Select requires a title on the mapsource layer

[brentfraser]

The "Select from" drop down combo box contains a list of selectable layers when the user is doing a "select" operation. The list of names is populated from the mapsource->layer->title (if any), not the Catalog->layer-title. Currently if the mapsource->layer->title doesn't exist, the combo box has a blank entry.

I think the rule should be to use the first found of:

• Catalog->layer-title
• mapsource->layer->title
• mapsource->layer->name

[klassenjs]

I don't think Catalog->layer->title is doable because catalog layers are many-to-many (and not one-to-one) with mapsource layers and the mapsource layers are what is actually queryable.

Although, IIRC Catalog->layer->title can inherit from mapsource->layer->title if you don't want to repeat yourself.

[brentfraser]

I see your point. I was trying to put the Catalog label in a logical place (Catalog->layer->title) , but now my rules when creating mapbooks are:

1. Add the title on the mapsource-layer
2. If using multiple mapsource layers for one Catalog entry, put an additional title on the Catalog->layer

I'll have to test the multiple mapsource conditions. Thanks Jim!

[brentfraser]

so after a little testing:

The Catalog Label uses Catalog->layer->title. If not defined, it uses the first title found in the list of mapsources in the Catalog->layer-src definition. If no titles are found it uses an empty string. It never uses mapsource->layer->title.

The Select combo box (and Identify results) prefers mapsource->layer->title. If not defined it uses mapsource->title. If no titles on either, is uses an empty string (Identify shows "null" as a header).

So based on the above, the "best practice" is to use a title on the mapsource. I need to add that to the doc.