Hello,
i am creating a form to upload data from excel file to sql database.
but having an issue of saving data due to 1 field as unique, so i can't insert data it gives error.
can anyone tell me how to modify my code so i can append data to sql database using my web form and removing duplicates and giving notification how many removed kind ?/
please help me.
here is my frontend code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="way2.aspx.cs" Inherits="_Default" %>
<!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 id="Head1" runat="server">
<title></title>
<style type="text/css">
.auto-style1 {
width: 217px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table style="height: 88px; width: 429px">
<tr>
<td>
<span style="color: Red">*</span>Attach Excel file
</td>
<td class="auto-style1">
<asp:FileUpload ID="fileuploadExcel" runat="server" Height="22px" Width="300px" />
</td>
</tr>
<tr>
<td>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Way2" />
</td>
<td class="auto-style1">
<asp:Button ID="btnSend" runat="server" Text="Export" onclick="btnSend_Click" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Backend code:
protected void btnSend_Click(object sender, EventArgs e)
{
//file upload path
string path = fileuploadExcel.PostedFile.FileName;
//Create connection string to Excel work book
string excelConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source='C:\Users\xxxxxx\Desktop\filename.xlsx';Extended Properties=Excel 12.0;Persist Security Info=False";
//Create Connection to Excel work book
OleDbConnection excelConnection =new OleDbConnection(excelConnectionString);
//Create OleDbCommand to fetch data from Excel
OleDbCommand cmd = new OleDbCommand("Select * from [Sheet1$]",excelConnection);
excelConnection.Open();
OleDbDataReader dReader;
dReader = cmd.ExecuteReader();
SqlBulkCopy sqlBulk = new SqlBulkCopy(strConnection);
//Give your Destination table name
sqlBulk.DestinationTableName = "Traffic";
sqlBulk.WriteToServer(dReader);
excelConnection.Close();
}
please help ! a code will be more helpful.
