VirtualOverlap Property
Applies To
fpSpread control
Description
Sets or returns the number of retrieved rows to keep in the virtual buffer when virtual mode is on.
Syntax
long CSpreadSheet::GetVirtualOverlap( );
void CSpreadSheet::SetVirtualOverlap(long value);
[form.]fpSpread.VirtualOverlap[ = value&]
Remarks
The default value for the VirtualOverlap property is 0.
The overlap area is the number of previously retrieved rows kept in memory when a new buffer is read. The VirtualOverlap property specifies the maximum number of records to be retained in memory.
This setting is applied to the current sheet setting unless you first set the Sheet property to specify the sheet for which you are setting the property.
The VirtualOverlap property does not have an effect unless the VirtualMode property is set to True.
Use the VirtualMode property to turn virtual mode on or off.
Spread Designer
Choose the Book menu, then the Virtual Mode menu, and then type a number in the Memory Max Rows edit box in the Settings group box in the Virtual Mode dialog box.
Data Type
Long Integer
See Also
Sheet, VirtualCurRowCount, VirtualCurTop, VirtualMaxRows, VirtualMode, VirtualRows properties
DLL Correspondence
SSVGetBufferSize, SSVSetBufferSize functions