

A class is a template for an object. Unless the class contains static methods that you want to use you need to create an instance of the class within the scope of your form class. You should find a good beginner's tutorial that explains the basics of how classes and objects work.

[Wild Thing]

OK, BigEd, got me on that. I admit I'm with stupid. Got it running now.

I Love this forum; you always get help.

A word to the youngsters:
Books are those paper things that people used before Google. They were helpful, also their search capabilities were very limited. And don't mind if you get a tap on the head or in the neck by the elders time to time, keeps you down to earth and reminds you that you're not immortal - like in the old days.