How to import data from excel file sheet to sql server

Question

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data.SqlClient;

using System.Data.OleDb;

using System.Data;

using System.Data.Common;

using System.IO;

using System.Drawing;

namespace ImportExcel

{

public partial class WebForm1 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

if (FileUpload1.HasFile)

{

string Path = string.Concat((Server.MapPath("~/temp/" + FileUpload1.FileName)));

FileUpload1.PostedFile.SaveAs(Path);

OleDbConnection oledbCon = new OleDbConnection("Provider=microsoft.ACe.oledb.12.0;Data Source =" + Path + ";Extended Properties=Excel 12.0");

OleDbCommand Cmd = new OleDbCommand("select * from [Sheet1$]", oledbCon);

OleDbDataAdapter ObjAdapter1 = new OleDbDataAdapter(Cmd);

oledbCon.Open();

DbDataReader da = Cmd.ExecuteReader();

string con_str = @"Data Source=.;Initial Catalog=ABDALLA;Integrated Security=True";

SqlBulkCopy bulkInsert = new SqlBulkCopy(con_str);

bulkInsert.DestinationTableName = "tbl_studentdetails";

bulkInsert.WriteToServer(da);

oledbCon.Close();

Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);

Label1.Visible = true;

Label1.ForeColor = Color.Green;

Label1.Text = "Inserted Data Successfull";

Label2.ForeColor = Color.Red;

Label2.Text = "Change Team on 25/5/2016";

}

else

{

Label1.ForeColor = Color.Red;

Label1.Text="Please select file ";

}

}

}

}