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How to check the layout defined for an ALV program

Hi All,

I have an ALV-program which uses radio buttons to display the list either in an Hierarchical format or in a Simple list format. In the selection screen there is a field for specifying the layout.

Now the problem is, if a layout is created for Hierachical display and that layout is used to display the list in a simple list format the program doesn't give the desired output and vice versa.

So i need to put a check in the program, to check whether the layout given in the selection screen is meant for a Simple List display or for an Hierarchical display and accordingly throw an error message regarding the mismatch if any.

Is there any standard Function Module to check whether the layout is defined for a Simple List display or an Hieracrchical List display? Or is there any other way to do this checking????

Thanks in Advance!!!


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