AbstractTreeTableColumn Events

Use

  • onLoadChildren

    This event is triggered when a tree node is expanded for the first time.

    Parameter Name

    Type

    Description

    ID

    STRING

    Standard Parameter

    CONTEXT_ELEMENT

    IF_WD_CONTEXT_ELEMENT

    Standard Parameter

    PATH

    STRING

    Context path of the related node

  • onToggle

    This event is called if a node is expanded or collapsed in the (hierarchical) table column.

    Parameter Name

    Type

    Description

    ID

    STRING

    Standard Parameter

    CONTEXT_ELEMENT

    IF_WD_CONTEXT_ELEMENT

    Standard Parameter

    EXPANDED

    WDY_BOOLEAN

    New status of node:

    • abap_true= expanded

    • abap_false= collapsed

    PATH

    STRING

    Context path of the related node

Restrictions

  • You are not permitted to use onToggle and onLoadChildren at the same time.

  • If you bind Table.OnLeadSelection and AbstractTreeTableColumn.OnToggle at the same time, it can result in two actions in one roundtrip: If a child of a node is the lead selection and this node is collapsed, the lead selection jumps from the child to the node. If you want to bind both events, set the Application ParameterWDALLOWMULTIPLEACTIONS = X.

Example

You can find a test example in the system in component WDR_TEST_TABLE under the link Selection on tab Table+TreeByNesting or TableTreeByKey. There in the dropdown list at the bottom you can activate which tree event you want to have.