Creates a new instance and assigns SourceType
            
 Declaration Syntax
 Declaration Syntax| C# | Visual Basic | Visual C++ | 
public FileSystemFolderBasedSourceRecord( string localFolderPath, string virtualPath, string extensionData )
Public Sub New ( _ localFolderPath As String, _ virtualPath As String, _ extensionData As String _ )
public: FileSystemFolderBasedSourceRecord( String^ localFolderPath, String^ virtualPath, String^ extensionData )
 Parameters
 Parameters- localFolderPath (String)
- The path of the folder which will be scanned for documents - may be absolute or relative to the index directory.
- virtualPath (String)
- The virtual path corresponding to localFolderPath that will enable the document to be read via HTTP
- extensionData (String)
- Used internally