Kagi Type Chart In ASP.Net

Background

The ASP.Net Chart is a powerful control that creates interactive charts. Today we will discuss the Kagi type chart 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 Kagi charts. A Kagi chart type has the following common properties:

  • 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 a table for the chart data:
  1. CREATE TABLE [dbo].[orderdet](      
  2.     [id] [int] IDENTITY(1,1) NOT NULL,      
  3.     [Month] [varchar](50) NULL,      
  4.     [Orders] [intNULL,      
  5.  CONSTRAINT [PK_Order TablePRIMARY KEY CLUSTERED       
  6. (      
  7.     [id] ASC      
  8. )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ONON [PRIMARY]      
  9. ON [PRIMARY]      
  10.       
Now the design will look as follows:
 
 
 
Now insert the records using the following script:
  1. SET IDENTITY_INSERT [dbo].[orderdet] ON       
  2.       
  3. GO      
  4. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (1, N'Jan', 0)      
  5. GO      
  6. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (2, N'Feb', 5)      
  7. GO      
  8. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (3, N'March', 20)      
  9. GO      
  10. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (4, N'April', 40)      
  11. GO      
  12. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (5, N'May', 15)      
  13. GO      
  14. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (6, N'Jun', 60)      
  15. GO      
  16. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (7, N'July', 75)      
  17. GO      
  18. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (8, N'Aug', 80)      
  19. GO      
  20. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (9, N'Sep', 85)      
  21. GO      
  22. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (10, N'Oct', 100)      
  23. GO      
  24. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (11, N'Nov', 2)      
  25. GO      
  26. INSERT [dbo].[orderdet] ([id], [Month], [Orders]) VALUES (12, N'Dec', 90)      
  27. GO      
  28. SET IDENTITY_INSERT [dbo].[orderdet] OFF      
  29. 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 "UsingKagiChart" 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="64, 0, 64"  
  17.         Width="360px" BorderlineColor="192, 64, 0" BackHatchStyle="Percent10">  
  18.         <Series>  
  19.             <asp:Series Name="Series1"  YValuesPerPoint="1">  
  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.   
  10.         DataTable ChartData = ds.Tables[0];  
  11.   
  12.         //storing total rows count to loop on each Record  
  13.         string[] XPointMember = new string[ChartData.Rows.Count];  
  14.         int[] YPointMember = new int[ChartData.Rows.Count];  
  15.   
  16.         for (int count = 0; count < ChartData.Rows.Count; count++)  
  17.         {  
  18.             //storing Values for X axis  
  19.             XPointMember[count] = ChartData.Rows[count]["Month"].ToString();  
  20.             //storing values for Y Axis  
  21.             YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["Orders"]);  
  22.  
  23.         }  
  24.         //binding chart control  
  25.         Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);  
  26.   
  27.         //Setting width of line  
  28.         Chart1.Series[0].BorderWidth = 4;  
  29.         //setting Chart type   
  30.       Chart1.Series[0].ChartType = SeriesChartType.Kagi;  
  31.        
  32.        
  33.         //Hide or show chart back GridLines  
  34.   //  Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;  
  35.     //Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false;  
  36.   
  37.         //Enabled 3D  
  38.        // Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;  
  39.         con.Close();  
  40.   
  41.     } 
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.   
  33.   
  34.     private void Bindchart()  
  35.     {  
  36.         connection();  
  37.         com = new SqlCommand("GetCharData", con);  
  38.         com.CommandType = CommandType.StoredProcedure;  
  39.         SqlDataAdapter da = new SqlDataAdapter(com);  
  40.         DataSet ds = new DataSet();  
  41.         da.Fill(ds);  
  42.   
  43.         DataTable ChartData = ds.Tables[0];  
  44.   
  45.         //storing total rows count to loop on each Record  
  46.         string[] XPointMember = new string[ChartData.Rows.Count];  
  47.         int[] YPointMember = new int[ChartData.Rows.Count];  
  48.   
  49.         for (int count = 0; count < ChartData.Rows.Count; count++)  
  50.         {  
  51.             //storing Values for X axis  
  52.             XPointMember[count] = ChartData.Rows[count]["Month"].ToString();  
  53.             //storing values for Y Axis  
  54.             YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["Orders"]);  
  55.   
  56.   
  57.         }  
  58.         //binding chart control  
  59.         Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);  
  60.   
  61.         //Setting width of line  
  62.         Chart1.Series[0].BorderWidth = 4;  
  63.         //setting Chart type   
  64.       Chart1.Series[0].ChartType = SeriesChartType.Kagi;  
  65.     
  66.         //Hide or show chart back GridLines  
  67.   //  Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;  
  68.     //Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false;  
  69.   
  70.         //Enabled 3D  
  71.        // Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;  
  72.         con.Close();  
  73.   
  74.     }  

Now, we have the entire logic to bind the chart from the database, let us run the application, then the Kagi 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 Kagi chart will be as follows:
 
 
Now let us limit the Border width as compared to the preceding:
  1. //Setting width of line  
  2.  Chart1.Series[0].BorderWidth = 4; 
Now Kagi chart will look as follows:
 
 
 
The preceding is the Normal Kagi 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 Kagi chart will be as: 
 
 
 
Now change the BackHatchStyle,then the chart will look as follows:
 
 
 
Now from all the preceding explanations we saw how to create and use a Kagi chart.

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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