A Practical Use of the MVC Pattern

using System;
using System.Data;
using System.Drawing;
using MvcExample.Models;
using ZedGraph;

namespace MvcExample.Views
{
	public class View_Graph_Income : BaseView
	{
		#region Data members
		protected GraphPane graphPane;
		#endregion Data members

		#region Windows Form Designer generated code
		private ZedGraph.ZedGraphControl zedGraph;

		private System.ComponentModel.Container components = null;

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose(bool disposing)
		{
			if (disposing)
			{
				if (components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose(disposing);
		}

		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.zedGraph = new ZedGraph.ZedGraphControl();
			this.SuspendLayout();
			// 
			// butClose
			// 
			this.butClose.Location = new System.Drawing.Point(600, 392);
			this.butClose.Name = "butClose";
			// 
			// progressBar
			// 
			this.progressBar.Location = new System.Drawing.Point(8, 400);
			this.progressBar.Name = "progressBar";
			this.progressBar.Size = new System.Drawing.Size(584, 16);
			// 
			// zedGraph
			// 
			this.zedGraph.Anchor = ((System.Windows.Forms.AnchorStyles) ((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
				| System.Windows.Forms.AnchorStyles.Left)
				| System.Windows.Forms.AnchorStyles.Right)));
			this.zedGraph.Location = new System.Drawing.Point(8, 8);
			this.zedGraph.Name = "zedGraph";
			this.zedGraph.ScrollMaxX = 0;
			this.zedGraph.ScrollMaxY = 0;
			this.zedGraph.ScrollMaxY2 = 0;
			this.zedGraph.ScrollMinX = 0;
			this.zedGraph.ScrollMinY = 0;
			this.zedGraph.ScrollMinY2 = 0;
			this.zedGraph.Size = new System.Drawing.Size(672, 376);
			this.zedGraph.TabIndex = 2;
			// 
			// View_Graph_Income
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(688, 427);
			this.Controls.Add(this.zedGraph);
			this.Name = "View_Graph_Income";
			this.Text = "Graphical representation of test data";
			this.Controls.SetChildIndex(this.progressBar, 0);
			this.Controls.SetChildIndex(this.zedGraph, 0);
			this.Controls.SetChildIndex(this.butClose, 0);
			this.ResumeLayout(false);

		}
		#endregion

		#region constructor
		public View_Graph_Income()
		{
			InitializeComponent();

			graphPane = zedGraph.GraphPane;

			// graph titles
			graphPane.Title.Text = "MVC example";
			graphPane.XAxis.Title.Text = "years";
			graphPane.YAxis.Title.Text = "income";
		}
		#endregion constructor

		#region overriden methods
		protected override void ContinueUpdateView(ref DataSet ds)
		{
			if (ds.Tables.Count > 0)
			{
				string colYear = EnumIncome.Year.ToString();
				string colIncome = EnumIncome.Income.ToString();
				PointPairList points = new PointPairList();

				for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
				{
					DataRow row = ds.Tables[0].Rows[i];
					points.Add(
						Convert.ToDouble(row[colYear]),
						Convert.ToDouble(row[colIncome]));
				}

				LineItem myCurve = graphPane.AddCurve("example",
				                                      points, Color.Red, SymbolType.Diamond);

				// disable legend
				graphPane.Legend.IsVisible = false;

				zedGraph.AxisChange();
				zedGraph.Invalidate();
			} // if
		}
		#endregion overriden methods
	}
}