Export selected rows of DataGridView based on checkBx select

Prabhat 7154it

Please edit the code because I am unable to export the selected rows of DataGridView to Excel based on Checkbox selection .The below code export all the rows even those rows are not selected(checked)

private void btnExportToExcel_Click(object sender, EventArgs e)

{

DataGridViewRow row = new DataGridViewRow();

for (int i = 0; i < CategoryGV.Rows.Count; i++)

{

row = CategoryGV.Rows[i];

if (Convert.ToBoolean(row.Cells["chkBox"].Value))

{

int id = Convert.ToInt16(row.Cells["id"].Value);

exportSelectedRowsToExcel();

i--;

}

==========================================================================

public void exportSelectedRowsToExcel()

{

// 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 = DateTime.Now.ToString("yyyyMMddHHmmssfff");

// storing header part in Excel

for (int i = 1; i < CategoryGV.Columns.Count + 1; i++)

{

worksheet.Cells[1, i] = CategoryGV.Columns[i - 1].HeaderText;

}

// storing Each row and column value to excel sheet

for (int i = 0; i < CategoryGV.Rows.Count - 1; i++)

{

for (int j = 0; j < CategoryGV.Columns.Count; j++)

{

worksheet.Cells[i + 2, j + 1] = Convert.ToString(CategoryGV.Rows[i].Cells[j].Value);

}

// save the application

workbook.SaveAs(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\ExportedCategory.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();

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ashutosh Gupta6y ago
1. var rows = new List();
2. for (int i = 0; i < CategoryGV.Rows.Count; i++)
3. {
4. var row = CategoryGV.Rows[i];
5. if (Convert.ToBoolean(row.Cells["chkBox"].Value))
6. {
7. rows.add(row);
8. }
9. }
11. exportSelectedRowsToExcel(rows);
13. // storing Each row and column value to excel sheet
14. foreach (var row in rows)
15. {
16. for (int j = 0; j < CategoryGV.Columns.Count; j++)
17. {
18. worksheet.Cells[row.Index, j + 1] = Convert.ToString(row.Cells[j].Value);
19. }
20. }
i think you have same question in codeproject too. here is my same reply.. this shoud work and improve your code by not ittirating same row all time/
0

Rajanikant Hawaldar6y ago

Hi Prabhat i have modified and commented some LOC(Lines of Code) Please have look, ask me if need futher help.

private void btnExportToExcel_Click(object sender, EventArgs e)
{
if (CategoryGV.RowCount == 0 || CategoryGV.RowCount == -1)//validating
return;// below code will not excute when there is no rows
// DataGridViewRow row = new DataGridViewRow(); //commented here
for (int i = 0; i < CategoryGV.Rows.Count; i++)
{
//row = CategoryGV.Rows[i]; // commented here
if (Convert.ToBoolean(CategoryGV.Rows[i].Cells["chkBox"].Value))
{
//int id = Convert.ToInt16(CategoryGV.Rows[i].Cells["id"].Value); // commented here
exportSelectedRowsToExcel();
//i--; // commented here
}
break; // added
}
}
public void exportSelectedRowsToExcel()
{
// 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 = DateTime.Now.ToString("yyyyMMddHHmmssfff");
// storing header part in Excel
for (int i = 1; i < CategoryGV.Columns.Count + 1; i++)
{
worksheet.Cells[1, i] = CategoryGV.Columns[i - 1].HeaderText;
}
// storing Each row and column value to excel sheet
for (int i = 0; i < CategoryGV.Rows.Count - 1; i++)
{
if (Convert.ToBoolean(CategoryGV.Rows[i].Cells["chkBox"].Value))//modified here
{
// please make sure J value 0 or 1 because checkbox value is 0th column
for (int j = 0; j < CategoryGV.Columns.Count; j++) // modify j value if required
{
worksheet.Cells[i + 2, j + 1] = Convert.ToString(CategoryGV.Rows[i].Cells[j].Value);
}
}
}
// save the application
workbook.SaveAs(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\ExportedCategory.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();
}