Private Sub InsertNewContactDetails() Dim iSql As String = "Insert into CompanyDetails (EmailOffice,EmailAdmin,EmailOrders,EmailAccounts,EmailOther,ContactPersonOffice,ContactPersonAdmin,ContactPersonOrders,ContactPersonAccounts,ContactPersonOther,ContactNumber,ContactNumberExtension,ContactnumberFax,ContactNumberFaxExtension,ContactNumberMobile1,ContactNumberMobile2,ContactNumberDirectNumber,ContactNumberFaxToEmail) VALUES ( ' " + txtEmailOffice.Text + " ',' " + txtEmailAdmin.Text + " ' ,' " + txtEmailOrders.Text + " ' , ' " + txtEmailAccounts + " ' , ' " + txtEmailOther.Text + " ', ' " + txtContactPersonOffice.Text + " ', ' " + txtPostalAddress1.Text + " ',' " + txtPostalAddress2.Text + " ', ' " + cmbPostalAddress3.Text + "','" + cmbCategory.Text + "' ,'" + cmbClassification.Text + "')" Dim da As New OleDb.OleDbDataAdapter(iSql, MyConnection) Dim dt As New DataTable da.Fill(dt) da.Dispose() myDataSet() txtEmailOffice.Text = "" End Sub"Operator '+' is not defined for types 'String' and 'Telerik.WinControls.UI.RadTextBox'."