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I need an opinion again, I have paged datagridview and I need to export data from either desired page or filtered data, that means more pages to excel or csv or whatever, but fast, cause I have many records. I have done with excel in previous of my posts here and it works but it is very slow, how to speed things up

this code works but very very very slow, i fa I need to export say 1000 rows ahhhhh man I can go to dinner , come back and it still isn't finished

Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
app.Visible = true;
worksheet = workbook.Sheets["Sheet1"];
worksheet = workbook.ActiveSheet;
for (int i = 1; i < dg1.Columns.Count + 1; i++)
   worksheet.Cells[1, i] = dg1.Columns[i - 1].HeaderText;
for (int i = 0; i < dg1.Rows.Count - 1; i++)
   for (int j = 0; j < dg1.Columns.Count; j++)
      worksheet.Cells[i + 2, j + 1] = dg1.Rows[i].Cells[j].Value.ToString();

[edit]code block added[/edit]
Posted 17-Nov-12 9:58am
Edited 17-Nov-12 10:05am
Lacy00 at 19-Nov-12 0:06am
If you use Microsoft library, you will get fast reply in msdn forum.

1 solution

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Solution 1

Here is a dataexport library[^] that can export more than 4000 rows to excel, csv, word, pdf, html, xml, MS access, dbf etc. You can give it a try.
Lacy00 at 19-Nov-12 1:04am
thanks for sharing, this project is really useful, especially exporting data.

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