how can we upload multiple data by excel sheet in database. please Read Below :

Hey Guys I solve this 
 
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=" + path + ";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 [id],[name],[salary] from [Sheet1$]",excelConnection);
        excelConnection.Open();
        OleDbDataReader dReader;
        dReader = cmd.ExecuteReader();
        SqlBulkCopy sqlBulk = new SqlBulkCopy(strConnection);
        //Give your Destination table name
        sqlBulk.DestinationTableName = "employee";
        //sqlBulk.DestinationTableName = "Book2";
        sqlBulk.WriteToServer(dReader);
        excelConnection.Close();
        grid();
     }