diff --git a/components/tachart/demo/unit1.lfm b/components/tachart/demo/unit1.lfm
index d2949902ca..bbfd2edcd2 100644
--- a/components/tachart/demo/unit1.lfm
+++ b/components/tachart/demo/unit1.lfm
@@ -11,6 +11,26 @@ object Form1: TForm1
   object Chart1: TChart
     Height = 392
     Width = 585
+    BottomAxis.Grid.Color = clGray
+    BottomAxis.Grid.Style = psDot
+    BottomAxis.Grid.Visible = True
+    BottomAxis.Title.Font.Height = -11
+    BottomAxis.Title.Font.Name = 'MS Sans Serif'
+    Foot.Brush.Color = clBtnFace
+    Foot.Font.Color = clRed
+    Foot.Font.Height = -13
+    Foot.Font.Name = 'MS Sans Serif'
+    Foot.Font.Style = [fsBold]
+    Foot.Text.Strings = (
+      'This a LeftAligned Footer'
+    )
+    Frame.Visible = True
+    LeftAxis.Grid.Color = clGray
+    LeftAxis.Grid.Style = psDot
+    LeftAxis.Grid.Visible = True
+    LeftAxis.Title.Angle = 90
+    LeftAxis.Title.Font.Height = -11
+    LeftAxis.Title.Font.Name = 'MS Sans Serif'
     Legend.Font.Height = -11
     Legend.Font.Name = 'MS Sans Serif'
     Title.Brush.Color = clBtnFace
@@ -21,26 +41,6 @@ object Form1: TForm1
       'Centered Chart Title'
     )
     Title.Visible = True
-    Foot.Brush.Color = clBtnFace
-    Foot.Font.Color = clRed
-    Foot.Font.Height = -13
-    Foot.Font.Name = 'MS Sans Serif'
-    Foot.Font.Style = [fsBold]
-    Foot.Text.Strings = (
-      'This a LeftAligned Footer'
-    )
-    LeftAxis.Grid.Color = clGray
-    LeftAxis.Grid.Style = psDot
-    LeftAxis.Grid.Visible = True
-    LeftAxis.Title.Angle = 90
-    LeftAxis.Title.Font.Height = -11
-    LeftAxis.Title.Font.Name = 'MS Sans Serif'
-    BottomAxis.Grid.Color = clGray
-    BottomAxis.Grid.Style = psDot
-    BottomAxis.Grid.Visible = True
-    BottomAxis.Title.Font.Height = -11
-    BottomAxis.Title.Font.Name = 'MS Sans Serif'
-    Frame.Visible = True
     Align = alClient
     ParentColor = False
     object Chart1LineHor: TLine
diff --git a/components/tachart/demo/unit1.lrs b/components/tachart/demo/unit1.lrs
index c2be7188df..9255d1ba7b 100644
--- a/components/tachart/demo/unit1.lrs
+++ b/components/tachart/demo/unit1.lrs
@@ -4,44 +4,44 @@ LazarusResources.Add('TForm1','FORMDATA',[
   'TPF0'#6'TForm1'#5'Form1'#4'Left'#3'U'#1#6'Height'#3#238#1#3'Top'#3#225#0#5'W'
   +'idth'#3'I'#2#7'Caption'#6#5'Form1'#12'ClientHeight'#3#238#1#11'ClientWidth'
   +#3'I'#2#8'Position'#7#14'poScreenCenter'#10'LCLVersion'#6#6'0.9.27'#0#6'TCha'
-  +'rt'#6'Chart1'#6'Height'#3#136#1#5'Width'#3'I'#2#18'Legend.Font.Height'#2#245
-  +#16'Legend.Font.Name'#6#13'MS Sans Serif'#17'Title.Brush.Color'#7#9'clBtnFac'
-  +'e'#16'Title.Font.Color'#7#6'clBlue'#17'Title.Font.Height'#2#245#15'Title.Fo'
-  +'nt.Name'#6#13'MS Sans Serif'#18'Title.Text.Strings'#1#6#20'Centered Chart T'
-  +'itle'#0#13'Title.Visible'#9#16'Foot.Brush.Color'#7#9'clBtnFace'#15'Foot.Fon'
-  +'t.Color'#7#5'clRed'#16'Foot.Font.Height'#2#243#14'Foot.Font.Name'#6#13'MS S'
-  +'ans Serif'#15'Foot.Font.Style'#11#6'fsBold'#0#17'Foot.Text.Strings'#1#6#25
-  +'This a LeftAligned Footer'#0#19'LeftAxis.Grid.Color'#7#6'clGray'#19'LeftAxi'
-  +'s.Grid.Style'#7#5'psDot'#21'LeftAxis.Grid.Visible'#9#20'LeftAxis.Title.Angl'
-  +'e'#2'Z'#26'LeftAxis.Title.Font.Height'#2#245#24'LeftAxis.Title.Font.Name'#6
-  +#13'MS Sans Serif'#21'BottomAxis.Grid.Color'#7#6'clGray'#21'BottomAxis.Grid.'
-  +'Style'#7#5'psDot'#23'BottomAxis.Grid.Visible'#9#28'BottomAxis.Title.Font.He'
-  +'ight'#2#245#26'BottomAxis.Title.Font.Name'#6#13'MS Sans Serif'#13'Frame.Vis'
-  +'ible'#9#5'Align'#7#8'alClient'#11'ParentColor'#8#0#5'TLine'#13'Chart1LineHo'
-  +'r'#12'ShowInLegend'#8#9'Pen.Style'#7#6'psDash'#11'SeriesColor'#7#7'clBlack'
-  +#0#0#5'TLine'#14'Chart1LineVert'#12'ShowInLegend'#8#9'LineStyle'#7#10'lsVert'
-  +'ical'#9'Pen.Style'#7#6'psDash'#11'SeriesColor'#7#7'clBlack'#0#0#0#6'TPanel'
-  +#6'Panel1'#6'Height'#2'f'#3'Top'#3#136#1#5'Width'#3'I'#2#5'Align'#7#8'alBott'
-  +'om'#12'ClientHeight'#2'f'#11'ClientWidth'#3'I'#2#8'TabOrder'#2#0#0#6'TLabel'
-  +#6'lblAdd'#4'Left'#2#13#6'Height'#2#14#3'Top'#2#10#5'Width'#2#24#7'Caption'#6
-  +#4'Add:'#11'ParentColor'#8#0#0#6'TLabel'#8'lblClear'#4'Left'#2#13#6'Height'#2
-  +#14#3'Top'#2'('#5'Width'#2#30#7'Caption'#6#6'Clear:'#11'ParentColor'#8#0#0#6
-  +'TLabel'#11'lblAddCount'#4'Left'#3' '#1#6'Height'#2#14#3'Top'#2#8#5'Width'#2
-  +':'#7'Caption'#6#12'Multiple add'#11'ParentColor'#8#0#0#6'TLabel'#12'lblMark'
-  +'Style'#4'Left'#2'0'#6'Height'#2#14#3'Top'#2'P'#5'Width'#2'N'#7'Caption'#6#15
-  +'Add with marks:'#11'ParentColor'#8#0#0#6'TLabel'#11'lblReticule'#4'Left'#3
-  +'h'#1#6'Height'#2#14#3'Top'#2'P'#5'Width'#2'+'#7'Caption'#6#9'Reticule:'#11
-  +'ParentColor'#8#0#0#7'TButton'#9'btnAddPie'#4'Left'#2'0'#6'Height'#2#24#3'To'
-  +'p'#2#8#5'Width'#2'4'#25'BorderSpacing.InnerBorder'#2#4#7'Caption'#6#3'Pie'#7
-  +'OnClick'#7#14'btnAddPieClick'#8'TabOrder'#2#0#0#0#7'TButton'#10'btnAddLine'
-  +#4'Left'#3#216#0#6'Height'#2#24#3'Top'#2#8#5'Width'#2'4'#25'BorderSpacing.In'
-  +'nerBorder'#2#4#7'Caption'#6#4'Line'#7'OnClick'#7#15'btnAddLineClick'#8'TabO'
-  +'rder'#2#1#0#0#7'TButton'#10'btnAddArea'#4'Left'#2'h'#6'Height'#2#24#3'Top'#2
-  +#8#5'Width'#2'4'#25'BorderSpacing.InnerBorder'#2#4#7'Caption'#6#4'Area'#7'On'
-  +'Click'#7#15'btnAddAreaClick'#8'TabOrder'#2#2#0#0#7'TButton'#9'btnAddBar'#4
-  +'Left'#3#160#0#6'Height'#2#24#3'Top'#2#8#5'Width'#2'4'#25'BorderSpacing.Inne'
-  +'rBorder'#2#4#7'Caption'#6#3'Bar'#7'OnClick'#7#14'btnAddBarClick'#8'TabOrder'
-  +#2#3#0#0#9'TCheckBox'#8'cbLegend'#4'Left'#3#128#1#6'Height'#2#17#3'Top'#2#8#5
+  +'rt'#6'Chart1'#6'Height'#3#136#1#5'Width'#3'I'#2#21'BottomAxis.Grid.Color'#7
+  +#6'clGray'#21'BottomAxis.Grid.Style'#7#5'psDot'#23'BottomAxis.Grid.Visible'#9
+  +#28'BottomAxis.Title.Font.Height'#2#245#26'BottomAxis.Title.Font.Name'#6#13
+  +'MS Sans Serif'#16'Foot.Brush.Color'#7#9'clBtnFace'#15'Foot.Font.Color'#7#5
+  +'clRed'#16'Foot.Font.Height'#2#243#14'Foot.Font.Name'#6#13'MS Sans Serif'#15
+  +'Foot.Font.Style'#11#6'fsBold'#0#17'Foot.Text.Strings'#1#6#25'This a LeftAli'
+  +'gned Footer'#0#13'Frame.Visible'#9#19'LeftAxis.Grid.Color'#7#6'clGray'#19'L'
+  +'eftAxis.Grid.Style'#7#5'psDot'#21'LeftAxis.Grid.Visible'#9#20'LeftAxis.Titl'
+  +'e.Angle'#2'Z'#26'LeftAxis.Title.Font.Height'#2#245#24'LeftAxis.Title.Font.N'
+  +'ame'#6#13'MS Sans Serif'#18'Legend.Font.Height'#2#245#16'Legend.Font.Name'#6
+  +#13'MS Sans Serif'#17'Title.Brush.Color'#7#9'clBtnFace'#16'Title.Font.Color'
+  +#7#6'clBlue'#17'Title.Font.Height'#2#245#15'Title.Font.Name'#6#13'MS Sans Se'
+  +'rif'#18'Title.Text.Strings'#1#6#20'Centered Chart Title'#0#13'Title.Visible'
+  +#9#5'Align'#7#8'alClient'#11'ParentColor'#8#0#5'TLine'#13'Chart1LineHor'#12
+  +'ShowInLegend'#8#9'Pen.Style'#7#6'psDash'#11'SeriesColor'#7#7'clBlack'#0#0#5
+  +'TLine'#14'Chart1LineVert'#12'ShowInLegend'#8#9'LineStyle'#7#10'lsVertical'#9
+  +'Pen.Style'#7#6'psDash'#11'SeriesColor'#7#7'clBlack'#0#0#0#6'TPanel'#6'Panel'
+  +'1'#6'Height'#2'f'#3'Top'#3#136#1#5'Width'#3'I'#2#5'Align'#7#8'alBottom'#12
+  +'ClientHeight'#2'f'#11'ClientWidth'#3'I'#2#8'TabOrder'#2#0#0#6'TLabel'#6'lbl'
+  +'Add'#4'Left'#2#13#6'Height'#2#14#3'Top'#2#10#5'Width'#2#24#7'Caption'#6#4'A'
+  +'dd:'#11'ParentColor'#8#0#0#6'TLabel'#8'lblClear'#4'Left'#2#13#6'Height'#2#14
+  +#3'Top'#2'('#5'Width'#2#30#7'Caption'#6#6'Clear:'#11'ParentColor'#8#0#0#6'TL'
+  +'abel'#11'lblAddCount'#4'Left'#3' '#1#6'Height'#2#14#3'Top'#2#8#5'Width'#2':'
+  +#7'Caption'#6#12'Multiple add'#11'ParentColor'#8#0#0#6'TLabel'#12'lblMarkSty'
+  +'le'#4'Left'#2'0'#6'Height'#2#14#3'Top'#2'P'#5'Width'#2'N'#7'Caption'#6#15'A'
+  +'dd with marks:'#11'ParentColor'#8#0#0#6'TLabel'#11'lblReticule'#4'Left'#3'h'
+  +#1#6'Height'#2#14#3'Top'#2'P'#5'Width'#2'+'#7'Caption'#6#9'Reticule:'#11'Par'
+  +'entColor'#8#0#0#7'TButton'#9'btnAddPie'#4'Left'#2'0'#6'Height'#2#24#3'Top'#2
+  +#8#5'Width'#2'4'#25'BorderSpacing.InnerBorder'#2#4#7'Caption'#6#3'Pie'#7'OnC'
+  +'lick'#7#14'btnAddPieClick'#8'TabOrder'#2#0#0#0#7'TButton'#10'btnAddLine'#4
+  +'Left'#3#216#0#6'Height'#2#24#3'Top'#2#8#5'Width'#2'4'#25'BorderSpacing.Inne'
+  +'rBorder'#2#4#7'Caption'#6#4'Line'#7'OnClick'#7#15'btnAddLineClick'#8'TabOrd'
+  +'er'#2#1#0#0#7'TButton'#10'btnAddArea'#4'Left'#2'h'#6'Height'#2#24#3'Top'#2#8
+  +#5'Width'#2'4'#25'BorderSpacing.InnerBorder'#2#4#7'Caption'#6#4'Area'#7'OnCl'
+  +'ick'#7#15'btnAddAreaClick'#8'TabOrder'#2#2#0#0#7'TButton'#9'btnAddBar'#4'Le'
+  +'ft'#3#160#0#6'Height'#2#24#3'Top'#2#8#5'Width'#2'4'#25'BorderSpacing.InnerB'
+  +'order'#2#4#7'Caption'#6#3'Bar'#7'OnClick'#7#14'btnAddBarClick'#8'TabOrder'#2
+  +#3#0#0#9'TCheckBox'#8'cbLegend'#4'Left'#3#128#1#6'Height'#2#17#3'Top'#2#8#5
   +'Width'#2'8'#7'Caption'#6#6'Legend'#8'OnChange'#7#14'cbLegendChange'#8'TabOr'
   +'der'#2#4#0#0#9'TCheckBox'#12'cbBottomAxis'#4'Left'#3#128#1#6'Height'#2#17#3
   +'Top'#2#24#5'Width'#2'K'#7'Caption'#6#11'Bottom Axis'#7'Checked'#9#8'OnChang'
diff --git a/components/tachart/demo/unit1.pas b/components/tachart/demo/unit1.pas
index 46f722d255..79ad5f2d28 100644
--- a/components/tachart/demo/unit1.pas
+++ b/components/tachart/demo/unit1.pas
@@ -85,7 +85,7 @@ var
   i: Integer;
 begin
   for i := 0 to Chart1.SeriesCount - 1 do
-    Chart1.Series[i].ZPosition := Ord(Chart1.Series[i] <> ASeries);
+    Chart1.Series[i].ZPosition := Ord(Chart1.Series[i] = ASeries);
 end;
 
 procedure TForm1.btnAddAreaClick(Sender: TObject);
diff --git a/components/tachart/tagraph.pas b/components/tachart/tagraph.pas
index e968c92ce6..3c61c5af01 100644
--- a/components/tachart/tagraph.pas
+++ b/components/tachart/tagraph.pas
@@ -299,7 +299,7 @@ uses
 function CompareZPosition(AItem1, AItem2: Pointer): Integer;
 begin
   Result :=
-    TBasicChartSeries(AItem2).ZPosition - TBasicChartSeries(AItem1).ZPosition;
+    TBasicChartSeries(AItem1).ZPosition - TBasicChartSeries(AItem2).ZPosition;
 end;
 
 procedure Register;