private void zonecomboBox_DropDownOpened(object sender, EventArgs e)
        {
            Zone_Context.Dispose();
            Zone_Context = new Data_Model.Geographic_Features_Entities();
            System.Windows.Data.CollectionViewSource ZoneListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("ZoneListViewSource")));
            decimal SelectedStream = System.Convert.ToDecimal(streamcombobox.SelectedValue.ToString());
            decimal SelectedLake   = System.Convert.ToDecimal(lakecomboBox.SelectedValue.ToString());
            var     Zones          = Zone_Context.QRY_ZONE_LIST_WITH_LAKE_STREAM_GEO
                                     .Where(STATIONS => STATIONS.LAKE == SelectedLake)
                                     .Where(STATIONS => STATIONS.STREAM == SelectedStream)
                                     .ToList();

            ZoneListViewSource.Source = Zone_Context.QRY_ZONE_LIST_WITH_LAKE_STREAM_GEO.Local;
        }
        private void stationcomboBox_DropDownOpened(object sender, EventArgs e)
        {
            Station_Context.Dispose();
            Station_Context = new Data_Model.Geographic_Features_Entities();
            System.Windows.Data.CollectionViewSource StationListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StationListViewSource")));
            decimal SelectedStream = System.Convert.ToDecimal(streamcombobox.SelectedValue.ToString());
            decimal SelectedLake   = System.Convert.ToDecimal(lakecomboBox.SelectedValue.ToString());
            decimal SelectedZone   = System.Convert.ToDecimal(zonecomboBox.SelectedValue.ToString());
            var     Stations       = Station_Context.STATIONS_GEO
                                     .Where(STATIONS => STATIONS.LAKE == SelectedLake)
                                     .Where(STATIONS => STATIONS.STREAM == SelectedStream)
                                     .Where(STATIONS => STATIONS.ZONE == SelectedZone)
                                     .ToList();

            StationListViewSource.Source = Station_Context.STATIONS_GEO.Local;
        }
        private void employeeofficecomboBox_DropDownOpened(object sender, EventArgs e)
        {
            Last_Name_Context.Dispose();
            Last_Name_Context = new Data_Model.Geographic_Features_Entities();
            System.Windows.Data.CollectionViewSource LastNameListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LastNameListViewSource")));
            LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_GEO.Local;

            Employee_Context.Dispose();
            Employee_Context = new Data_Model.Geographic_Features_Entities();
            System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
            EmployeeListViewSource.Source = Employee_Context.EMPLOYEES_GEO.Local;


            System.Windows.Data.CollectionViewSource OfficeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("OfficeListViewSource")));
            var Office = Office_Context.OFFICES_GEO.ToList();

            OfficeListViewSource.Source = Office_Context.OFFICES_GEO.Local;

            EMPIDTextBox.Text = null;
        }
        private void employeefirstnamecomboBox_DropDownOpened(object sender, EventArgs e)
        {
            if (employeelastnamecomboBox.SelectedValue != null && employeeofficecomboBox.SelectedValue != null)
            {
                String SelectedOffice   = employeeofficecomboBox.SelectedValue.ToString();
                String SelectedLastName = employeelastnamecomboBox.Text.ToString();
                Employee_Context.Dispose();
                Employee_Context = new Data_Model.Geographic_Features_Entities();


                System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
                var EmployeeFirst = Employee_Context.EMPLOYEES_GEO
                                    .Where(EMPLOYEES => EMPLOYEES.OFFICE == SelectedOffice)
                                    .Where(EMPLOYEES => EMPLOYEES.LASTNAME == SelectedLastName)
                                    .OrderBy(EMPLOYEES => EMPLOYEES.FIRSTNAME)
                                    .ToList();

                EmployeeListViewSource.Source = Employee_Context.EMPLOYEES_GEO.Local;
                EMPIDTextBox.Text             = null;
            }
        }
        private void lakecomboBox_DropDownClosed(object sender, EventArgs e)
        {
            StreamTextBox.Text = null;
            Stream_Context.Dispose();
            Stream_Context = new Data_Model.Geographic_Features_Entities();

            System.Windows.Data.CollectionViewSource StreamListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StreamListViewSource")));
            decimal SelectedLake = System.Convert.ToDecimal(lakecomboBox.SelectedValue.ToString());

            lakecomboBox.Items.Refresh();
            var Stream = Stream_Context.STREAMS_GEO
                         .Where(STREAMS => STREAMS.LAKE == SelectedLake)
                         .OrderBy(STREAMS => STREAMS.STREAM_NAME)
                         .ToList();

            StreamListViewSource.Source = Stream_Context.STREAMS_GEO.Local;
            StreamTextBox.Text          = null;
            streamcombobox.Text         = null;
            zonecomboBox.Text           = null;
            stationcomboBox.Text        = null;
        }
        private void employeelastnamecomboBox_DropDownOpened(object sender, EventArgs e)
        {
            if (employeeofficecomboBox.SelectedValue != null)
            {
                String SelectedOffice = employeeofficecomboBox.SelectedValue.ToString();
                Employee_Context.Dispose();
                Employee_Context = new Data_Model.Geographic_Features_Entities();
                System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
                EmployeeListViewSource.Source = Employee_Context.EMPLOYEES_GEO.Local;

                System.Windows.Data.CollectionViewSource LastNameListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LastNameListViewSource")));

                var Employee = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_GEO
                               .Where(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.OFFICE == SelectedOffice)
                               .OrderBy(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.LASTNAME)
                               .ToList();
                LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_GEO.Local;

                employeeofficecomboBox.SelectedValue = SelectedOffice;
                EMPIDTextBox.Text = null;
            }
        }
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            System.Windows.Data.CollectionViewSource gEOGRAPHIC_FEATURESViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("gEOGRAPHIC_FEATURESViewSource")));

            var GeoFeature = Geo_Features_Context.GEOGRAPHIC_FEATURES
                             .Where(GEOGRAPHIC_FEATURES => GEOGRAPHIC_FEATURES.ID == SelectedID)
                             .ToList();

            gEOGRAPHIC_FEATURESViewSource.Source = Geo_Features_Context.GEOGRAPHIC_FEATURES.Local;

            bool isIDNotEmpty;

            isIDNotEmpty = Geo_Features_Context.GEOGRAPHIC_FEATURES.Any(x => x.ID == SelectedID);

            if (isIDNotEmpty == false)
            {
                Geo_Features_Context.Dispose();
                Geo_Features_Context = new Data_Model.Geographic_Features_Entities();
                //Data_Model.Geographic_Features_Entities Geo_Features_Context = new Data_Model.Geographic_Features_Entities();
                Geo_Features_Context.GEOGRAPHIC_FEATURES.Local.Add(new Data_Model.GEOGRAPHIC_FEATURES()
                {
                    ID = SelectedID
                });
                gEOGRAPHIC_FEATURESViewSource.Source = Geo_Features_Context.GEOGRAPHIC_FEATURES.Local;

                WaypointIDTextBox.Text             = null;
                StreamTextBox.Text                 = null;
                CollectionDateTextBox.SelectedDate = DateTime.Today;
                System.Windows.Data.CollectionViewSource LakeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LakeListViewSource")));
                LakeListViewSource.Source = Lake_Context.LAKES_GEO.Local;

                System.Windows.Data.CollectionViewSource StreamListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StreamListViewSource")));
                StreamListViewSource.Source = Stream_Context.STREAMS_GEO.Local;

                System.Windows.Data.CollectionViewSource ZoneListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("ZoneListViewSource")));
                ZoneListViewSource.Source = Zone_Context.STATIONS_GEO.Local;

                System.Windows.Data.CollectionViewSource StationListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StationListViewSource")));
                StationListViewSource.Source = Station_Context.STATIONS_GEO.Local;

                System.Windows.Data.CollectionViewSource FeatureTypeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("FeatureTypeListViewSource")));
                FeatureTypeListViewSource.Source = Feature_Type_Context.GEOGRAPHIC_FEATURE_TYPES.Local;

                System.Windows.Data.CollectionViewSource OfficeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("OfficeListViewSource")));
                OfficeListViewSource.Source = Office_Context.OFFICES_GEO.Local;

                System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
                EmployeeListViewSource.Source = Employee_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;
            }
            else
            {
                System.Windows.Data.CollectionViewSource LakeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LakeListViewSource")));
                var Lakes = Lake_Context.LAKES_GEO.ToList();
                LakeListViewSource.Source = Lake_Context.LAKES_GEO.Local;

                System.Windows.Data.CollectionViewSource StreamListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StreamListViewSource")));
                decimal SelectedLake = System.Convert.ToDecimal(lakecomboBox.SelectedValue.ToString());
                lakecomboBox.Items.Refresh();
                var Stream = Stream_Context.STREAMS_GEO
                             .Where(STREAMS => STREAMS.LAKE == SelectedLake)
                             .ToList();
                StreamListViewSource.Source = Stream_Context.STREAMS_GEO.Local;

                System.Windows.Data.CollectionViewSource ZoneListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("ZoneListViewSource")));
                decimal SelectedStream = System.Convert.ToDecimal(streamcombobox.SelectedValue.ToString());
                var     Zones          = Zone_Context.STATIONS_GEO
                                         .Where(STATIONS => STATIONS.LAKE == SelectedLake)
                                         .Where(STATIONS => STATIONS.STREAM == SelectedStream)
                                         .ToList();
                ZoneListViewSource.Source = Zone_Context.STATIONS_GEO.Local;

                System.Windows.Data.CollectionViewSource StationListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("StationListViewSource")));
                decimal SelectedZone = System.Convert.ToDecimal(zonecomboBox.SelectedValue.ToString());
                var     Stations     = Station_Context.STATIONS_GEO
                                       .Where(STATIONS => STATIONS.LAKE == SelectedLake)
                                       .Where(STATIONS => STATIONS.STREAM == SelectedStream)
                                       .Where(STATIONS => STATIONS.ZONE == SelectedZone)
                                       .ToList();
                StationListViewSource.Source = Station_Context.STATIONS_GEO.Local;

                System.Windows.Data.CollectionViewSource FeatureTypeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("FeatureTypeListViewSource")));
                var Features = Feature_Type_Context.GEOGRAPHIC_FEATURE_TYPES.ToList();
                FeatureTypeListViewSource.Source = Feature_Type_Context.GEOGRAPHIC_FEATURE_TYPES.Local;

                System.Windows.Data.CollectionViewSource OfficeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("OfficeListViewSource")));
                var Office = Office_Context.OFFICES_GEO.ToList();
                OfficeListViewSource.Source = Office_Context.OFFICES_GEO.Local;

                System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
                Decimal SelectedEMPID = System.Convert.ToDecimal(EMPIDTextBox.Text.ToString());
                var     Employee      = Employee_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO
                                        .Where(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.EMPID == SelectedEMPID)
                                        .ToList();
                EmployeeListViewSource.Source = Employee_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;

                System.Windows.Data.CollectionViewSource LastNameListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LastNameListViewSource")));
                String SelectedOffice   = employeeofficecomboBox.SelectedValue.ToString();
                var    EmployeeLastName = Last_Name_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO
                                          .Where(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.EMPID == SelectedEMPID)
                                          .OrderBy(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.LASTNAME)
                                          .ToList();
                LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;

                WaypointIDTextBox.IsEnabled = false;
                Validation.ClearInvalid(WaypointIDTextBox.GetBindingExpression(TextBox.TextProperty));
            }
        }
        private void EMPIDTextBox_SelectionChanged(object sender, RoutedEventArgs e)
        {
            bool IsValidEMPID;



            if (EMPIDTextBox.Text != "")
            {
                Decimal EMPID = Convert.ToDecimal(EMPIDTextBox.Text.ToString());
                using (Data_Model.Geographic_Features_Entities context = new Data_Model.Geographic_Features_Entities())
                    IsValidEMPID = context.EMPLOYEES_GEO.Any(x => x.EMPID == EMPID);
                if (IsValidEMPID == true)
                {
                    Employee_Context.Dispose();
                    Last_Name_Context.Dispose();
                    Office_Context.Dispose();
                    Employee_Context  = new Data_Model.Geographic_Features_Entities();
                    Last_Name_Context = new Data_Model.Geographic_Features_Entities();
                    Office_Context    = new Data_Model.Geographic_Features_Entities();

                    System.Windows.Data.CollectionViewSource EmployeeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("EmployeeListViewSource")));
                    Decimal SelectedEMPID = System.Convert.ToDecimal(EMPIDTextBox.Text.ToString());
                    var     Employee      = Employee_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO
                                            .Where(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.EMPID == SelectedEMPID)
                                            .ToList();
                    EmployeeListViewSource.Source = Employee_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;


                    System.Windows.Data.CollectionViewSource LastNameListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("LastNameListViewSource")));
                    //String SelectedOffice = employeeofficecomboBox.Text.ToString();
                    var EmployeeLastName = Last_Name_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO
                                           .Where(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.EMPID == SelectedEMPID)
                                           .OrderBy(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.LASTNAME)
                                           .ToList();

                    LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;

                    System.Windows.Data.CollectionViewSource OfficeListViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("OfficeListViewSource")));
                    var Office = Office_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO
                                 .Where(QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME => QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME.EMPID == SelectedEMPID)
                                 .ToList();
                    OfficeListViewSource.Source = Office_Context.QRY_EMPLOYEE_LIST_WITH_OFFICE_NAME_GEO.Local;
                    //if (employeelastnamecomboBox.SelectedValue != null && employeeofficecomboBox.SelectedValue != null)
                    //{
                    //    String SelectedOfficeChar = employeeofficecomboBox.SelectedValue.ToString();

                    //    String SelectedFirstName = employeelastnamecomboBox.SelectedValue.ToString();

                    //Employee_Context.Dispose();
                    //Last_Name_Context.Dispose();
                    //Office_Context.Dispose();
                    //Employee_Context = new Data_Model.Geographic_Features_Entities();
                    //Last_Name_Context = new Data_Model.Geographic_Features_Entities();
                    //Office_Context = new Data_Model.Geographic_Features_Entities();


                    // var OfficeChar = Office_Context.OFFICES
                    //     .Where(Office_Content => Office_Content.OFFICE_CHAR == SelectedOfficeChar)
                    //     .ToList();
                    // OfficeListViewSource.Source = Office_Context.OFFICES.Local;

                    // var EmployeeLast = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS
                    //.Where(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.OFFICE == SelectedOfficeChar)
                    //.Where(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.LASTNAME == SelectedLastName)
                    //.OrderBy(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.LASTNAME)
                    //.ToList();
                    // LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.Local;

                    // var EmployeeFirst = Employee_Context.EMPLOYEES
                    // .Where(EMPLOYEES => EMPLOYEES.OFFICE == SelectedOfficeChar)
                    //  .Where(EMPLOYEES => EMPLOYEES.LASTNAME == SelectedLastName)
                    // .OrderBy(EMPLOYEES => EMPLOYEES.FIRSTNAME)
                    // .ToList();

                    // EmployeeListViewSource.Source = Employee_Context.EMPLOYEES.Local;
                    // }
                    //if (employeelastnamecomboBox.SelectedValue != null && employeeofficecomboBox.SelectedValue != null && employeefirstnamecomboBox.SelectedValue == null)
                    //{
                    //    String SelectedOfficeChar = employeeofficecomboBox.SelectedValue.ToString();
                    //    String SelectedLastName = employeelastnamecomboBox.SelectedValue.ToString();


                    //    Employee_Context.Dispose();
                    //    Last_Name_Context.Dispose();
                    //    Office_Context.Dispose();
                    //    Employee_Context = new Data_Model.Geographic_Features_Entities();
                    //    Last_Name_Context = new Data_Model.Geographic_Features_Entities();
                    //    Office_Context = new Data_Model.Geographic_Features_Entities();


                    //    var OfficeChar = Office_Context.OFFICES
                    //        .Where(Office_Content => Office_Content.OFFICE_CHAR == SelectedOfficeChar)
                    //        .ToList();
                    //    OfficeListViewSource.Source = Office_Context.OFFICES.Local;

                    //    var EmployeeLast = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS
                    //   .Where(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.OFFICE == SelectedOfficeChar)
                    //   .Where(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.LASTNAME == SelectedLastName)
                    //   .OrderBy(QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS => QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.LASTNAME)
                    //   .ToList();
                    //    LastNameListViewSource.Source = Last_Name_Context.QRY_EMPLOYEES_LAST_NAME_LIST_WITH_OFFICE_TRAPS.Local;

                    //    var EmployeeFirst = Employee_Context.EMPLOYEES
                    //    .Where(EMPLOYEES => EMPLOYEES.OFFICE == SelectedOfficeChar)
                    //     .Where(EMPLOYEES => EMPLOYEES.LASTNAME == SelectedLastName)
                    //    .OrderBy(EMPLOYEES => EMPLOYEES.FIRSTNAME)
                    //    .ToList();

                    //    EmployeeListViewSource.Source = Employee_Context.EMPLOYEES.Local;
                    //}
                }
                else
                {
                    employeelastnamecomboBox.Text  = null;
                    employeeofficecomboBox.Text    = null;
                    employeefirstnamecomboBox.Text = null;
                }
            }
            else
            {
                //employeelastnamecomboBox.Text = null;
                //employeeofficecomboBox.Text = null;
            }
        }
示例#9
0
        public string this[string columnName]
        {
            get
            {
                string result = null;
                if (columnName == "WAYPOINT_ID")
                {
                    bool _IsDuplicateGeo;
                    bool _ISDuplicateLarval;

                    using (Geographic_Features_Entities contextg = new Geographic_Features_Entities())
                        _IsDuplicateGeo = contextg.GEOGRAPHIC_FEATURES.Any(x => x.WAYPOINT_ID == WAYPOINT_ID);
                    using (Geographic_Features_Entities contextl = new Geographic_Features_Entities())
                        _ISDuplicateLarval = contextl.LL_LARVAL_ASSESSMENTS_GEO.Any(x => x.WAYPOINT_ID == WAYPOINT_ID);

                    if (_IsDuplicateGeo == true)
                    {
                        result = "Duplicate Waypoint ID in Geographic Features!";
                    }

                    else if (_ISDuplicateLarval == true)
                    {
                        result = "Duplicate Waypoint ID in Larval Assessments!";
                    }
                }
                if (columnName == "LAKE")
                {
                    bool    _ISValidLake;
                    string  lakedec      = System.Convert.ToString(LAKE);
                    string  streamstring = System.Convert.ToString(STREAM);
                    decimal?streamdec    = System.Convert.ToDecimal(STREAM);

                    using (Geographic_Features_Entities context = new Geographic_Features_Entities())
                        _ISValidLake = context.LAKES_GEO.Any(x => x.LAKE1 == LAKE);

                    if (_ISValidLake == false)
                    {
                        result = "Invalid Lake Code!";
                    }
                }
                if (columnName == "STREAM")
                {
                    bool _ISValidStream;

                    using (Geographic_Features_Entities context = new Geographic_Features_Entities())
                        _ISValidStream = context.STREAMS_GEO.Any(x => x.LAKE == LAKE && x.STREAM1 == STREAM);

                    if (_ISValidStream == false)
                    {
                        result = "Invalid Stream Code!";
                    }
                }

                if (columnName == "ZONE")
                {
                    bool _ISValidZone;
                    using (Geographic_Features_Entities context = new Geographic_Features_Entities())
                        _ISValidZone = context.STATIONS_GEO.Any(x => x.LAKE == LAKE && x.STREAM == STREAM && x.ZONE == ZONE);

                    if (_ISValidZone == false)
                    {
                        result = "Invalid Zone!";
                    }
                }
                if (columnName == "STATION")
                {
                    bool _ISValidZone;
                    using (Geographic_Features_Entities context = new Geographic_Features_Entities())
                        _ISValidZone = context.STATIONS_GEO.Any(x => x.LAKE == LAKE && x.STREAM == STREAM && x.ZONE == ZONE && x.STATION1 == STATION);

                    if (_ISValidZone == false)
                    {
                        result = "Invalid Zone!";
                    }
                }
                if (columnName == "FEATURE_TYPE")
                {
                    bool    _ISValidFeature;
                    string  lakedec      = System.Convert.ToString(LAKE);
                    string  streamstring = System.Convert.ToString(STREAM);
                    decimal?streamdec    = System.Convert.ToDecimal(STREAM);

                    using (Geographic_Features_Entities context = new Geographic_Features_Entities())
                        _ISValidFeature = context.GEOGRAPHIC_FEATURE_TYPES.Any(x => x.FEATURE_TYPE == FEATURE_TYPE);

                    if (_ISValidFeature == false)
                    {
                        result = "Invalid Feature Type!";
                    }
                }
                return(result);
            }
        }