Introduction

This article describes how to export a GridView data to excel, word, pdf, text, csv format and print in ASP.Net.

Description

Since there is no support for pdf conversion, we require a third-party DLL to be referenced by our application that will use for convert the grid to pdf.

  1. itextsharp.dll

You can download it from the source code attached to this article.

Image1.jpg

Design

Now add GridvView, six Button for export. Design your screen as in the following screen.

Or you can copy the following source code:

<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td colspan="3" align="center">
<asp:GridView ID="gvDetails" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="EmpId" HeaderText="Employee ID" />
<asp:BoundField DataField="EmpName" HeaderText="Employee Name" />
<asp:BoundField DataField="Education" HeaderText="Education" />
<asp:BoundField DataField="Place" HeaderText="Place" />
</Columns>
</asp:GridView>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnExel" runat="server" Text="Export to Exel" OnClick="btnExel_Click" />
</td>
<td>
<asp:Button ID="btnWord" runat="server" Text="Export to Word" OnClick="btnWord_Click" />
</td>
<td>
<asp:Button ID="btnPdf" runat="server" Text="Export to Pdf" OnClick="btnPdf_Click" />
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnCsv" runat="server" Text="Export to Csv" OnClick="btnCsv_Click" />
</td>
<td>
<asp:Button ID="btnText" runat="server" Text="Export to Text" OnClick="btnText_Click" />
</td>
<td>
<asp:Button ID="btnPrint" runat="server" Text="Print" OnClientClick="PrintGridData();" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>

Now go to the code view.

Here I use a static datatable data to bind it to grid. but you can use database data to bind.

Import the reference of
using System.Data;

following is the code to bind data to grid method and call this method in :

 protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGridDetails();
}
}
protected void BindGridDetails()
{
DataTable dt = new DataTable();
dt.Columns.Add("EmpId", typeof(Int32));
dt.Columns.Add("EmpName", typeof(string));
dt.Columns.Add("Education", typeof(string));
dt.Columns.Add("Place", typeof(string));
DataRow dtrow = dt.NewRow();
dtrow["EmpId"] = 1;
dtrow["EmpName"] = "Sanjeeb";
dtrow["Education"] = "MCA";
dtrow["Place"] = "Hyderabad";
dt.Rows.Add(dtrow);
dtrow = dt.NewRow();
dtrow["EmpId"] = 2;
dtrow["EmpName"] = "Laku";
dtrow["Education"] = "MBA";
dtrow["Place"] = "Hyderabad";
dt.Rows.Add(dtrow);
dtrow = dt.NewRow();
dtrow["EmpId"] = 3;
dtrow["EmpName"] = "Pankaj";
dtrow["Education"] = "B.Tech";
dtrow["Place"] = "Bihar";
dt.Rows.Add(dtrow);
dtrow = dt.NewRow();
dtrow["EmpId"] = 4;
dtrow["EmpName"] = "Srikanth";
dtrow["Education"] = "B.Tech";
dtrow["Place"] = "Hyderabad";
dt.Rows.Add(dtrow);
gvDetails.DataSource = dt;
gvDetails.DataBind();
}

Now run the application you will see the gridview with data.

Image2.jpg

GridView with data is ready for export.

Import the reference of
using System.IO;

Now write this code under button click event of Exel.

//This code is for export grid to exel
protected void btnExel_Click(object sender, EventArgs e)
{
BindGridDetails();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Details.xls"));
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter ht = new HtmlTextWriter(sw);
gvDetails.RenderControl(ht);
Response.Write(sw.ToString());
Response.End();
}

write this code under button click event of Word:

//This code is for export grid to word
protected void btnWord_Click(object sender, EventArgs e)
{
BindGridDetails();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Details.doc"));
Response.ContentType = "application/ms-word";
StringWriter sw = new StringWriter();
HtmlTextWriter ht = new HtmlTextWriter(sw);
gvDetails.RenderControl(ht);
Response.Write(sw.ToString());
Response.End();
}

Import the reference of
using System.Text;

write this code under button click event of Text:

 //This code is for export grid to text
protected void btnText_Click(object sender, EventArgs e)
{
BindGridDetails();
Response.ClearContent();
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Details.txt"));
Response.ContentType = "application/text";
StringBuilder str = new StringBuilder();
for (int i = 0; i < gvDetails.Columns.Count; i++)
{
str.Append(gvDetails.Columns[i].HeaderText + ',');
}
str.Append("\n");
for (int j = 0; j < gvDetails.Rows.Count; j++)
{
for (int k = 0; k < gvDetails.Columns.Count; k++)
{
str.Append(gvDetails.Rows[j].Cells[k].Text + ',');
}
str.Append("\n");
}
Response.Write(str.ToString());
Response.End();
}

write this code under button click event of Csv:

//This code is for export grid to text
protected void btnText_Click(object sender, EventArgs e)
{
BindGridDetails();
Response.ClearContent();
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Details.txt"));
Response.ContentType = "application/text";
StringBuilder str = new StringBuilder();
for (int i = 0; i < gvDetails.Columns.Count; i++)
{
str.Append(gvDetails.Columns[i].HeaderText + ',');
}
str.Append("\n");
for (int j = 0; j < gvDetails.Rows.Count; j++)
{
for (int k = 0; k < gvDetails.Columns.Count; k++)
{
str.Append(gvDetails.Rows[j].Cells[k].Text + ',');
}
str.Append("\n");
}
Response.Write(str.ToString());
Response.End();
}

Before write the code for pdf 1st add the reference of itextsharp.dll.

Import these namspaces.

using iTextSharp;
using iTextSharp.text;
using iTextSharp.text.html.simpleparser;
using iTextSharp.text.pdf;

write this code under button click event of Pdf:

//This code is for export grid to pdf
protected void btnPdf_Click(object sender, EventArgs e)
{
BindGridDetails();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=Details.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
gvDetails.RenderControl(hw);
StringReader sr = new StringReader(sw.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End();
}

For print button write this javascript code in head section of aspx page.

<script type="text/javascript">
function PrintGridData() {
var prtGrid = document.getElementById('<%=gvDetails.ClientID %>');
var prtwin = window.open('', 'PrintGridView',
'left=100,top=100,width=400,height=400,tollbar=0,scrollbars=1,status=0,resizable=1');
prtwin.document.write(prtGrid.outerHTML);
prtwin.document.close();
prtwin.focus();
prtwin.print();
prtwin.close();
}
</script>

Call this function in print button OnClientClick.

<asp:Button ID="btnPrint" runat="server" Text="Print" OnClientClick="PrintGridData();" />

Now if you run the application you will got an error like this

Image3.jpg
To avoid this error write this code :

//Verifies the control is rendered
public override void VerifyRenderingInServerForm(Control control)
{
}

Now run the application and check the app by clicking on export Buttons.

Image4.jpg