Lane Interaction in Blazor Diagram Component

24 Sep 20251 minute to read

The diagram supports interactive lane operations, including selecting, resizing, and swapping lanes, as well as working with child elements inside lanes.

How to Select a Lane

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

How to Resize a Lane

• A lane can be resized in the bottom and right direction.
• A lane can be resized by using the resize selector of the lane.
• A lane can be resized by dragging the bottom and right border of the lane without making a selection.
• When a lane is resized, the parent swimlane will automatically adjust its size.
• A lane can resized either by resizing the selector or the tight bounds of the child objects. If a child node moves to the edge of the lane, it can be automatically resized.

The following image shows how to resize the lane.

How to Swap Lanes

• Lanes can be swapped by dragging a lane over another lane.
• A helper indicator appears to show the insertion position during lane swapping.
  The following image shows how to swap lanes.

How to Interact with Child Nodes in Lanes

• Resize child nodes within swimlanes.
• You can drag the child nodes within the lane.
• Drag child nodes within the same lane to reposition them.
• Drag and drop the child nodes from a lane to the diagram.
• Drag and drop the child nodes from diagram to the lane.
• Based on the child node interactions, the lane size will be updated.

The following image shows children interaction in lane.