The BGMGrid object returns the following error codes - Documentation

Error code	Symbolic name	Description
0x80004003	E_POINTER	an invalid pointer was used
0x8007000E	E_OUTOFMEMORY	the method failed to allocate necessary memory
0x80070057	E_INVALIDARG	one or more arguments are invalid
0x80004005	E_FAIL	the method failed
0x8FFC0001	E_GRID	general grid error
0x8FFC0014	E_GRID_SAMENAME	a column with such name already exists
0x8FFC0015	E_GRID_INVALIDNAME	the column name is invalid
0x8FFC0016	E_GRID_CANCELLED	the operation has been cancelled
0x8FFC001E	E_GRID_OUTOFRANGE	the value is out of range
0x8FFC0028	E_GRID_NOTFOUND	the specified item was not found
0x8FFC0032	E_GRID_FILENOTFOUND	the file was not found
0x8FFC0033	E_GRID_FILEOPENERROR	the file cannot be opened
0x8FFC0034	E_GRID_FILEREADERROR	the file cannot be read
0x8FFC0035	E_GRID_BADCHUNK	bad chunk format
0x8FFC0036	E_GRID_CHUNKERROR	chunk handling error
0x8FFC0037	E_GRID_FILEWRITEERROR	the file cannot be written
0x8FFC0038	E_GRID_XMLDOCERROR	the XML document cannot be created
0x8FFC0039	E_GRID_XMLFILEERROR	the XML file cannot be created
0x8FFC003A	E_GRID_XMLREADERROR	the XML file cannot be read
0x8FFC003B	E_GRID_XMLFMTERROR	invalid XML format
0x8FFC003C	E_GRID_CSVREADERROR	the CSV file cannot be read
0x8FFC003D	E_GRID_CSVWRITEERROR	the CSV file cannot be written
0x8FFC0064	E_GRID_ALREADYEXISTS	the specified item already exists
0x8FFC00A0	E_GRID_INVALIDPROP	unknown property identifier
0x8FFC00AA	E_GRID_BADCHARSET	an invalid font charset was specified
0x8FFC00B4	E_GRID_ROWINGROUP	the row is in a group
0x8FFC00BE	E_GRID_HIGHROW	the row is too high
0x8FFC00C8	E_GRID_WIDECOLUMN	the column is too wide
0x8FFC00D2	E_GRID_WRONGDT	the data type is wrong
0x8FFC00D3	E_GRID_INVALIDRANGE	an invalid range was specified
0x8FFC00DC	E_GRID_EMPTYGRID	there is no data to print
0x8FFC00DD	E_GRID_INVALIDVAR	the variable name is invalid
0x8FFC00DE	E_GRID_VARNOTFOUND	the variable does not exists