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CL_CNV_FRM_UI_COMP_BASE - Base UI Component

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The abstract class CL_CNV_FRM_UI_BASE is the root class of the UI framework.

The UI component will be build in the method PBO (process before output). The member variable mv_is_initialized will hold the build status of the component. During the pbo call the layout will be set and validated. This operation is only executed for a component of initial state, meaning that it has not been initialized yet. Another pbo call will not execute the same operation.

If the component contains subscreens they will be bound to the component in the method BIND_SUBSCREEN.

In the method ON_BEFORE_OUTPUt it is possible to adjust the screens just before they will be displayed.

The method APPLY_CONTROL_PBO ensures that the method ON_BEFORE_OUTPUT of all supported UI elements will be called.

The method PBO_AFTER_SUBSCREEN ensures that all subscreens are initialized and available. So it is possible to resolve dependencies in the UI and display and gain access to other components.

After a user interaction the method PAI (process after input) will be called. The method ensures that the method ON_AFTER_INPUT of all supported framework controls will be called.

The method PAI_AFTER_SUBSCREEN ensures that the the pai of all subscreens will be called.

The method BIND_SUBSCREENS binds the subscreens to a component.

The method APPLY_CONTROL_PBO ensures that the method ON_BEFORE_OUTPUT of all supported UI elements will be called.






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Length: 1646 Date: 20190626 Time: 215033     sap01-206 ( 22 ms )

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