Dear all,

I'm new to this forum, and fairly new to C#. So I have a lot to learn, and this one is the first real problem for me. I'm building a tool that is getting information from a GUI, does a number of actions on that data and then gives an output back to that GUI. So far the theory.
Now for my problem: I create a class in a separate file, instantiate its object in the program.cs file. Then getting data from the GUI I use the form.cs

I'm using Visual Studio Pro 2010 on Win7 and .NET v4.

Indicator.cs snippet:
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CompatibilityDeterminator
{
    class Indicator
    {
        // Accuracy classes according to OIML R76
        internal enum R76_Class {I, II, III, IIII};
        // Load cell interface definition
        internal enum LC_Interface {FOURWIRE, SIXWIRE};

        private string       Mfr;               // Manufacturer of the indicator
        private string       Type;              // Indicator type designation
...
...
       // Properties concerning general information of the indicator
        public string Manufacturer
        {
            get
            {
                return Mfr;
            }
            set
            {
                Mfr = value;
            }
        }
...
The program.cs file has the following code:
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace CompatibilityDeterminator
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());

            //Initialize all objects needed in the program
            Indicator IndicatorObj = new Indicator();
            LoadCell LoadCellObj = new LoadCell();
            LoadReceptor LoadReceptorObj = new LoadReceptor();
            Instrument InstrumentObj = new Instrument();

        }
    }
}
Haven't come any further than this because of my problem
The form.cs looks like this:
Code:
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 CompatibilityDeterminator
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
...
...
        private void textBox3_TextChanged(object sender, EventArgs e)
        {
            IndicatorObj.Manufacturer = textBox3.Text;
        }
...
...
The IndicatorObj. does not get recognized by VS2010; if I compile it says "The name 'IndicatorObj' does not exist in the current context". I thought that using the namespace mechanism ("namespace CompatibilityDeterminator") would ensure that throughout the project, in all the involved files, the object from the program.cs files would be visible.
What did I miss? I hope my description of the problem is clear? If not then just let me know.

Thanks in advance for any help on the matter,
Martin.