Export Data from Database to An Existing Excel Sheet asp.net

Question

I have an Template Folder in which i have an Excel Sheet. I want to extract data from database and export it to Excel Sheet. Every time i click Export a copy of the Excel sheet in Template folder should be made and the data should be exported to the copy of the excel sheet and the sheet with data should get downloaded. Can this be done in C# ASP.Net Web Application ??

Kiran Girase · Answer

Hi Ayush, Firstly you get your data from the database into grid view using collection on the web page, then you can add button on web page 'btnExport'. After that, you can add below code into your backend page.cs. protected void btnExportGrid_Click(object sender, EventArgs e) { ExportGridToExcel(); } private void ExportGridToExcel() { Response.Clear(); Response.Buffer = true; Response.ClearContent(); Response.ClearHeaders(); Response.Charset = ""; string FileName = "yourFileName" + DateTime.Now + ".xls"; StringWriter strwritter = new StringWriter(); HtmlTextWriter htmltextwrtter = new HtmlTextWriter(strwritter); Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.ContentType = "application/vnd.ms-excel"; Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName); Gridview1.GridLines = GridLines.Both; Gridview1.HeaderStyle.Font.Bold = true; Gridview1.RenderControl(htmltextwrtter); Response.Write(strwritter.ToString()); Response.End(); } public override void VerifyRenderingInServerForm(Control control) { /* Verifies that the control is rendered */ } your Excel file is downloaded after clicking on the Export button. Thank you!