I want to Insert data from SqlServer to Excel using visual studio windows app and sql server 2005.

Hi Gokilavasan,

Here is a windows application using Ms-access database.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;

namespace Export_to_Excel_in_windows
{
    public partial class Form1 : Form
    {

        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        DataSet ds;
        OleDbDataAdapter oledbda;
        //DataTable dt;
        string str;

        public Form1()
        {
            InitializeComponent();
        }

        private void btndisplay_Click(object sender, EventArgs e)
        {

            try
            {
                OleDbConnection con = new OleDbConnection(ConnectionString);
                con.Open();
                str = "select * from employee where CreatedDate between '" +dateTimePicker1.Value.Date.ToString() + "' and '" + dateTimePicker2.Value.Date.ToString() + "'";
                //str ="select * from employee where CreatedDate>='" + dateTimePicker1.Value.Date.ToString() + "' and CreatedDate<='" + dateTimePicker2.Value.Date.ToString() + "'";
                com = new OleDbCommand(str, con);
                ds = new DataSet();
                oledbda = new OleDbDataAdapter(com);
                oledbda.Fill(ds, "employee");
                con.Close();
                DataGridView1.DataSource = ds;
                DataGridView1.DataMember = "employee";
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btn_export_Click(object sender, EventArgs e)
        {
            //We have to add a reference to the Microsoft Excel object library.
            //Right click on your project and select Add Reference menu. After that go to COM tab and select and add Microsoft Excel 12.0 object library.

            Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
            Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
            Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
            app.Visible = true;

            try
            {

                worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Sheets["Sheet1"];
                worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.ActiveSheet;
                worksheet.Name = "Exported from DataGridView";

                for (int i = 1; i < DataGridView1.Columns.Count + 1; i++)
                {
                    worksheet.Cells[1, i] = DataGridView1.Columns[i - 1].HeaderText;
                }

                for (int i = 0; i < DataGridView1.Rows.Count - 1; i++)
                {
                    for (int j = 0; j < DataGridView1.Columns.Count; j++)
                    {
                        worksheet.Cells[i + 2, j + 1] = DataGridView1.Rows[i].Cells[j].Value.ToString();
                    }
                }

                string fileName = String.Empty;

                saveFileExcel.Filter = "Excel files |*.xls|All files (*.*)|*.*";
                saveFileExcel.FilterIndex = 2;
                saveFileExcel.RestoreDirectory = true;

                if (saveFileExcel.ShowDialog() == DialogResult.OK)
                {
                    fileName = saveFileExcel.FileName;

                    workbook.SaveAs(fileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

                }
                else
                    return;

            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                app.Quit();
                workbook = null;
                app = null;
            }
        }
    }
}

Thanks

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Satyapriya Nayak14y ago
Accepted answer
Hi Gokilavasan,

Here is a windows application using Ms-access database.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;

namespace Export_to_Excel_in_windows
{
    public partial class Form1 : Form
    {

        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        DataSet ds;
        OleDbDataAdapter oledbda;
        //DataTable dt;
        string str;

        public Form1()
        {
            InitializeComponent();
        }

        private void btndisplay_Click(object sender, EventArgs e)
        {

            try
            {
                OleDbConnection con = new OleDbConnection(ConnectionString);
                con.Open();
                str = "select * from employee where CreatedDate between '" +dateTimePicker1.Value.Date.ToString() + "' and '" + dateTimePicker2.Value.Date.ToString() + "'";
                //str ="select * from employee where CreatedDate>='" + dateTimePicker1.Value.Date.ToString() + "' and CreatedDate<='" + dateTimePicker2.Value.Date.ToString() + "'";
                com = new OleDbCommand(str, con);
                ds = new DataSet();
                oledbda = new OleDbDataAdapter(com);
                oledbda.Fill(ds, "employee");
                con.Close();
                DataGridView1.DataSource = ds;
                DataGridView1.DataMember = "employee";
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btn_export_Click(object sender, EventArgs e)
        {
            //We have to add a reference to the Microsoft Excel object library.
            //Right click on your project and select Add Reference menu. After that go to COM tab and select and add Microsoft Excel 12.0 object library.

            Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
            Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
            Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
            app.Visible = true;

            try
            {

                worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Sheets["Sheet1"];
                worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.ActiveSheet;
                worksheet.Name = "Exported from DataGridView";

                for (int i = 1; i < DataGridView1.Columns.Count + 1; i++)
                {
                    worksheet.Cells[1, i] = DataGridView1.Columns[i - 1].HeaderText;
                }

                for (int i = 0; i < DataGridView1.Rows.Count - 1; i++)
                {
                    for (int j = 0; j < DataGridView1.Columns.Count; j++)
                    {
                        worksheet.Cells[i + 2, j + 1] = DataGridView1.Rows[i].Cells[j].Value.ToString();
                    }
                }

                string fileName = String.Empty;

                saveFileExcel.Filter = "Excel files |*.xls|All files (*.*)|*.*";
                saveFileExcel.FilterIndex = 2;
                saveFileExcel.RestoreDirectory = true;

                if (saveFileExcel.ShowDialog() == DialogResult.OK)
                {
                    fileName = saveFileExcel.FileName;

                    workbook.SaveAs(fileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

                }
                else
                    return;

            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                app.Quit();
                workbook = null;
                app = null;
            }
        }
    }
}

Thanks
gokilavasan m14y ago
Hi,

I want to Insert and update data from sql to excel using stored procedure using web application.my stored procedurename-sp_AdhocCost.I attached my excel file(For update adhoc cost column).what can i do .please tell me.

Thanks & regards,
gokilavasan.M
gokilavasan m14y ago
ya I got it.Thank U All.
Pravin Ghadge14y ago
Hi Gokilavasan,

Just right click on that cell & then click on format cells->then select date format
gokilavasan m14y ago
Thank u so much.It is working correctly in my system.but that CreatedDate column only shows #### #### #### value in excel sheet