The Grid Processor: Word Processing Abilities for the .NET DataGridView Component

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


namespace GridProcessorDemo
{
    public partial class Form1 : Form
    {
        private GridProcessor.FormGridProcessor mGridProcessor = null;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            ReadInstructions();
                ReadXmlFile();
        }

        private void button_gridProcessor_Click(object sender, EventArgs e)
        {
            if (mGridProcessor == null)
                mGridProcessor = new GridProcessor.FormGridProcessor(this.dataGridView1);
            mGridProcessor.Show(this);
        }

        void ReadInstructions()
        {
            StreamReader streamReader;
            StringBuilder sbInstructions;
            string textLine;
            string filePath;

            filePath = GridProcessor.Util.GetRootApplicationDirectory();
            if (filePath[filePath.Length - 1] != '\\')
                filePath += "\\";
            filePath += "instructions.txt";

            try
            {
                streamReader = new StreamReader(filePath);
            }
            catch
            {
                MessageBox.Show(this, "Error loading file [instructions.txt]", "GridProcessor Demo", MessageBoxButtons.OK, MessageBoxIcon.Error);
                textBox1.Text = "instructions should have been ... here :-(";
                return;
            }
            sbInstructions = new StringBuilder();
            while ((textLine = streamReader.ReadLine()) != null)
                sbInstructions.AppendLine(textLine);
            streamReader.Close();
            textBox1.Text = sbInstructions.ToString();
        }

        private void ReadXmlFile()
        {
            string filePath;

            filePath = GridProcessor.Util.GetRootApplicationDirectory();
            if (filePath[filePath.Length - 1] != '\\')
                filePath += "\\";
            filePath += "JazzPianists.xml";

            try
            {
                dataSet_tracks.Tables["Track"].ReadXml(filePath);
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, "Error reading XML data file: " + ex.Message, "GridProcessor Demo", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

       }

        private void button_close_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}