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C# - Export Excel Data to Datatable or Dataset or Gridview in Asp.net

Nov 5, 2014
Introduction:

Here I will explain how to export excel data to datatable or dataset 
in C#VB.NET or export data from excel to gridview in asp.net using OLEDB in C#, VB.NET.
Description:
  
In previous article I explained Export gridview data to excel in asp.netHow to Export gridview data to excel/word document, Import Excel data to sql database
and some other articles relating to export gridview dataNow I will explain how to export excel data to datatable or dataset or gridview in asp.net using C#VB.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
Demo

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2 comments :

meet Doshi said...

Find this Error:
The Microsoft Office Access database engine could not find the object 'Sheet1$'. Make sure the object exists and that you spell its name and the path name correctly.
I have use Sheet1 in excel file

ZCXszcZc said...

i got the same error

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