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How to add thumbnails in a choice list, as we have in the bootstrap component to choose a predefined grid

choicelist-image.png

Answer

Let's imagine such a definition:

[jnt:test] > jnt:content, jmix:basicContent
 - testProp  (string, choicelist[resourceBundle,moduleImage='png']) = 'val1' autocreated < 'val1','val2','val3'

This will declare a "test" component with a testProp property. This property uses the choicelist with 2 initializers, resourceBundle and moduleImage.

resourceBundle

The resourceBundle initializer will allow you to translate the values using the module properties file

jnt_test=My test component
jnt_test.testProp=My property
jnt_test.testProp.val1=Value 1
jnt_test.testProp.val2=Value 2
jnt_test.testProp.val3=Value 3

moduleImage

The moduleImage initializer will tell the engine to load thumbnails for each value, based on the value name, meaning that you will have to create an img folder in your module src/main/resources/img and then put one png image per value

  • src/main/resources/img/val1.png
  • src/main/resources/img/val2.png
  • src/main/resources/img/val3.png

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