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Stable version 2.0.3 (Compatible with OutSystems 11)
Other versions available for 10
Uploaded on 01 June 2021 by 
 (10 ratings)


Multiple Selection using checkbox on a combo box records.
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The Multiple Selection component allows you to choose several options in a dropdown.
In this demo you have several examples of how to implement the various features.

This component uses the slim select library that can be found here Currently using the version 1.27.0 

The component also has options that allow you to create various types of dropdowns with different functions.


This component will modify a given combo box, by prefixing a check box to allow multiple selection. This component has more features as well.

For example, you can define the maximum number of options that can be selected. This can be done by passing an integer value to a simple input variable.


Features List:

  • Default: Allows you to select and unselect the options you want.
  • Limit the number of options that can be selected: Allows you to select and unselect the options you want with a limit on the number of options that can be selected.
  • Not closed on select: Allows you to select and unselect the options you want, keeping the ComboBox open until you click on another area.
  • Preselect options: Allows you to preselect the options and then unselect and select again.
  • Preselect and disable options: Allows you to preselect and deactivate the desired options, and you cannot select them again, but can still unselect them.

Release notes (2.0.3)

Demo application created

Documentation created

Fixed HTML Warnings

Fixed issue reported here (, where the hidden input is initially filled with the Text to display on the dropdown  instead of the Value

Screenshots added

Update Slim Select library to the version 1.27.0

Reviews (2)
in version 2.0.1
The usage of this component is not clear. There is no working demo or documentation on how to implement this.
in version 2.0.1
it should be better to have some demo or document that explains how to use it