Lane interaction in WPF Diagram(SfDiagram)

12 Jun 20241 minute to read

The diagram provides support to select, resize, or swap the lane interactively.

Select

A Lane can be selected by clicking (tap) the header of the lane.

Resizing lane

• Lane can be resized in the bottom and right direction.
• Lane can be resized by using the resize selector of the lane.
• Lane can be resized by resizing the bottom and right border of the lane without make a selection.
• Once you can resize the lane, the swimlane will be resized automatically.
• The lane can be resized either resizing the selector or the tight bounds of the child object. If the child node move to edge of the lane it can be automatically resized.
• The SwimlaneChildChangedEvent will notify the UnitHeight and UnitWidth changes with their old and new values. Along with that, this event will give information about interaction state. To explore about arguments, refer to the SwimlaneChildChangedEvent

The following image shows how to resize the lane.

Lane swapping

• Lanes can be swapped by dragging the lanes over another lane.
• The SwimlaneChildChangedEvent will notify the RowIndex and ColumnIndex changes with their old and new values. Along with that, this event will give information about interaction state. To explore about arguments, refer to the SwimlaneChildChangedEvent
• Helper should intimate the insertion point while lane swapping.

The following image shows how to swap the lane.

Children interaction in lanes

• You can resize the child node within swimlanes.
• You can drag the child nodes within lane.
• Interchange the child nodes from one lane to another lane.
• Drag and drop the child nodes from lane to diagram.
• Drag and drop the child nodes from diagram to lane.
• Based on the child node interactions,the lane size should be updated.

The following image shows interaction with the lane’s children.

See Also

How to restrict node’s dragging from native lane to other lanes in diagram?