Charting in .NET 4

using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting ;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            comboBoxChartType.DataSource = System.Enum.GetValues(typeof(SeriesChartType));
            
        }


        /// <summary>
        /// Validate the user input for integer.
        /// </summary>
        /// <returns>True if all the user input contains number.</returns>
        private bool DataPointOK()
        {
            int result = 0;
            if (Int32.TryParse(txtX1.Text.Trim(), out result) ||
                Int32.TryParse(txtX2.Text.Trim(), out result) ||
                Int32.TryParse(txtX3.Text.Trim(), out result) ||
                Int32.TryParse(txtX4.Text.Trim(), out result) ||
                Int32.TryParse(txtX5.Text.Trim(), out result) ||
                Int32.TryParse(txtY1.Text.Trim(), out result) ||
                Int32.TryParse(txtY2.Text.Trim(), out result) ||
                Int32.TryParse(txtY3.Text.Trim(), out result) ||
                Int32.TryParse(txtY4.Text.Trim(), out result) ||
                Int32.TryParse(txtY5.Text.Trim(), out result))
            {
                return true;
            }

            MessageBox.Show("Enter only numbers for DataPoints");
            return false;
        }

        private void btnPlotChart_Click(object sender, EventArgs e)
        {
            DynamicChart.Series["UserDataSeries"].Points.Clear();
            DynamicChart.Series["UserDataSeries"].ChartType = (SeriesChartType)comboBoxChartType.SelectedItem;

            if (DataPointOK())
            {
                DynamicChart.Series["UserDataSeries"].Points.Add(new DataPoint(Convert.ToInt32(txtX1.Text), Convert.ToInt32(txtY1.Text)));
                DynamicChart.Series["UserDataSeries"].Points.Add(new DataPoint(Convert.ToInt32(txtX2.Text), Convert.ToInt32(txtY2.Text)));
                DynamicChart.Series["UserDataSeries"].Points.Add(new DataPoint(Convert.ToInt32(txtX3.Text), Convert.ToInt32(txtY3.Text)));
                DynamicChart.Series["UserDataSeries"].Points.Add(new DataPoint(Convert.ToInt32(txtX4.Text), Convert.ToInt32(txtY4.Text)));
                DynamicChart.Series["UserDataSeries"].Points.Add(new DataPoint(Convert.ToInt32(txtX5.Text), Convert.ToInt32(txtY5.Text)));

            }
        }
    }
}