- Google KML Reader/Writer
- Google KML Quick Facts
- Resource Traversal
- Reader Parameters
- Writer Parameters
- Feature Types
- Writer Pipelines
- Atom Metadata
- Style Management and Common Styles
- Document Element Omission
- Raw Text
- Update Mode
- Feature Representation
- KML Dataset Structure
- File Structure
- Identifying Elements
- Documents and Folders
- Tours
- Extended Data
- User Defined Schema
- Layers and Feature Type Fanout
- Feature Attributes
- Geometry
- 3D
- Fixed Schema
- Common Element Attributes
- Common Format Attributes
- NetworkLinkControl
- Document
- Folder
- Placemark
- ScreenOverlay
- GroundOverlay
- PhotoOverlay
- NetworkLink
- Style
- StyleMap
- Tour
- AnimatedUpdate
- FlyTo
- SoundCue
- TourControl
- Wait
You are here: Popular Formats > Google KML Reader/Writer > Update Mode > Ancillary <NetworkLinkControl> Elements
Each <kml> element may contain zero or one <NetworkLinkControl> elements and zero or one <Document> elements. If a <Document> element and <NetworkLinkControl> element are both present, then the <NetworkLinkControl> element can be used to either update the contents of a document other than it’s sibling <Document>, or it can be used to change certain parameters of the calling <NetworkLink>, such as refresh time, link name, or expiration.