begin
    GetComponentData(GetComponent(0) as TComponent, listHandle, dataSet);
    listHandle:= TStringList.create;
    if (dataSet=Nil) then begin
       MessageDlg('Missing TableName property', mtInformation, [mbok], 0);
       exit;
    end;

    useTFields:= True;
{    try}
       if (EditSelectedFieldsProperty(GetComponent(0) as TComponent,
          listHandle, DataSet, Designer, True,
          useTFields, sptDataSetType)) then begin
           wwDataSetUpdateFieldProperties(DataSet, listHandle);
       end;
{    finally}
       listHandle.free;
{    end;}
end;

function TwwDBLookupDisplayProperty.GetValue: string;
var
   listHandle : TStrings;
   dataSet: TDataSet;
begin
   GetComponentData(GetComponent(0) as TComponent, listHandle, dataSet);
{   GetComponentData(GetComponent(0), listHandle, dataSet);}
   if listHandle.count>0 then result:= listHandle[0]
   else result := '';
end;

function TwwDBLookupDisplayProperty.GetAttributes: TPropertyAttributes;
begin
   result:= [paDialog];
end;

procedure TwwDBLookupDisplayProperty.Edit;
var
   listHandle : TStrings;
   dataSet: TDataSet;
   component: TComponent;
   useTFields: boolean;
   SelectedPropertyType: TwwSelectedPropertyType;
begin
    component:= GetComponent(0) as TComponent;
    GetComponentData(GetComponent(0) as TComponent, listHandle, dataSet);
    SelectedPropertyType:= sptNone;
    if GetComponent(0) is TwwCustomLookupDialog then
    begin
       useTFields:= TwwCustomLookupDialog(GetComponent(0)).useTFields;
    end
    else if GetComponent(0) is TwwRecordViewDialog then begin
       useTFields:= False; {TwwRecordViewDialog(GetComponent(0)).useTFields;}
       SelectedPropertyType:= sptRecordViewType;
    end
    else if GetComponent(0) is TwwDataInspector then begin
       SelectedPropertyType:= sptObjectViewType;
       useTFields:= False;
    end
    else if GetComponent(0) is TwwRecordViewPanel then begin
       useTFields:= False;
       SelectedPropertyType:= sptRecordViewType;
    end
    else if GetComponent(0) is TwwDBCustomLookupCombo then begin
       useTFields:= TwwDBCustomLookupCombo(GetComponent(0)).useTFields;
    end;

    if (dataSet=Nil) then begin
       if GetComponent(0) is TwwSearchDialog then begin
          MessageDlg('ShadowSearchTable is required to customize field layout of search dialog.', mtInformation, [mbok], 0);
       end
       else if Component is TwwRecordViewDialog then
          MessageDlg('DataSet required to customize RecordViewDialog Layout.', mtInformation, [mbok], 0)
       else if Component is TwwRecordViewPanel then
          MessageDlg('DataSet required to customize RecordViewPanel Layout.', mtInformation, [mbok], 0)
       else if Component is TwwDataInspector then
          MessageDlg('DataSet required to customize ObjectView Layout.', mtInformation, [mbok], 0)
       else MessageDlg('Missing LookupTable', mtInformation, [mbok], 0);
    end
    else if (EditSelectedFieldsProperty(component, listHandle, DataSet, Designer, True,
             useTFields, selectedPropertyType)) then
    begin
       if useTFields then wwDataSetUpdateFieldProperties(DataSet, listHandle);
       if GetComponent(0) is TwwCustomLookupDialog then
          TwwCustomLookupDialog(GetComponent(0)).useTFields:= useTFields
       else if GetComponent(0) is TwwDBCustomLookupCombo then
          TwwDBCustomLookupCombo(GetComponent(0)).useTFields:= useTFields;
       if Component is TwwDBCustomLookupCombo then
         (Component as TwwDBCustomLookupCombo).refreshDisplay
       else if Component is TwwRecordViewPanel then
         (Component as TwwRecordViewPanel).RecreateControls
       else if Component is TwwDataInspector then
         (Component as TwwDataInspector).ApplySettings;
    end
end;

procedure TwwDBLookupDisplayComponentEditor.Edit;
var
   listHandle : TStrings;
   dataSet: TDataSet;
   useTFields: boolean;
   SelectedPropertyType: TwwSelectedPropertyType;
begin
   GetComponentData(Component, listHandle, dataSet);
   SelectedPropertyType:= sptNone;
   if Component is TwwCustomLookupDialog then
   begin
      useTFields:= TwwCustomLookupDialog(Component).useTFields;
   end
   else if Component is TwwDBCustomLookupCombo then
   begin
      useTFields:= TwwDBCustomLookupCombo(Component).useTFields;
   end
   else if Component is TwwRecordViewDialog then
   begin
      useTFields:= False;
      SelectedPropertyType:= sptRecordViewType;
   end
   else if Component is TwwDataInspector then
   begin
      SelectedPropertyType:= sptObjectViewType;
      useTFields:= False;
   end
   else if Component is TwwRecordViewPanel then
   begin
      useTFields:= False;
      SelectedPropertyType:= sptRecordViewType;
   end;
   if (dataSet=Nil) then begin
      if Component is TwwSearchDialog then begin
         MessageDlg('ShadowSearchTable is required to customize field layout of search dialog.', mtInformation, [mbok], 0);
      end
      else if Component is TwwRecordViewDialog then
         MessageDlg('DataSet required to customize RecordViewDialog Layout.', mtInformation, [mbok], 0)
      else if Component is TwwRecordViewPanel then
         MessageDlg('DataSet required to customize RecordViewPanel Layout.', mtInformation, [mbok], 0)
      else if Component is TwwDataInspector then
         MessageDlg('DataSet required to customize ObjectView Layout.', mtInformation, [mbok], 0)
      else MessageDlg('Missing LookupTable', mtInformation, [mbok], 0);
   end
   else if (EditSelectedFieldsProperty(component, listHandle, DataSet, Designer, False, useTFields,
            SelectedPropertyType)) then
   begin
      if useTFields then wwDataSetUpdateFieldProperties(DataSet, listHandle);
      if Component is TwwCustomLookupDialog then
         TwwCustomLookupDialog(Component).useTFields:= useTFields
      else if Component is TwwDBCustomLookupCombo then
         TwwDBCustomLookupCombo(Component).useTFields:= useTFields;
      if Component is TwwDBCustomLookupCombo then
        (Component as TwwDBCustomLookupCombo).refreshDisplay
      else if Component is TwwRecordViewPanel then
         (Component as TwwRecordViewPanel).RecreateControls
       else if Component is TwwDataInspector then
         (Component as TwwDataInspector).ApplySettings;
   end
end;

Function TwwIndexFieldProperty.GetAttributes: TPropertyAttributes;
begin
   result:= [paValueList, paSortList];
end;

procedure TwwIndexFieldProperty.GetValues(Proc : TGetStrProc);
var
    LookupTable: TDataSet;
    curpos, i: integer;
    addedList: TStrings;
    indexFieldName: string;
begin
    if GetComponent(0) is TwwDBCustomLookupCombo then
       LookupTable:= (GetComponent(0) as TwwDBCustomLookupCombo).LookupTable
    else exit;

    if (LookupTable<>Nil) then begin
       if (LookupTable is TTable) or
          (LookupTable is TwwTable) and ((LookupTable as TwwTable).Query.Count=0) then begin
          addedList:= TStringList.create;

          (LookupTable as TTable).IndexDefs.update;
          for i:= 0 to (LookupTable as TTable).IndexDefs.count-1 do
          begin
             curpos:= 1;
             indexFieldName:= strGetToken((LookupTable as TTable).IndexDefs.Items[i].fields, ';', curpos);
             if (addedList.indexOf(indexFieldName)<0) then begin
                Proc(indexFieldname);
                addedList.add(indexFieldName);
             end
          end;

          addedList.free;
       end
       else begin
          for i:= 0 to LookupTable.FieldCount-1 do
             Proc(LookupTable.Fields[i].FieldName);
       end
    end
end;

Function TwwSearchFieldProperty.GetAttributes: TPropertyAttributes;
begin
   result:= [paValueList, paSortList];
end;

procedure TwwSearchFieldProperty.GetValues(Proc : TGetStrProc);
var
    ds: TDataSource;
    i: integer;
begin
   if GetComponent(0) is TwwLocateDialog then
      ds:= (GetComponent(0) as TwwLocateDialog).dataSource
   else if GetComponent(0) is TwwFilterDialog then
      ds:= (GetComponent(0) as TwwFilterDialog).dataSource
   else exit;

   if (ds<>Nil) and (ds.dataSet<>Nil) then begin
     with ds.DataSet do begin
        for i:= 0 to fieldCount-1 do begin
           if (fields[i].dataType = ftBlob) or (fields[i].dataType=ftGraphic) or
              (fields[i].dataType = ftVarBytes) or (fields[i].dataType=ftBytes) then
              continue;
           Proc(fields[i].FieldName);
        end
     end;
   end
end;

procedure TwwTableProperty.GetValues(Proc : TGetStrProc);
{$ifndef win32}
var
  I,J: Integer;
  ownerComponent, dmComponent, Component: TComponent;
{$endif}
begin
  {$ifdef win32}
  Designer.GetComponentNames(GetTypeData(TypeInfo(TwwTable)), Proc);
  {$else}
  ownerComponent:= ((GetComponent(0) as TComponent).Owner);
  if ownerComponent = nil then exit;

  for I := 0 to ownerComponent.ComponentCount - 1 do
  begin
    Component := ownerComponent.Components[I];
    if (Component is TwwTable) and (Component.Name <> '') then
      Proc(Component.Name);
  end;
  {$endif}
end;

    function TSelectedFieldsProperty.GetValue: string;
    begin
       result := 'wwDBGrid';
    end;

    function TSelectedFieldsProperty.GetAttributes: TPropertyAttributes;
    begin
      result:= [paDialog];
    end;

    procedure TSelectedFieldsProperty.Edit;
    var
      grid       : TwwDBGrid;
      useTFields: boolean;
    begin
       grid:= GetComponent(0) as TwwDBGrid;
       if (grid.dataSource=Nil) then begin
           MessageDlg('Grid requires a DataSource', mtInformation, [mbok], 0);
           exit;
       end;
       if (grid.dataSource.dataset=Nil) then begin { 12/1/98 }
           MessageDlg('Grid requires a DataSet', mtInformation, [mbok], 0);
           exit;
       end;

       useTFields:= grid.useTFields;
       if (EditSelectedFieldsProperty(grid, grid.Selected, grid.dataSource.dataset,
          Designer, True, useTFields, sptNone)) then
       begin
          grid.useTFields:= useTFields;
//          if not useTFields then grid.applyselected;
          grid.redrawGrid;
       end
       else if not useTFields then grid.ApplySelected;
    end;


    procedure TwwDBGridComponentEditor.edit;
    var
      grid       : TwwDBGrid;
      useTFields: boolean;
    begin
       grid:= Component as TwwDBGrid;
       if (grid.dataSource=Nil) then begin
           MessageDlg('Grid requires a DataSource', mtInformation, [mbok], 0);
           exit;
       end;
       if (grid.dataSource.dataset=Nil) then begin { 12/1/98 }
           MessageDlg('Grid requires a DataSet', mtInformation, [mbok], 0);
           exit;
       end;
       useTFields:= grid.useTFields;
       if (EditSelectedFieldsProperty(grid, grid.Selected, grid.dataSource.dataset,
          Designer, True, useTFields, sptNone)) then begin
          grid.useTFields:= useTFields;
          grid.redrawGrid;
       end
       else if not useTFields then grid.ApplySelected;
    end;

    procedure TwwRecordViewPanelComponentEditor.edit;
    var
      ListHandle: TStrings;
      DataSet: TDataSet;
      useTFields: boolean;
    begin
       GetComponentData(Component, listHandle, dataSet);
       if (dataset=Nil) then begin
           MessageDlg('Component requires a DataSourc/DataSet', mtInformation, [mbok], 0);
           exit;
       end;
       useTFields:= False;
       if (EditSelectedFieldsProperty(component, listHandle, DataSet,
          Designer, True, useTFields, sptRecordViewType)) then
          (Component as TwwRecordViewPanel).RecreateControls;
    end;

Function TwwComboItemsProperty.GetAttributes: TPropertyAttributes;
begin
   result:= [paDialog, paMultiSelect];
end;

Function GetItems(Component: TPersistent): TStrings;
var PropInfo: PPropInfo;
begin
   Result:= Nil;
   PropInfo:= Typinfo.GetPropInfo(Component.ClassInfo,'Items');
   if PropInfo<>Nil then
      result:= TStrings(GetOrdProp(Component, PropInfo));
end;

procedure TwwComboItemsProperty.Edit;
var MapList: boolean;
    i: integer;

   Function GetMapList(Component: TPersistent): boolean;
   var PropInfo: PPropInfo;
   begin
      result:= false;
      PropInfo:= Typinfo.GetPropInfo(Component.ClassInfo,'MapList');
      if PropInfo<>Nil then
         result:= Boolean(GetOrdProp(Component, PropInfo));
   end;

   Procedure SetMapList(Component: TPersistent; val: boolean);
   var PropInfo: PPropInfo;
   begin
      PropInfo:= Typinfo.GetPropInfo(Component.ClassInfo,'MapList');
      if PropInfo<>Nil then
         SetOrdProp(Component, PropInfo, ord(val));
   end;

begin
   MapList:= GetMapList(GetComponent(0));
   if wwEditComboList(GetItems(GetComponent(0)), MapList) then
   begin
      SetMapList(GetComponent(0), MapList); // 11/19/99 - Fix bug in not updating maplist property
      for i:= 1 to PropCount-1 do  {8/23/96 - Change all selected controls }
      begin
          GetItems(GetComponent(i)).assign(GetItems(GetComponent(0)));
          SetMapList(GetComponent(i), MapList);
      end;
//      SetMapList(GetComponent(0), MapList);
      Designer.modified;
   end;
end;

Function TwwComboItemsProperty.GetValue: string;
begin
   result:= '<' + inttostr(GetItems(GetComponent(0)).count) + ' Items>';
end;

function TwwPictureProperty.GetValue: string;
begin
   with (GetComponent(0) as TwwCustomMaskEdit) do begin
      result:= Picture.PictureMask;