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Wednesday, 25 March 2015

Excel File Upload Or Import and Display In GridView Using C# In Asp.Net

3/25/2015 - By Pranav Singh 0

This article will show you to excel file upload or import and display in gridview using c# in asp.net. This article will show you how to read excel file in asp.net, show the import and display the excel data in gridview using c#.


First we will create a new excel sheet with some data.


So for this article first I will create a new asp.net application and add the below code in your page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Excel File Upload Or Import and Display In GridView Using C# In Asp.Net</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:FileUpload ID="FileUpload1" runat="server" /> 
    <asp:Button ID="btnUpload" runat="server" Text="Upload & Display" OnClick="btnUpload_Click" />
    <br />
    <br />
    <asp:GridView ID="GridView1" runat="server">
    </asp:GridView>
    <asp:Label ID="lblMessage" runat="server" Text=""></asp:Label>
    <br />
    </form>
</body>
</html>

Now please check the code.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Data.OleDb;
using System.Data;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnUpload_Click(object sender, EventArgs e)
        {
            if (FileUpload1.HasFile)
            {
                string fileExtention = System.IO.Path.GetExtension(FileUpload1.FileName);
                if (fileExtention == ".xls" || fileExtention == ".xlsx")
                {
                    string fileName = System.IO.Path.GetFileName(FileUpload1.FileName);
                    FileUpload1.SaveAs(Server.MapPath("~/ExcelSheet/" + fileName));
                   /*Read excel sheet*/
                    string excelSheetFilename = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Server.MapPath("~/ExcelSheet/" + fileName) + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
                    OleDbConnection objcon = new OleDbConnection(excelSheetFilename);
                    string queryForExcel = "Select * from [UserDetail$];";
                    OleDbDataAdapter objda = new OleDbDataAdapter(queryForExcel, objcon);
                    DataSet objds = new DataSet();
                    objda.Fill(objds);
                    if (objds.Tables[0].Rows.Count > 0)
                    {
                        GridView1.DataSource = objds.Tables[0];
                        GridView1.DataBind();
                    }
                }
                else
                {
                    lblMessage.Text = "Please upload excel sheet.";
                }
            }
        }
    }
}

Now in above code I have first read the file and saved in a folder and the I read the excel sheet and stored in dataset and bind it to the gridview control.

Now we will create the folder.



In this folder we will upload the file as shown in code.

Now we have done run the application and check the output.



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