GeoDataSource .NET Control - Version 1.0 The GeoDataSource .NET Control queries the complete GeoDataSource World Cities Database (Basic, Premium and Gold Edition) with Access or SQL database. Developers use the software object to query database by city and also calculate the distance between two cities or two latitude and longitude sets. This component will speed up the integration of the GeoDataSource database into their projects. This control is written for .NET 1.1 and above.