Milena Velba Screensaver

Export a Gridview to Excel

To view or save the contents of a gridview in an excel document, we will use a button click event which will implement export.

Although our gridview has paging export all registros.

protected void Button1_Click(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
HtmlTextWriter htw = new HtmlTextWriter(sw);

Page page = new Page();
HtmlForm form = new HtmlForm();

GridView1.EnableViewState = false;
GridView1.AllowPaging = false;
GridView1.DataBind();
page.EnableEventValidation = false;

page.DesignerInitialize();

page.Controls.Add(form);
form.Controls.Add(GridView1);

page.RenderControl(htw);

Response.Clear();
Response.Buffer = true;
Response.ContentType = "application / ms-excel";
Response.AddHeader ("Content-Disposition", "attachment; filename = nombreDocumento.xls");
Response.Charset = "UTF-8 "

Response.Cache.SetCacheability (HttpCacheability.NoCache)
Response.ContentEncoding = System.Text.Encoding.Default;
Response.Write (sb.ToString ());
Response.End ();}