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= Encourage/Discourage Upload =

[[Image(source:trunk/images/no_upload.svg)]] **([ExpertMode expert mode] only)**

An OSM data layer can have three states regarding its upload behavior, which are explained in the table:

||= '''state''' =||= '''code in the osm file''' =||= '''behavior on upload''' =||= '''how to set''' =||
|| true || `upload='true'` || no special behavior || by deactivating the Discourage upload button in the [wiki:Help/Menu/OSMLayer context menu] of the osm data layer  ||
|| false || `upload='false'` || a warning box appears if you really want to upload the layer || by activating the Discourage upload button in the context menu of the osm data layer ||
|| never || `upload='never'` || the upload button is greyed out so the upload is impossible || only by manually editing the osm file in an external text editor ||

The warning when you try to upload an "`upload='false'`" layer:

[[Image(upload_false.png)]]

The idea behind these states is to prevent to accidentally upload data which is not appropriate for the osm database (e.g. some fictional test data).

Note that you'll only get a warning about [Help/Dialog/UnsavedChangesDialog unsaved changes] of layers with the states false or never if the state was already set in the osm file ''before'' adding the layer to JOSM.

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