Class Library to Automatically Maintain Persistent Variables, Properties and Data Between Sessions

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

namespace ConfigDemo {
	public partial class EmployeeForm : Form {
		public string _name;
		public string _function;
		public int _ID=-1;
		public bool forEdit=false;

		public EmployeeForm()
		{
			InitializeComponent();
		}

		private void buttonOK_Click(object sender, EventArgs e)
		{
			_name=textBoxName.Text;
			_function=textBoxFunction.Text;
			string strID=textBoxID.Text;
			bool bOk=true;

			if ((_name.Length==0 && !forEdit) || _function.Length==0 || strID.Length == 0) {
				MessageBox.Show("All fields must be entered!");
				bOk=false;
			} else {
				try {
					_ID=int.Parse(strID);
				} catch {
					MessageBox.Show("The field Employee ID must be numeric!");
					bOk=false;
				}
			}

			if (bOk){
				DialogResult = DialogResult.OK;
			}
		}

		private void EmployeeForm_Shown(object sender, EventArgs e)
		{
			textBoxName.Text = _name;
			if (forEdit) {
				textBoxName.ReadOnly = true;
			}
			textBoxFunction.Text = _function;
			if (_ID != -1) {
				textBoxID.Text = _ID.ToString();
			}
			if (forEdit) {
				textBoxFunction.Focus();
			} else {
				textBoxName.Focus();
			}
		}
	}
}