to export the data in exell sheet using c#

Question

0.00/5 (No votes)

See more:

Hi all,

I have generated one application using asp.net with c#.

The concept is,

when i click button, the data has been display excel sheet, but in my application its getting few errors like "incorrect syntax near datadownload". using stored procedure am retrieving the data from database, please give me a solution for this app..

my code is:

C#

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.IO;
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 _Default : System.Web.UI.Page 
{
    string s = ConfigurationManager.AppSettings["const"].ToString();
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    private DataTable Getdata(SqlCommand cmd)
    {
        DataTable dt = new DataTable();
        
        SqlConnection con = new SqlConnection(s);
        SqlDataAdapter da = new SqlDataAdapter();
        cmd.CommandType = CommandType.Text;
        cmd.Connection = con;
        try
        {
            con.Open();
            da.SelectCommand = cmd;
            da.Fill(dt);
            return dt;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            con.Close();
            da.Dispose();
            con.Dispose();

        }
    }
    protected void download_Click(object sender, EventArgs e)
    {
       
            SqlConnection con = new SqlConnection(s);
            SqlCommand cmd = new SqlCommand("datadownload", con);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@Destinations", SqlDbType.VarChar);
           
            if (con.State == ConnectionState.Closed)
            {
                con.Open();
                cmd.ExecuteNonQuery();

            }
            con.Close();         
        DataTable dt = Getdata(cmd);

        GridView gv1 = new GridView();
        gv1.AllowPaging = false;
        gv1.DataSource = dt;
        gv1.DataBind();

        Response.Clear();
        Response.Buffer = true;
        Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.xls");
        Response.Charset = "";
        Response.ContentType = "application/vnd.ms-excel";
        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);

        for (int i = 0; i < gv1.Rows.Count; i++)
        {
            gv1.Rows[i].Attributes.Add("class", "textmode");

        }
        gv1.RenderControl(hw);
        string style = @"<style> .textmode { mso-number-format:\@; } </style>";
        Response.Write(style);
        Response.Output.Write(sw.ToString());
        Response.Flush();
        Response.End();
    }
}

Posted 14-Jan-13 23:51pm

stellus

Updated 14-Jan-13 23:55pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

Add a Solution

Comments

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Jan-13 6:04am

What is the name of the stored procedure you are using?
Is that "datadownload"?

stellus 15-Jan-13 6:07am

yes my sp name is
"datadownload"

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Jan-13 6:10am

Can you post the Stored Procedure code here and what is the connection string, is it correct?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ask Dj · Answer 1 · 2013-01-15T00:00:00

Hope this example help you....

You need to add this ( Microsoft.Office.Interop.Excel)reference to your solution you can find it in Add Reference-->.Net Tab

C#

using System.ComponentModel;
private void btnGenerateExcel_Clickddd(object sender, EventArgs e)
{
// Start the BackgroundWorker.

backgroundWorker1.RunWorkerAsync();
 

// creating Excel Application
Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
 
// creating new WorkBook within Excel application
Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
 
// creating new Excelsheet in workbook
Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
 
// see the excel sheet behind the program
app.Visible = false;
 
// get the reference of first sheet. By default its name is Sheet1.
// store its reference to worksheet
worksheet = workbook.Sheets["Sheet1"];
worksheet = workbook.ActiveSheet;
 
// changing the name of active sheet
worksheet.Name = "Inspection Order Detail";
 


// storing header part in Excel
for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
{
worksheet.Cells[1, i] = dataGridView1.Columns[i - 1].HeaderText; // Header in Excel Sheet which u want to show
}
 
// storing Each row and column value to excel sheet
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{
for (int j = 0; j < dataGridView2.Columns.Count; j++) 
{
worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString(); // in ur case you can give first three colums
 
}
} 
 
// save the application
workbook.SaveAs("C:\\Users\\xxxxxx\\Desktop\\Temp\\output.xlsx", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
 
// Exit from the application
app.Quit();
 
releaseObject(worksheet);

releaseObject(workbook);
releaseObject(app);
 
MessageBox.Show("Excel file created , you can find the file C:\\Users\\xxxxxxx\\Desktop\\Temp\\output.xlsx");
}