C # use Zedgraph to draw a detailed view of the histogram

1. Download Zedgraph control: http://download.csdn.net/detail/allisnew/322251

2. Add Reference ZedGraph.dll

3. Add a regular control on the last side of the toolbox--Browse--Select Zedgraph.dll

4. Write the following initialization code (you can also drag a control directly):

Private Zedgraphcontrol zedGraphControl1 = new Zedgraphcontrol (); This.zedGraphControl1.Location = new System.Drawing.Point (+/-);            This.zedGraphControl1.Name = "ZedGraphControl1";            This.zedGraphControl1.ScrollGrace = 0;            This.zedGraphControl1.ScrollMaxX = 0;            This.zedGraphControl1.ScrollMaxY = 0;            this.zedGraphControl1.ScrollMaxY2 = 0;            This.zedGraphControl1.ScrollMinX = 0;            This.zedGraphControl1.ScrollMinY = 0;            this.zedGraphControl1.ScrollMinY2 = 0;            This.zedGraphControl1.Size = new System.Drawing.Size (427, 247);            This.zedGraphControl1.TabIndex = 0;            This. Controls.Add (ZEDGRAPHCONTROL1);

5. Write the drawing code:

 private void Showchart () {zedGraphControl1.GraphPane.CurveList.Clear ();            ZedGraphControl1.GraphPane.GraphObjList.Clear ();            Clearing not teste graphpane mypane = Zedgraphcontrol1.graphpane;  MyPane.Title.Text = "Consumer education Statistics"; The title of the design chart MyPane.XAxis.Title.Text = "degree type"; X Axis Title MyPane.YAxis.Title.Text = "Number of people";            Y-Axis Title//MyPane.XAxis.Type = ZedGraph.AxisType.Date;            Date wont pointpairlist ppla = new Pointpairlist ();            Pointpairlist PPLB = new Pointpairlist ();            Pointpairlist PPLC = new Pointpairlist ();            Pointpairlist PPLD = new Pointpairlist ();                for (int i = 1; i < 2; i++) {Ppla.add (i, i + 3);                Pplb.add (i + 1, i + 4);                Pplc.add (i + 2, i + 5);            Ppld.add (i + 3, i + 6); }//Dragged drawing baritems out of Forloop BAritem Mybara = Mypane.addbar ("A", Ppla, color.red);            Baritem Mybarb = Mypane.addbar ("B", PPLB, Color.Blue);            Baritem Mybarc = Mypane.addbar ("C", PPLC, Color.gray);            Baritem Mybard = Mypane.addbar ("D", PPLD, Color.Black);            Zedgraphcontrol1.axischange (); Zedgraphcontrol1.refresh ();//This sentence is very important, otherwise it will not be displayed immediately}

If you want to display text in the horizontal axis:

 private void Showchart () {zedGraphControl1.GraphPane.CurveList.Clear ();            ZedGraphControl1.GraphPane.GraphObjList.Clear ();            Clearing not teste graphpane mypane = Zedgraphcontrol1.graphpane;            Drawing Panel Title MyPane.Title.Text = "Income statistics";            Drawing Panel x Title MyPane.XAxis.Title.Text = "Area";            myPane.XAxis.Scale.Min = 0;            Initialize data pointpairlist list = new Pointpairlist ();            Pointpairlist list2 = new Pointpairlist ();            Pointpairlist list3 = new Pointpairlist (); for (int i = 0; i < 5; i++)////The number here is consistent with lable, for example, the horizontal axis shows 5 lable, which will give 5 {list.                ADD (i, i+1); List2.                ADD (i, i + 2); List3.            ADD (i, i + 3);            }//Drawing panel y title MyPane.YAxis.Title.Text = "Sales";            column brushes//Public Baritem Addbar (string name, ipointlist data, color colors); Baritem Mycurve = Mypane.addbar ("Income 1", List, color.blue);            Baritem myCurve1 = Mypane.addbar ("Income 2", List2, Color.purple);            Baritem myCurve2 = Mypane.addbar ("Income 3", LIST3, Color.yellowgreen); MyCurve.Bar.Fill = new Fill (Color.Blue, Color.White, color.blue);//gradient//Baritem myCurve2 = Mypane.addbar ("Buy pesticide           ", List2, color.red);          MyCurve2.Bar.Fill = new Fill (color.red, Color.White, color.red);           Baritem myCurve3 = Mypane.addbar ("Buy fertilizer", List3, Color.green);            MyCurve3.Bar.Fill = new Fill (Color.green, Color.White, Color.green);            MyPane.XAxis.MajorTic.IsBetweenLabels = true;            Xaxis Callout string[] labels = {"Product 1", "Product 2", "Product 3", "Product 4", "Product 5"};            MyPane.XAxis.Scale.TextLabels = labels;            MyPane.XAxis.Type = Axistype.text;            Color outside the plot area//Mypane.fill = new Fill (Color.White, Color.FromArgb (255), 45.0f); Background color//MyPane.Chart.Fill = new Fill (COlor.            Red, Color.lightgoldenrodyellow, 45.0f);            Zedgraphcontrol1.axischange ();        Zedgraphcontrol1.refresh (); }

The above is C # use Zedgraph to draw the detailed content of the histogram, more relevant content please pay attention to topic.alibabacloud.com (www.php.cn)!

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