Export data to pdf,word,excel in c#.net
hi,i am using the c#.net to retrieve the values from database.now i want to export the datatable values to msword,excel or pdf.how to do it.anybody help me.Thanks in advance
Regards
kavinaya
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Category: .NET
i am using the c#.net to retrieve the values from database.now i want to export the datatable values to msword,excel or pdf.how to do it.anybody help me.Thanks in advance
Regards
kavinaya
#647572
using System.Data;
using System.Data.SqlClient;
using System.Text;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
Function to get the results in datatable
private DataTable GetData(SqlCommand cmd)
{
DataTable dt = new DataTable();
String strConnString = System.Configuration.ConfigurationManager.
ConnectionStrings["conString"].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
SqlDataAdapter sda = new SqlDataAdapter();
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
try
{
con.Open();
sda.SelectCommand = cmd;
sda.Fill(dt);
return dt;
}
catch (Exception ex)
{
throw ex;
}
finally
{
con.Close();
sda.Dispose();
con.Dispose();
}
}
As you can see above I am passing the query to the GetData function and it returns the results as datatable back.
Export to Word
protected void ExportToWord(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.doc");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-word ";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.RenderControl(hw);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
Export to Excel
Below is the code to export the datatable to Excel Format. It first fills the datatable using the GetData function and then binds it to a dummy GridView and then the dummy GridView is rendered as Excel Workbook. Also you will notice I applied textmode style to all the rows so that it in rendered as text.
protected void ExportToExcel(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
for (int i = 0; i < GridView1.Rows.Count; i++)
{
//Apply text style to each Row
GridView1.Rows[i].Attributes.Add("class", "textmode");
}
GridView1.RenderControl(hw);
//style to format numbers to string
string style = @"";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
Export to Portable Document Format (PDF)
Below is the code to export the datatable to PDF Format. It first fills the datatable using the GetData function and then binds it to a dummy GridView and then the dummy GridView is rendered as PDF document using the iTextSharp Library which is a free open source library and can be downloaded from here.
protected void ExportToPDF(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.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();
}
Export to Comma Separated Values (CSV)
Below is the code to export the datatable to CSV or Text Format. It first fills the datatable using the GetData function. To export dataset to CSV there is no need of dummy GridView. We just have to loop through the records and append the delimiting character comma.
protected void ExportToCSV(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.csv");
Response.Charset = "";
Response.ContentType = "application/text";
StringBuilder sb = new StringBuilder();
for (int k = 0; k < dt.Columns.Count; k++)
{
//add separator
sb.Append(dt.Columns[k].ColumnName + ',');
}
//append new line
sb.Append("\r\n");
for (int i = 0; i < dt.Rows.Count; i++)
{
for (int k = 0; k < dt.Columns.Count; k++)
{
//add separator
sb.Append(dt.Rows[i][k].ToString().Replace(",", ";") + ',');
}
//append new line
sb.Append("\r\n");
}
Response.Output.Write(sb.ToString());
Response.Flush();
Response.End();
}
if you want to know more about other export detail please refer
http://yogeshyrbyogi.blogspot.com/2009/10/export-dataset-or-datatable-to-word.html#!/2009/10/export-dataset-or-datatable-to-word.html
it give you the detail of other export also like Excel, CSV,PDF
using System.Data.SqlClient;
using System.Text;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
Function to get the results in datatable
private DataTable GetData(SqlCommand cmd)
{
DataTable dt = new DataTable();
String strConnString = System.Configuration.ConfigurationManager.
ConnectionStrings["conString"].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
SqlDataAdapter sda = new SqlDataAdapter();
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
try
{
con.Open();
sda.SelectCommand = cmd;
sda.Fill(dt);
return dt;
}
catch (Exception ex)
{
throw ex;
}
finally
{
con.Close();
sda.Dispose();
con.Dispose();
}
}
As you can see above I am passing the query to the GetData function and it returns the results as datatable back.
Export to Word
protected void ExportToWord(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.doc");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-word ";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.RenderControl(hw);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
Export to Excel
Below is the code to export the datatable to Excel Format. It first fills the datatable using the GetData function and then binds it to a dummy GridView and then the dummy GridView is rendered as Excel Workbook. Also you will notice I applied textmode style to all the rows so that it in rendered as text.
protected void ExportToExcel(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
for (int i = 0; i < GridView1.Rows.Count; i++)
{
//Apply text style to each Row
GridView1.Rows[i].Attributes.Add("class", "textmode");
}
GridView1.RenderControl(hw);
//style to format numbers to string
string style = @"";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
Export to Portable Document Format (PDF)
Below is the code to export the datatable to PDF Format. It first fills the datatable using the GetData function and then binds it to a dummy GridView and then the dummy GridView is rendered as PDF document using the iTextSharp Library which is a free open source library and can be downloaded from here.
protected void ExportToPDF(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.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();
}
Export to Comma Separated Values (CSV)
Below is the code to export the datatable to CSV or Text Format. It first fills the datatable using the GetData function. To export dataset to CSV there is no need of dummy GridView. We just have to loop through the records and append the delimiting character comma.
protected void ExportToCSV(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.csv");
Response.Charset = "";
Response.ContentType = "application/text";
StringBuilder sb = new StringBuilder();
for (int k = 0; k < dt.Columns.Count; k++)
{
//add separator
sb.Append(dt.Columns[k].ColumnName + ',');
}
//append new line
sb.Append("\r\n");
for (int i = 0; i < dt.Rows.Count; i++)
{
for (int k = 0; k < dt.Columns.Count; k++)
{
//add separator
sb.Append(dt.Rows[i][k].ToString().Replace(",", ";") + ',');
}
//append new line
sb.Append("\r\n");
}
Response.Output.Write(sb.ToString());
Response.Flush();
Response.End();
}
if you want to know more about other export detail please refer
http://yogeshyrbyogi.blogspot.com/2009/10/export-dataset-or-datatable-to-word.html#!/2009/10/export-dataset-or-datatable-to-word.html
it give you the detail of other export also like Excel, CSV,PDF
#647576
Hi,
You can use below code if you have iTextSharp dll. You may download the dll from http://sourceforge.net/projects/itextsharp/
Code for exporting data to Excel/Word/PDF and all will be same except the two lines of code where we specifically mention PDF.
Regards,
Asheej T K
You can use below code if you have iTextSharp dll. You may download the dll from http://sourceforge.net/projects/itextsharp/
Code for exporting data to Excel/Word/PDF and all will be same except the two lines of code where we specifically mention PDF.
private void ExportToExcel()
{
string Excelfilename = "Test_pdf_Export" + DateTime.Now;
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition","attachment;filename=PDFFileName.pdf");
Response.Charset = "";
this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
GridView1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
}
Regards,
Asheej T K
#647582
Hi,
Use the below code to export to pdf
Use the below code to export to pdf
protected void ExportToPDF(object sender, EventArgs e)
{
//Get the data from database into datatable
string strQuery = "select CustomerID, ContactName, City, PostalCode" +
" from customers";
SqlCommand cmd = new SqlCommand(strQuery);
DataTable dt = GetData(cmd);
//Create a dummy GridView
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = dt;
GridView1.DataBind();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.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();
}
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