DeleteValue

Inside Macintosh: OpenDoc Class Reference /: Part 1 - Classes and Methods / ODStorageUnitView

DeleteValue
The DeleteValue method deletes data from the focused value, starting at the offset (inclusive).
void DeleteValue (in ODULong length);
length
The number of bytes of data to delete, expressed as an unsigned 32-bit value.

DISCUSSION
You call this method to delete data from the focused value. If that value is a promise value, the promise is fulfilled before the data is deleted. This method starts deleting data at the current offset and stops after deleting the number of bytes specified by the length parameter or after reaching the end of the data in the currently focused value, whichever comes first.

EXCEPTIONS

kODErrUnfocusedStorageUnit
The focus context of this storage-unit view is not a value.
If the storage-unit cursor for this storage-unit view does not represent a legal focus context for the storage unit that created this storage-unit view, this method throws exceptions raised by the FocusWithCursor method of that storage unit.

SEE ALSO
The ODStorageUnitView::InsertValue method (page 749).
The ODStorageUnitView::Remove method (page 754).