Path to the directory to use for storing the index files.
Path to the directory to use for storing the index files. Default value is null.
IndexDirectory must be set before calling any other method in this class. The directory can be local or in a network drive but must accessible for both reading and writing. The engine will try to create the directory set in this value if it does not exist.
For more information, refer to Speeding Up Forms Recognition Using the Full Text Search Feature.