Gets or sets the name of the DWG key table to use as primary keys for either feature properties, external database links, or object data in the Autodesk DWG.
If this property is modified successfully, it automatically sets the layer's rebuild flag to True. See Rebuild for details.
When changing the key table, several other properties may also have to be updated.
Note that for write operations, this property does not work during a busy state. For additional information, refer to "Handling Busy State and Map Refresh" chapter in the Autodesk MapGuide Developer's Guide.
-1 (busy): For write operations only.