My application looks like Figure 1 where you can see I have some data in a DataGridView control on a Windows Forms application. I also have a Button called Export to Excel. When you click Export To Excel button, the application will export DataGridView data to an Excel document.
Figure 1
The Excel document will look like Figure 2.
Figure 2
Before you write code, you must add a reference to the Microsoft Excel object library.
Right click on your project and select Add Reference menu. After that go to COM tab and select and add Microsoft Excel 12.0 object library.
Now here is my Button click event handler where I create Excel object and document, get data from DataGridView and add rows and columns to the document.
Sample Code:
private void button1_Click_1(object sender, EventArgs e)
{
// creating Excel Application
Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
// creating new WorkBook within Excel application
Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
// creating new Excelsheet in workbook
Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
// see the excel sheet behind the program
app.Visible = true;
// get the reference of first sheet. By default its name is Sheet1.
// store its reference to worksheet
worksheet = workbook.Sheets["Sheet1"];
worksheet = workbook.ActiveSheet;
// changing the name of active sheet
worksheet.Name = "Exported from gridview";
// storing header part in Excel
for(int i=1;i<dataGridView1.Columns.Count+1;i++)
{
worksheet.Cells[1, i] = dataGridView1.Columns[i-1].HeaderText;
}
// storing Each row and column value to excel sheet
for (int i=0; i < dataGridView1.Rows.Count-1 ; i++)
{
for(int j=0;j<dataGridView1.Columns.Count;j++)
{
worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();
}
}
// save the application
workbook.SaveAs("c:\\output.xls",Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive , Type.Missing, Type.Missing, Type.Missing, Type.Missing);
// Exit from the application
app.Quit();
}
Note this part of code gets data from DataGridView and fills cells.
// storing Each row and column value to excel sheet
for (int i=0; i < dataGridView1.Rows.Count-1 ; i++)
{
for(int j=0;j<dataGridView1.Columns.Count;j++)
{
worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();
}
}
I have taken dataGridView1.Rows.Count-1, because in datagridview it contains empty row at the last. (See in the figure of datagridview.)
I hope you like this article. Feel free to post questions or comments.