Updating Excel data to Share Point List Items based on Id
Loading Excel Data public void LoadExcelData() { string fileName = "D:/Employee.xlsx"; string fileExtension = Path.GetExtension(fileName).ToUpper(); string connectionString = ""; if (fileExtension == ".XLS") { connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + fileName + "'; Extended Properties='Excel 8.0;HDR=YES;'"; } else if (fileExtension == ".XLSX") { connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" + fileName + "';Extended Prop...