private void populateDatabaseData() { using (ClientDataEntities1 dc = new ClientDataEntities1()) { gvData.DataSource = dc.ClientMasters.ToList(); gvData.DataBind(); } }
protected void btnImportFromCSV_Click(object sender, EventArgs e) { if (FileUpload1.PostedFile.ContentType == "application/vnd.ms-excel" || FileUpload1.PostedFile.ContentType == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet") { try { string fileName = System.IO.Path.Combine(Server.MapPath("~/UploadDocuments"), Guid.NewGuid().ToString() + Path.GetExtension(FileUpload1.PostedFile.FileName)); FileUpload1.PostedFile.SaveAs(fileName); string conString = ""; string ext = Path.GetExtension(FileUpload1.PostedFile.FileName); if (ext.ToLower() == ".xls") { conString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileName + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\""; } else if (ext.ToLower() == ".xlsx") { conString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\""; } string query = "Select [ClientID], [First_Name], [Last_Name], [Employer], [Title], [Phone_Number], [Zip] from [ClientList$]"; OleDbConnection con = new OleDbConnection(conString); if (con.State == System.Data.ConnectionState.Closed) { con.Open(); } OleDbCommand cmd = new OleDbCommand(query, con); OleDbDataAdapter da = new OleDbDataAdapter(cmd); DataSet ds = new DataSet(); da.Fill(ds); da.Dispose(); con.Close(); con.Dispose(); // Update database data using (ClientDataEntities1 dc = new ClientDataEntities1()) { foreach (DataRow dr in ds.Tables[0].Rows) { string empID = dr["ClientID"].ToString(); var v = dc.ClientMasters.Where(a => a.ClientID.Equals(empID)).FirstOrDefault(); if (v != null) { v.First_Name = dr["First_Name"].ToString(); v.Last_Name = dr["Last_Name"].ToString(); v.Employer = dr["Employer"].ToString(); v.Title = dr["Title"].ToString(); v.Phone_Number = dr["Phone_Number"].ToString(); v.Zip = dr["Zip"].ToString(); } else { dc.ClientMasters.Add(new ClientMaster { ClientID = dr["ClientID"].ToString(), First_Name = dr["First_Name"].ToString(), Last_Name = dr["Last_Name"].ToString(), Employer = dr["Employer"].ToString(), Title = dr["Title"].ToString(), Phone_Number = dr["Phone_Number"].ToString(), Zip = dr["Zip"].ToString(), }); } } dc.SaveChanges(); // populate updated data populateDatabaseData(); lblMessage.Text = "Excel file has been imported Successfully!"; } } catch (Exception) { throw; } } }