[mapguide][MG91][New] Base layer groups hidden in legend don't display

[Walt Welton-Lair]

You can view the artifact detail at the following URL:

    https://mapguide.osgeo.org/servlets/Scarab/id/MG91

Type
 Defect

Artifact ID
 MG91 (Base layer groups hidden in legend don't display)

Reported by
 Walt Welton-Lair
 waltweltonlair (walt.welton-lair at autodesk.com)

New artifact details:
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- Defect Severity set to new value
  High
- Operating system set to new value
  All
- Priority set to new value
  P2
- Platform set to new value
  All
- Version set to new value
  1.0.0
- Artifact Status set to new value
  New
- Developer Notes set to new value
  The mapframe javascript determines if the map has tiles by checking if the legend control has any base groups.  See the "delayedInit" function in ajaxmappane.templ.

When groups are set to not display in the legend, then they're not added to the legend control, and then the check fails.

One way to fix this is to always add all groups (regular and base) to the legend control, but use their "show in legend" flag to set their visibility in the control.  That way the rest of the code still has access to the complete list of groups.

- Component set to new value
  Web Server Extensions
- Summary set to new value
  Base layer groups hidden in legend don't display
- Description set to new value
  If you create a base layer group but turn off its show in legend flag, then the base layer group does not display.

- Artifact created
- Steps to Reproduce set to new value
  1) Create a map definition in Studio
2) Create a group in the "Base Layers..." section of the map editor
3) Uncheck the "Group is visible in legend" checkbox
4) Add a layer to the group
5) Preview the map (using the AJAX viewer)

=> The base layer group does not display

- Subcomponent set to new value
  AJAX Viewer

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