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Import Excel Sheet Data To DataGridView

Updated: Category: DataGridView
Author: Member Level: GoldPoints: 8

To import data from an excel sheet we use ASP.NET's DataGridView control. The code sample consists of an .aspx page followed by the code behind c-sharp file.
The web page gives users options to upload the excel sheet (.xls file). And the code behind file does the magic of loading the data into DataGridview.


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ImportFromExcel.aspx.cs" Inherits="ImportFromExcel" %&RT;

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""&RT;

<html xmlns="" &RT;
<head runat="server"&RT;
<title&RT;Untitled Page</title&RT;
<form id="form1" runat="server"&RT;
<table style="position: relative; left: 200px; top: 98px;"&RT;
<td colspan="3"&RT;
<asp:Label ID="lblError" runat="server" Visible="False" ForeColor="Red" Width="231px" style="position: static"&RT;</asp:Label&RT;</td&RT;
<td colspan="2"&RT;
Select Your Excel File</td&RT;
<td style="width: 100px"&RT;
<asp:FileUpload ID="FileUpload1" runat="server" /&RT;</td&RT;
<tr align="center"&RT;
<td colspan="3"&RT;
<asp:Button ID="btnImport" runat="server" Text="Import" OnClick="btnImport_Click" /&RT;
<asp:Button ID="btnCancel" runat="server" Text="Cancel" /&RT;</td&RT;
<td colspan="3"&RT;
<asp:Label ID="lblMessage" runat="server" Text="" ForeColor="green"&RT;</asp:Label&RT;
<asp:GridView ID="MyGrid" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None"
Style="left: 23px; position: relative; top: 13px" Width="204px" AllowPaging="True" OnPageIndexChanging="MyGrid_PageIndexChanging" PageSize="5"&RT;
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /&RT;
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" /&RT;
<EditRowStyle BackColor="#999999" /&RT;
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" /&RT;
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" /&RT;
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /&RT;
<AlternatingRowStyle BackColor="White" ForeColor="#284775" /&RT;

Code Behind (.cs)

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Data.OleDb;

public partial class ImportFromExcel : System.Web.UI.Page
public SqlConnection sqlcon = new SqlConnection("Data Source = MINDS3; User ID = sa; Password = minds; Initial Catalog=simple");
protected void Page_Load(object sender, EventArgs e)
if (!Page.IsPostBack)
lblError.Visible = false;

protected void btnImport_Click(object sender, EventArgs e)
string ExcelFilename = FileUpload1.PostedFile.FileName;
string ExcelFileNameonly = ExcelFilename.Substring(ExcelFilename.LastIndexOf("\\") + 1);
string FileExt = ExcelFilename.Substring(ExcelFilename.LastIndexOf(".") + 1);
string Filenamewithoutextn = ExcelFileNameonly.Remove(ExcelFileNameonly.LastIndexOf("."));
if(FileExt.ToLower() == "xls")
FileUpload1.PostedFile.SaveAs(Server.MapPath("Imported Files/") + Filenamewithoutextn + ".xls");
string strConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("Imported Files/") + Filenamewithoutextn + ".xls;Extended Properties=Excel 8.0;";

OleDbConnection olecon = new OleDbConnection(strConnectionString);

int RecordCount = 0;
lblMessage.Visible = false;
lblError.Visible = false;
OleDbCommand cmd = olecon.CreateCommand();
cmd.CommandText = "SELECT * FROM [Import$]";
DataSet ds = new DataSet();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
OleDbDataReader dr = cmd.ExecuteReader();

string deletestr = "delete from importdata";
SqlCommand sqlcmd = new SqlCommand(deletestr, sqlcon);

while (dr.Read())
SqlCommand cmd1 = sqlcon.CreateCommand();
cmd1.CommandText = "INSERT INTO ImportData values ('" + dr[0] + "','" + dr[1] + "')";
lblMessage.Visible = true;
lblMessage.Text = " Processed Record # " + RecordCount.ToString();
catch (Exception ex)
lblError.Visible = true;
lblError.Text = ex.Message;


private void BindGrid()
lblError.Visible = false;
SqlCommand cmd2 = sqlcon.CreateCommand();
cmd2.CommandText = "SELECT * FROM ImportData order by UserID";

DataSet sds = new DataSet();

SqlDataAdapter sda = new SqlDataAdapter(cmd2);

sda.Fill(sds, "ImportData");
MyGrid.DataSource = sds.Tables["ImportData"].DefaultView;
catch (Exception ex)
lblError.Visible = true;
lblError.Text = ex.Message;

protected void MyGrid_PageIndexChanging(object sender, GridViewPageEventArgs e)
MyGrid.PageIndex = e.NewPageIndex;

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