property Items.CellImages ([Item as Variant], [ColIndex as Variant]) as Variant
Specifies an additional list of icons shown in the cell.

TypeDescription
Item as Variant A long expression that indicates the item's handle.
ColIndex as Variant A long expression that indicates the column's index, a string expression that indicates the column's caption or the column's key. 
Variant A string expression that indicates the list of icons shown in the cell. For instance, the "1,2,3" indicates that the icons 1, 2, 3 are displayed in the cell.
The CellImage property assign a single icon to the cell. Instead if multiple icons need to be assigned to a single cell you have to use the CellImages property. The CellImages property takes a list of additional icons and display them in the cell. The list is separated by ','  and should contain numbers that represent indexes to Images list collection. Use the Images or ReplaceIcon method to assign icons at runtime. Use the Def( exCellDrawPartsOrder) property to specify the order of the drawing parts inside the cell. The ImageSize property defines the size (width/height) of the icons within the control's Images collection.

The following VB sample assign the first and third icon to the cell:

With Grid1.Items
        .CellImages(.ItemByIndex(0), 1) = "1,3"
End With

The following VB sample displays the index of icon being clicked, when the cell contains multiple icons ( MouseUp event ):

Private Sub Grid1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Dim i As HITEM, h As HitTestInfoEnum, c As Long
    With Grid1
        i = .ItemFromPoint(-1, -1, c, h)
    End With
    If (i <> 0) Then
        If exHTCellIcon = (h And exHTCellIcon) Then
            Debug.Print "The index of icon being clicked is: " & CLng((h And &HFFFF0000) / 65536)
        End If
    End If
End Sub

The following C++ sample assigns the first and the third icon to the cell:

#include "Items.h"
CItems items = m_grid.GetItems();
items.SetCellImages( COleVariant( items.GetFocusItem() ), COleVariant( (long)m_grid.GetFocusColumnIndex() ), COleVariant( "1,3" ) );

The following C++ sample displays the index of icon being clicked:

#include "Items.h"
void OnMouseUpGrid1(short Button, short Shift, long X, long Y) 
{
	CItems items = m_grid.GetItems();
	long c = 0, hit = 0, h = m_grid.GetItemFromPoint( X, Y, &c, &hit);
	if ( h != 0 )
	{
		if ( ( hit & 0x44 /*exHTCellIcon*/ ) == 0x44 )
		{
			CString strFormat;
			strFormat.Format( "The index of icon being clicked is: %i\n", (hit >> 16) );
			OutputDebugString( strFormat );
		}
	}
}

The following VB.NET sample assigns the first and the third icon to the cell:

With AxGrid1.Items
    .CellImages(.FocusItem, AxGrid1.FocusColumnIndex) = "1,3"
End With

The following VB.NET sample displays the index of icon being clicked:

Private Sub AxGrid1_MouseUpEvent(ByVal sender As Object, ByVal e As AxEXGRIDLib._IGridEvents_MouseUpEvent) Handles AxGrid1.MouseUpEvent
    With AxGrid1
        Dim i As Integer, c As Integer, hit As EXGRIDLib.HitTestInfoEnum
        i = .get_ItemFromPoint(e.x, e.y, c, hit)
        If (Not (i = 0)) Then
            Debug.WriteLine("The index of icon being clicked is: " & (hit And &HFFFF0000) / 65536)
        End If
    End With
End Sub

The following C# sample assigns the first and the third icon to the cell:

axGrid1.Items.set_CellImages(axGrid1.Items.FocusItem, axGrid1.FocusColumnIndex, "1,3");

The following C# sample displays the index of icon being clicked:

private void axGrid1_MouseUpEvent(object sender, AxEXGRIDLib._IGridEvents_MouseUpEvent e)
{
	int c = 0;
	EXGRIDLib.HitTestInfoEnum hit;
	int i = axGrid1.get_ItemFromPoint(e.x, e.y, out c, out hit);
	if ((i != 0))
	{
		if ((Convert.ToUInt32(hit) & Convert.ToUInt32(EXGRIDLib.HitTestInfoEnum.exHTCellIcon)) == Convert.ToUInt32(EXGRIDLib.HitTestInfoEnum.exHTCellIcon))
		{
			string s = axGrid1.Items.get_CellCaption(i, c).ToString();
			s = "Cell: " + s + ", Icon's Index: " + (Convert.ToUInt32(hit) >> 16).ToString();
			System.Diagnostics.Debug.WriteLine(s);
		}
	}
}

The following VFP sample assigns the first and the third icon to the cell:

with thisform.Grid1.Items
	.DefaultItem = .FocusItem
	.CellImages(0,thisform.Grid1.FocusColumnIndex) = "1,3"
endwith

The following VFP sample displays the index of icon being clicked:

*** ActiveX Control Event ***
LPARAMETERS button, shift, x, y

local c, hit
c = 0
hit = 0
with thisform.Grid1
	.Items.DefaultItem = .ItemFromPoint( x, y, @c, @hit )
	if ( .Items.DefaultItem <> 0 )
		if ( bitand( hit, 68 )= 68 )
			wait window nowait .Items.CellCaption( 0, c ) + " " + Str( Int((hit - 68)/65536) )
		endif
	endif
endwith

Add the code to the MouseUp, MouseMove or MouseDown event