search

eclipse-birt / birt

Eclipse BIRT™ The open source reporting and data visualization project.
http://www.eclipse.org/birt
Eclipse Public License 2.0
458 stars 394 forks source link

Combo box and List box which allow multiple values - reportContext.getParameterDisplayText() return null #1967

Closed jarorehu closed 1 week ago

jarorehu commented 2 weeks ago

Hello all, for parameters with multiple values - combo or list box - you can use this code to get selected values:

reportContext.getParameterValue("parm1").join(",")
or simple
params["parm1"].value.join(",")

But this doesn't work for displayed text for options (labels)

reportContext.getParameterDisplayText("parm1").join(",")

TypeError: Cannot call method "join" of null

Function getParameterDisplayText() return value only for combo without "allow returning single value". Is it bug or is there some simple option to get Text for multiple checked values?

Regards

speckyspooky commented 2 weeks ago

I started a small investigation and of course currently this option is unsupported. It is not a bug, the source code contains a hint that the display text is unsupported of multi selection parameters.

speckyspooky commented 1 week ago

Currently I try to figure out the reason and will check if there is an improvement possible.

speckyspooky commented 1 week ago

The situation till BIRT 4.17 is like discribed that the feature is unsupported. With ticket #1981 an enhancement is planned and can be provied in best case with BIRT 4.18.