property Items.LockedItemCount(Alignment as VAlignmentEnum) as Long
Specifies the number of items fixed on the top or bottom side of the control.

TypeDescription
Alignment as VAlignmentEnum A VAlignmentEnum expression that specifies the top or bottom side of the control.
Long A long expression that indicates the number of items locked to the top or bottom side of the control. 
A locked or fixed item is always displayed on the top or bottom side of the control no matter if the control's list is scrolled up or down. Use the LockedItemCount property to add or remove items fixed/locked to the top or bottom side of the control. Use the LockedItem property to access a locked item by its position. Use the ShowLockedItems property to show or hide the locked items. Use the CellValue property to specify the caption for a cell. Use the CountLockedColumns property to lock or unlock columns in the control. Use the ItemBackColor property to specify the item's background color. Use the ItemDivider property to merge the cells in the same item. Use the MergeCells method to combine one or more cells in a single cell.

The following screenshot shows a bottom-locked item that displays the total value of the Freight column:

The following VB sample displays some locked items to the top and bottom side of the control ( before running the sample, please make sure that the control contains some columns:

With G2antt1
    .BeginUpdate
    .DrawG2anttLines = exHLines
    .ShowLockedItems = True
    If .Columns.Count > 0 Then
        With .Items
            Dim h As EXGRIDLibCtl.HITEM, a As EXGRIDLibCtl.VAlignmentEnum
            a = exTop
            .LockedItemCount(a) = 2
            h = .LockedItem(a, 0)
            .CellValue(h, 0) = "This is an item <b>fixed</b> to the top side of the control."
            .CellValueFormat(h, 0) = exHTML
            .ItemHeight(h) = 24
            .ItemDivider(h) = 0
            .ItemDividerLine(h) = EmptyLine
            h = .LockedItem(a, 1)
            .CellValue(h, 0) = "Total"
            .CellBold(h, 0) = True
            .CellValue(h, 1) = "$1000"
            .CellEditorVisible(h, 1) = False
            .CellHAlignment(h, 1) = RightAlignment
            
            a = exBottom
            .LockedItemCount(a) = 1
            h = .LockedItem(a, 0)
            .CellValue(h, 0) = "This is an item <b>fixed</b> to the bottom side of the control."
            .CellValueFormat(h, 0) = exHTML
            .CellHAlignment(h, 0) = CenterAlignment
            .ItemHeight(h) = 24
            .ItemDivider(h) = 0
            .ItemDividerLine(h) = EmptyLine
            .ItemBackColor(h) = G2antt1.BackColorHeader
            
        End With
    End If
    .EndUpdate
End With
The following C++ sample adds an item that's locked to the top side of the control: 
#include "Items.h"
m_grid.BeginUpdate();
CItems items = m_grid.GetItems();
items.SetLockedItemCount( 0 /*exTop*/, 1);
long i = items.GetLockedItem( 0 /*exTop*/, 0 );
COleVariant vtItem(i), vtColumn( long(0) );
items.SetCellValue( vtItem, vtColumn, COleVariant( "<b>locked</b> item" ) );
items.SetCellValueFormat( vtItem, vtColumn, 1/*exHTML*/ );
m_grid.EndUpdate();

The following VB.NET sample adds an item that's locked to the top side of the control:

With AxG2antt1
    .BeginUpdate()
    With .Items
        .LockedItemCount(EXGRIDLib.VAlignmentEnum.exTop) = 1
        Dim i As Integer
        i = .LockedItem(EXGRIDLib.VAlignmentEnum.exTop, 0)
        .CellValue(i, 0) = "<b>locked</b> item"
        .CellValueFormat(i, 0) = EXGRIDLib.CaptionFormatEnum.exHTML
    End With
    .EndUpdate()
End With

The following C# sample adds an item that's locked to the top side of the control:

axG2antt1.BeginUpdate();
EXGRIDLib.Items items = axG2antt1.Items;
items.set_LockedItemCount(EXGRIDLib.VAlignmentEnum.exTop, 1);
int i = items.get_LockedItem(EXGRIDLib.VAlignmentEnum.exTop, 0);
items.set_CellValue(i, 0, "<b>locked</b> item");
items.set_CellValueFormat(i, 0, EXGRIDLib.CaptionFormatEnum.exHTML);
axG2antt1.EndUpdate();

The following VFP sample adds an item that's locked to the top side of the control:

with thisform.G2antt1
	.BeginUpdate()
		With .Items
			.LockedItemCount(0) = 1
			.DefaultItem = .LockedItem(0, 0)
			.CellValue(0, 0) = "<b>locked</b> item"
			.CellValueFormat(0, 0) = 1 && EXGRIDLib.ValueFormatEnum.exHTML
		EndWith
	.EndUpdate()
endwith