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feat(workflow-form): render Projection's drag-reorder list in the form, with the drag #8761
Description
Feature Summary
An exposed drag-reorder property -- Projection's columns, formly type repeat-section-dnd -- falls back to a plain repeated list in the Form View (CANVAS_ONLY_FORMLY_TYPES, custom-formly-type.ts:35; the fallback at workflow-form.component.ts:872-876). A reader can edit the rows but not reorder them, which is what the widget is for.
Part of #8439 (item 2) and the Form View feature #8011. Raised by @mengw15 on #8436.
Proposed Solution or Design
The widget is a FieldArrayType whose rows come from an item template the property panel builds with extra dynamic-schema wiring for Projection's attributes; the reorder callback itself is optional, since the form's valueChanges persists a reorder. Rendering it with the drag means reproducing that item-template wiring in the form's field walk -- #8438 added the sub-field walk (childPath, arrayItemOf) to build on -- and verifying it against the real Projection schema, with a keyboard path (Move up / Move down) beside the drag, as the form's own step list has. Once it works, repeat-section-dnd leaves CANVAS_ONLY_FORMLY_TYPES.
Affected Area
Workflow UI
Activity
github-actions commentedon Sep 29, 2026
👋 Thanks for opening this issue, @yangzhang75!
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