ASP. NET Server-Side Charting With OWC11 -- pie chart

What we are doing today is ASP. NET pie report. previously, I wanted to use the MSChart control that comes with VS to draw data, but it was not very convenient to use MSChart (in the Project). However, there are examples of MSChart painting. I hope you can give me some advice. This is why I found a better plug-in for creating a pie chart: OWC. You can download the plug-in from http://www.codeproject.com/kb/aspnet/owc11article.aspx. (try again. If Office version 2003 is installed on the PC, you must install this plug-in ).

Okay, no worries. paste the key source code directly:

Public void CreatePinReport ()
{
// Delete the generated file before creation
String deleteFileName = "stat.gif"; // name of the file to be deleted
Try
{
String [] rootDirs = Directory. GetDirectories ("http://images.cnblogs.com/"); // subdirectory of the current Directory:
String [] rootFiles = Directory. GetFiles ("http://images.cnblogs.com/"); // files in the current Directory:

Foreach (string s2 in rootFiles)
{
If (s2.Contains (deleteFileName ))
{
Console. WriteLine (s2 );
File. Delete (s2); // Delete an object
}
}
}
Catch (Exception)
{

}






// Create an X coordinate value, indicating the month

String [] month = GetNop_DictionaryWineType ();
// Create the Y coordinate value to indicate the sales volume
List <double> list = new List <double> ();

For (int I = 0; I <GetNop_DictionaryValueWineType (). Length; I ++)
{
// Count = GetSumOrderByProductCategoryID (Convert. ToInt32 (GetNop_DictionaryValueWineType () [I]);
List. Add (GetSumOrderByProductCategoryID (Convert. ToInt32 (GetNop_DictionaryValueWineType () [I]);
}
Double [] count = list. ToArray ();
String strDataName = "";
String strData = "";
// Create a chart Space
ChartSpace mychartSpace = new ChartSpace ();
MychartSpace. Border. Color = "White ";
// Add a chart object to the chart Space
ChChart mychart = mychartSpace. Charts. Add (0 );
// Set the data of each pie

For (int I = 0; I <count. Length; I ++)
{
StrDataName + = month [I] + "\ t ";
StrData + = count [I] + "\ t ";
}

// Set the chart type. In this example, use a pie chart.
Mychart. Type = ChartChartTypeEnum. chChartTypePie;
// Set chart attributes
// Do you need a legend?
Mychart. HasLegend = true;
// Whether a topic is required
Mychart. HasTitle = true;
// Subject content
Mychart. Title. Caption = "pie chart test ";
Mychart. Title. Font. Size = 10;
Mychart. Title. Font. Bold = false;
Mychart. Legend. Position = ChartLegendPositionEnum. chLegendPositionBottom;
Mychart. Legend. Interior. Color = "f9f9f9 ";
Mychart. Legend. Font. Size = 9;
Mychart. Legend. Border. Color = "White ";

// Add a chart Block
Mychart. SeriesCollection. Add (0 );
// Set chart block attributes
// Category attributes
Mychart. SeriesCollection [0]. SetData (ChartDimensionsEnum. chDimCategories,
(Int) chartspecialperformancesenum. chDataLiteral, strDataName );
// Value Attribute
Mychart. SeriesCollection [0]. SetData (ChartDimensionsEnum. chDimValues,
(Int) chartspecialperformancesenum. chDataLiteral, strData );
For (int j = 0; j <mychart. SeriesCollection [0]. Points. Count; j ++)
{
Mychart. SeriesCollection [0]. Points [j]. Border. Color = "White ";
}
// Display percentage
ChDataLabels mytb = mychart. SeriesCollection [0]. DataLabelsCollection. Add ();
Mytb. HasPercentage = true;
// Mytb. Border. Color = "White ";
Mytb. HasValue = true;
// Generate an image
MychartSpace. ExportPicture (Server. MapPath ("../images/") + @ "stat.gif", "gif", 700,400 );
// Load the image
This. ig. ImageUrl = "http://images.cnblogs.com/stat.gif ";
}

The following shows the Code:

The code is very simple and has detailed comments. I hope you can give me more advice ..