Export Gridview to excel

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I'm trying to export data from gridview to excel but the spreadsheet comes up empty
Here is part of my code below.

C#

protected void btnExport_Click(object sender, EventArgs e)
        {
            Response.Clear();
            Response.AddHeader("content-disposition", "attachment;filename=Report.xls");
            Response.Charset = "";
            Response.ContentType = "application/vnd.xls";
            StringWriter StringWriter = new System.IO.StringWriter();
            HtmlTextWriter HtmlTextWriter = new HtmlTextWriter(StringWriter);
            GridView1.RenderControl(HtmlTextWriter);
            
            Response.Write(StringWriter.ToString());
            Response.End();
        }
       
        public override void VerifyRenderingInServerForm(Control control)
        {

        }

Posted 20-Aug-12 4:58am

mantel1

Updated 20-Aug-12 6:30am

Sangramsingh Pawar

v2

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Withation 29-Mar-16 7:52am

Refer to this article. It uses an excel library for C#.

4 solutions

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Santhosh Kumar Jayaraman · Answer 1 · 2012-08-20T05:03:00

Solution 1

I have suggested an alternate way in this article.

Check that.
Export DataTable to Excel with Formatting in C#

Posted 20-Aug-12 5:03am

Santhosh Kumar Jayaraman

Updated 20-Aug-12 5:23am

v3

Comments

mantel1 20-Aug-12 11:22am

Thanks Santhosh. I'm actually reading the data from a sql database. Any suggestions on that approach?

Thanks

Santhosh Kumar Jayaraman 20-Aug-12 11:24am

Ya you can retrieve records from sql database and store it in datatable. Then try my method.

abhinavvijay · Answer 2 · 2012-08-20T07:32:00

protected void Button1_Click(object sender, EventArgs e)

{

    Response.AddHeader("content-disposition", 
       "attachment;filename=FileName.xls");

    Response.Charset = String.Empty;

    Response.ContentType = "application/vnd.xls";

    System.IO.StringWriter sw = new System.IO.StringWriter();

    System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(sw);

    GridView1.RenderControl(hw);

    Response.Write(sw.ToString());

    Response.End();

}

Prasad_Kulkarni · Answer 3 · 2012-08-20T18:39:00

Please refer following threads:

Import and Export Excel [^]
Direct Excel Export from ASP.Net GridView[^]
Export to EXCEL from Datatable in C#.Net[^]
Export to Excel from GridView in C#[^]
Export large data from Gridview and Datareader to an Excel file using C#[^]

Export Data to Excel file[^]
Export Report in 5 Formats[^]

C# Excel Tutorial[^]

Check similar discussion:
Export Data to Excel Using C# in One Colume[^]

..and more on CP[^]

abhinavvijay · Answer 4 · 2012-08-20T07:26:00

Here is the complete code to Export GridView to Excel:

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient; 

public partial class ExportGridView : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            GridView1.DataSource = BindData();
            GridView1.DataBind(); 
        }
    }

    

    private string ConnectionString
    {

        get { return @"Server=localhost;Database=Northwind;
        Trusted_Connection=true"; }

    }

    

    private DataSet BindData()
    {
        // make the query 
        string query = "SELECT * FROM Categories";
        SqlConnection myConnection = new SqlConnection(ConnectionString);
        SqlDataAdapter ad = new SqlDataAdapter(query, myConnection);
        DataSet ds = new DataSet();
        ad.Fill(ds, "Categories");
        return ds;

    }




    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Clear();

        Response.AddHeader("content-disposition", "attachment;
        filename=FileName.xls");

        Response.Charset = "";

        // If you want the option to open the Excel file without saving than

        // comment out the line below

        // Response.Cache.SetCacheability(HttpCacheability.NoCache);

        Response.ContentType = "application/vnd.xls";

        System.IO.StringWriter stringWrite = new System.IO.StringWriter();

        System.Web.UI.HtmlTextWriter htmlWrite =
        new HtmlTextWriter(stringWrite);

        GridView1.RenderControl(htmlWrite);

        Response.Write(stringWrite.ToString());

        Response.End();

    }

    public override void VerifyRenderingInServerForm(Control control)
    {

        // Confirms that an HtmlForm control is rendered for the
        specified ASP.NET server control at run time.

    }
}

Export Gridview to excel

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