List builder
user interface element
A list builder, also known as a dual list, dual listbox, disjoint listbox, list shuttle, shuttle, swaplist, transfer list and two sided multi select, is a graphical control element in which a user can select a set of text values by moving values between two list boxes, one representing selected values and the other representing unselected ones. Moving values back and forth is usually accomplished selecting values within one of the two lists and clicking buttons reading "Add" and "Remove", rather than by dragging and dropping them. (The buttons may alternatively be labeled ">" and "<" to visually indicate moving an item from the left list to the right, or vice versa.) Less traditionally, there may instead be an add or delete button individually next to each item. The widget can sometimes also include the ability to rearrange the selected values. There may also be buttons to add or remove all values, or a text field to filter the list.
Microsoft Windows 7 design guidelines state that a list builder may be the right design choice if one wants to allow choosing multiple options from a list, to allow reordering the items, and/or to compactly show all the currently selected items.
Begin with the source’s own compact description: “List builder” is user interface element. The dossier treats that line as a proposition to test through List, builder and user, not as a finished interpretation.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 10, 2025. The linked authority identifier is Q6559288. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “List builder” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.