Foblex Flow
Introduction
Overview
Nodes
Custom Nodes
Drag Handle
Node Selection
Resize Handle
Rotate Handle
Grouping
Drag to Group
Connectors
Node as Connector
Connector Inside Node
Connector Outlet
Limiting Connections
Connection Rules
Connectable Side
Updated
Connections
Drag to Connect
Drag to Reassign
Create Node on Connection Drop
Remove Connection on Drop
Assign Node to Connection on Drop
Auto Snap
Connection Types (Straight, Segment, Bezier, Adaptive Curve)
Custom Connection Type
Connection Behaviours
Connection Markers
Connection Content
New
Connection Waypoints
New
Custom Connections
Connection Connectable Side
New
Extensions
Add Node from Palette
Selection Area
Help in Positioning (Legacy)
Deprecated
Magnetic Lines
New
Magnetic Rects
New
Grid System
Minimap
Zoom
Updated
Background
Updated
Advanced
Large Scene Performance
Updated
Connection Redraw Performance
Updated
Cut/Copy/Paste
New
Undo/Redo
Undo/Redo V2
New
Dagre Layout (Directed Graph)
ELKJS Layout (Directed Graph)
Drag Start/End Events
Custom Event Triggers
Reference Apps
AI Low-Code Platform
New
DB Management
UML Diagram
Tournament Bracket
Foblex Flow

Drag to Group

Description

Drag nodes or groups into containers, build nested hierarchies, and manage dynamic parent-child structures in Angular with Foblex Flow. Use this pattern when your editor needs more than a flat canvas and grouping should feel like a first-class interaction.

Example

[component.html] <<< https://raw.githubusercontent.com/Foblex/f-flow/main/projects/f-examples/nodes/drag-to-group/drag-to-group.html [component.ts] <<< https://raw.githubusercontent.com/Foblex/f-flow/main/projects/f-examples/nodes/drag-to-group/drag-to-group.ts [component.scss] <<< https://raw.githubusercontent.com/Foblex/f-flow/main/projects/f-examples/nodes/drag-to-group/drag-to-group.scss [common.scss] <<< https://raw.githubusercontent.com/Foblex/f-flow/main/projects/f-examples/_flow-common.scss

What this example shows

  • Move nodes or groups into another group and update parent-child relations through drag-and-drop.
  • Nest groups inside groups and nodes inside other containers when the editor needs hierarchy.
  • Create new nodes directly inside a target container via fExternalItem.
  • Control container geometry with fIncludePadding, fAutoSizeToFitChildren, and fAutoExpandOnChildHit.
  • React to reorganization events through fDropToGroup and fCreateNode.

Practical tips

  • Use fDropToGroup when your app needs to validate or persist hierarchy changes.
  • Combine external palettes with fCreateNode if users should spawn nodes directly inside any container.
  • Enable auto-expand when manual group resizing would slow down editing.
  • Nesting can go deep, but groups inside nodes are still not supported.
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