Skip to main content

Import/Upload Excel Data to Asp.net Gridview in C#, VB.NET

Introduction: 


Here I will explain how to import data from excel to gridview in asp.net using OLEDB in C#, VB.NET.
Description: 
    Now I will explain how to import data from excel to gridview in asp.net.

To implement this concept first we need to create one excel file like as shown below
 
Once excel creation done we need to create new website and write the following code in your aspx page

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Read and Display Data From an Excel File (.xsl or .xlsx) in ASP.NET</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<b>Please Select Excel File: </b>
<asp:FileUpload ID="fileuploadExcel" runat="server" />&nbsp;&nbsp;
<asp:Button ID="btnImport" runat="server" Text="Import Data" OnClick="btnImport_Click" />
<br />
<asp:Label ID="lblMessage" runat="server" Visible="False" Font-Bold="True" ForeColor="#009933"></asp:Label><br />
<asp:GridView ID="grvExcelData" runat="server">
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
</asp:GridView>
</div>
</form>
</body>
</html>
Now open code behind file and add the following namespaces


using System;
using System.Data;
using System.Data.OleDb;
using System.IO;
After that write the following code in code behind

C#.NET Code


protected void btnImport_Click(object sender, EventArgs e)
{
string connString = "";
string strFileType = Path.GetExtension(fileuploadExcel.FileName).ToLower();
string path = fileuploadExcel.PostedFile.FileName;
//Connection String to Excel Workbook
if (strFileType.Trim() == ".xls")
{
connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
}
else if (strFileType.Trim() == ".xlsx")
{
connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
}
string query = "SELECT [UserName],[Education],[Location] FROM [Sheet1$]";
OleDbConnection conn = new OleDbConnection(connString);
if (conn.State == ConnectionState.Closed)
conn.Open();
OleDbCommand cmd = new OleDbCommand(query, conn);
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
grvExcelData.DataSource = ds.Tables[0];
grvExcelData.DataBind();
da.Dispose();
conn.Close();
conn.Dispose();
}
VB.NET Code:


Imports System.Data
Imports System.Data.OleDb
Imports System.IO

Partial Class Default2
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Protected Sub btnImport_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim connString As String = ""
Dim strFileType As String = Path.GetExtension(fileuploadExcel.FileName).ToLower()
Dim path__1 As String = fileuploadExcel.PostedFile.FileName
'Connection String to Excel Workbook
If strFileType.Trim() = ".xls" Then
connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & path__1 & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=2"""
ElseIf strFileType.Trim() = ".xlsx" Then
connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & path__1 & ";Extended Properties=""Excel 12.0;HDR=Yes;IMEX=2"""
End If
Dim query As String = "SELECT [UserName],[Education],[Location] FROM [Sheet1$]"
Dim conn As New OleDbConnection(connString)
If conn.State = ConnectionState.Closed Then
conn.Open()
End If
Dim cmd As New OleDbCommand(query, conn)
Dim da As New OleDbDataAdapter(cmd)
Dim ds As New DataSet()
da.Fill(ds)
grvExcelData.DataSource = ds.Tables(0)
grvExcelData.DataBind()
da.Dispose()
conn.Close()
conn.Dispose()
End Sub
End Class



Labels:

Comments

Post a Comment

Popular posts from this blog

.NET Core API With Dapper, Repository And UnitOfWork

  Introduction In this tutorial, you will use ASP.NET Core Web API to create a web API that returns a list of brands. This article focuses on creating web API using dapper, repository pattern, and UnitOfWork pattern in .NET 8. I will guide you through the steps by step to create web API. HTTP is not just for serving up web pages. HTTP is also a powerful platform for building APIs that expose services and data. HTTP is simple, flexible, and ubiquitous. Almost any platform that you can think of has an HTTP library, so HTTP services can reach a broad range of clients, including browsers, mobile devices, and traditional desktop applications. ASP.NET Core Web API is a framework for building web APIs on top of the .NET Framework. Creating a New Project in Visual Studio Launch Visual Studio and select Create a New Project. Creating a Core Web API Start Visual Studio and choose Create a new project. In the Create a new project dialog, select ASP.NET Core Web API Click Next. Configuring You...
Post a Comment
Read more

.Net framework interview questions

What is the .NET Framework? The .NET Framework is a set of technologies that form an integral part of the .NET Platform. It is Microsoft’s managed code programming model for building applications. The .NET Framework has two main components: Common Language Runtime (CLR): The CLR is one of the foundation in the .NET framework and provides a common set of services for applications developed on Microsoft .Net Technologies. .NET Framework class library: The .NET framework class library is a collection of reusable types and exposes features of the runtime. It contains of a set of classes that is used to access common functionality. What is CTS (Common Type System)? The common type system (CTS) defines how types are declared, used, and managed in the runtime, and is also an important part of the runtime’s support for cross-language integration. The common type system performs the following functions: ·          Establishes a framework that...
Post a Comment
Read more

Move Selected Gridview Rows to Another Gridview in Asp.net

Introduction :  Here I will explain how to move or transfer selected checkbox gridview rows to another  grid v iew in asp.net using c#, vb.net or copy one gridview row to another gridview in asp.net using c#, vb.net. Description :  In previous posts I explained Display images in gridview from database in asp.net, Enable/Disable checkbox in gridview based on condition,  asp.net gridview examples  and  bind data to textbox control in gridview ,  Bind data to dropdownlist  in gridview  and many articles relating to  asp.net,  c#, vb.net, c#,vb.net. Now I will explain how to move selected rows from one gridview to another gridview in asp.netusing c#, vb.net. To implement this first we need to write the code in aspx page like this  < html   xmlns ="http://www.w3.org/1999/xhtml"> < head > ...
Post a Comment
Read more