public string ValidateCustomerPortalLogin(string InstallationID, string soapusername, string soappassword, string CustomerLogin, string CustomerPassword) { try { CustomerBiz oBiz = new CustomerBiz(soapusername, soappassword); DataSet myDataSet = oBiz.ValidateCustomerPortalLogin(InstallationID, CustomerLogin, CustomerPassword); return(myDataSet.GetXml()); } catch (Exception ex) { return("<error>" + LWTSafeTypes.SafeXml(ex.Message.ToString()) + "</error>"); } }