ASP.NET  

Point and FastPoint Charts in ASP.Net

Background

ASP.Net Chart is a powerful control that creates interactive charts. Today we will discuss the Point and FastPoint charts of ASP.Net. So let us start to learn about these chart type controls step-by-step.

Now let us learn about the properties of the Point and FastPoint charts:

  • AlternetText: Sets the alternate text when the image is not available.

  • Annotation: Stores the chart annotations.

  • AntiAliasing: Sets a value that determines whether anti-aliasing is used when text and graphics are drawn.

  • BackGradientStyle: Sets the orientation for the background gradient for the Chart control. Also determines whether a gradient is used, the default is None.
  • Backcolor: Sets the background color for a chart, the default color is White.

  • BackImage: Sets the background image for the chart control.

  • BackHatchStyle: Sets the hatching style for the chart control, the default is None.

  • Height: Sets the height for the chart control.

  • Width: Sets the width for the chart control.

  • Palette: Sets the style with the color for the chart control, the default style is Chocolate.

  • PaletteCustomColors: Sets the custom color for the chart control.

  • Series: Sets the series collection for the chart control.

  • Legends: Sets the series of legends to the chart.
Now let us show the preceding explanation with a practical example by creating a simple web application.

Step 1

Use the following script to create and insert data into the table for the chart:
  1. SET ANSI_NULLS ON      
  2. GO      
  3. SET QUOTED_IDENTIFIER ON      
  4. GO      
  5. SET ANSI_PADDING ON      
  6. GO      
  7. CREATE TABLE [dbo].[orderdet](      
  8.     [id] [int] IDENTITY(1,1) NOT NULL,      
  9.     [Month] [varchar](50) NULL,      
  10.     [Orders] [int] NULL,      
  11.  CONSTRAINT [PK_Order Table] PRIMARY KEY CLUSTERED       
  12. (      
  13.     [id] ASC      
  14. )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]      
  15. ) ON [PRIMARY]      
  16.       
  17. GO      
  18. SET ANSI_PADDING OFF      
  19. GO      
  20. SET IDENTITY_INSERT [dbo].[orderdet] ON       
  21.       
  22. GO      
  23. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (1, N'Jan', 0)      
  24. GO      
  25. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (2, N'Feb', 5)      
  26. GO      
  27. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (3, N'March', 20)      
  28. GO      
  29. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (4, N'April', 40)      
  30. GO      
  31. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (5, N'May', 15)      
  32. GO      
  33. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (6, N'Jun', 60)      
  34. GO      
  35. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (7, N'July', 75)      
  36. GO      
  37. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (8, N'Aug', 80)      
  38. GO      
  39. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (9, N'Sep', 85)      
  40. GO      
  41. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (10, N'Oct', 100)      
  42. GO      
  43. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (11, N'Nov', 2)      
  44. GO      
  45. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (12, N'Dec', 90)      
  46. GO      
  47. SET IDENTITY_INSERT [dbo].[orderdet] OFF      
  48. Go   
After running the preceding script the records in the table will look as follows:
 
 
Step 2
 
Create a Stored Procedure to fetch the records from the database.
  1. Create procedure [dbo].[GetCharData]      
  2. (      
  3. @id int =null      
  4.       
  5. )      
  6. as      
  7. begin      
  8. Select Month,Orders from Orderdet      
  9. End     
Step 3

Create a Web Application. Create the website with:
  1. "Start" - "All Programs" - "Microsoft Visual Studio 2010".

  2. "File" - "New Project" - "C#" - "Empty Website" (to avoid adding a master page).

  3. Provide the project a name such as "UsingPointAndFastpoint" or another as you wish and specify the location.

  4. Then right-click on the Solution Explorer and select "Add New Item" then select Default.aspx page.

  5. Drag and Drop a Chart control from the ToolBox onto the Default.aspx page.
Now the Default.aspx source code will be as follows:
  1. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>  
  2.   
  3. <%@ Register Assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"  
  4.     Namespace="System.Web.UI.DataVisualization.Charting" TagPrefix="asp" %>  
  5. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
  6. <html xmlns="http://www.w3.org/1999/xhtml">  
  7. <head runat="server">  
  8.     <title>Article by Vithal Wadje</title>  
  9. </head>  
  10. <body bgcolor="blue">  
  11.     <form id="form1" runat="server">  
  12.     <h4 style="color: White;">  
  13.         Article for C#Corner  
  14.     </h4>  
  15.     <asp:Chart ID="Chart1" runat="server" BackColor="128, 64, 0" BackGradientStyle="LeftRight"  
  16.         BorderlineWidth="0" Height="340px" Palette="None" PaletteCustomColors="Red"  
  17.         Width="360px" BorderlineColor="192, 64, 0">  
  18.         <Series>  
  19.             <asp:Series Name="Series1"  YValuesPerPoint="6">  
  20.             </asp:Series>  
  21.         </Series>  
  22.         <ChartAreas>  
  23.             <asp:ChartArea Name="ChartArea1">  
  24.             </asp:ChartArea>  
  25.         </ChartAreas>  
  26.     </asp:Chart>  
  27.     </form>  
  28. </body>  
  29. </html> 
Step 4
 
Create a method to bind the chart control. Now, open the default.aspx.cs page and create the following function named Bindchart to bind the Chart Control as in the following:   
  1. private void Bindchart()      
  2. {      
  3.     connection();      
  4.     com = new SqlCommand("GetCharData", con);      
  5.     com.CommandType = CommandType.StoredProcedure;      
  6.     SqlDataAdapter da = new SqlDataAdapter(com);      
  7.     DataSet ds = new DataSet();      
  8.     da.Fill(ds);    
  9.     DataTable ChartData=ds.Tables[0];    
  10.     //storing total rows count to loop on each Record      
  11.     string[] XPointMember = new string[ChartData.Rows.Count];      
  12.     int[] YPointMember = new int[ChartData.Rows.Count];      
  13.     for (int count = 0; count < ChartData.Rows.Count;count++ )      
  14.     {      
  15.         //storing Values for X axis      
  16.         XPointMember[count] = ChartData.Rows[count]["Month"].ToString();      
  17.         //storing values for Y Axis      
  18.         YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["Orders"]);      
  19.     }      
  20.     //binding chart control      
  21.     Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);    
  22.     //Setting width of line      
  23.     Chart1.Series[0].BorderWidth =20;      
  24.     //setting Chart type       
  25.     Chart1.Series[0].ChartType = SeriesChartType.Point ;      
  26.     //Chart1.Series[0].ChartType = SeriesChartType.FastPoint;    
  27.     //Hide or show chart back GridLines      
  28.     //Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;      
  29.     //Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false;    
  30.     //Enabled 3D      
  31.     //Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;       
  32.     con.Close();    
  33. } 
Now, call the preceding function on page load as in the following:
  1. protected void Page_Load(object sender, EventArgs e)  
  2. {  
  3.     if (!IsPostBack)  
  4.     {  
  5.         Bindchart();  
  6.   
  7.     }  
  8. } 
The entire code of the default.aspx.cs page will look as follows: 
  1. using System;  
  2. using System.Collections.Generic;  
  3. using System.Linq;  
  4. using System.Web;  
  5. using System.Web.UI;  
  6. using System.Web.UI.WebControls;  
  7. using System.Data.SqlClient;  
  8. using System.Configuration;  
  9. using System.Data;  
  10. using System.Web.UI.DataVisualization.Charting;  
  11.   
  12. public partial class _Default : System.Web.UI.Page  
  13. {  
  14.     private SqlConnection con;  
  15.     private SqlCommand com;  
  16.     private string constr, query;  
  17.     private void connection()  
  18.     {  
  19.         constr = ConfigurationManager.ConnectionStrings["getconn"].ToString();  
  20.         con = new SqlConnection(constr);  
  21.         con.Open();  
  22.   
  23.     }  
  24.     protected void Page_Load(object sender, EventArgs e)  
  25.     {  
  26.         if (!IsPostBack)  
  27.         {  
  28.             Bindchart();  
  29.   
  30.         }  
  31.     }      
  32.     private void Bindchart()  
  33.     {  
  34.         connection();  
  35.         com = new SqlCommand("GetCharData", con);  
  36.         com.CommandType = CommandType.StoredProcedure;  
  37.         SqlDataAdapter da = new SqlDataAdapter(com);  
  38.         DataSet ds = new DataSet();  
  39.         da.Fill(ds);  
  40.        
  41.         DataTable ChartData=ds.Tables[0];  
  42.   
  43.         //storing total rows count to loop on each Record  
  44.         string[] XPointMember = new string[ChartData.Rows.Count];  
  45.         int[] YPointMember = new int[ChartData.Rows.Count];  
  46.   
  47.         for (int count = 0; count < ChartData.Rows.Count;count++ )  
  48.         {  
  49.             //storing Values for X axis  
  50.             XPointMember[count] = ChartData.Rows[count]["Month"].ToString();  
  51.             //storing values for Y Axis  
  52.             YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["Orders"]);  
  53.         }  
  54.         //binding chart control  
  55.         Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);  
  56.   
  57.         //Setting width of line  
  58.         Chart1.Series[0].BorderWidth =20;  
  59.         //setting Chart type   
  60.         Chart1.Series[0].ChartType = SeriesChartType.Point ;  
  61.         //Chart1.Series[0].ChartType = SeriesChartType.FastPoint;  
  62.   
  63.         //Hide or show chart back GridLines  
  64.         //Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;  
  65.         //Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false;  
  66.    
  67.         //Enabled 3D  
  68.         //Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;   
  69.         con.Close();  
  70.   
  71.     }  
  72. } 
Now, we have the entire logic to bind the chart from the database, let us run the application. The Point Chart will look as follows: 
 
 
Now let us hide the Grid Lines as in the following: 
  1. //Hide or show chart back GridLines  
  2. Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;  
  3. Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false; 
Now the point chart will be as follows:
 
 
The preceding is the Normal Point chart. Now let us enable the 3D style as in the following:
  1. //Enabled 3D  
  2.  Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true; 
Now the 3D style point chart will be as:
 
 
Now let us switch to a FastPoint chart as in the following: 
  1. //setting Chart type   
  2. Chart1.Series[0].ChartType = SeriesChartType.FastPoint; 
Now run the application. The FastPoint chart will look such as follows: 
 
 
Now let us hide the Grid Lines as in the following:
  1. //Hide or show chart back GridLines  
  2. Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;  
  3. Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false; 
Now the FastPoint chart will look such as follows:
 
 
The preceding is the Normal FastPoint chart. Now let us enable the 3D style as in the following:
  1. //Enabled 3D  
  2.  Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true; 
Now the 3D style FastPoint chart will look such as:
 
 
Now from all the preceding explanations we saw how to create and use Point and FastPoint charts.

Notes
  • Download the Zip file from the attachment for the full source code of the application.

  • Change the connection string in the web.config file to specify your server location.
Summary

My next article explains another chart type of ASP.Net. I hope this article is useful for all readers, if you have any suggestion then please contact me including beginners also.

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