How to export a GridView data into .csv file in asp.net

i have a issue while exporting Gridview data into .csv file.I have followed a link to export This link i have follow please chec开发者_Python百科k it. When I run the application it creates just header names, remaining body fields always show null values. Please help me how to export GridView data into .csv file

---

Maybe your GridView use the template fields, and your property «.Text» is always null.

Suggestion: Put a break-point just in «sw.Write(dr.Cells[i].Text);» and check your Cells[i] object. Search for the property you want to put in the file. Probably you will need to do some cast to catch the right value you want.

Ex.: sw.Write(((TextBox)dr.Cells[i].Controls[0]).Text);

Hope this helps.