List Widget


The List Widget is available in software versions from AIMMS 4.74 onwards.

The List Widget allows you to show a generated list of (grouped) items and connect those, if required, with actions. These items can e.g. represent a set of tasks, or a custom legend. Each group of items can have a title that is shown as a header. The items in the list can be interactive, meaning that some procedures can be configured to be executed upon clicking the items. As shown below in the examples and specification, each item has various properties to give the end user guidance such as a text description and an icon with color.


Creating a List Widget

The List widget can be added to a page using the same steps as for any other widget, see adding a new widget. After adding the list widget in the Widget Manager one can click on its Settings wheel in order to configure the widget.

In the settings options editor one can find the following sections:

  • List Settings: List Groups and the List Group Items can be configured here.

  • Widget Actions: Widget Actions for the list widget can be configured here.

  • Miscellaneous: Title and Visibility can be controlled here.

  • Advanced: Advanced options for this widget are available here.

To configure list groups and their items in the widget you will need to create two string parameters. The first string parameter will configure the list groups with titles and tooltips, while the second string parameter will configure the items for each of these list groups.

Configuring List Groups

For illustration, let’s call the first sting parameter


This string parameter is indexed by the ExtensionOrder set with the index indexListGroupOrder and the ListGroupSpecification set with the index indexListGroupSpec. This string parameter is used to define the number of list groups, their respective titles and tooltips. The values of this string parameter may be initialized in the Initial Data attribute, in a procedure or manually, by right clicking the string parameter and clicking on the Data option in order to open its data page. There you can add the details for the list groups, their titles and their tooltips:


The values in the example above indicate that there are 3 list groups.

Configuring Items for Lists

Create the second string parameter, let’s call it


indexed over both indices of the ExtensionOrder set and over the index of the ListGroupItemsSpecification set. This string parameter is used to define the items for each list group which has been defined in the MyListsGroups string parameter.



The indices must follow the same order as described in the string parameter MyListGroupItems(webui::indexListGroupOrder,webui::indexNoOfListItems,webui::indexListGroupItemsSpec)

There is no limit for the number of items each list group may have. As a guideline, AIMMS recommends no more than 10 items per list group.

In order to inspect the values, right click on the MyListGroupItems string parameter and click on the Data option in order to open its Data page:


The data entered in the above illustration is for the 1st List Group which was configured in “MyListsGroups” string parameter, that is, the “Today” list group (with 5 items defined).

In order to configure the items for the other list groups, one may just select the respective value for indexListGroupOrder at the top in the Data page.

For instance, 3 items may be configured for the 2nd list group “Next Week” as follows:


Similarly, an example of configuring 3 items for the 3rd list group “Legend” is illustrated here:


Configuring the string parameters in the List Widget

To display the configured List Groups and their respective items in the list widget, click on the widget settings and add the configured string parameters to the respective fields as illustrated below:


Once the string parameters are added in their respective fields, the items will appear under their respective list groups.


If the list groups and items exceed the widgets height, a scroll bar will appear.

For list group items that are configured with a procedure and the state as “Active”, when the user hovers over those list item, the text is highlighted in blue and the cursor changes to a pointer indicating to the user that an action can be executed.


If a list group items that are configured with a procedure and the state as “Inactive”, the text is grey, the cursor does not change and clicking will not execute the procedure.


The list widget can be added on all page types, i.e Regular pages, Side Panels and Dialog Pages.


Slicing the List Group and List Group Items

You can also create lists for different users and then slice the data based on the current user. You can simply extend the string parameter with an additional index of the Users set. Then slice the data based on the element parameter for the selected user.

Lets say we have a set Users with the index indexUsers. You can add this index to the MyListsGroups and MyListGroupItems string parameters as illustrated below.


You can then slice these string parameters on indexUsers with an element parameter that determines the current user.


It is currently not possible to slice on the key indices, i.e webui::indexListGroupOrder, webui::indexNoOfListItems, webui::indexListGroupSpec and webui::indexListGroupItemsSpec defined in the string parameters.