How to create Excel Chart from C#
We can create Chart in Excel through C# . The following section shows how to create a Chart in Excel through C# source code .
The following C# source code using Microsoft Excel 12.0 Object Library .In the previous section we saw how to import Microsoft Excel 12.0 Object Library in the C# project .
Before we crating a Chart , we have to fill data in Excel sheet. Here we are filling the data in excel sheet through C# program. After fill the data in your Excel sheet its look like the following picture.
After fill the data , We have to create a chart object in C# and configure the Chart object with necessary data like positions , size , data range , chart type etc..
The following picture shows the excel file after created a chart.
using System;
using System.Windows.Forms;
using Excel = Microsoft.Office.Interop.Excel;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Excel.Application xlApp ;
Excel.Workbook xlWorkBook ;
Excel.Worksheet xlWorkSheet ;
object misValue = System.Reflection.Missing.Value;
xlApp = new Excel.Application();
xlWorkBook = xlApp.Workbooks.Add(misValue);
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
//add data
xlWorkSheet.Cells[1, 1] = "";
xlWorkSheet.Cells[1, 2] = "Student1";
xlWorkSheet.Cells[1, 3] = "Student2";
xlWorkSheet.Cells[1, 4] = "Student3";
xlWorkSheet.Cells[2, 1] = "Term1";
xlWorkSheet.Cells[2, 2] = "80";
xlWorkSheet.Cells[2, 3] = "65";
xlWorkSheet.Cells[2, 4] = "45";
xlWorkSheet.Cells[3, 1] = "Term2";
xlWorkSheet.Cells[3, 2] = "78";
xlWorkSheet.Cells[3, 3] = "72";
xlWorkSheet.Cells[3, 4] = "60";
xlWorkSheet.Cells[4, 1] = "Term3";
xlWorkSheet.Cells[4, 2] = "82";
xlWorkSheet.Cells[4, 3] = "80";
xlWorkSheet.Cells[4, 4] = "65";
xlWorkSheet.Cells[5, 1] = "Term4";
xlWorkSheet.Cells[5, 2] = "75";
xlWorkSheet.Cells[5, 3] = "82";
xlWorkSheet.Cells[5, 4] = "68";
Excel.Range chartRange ;
Excel.ChartObjects xlCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(10, 80, 300, 250);
Excel.Chart chartPage = myChart.Chart;
chartRange = xlWorkSheet.get_Range("A1", "d5");
chartPage.SetSourceData(chartRange, misValue);
chartPage.ChartType = Excel.XlChartType.xlColumnClustered;
xlWorkBook.SaveAs("csharp.net-informations.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
xlWorkBook.Close(true, misValue, misValue);
xlApp.Quit();
releaseObject(xlWorkSheet);
releaseObject(xlWorkBook);
releaseObject(xlApp);
MessageBox.Show("Excel file created , you can find the file c:\\csharp.net-informations.xls");
}
private void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Exception Occured while releasing object " + ex.ToString());
}
finally
{
GC.Collect();
}
}
}
}
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