|ConnectionID||(Required) Specifies a connection to a data source that is defined in the Settings.
For elements connecting to relational databases, default is the first Connection element in _settings.lgx.|
|ID||The ID attribute is a pervasive attribute that uniquely identifies an element within a definition file. The ID needs to be a unique value within the definition.|
|MapLayerControlCaption||The Map Layer Control Caption attribute sets the text to be displayed for this map layer in the map layer control when two or more layers are present.
The default value is the Connection ID.|
|ShowLayerAsOverlay||Displays the layer in the map layer control as a checkbox instead of a radio button. This option is desirable for layers with transparent backgrounds because it allows stacking multiple layers. For instance you could have a "Satellite" layer as your selected base layer, and a "Traffic" layer shown on top of it as an "Overlay".
The default value is "False".|