SET_ATTRIBUTE_PROPERTY doesnt work

Hi All,

I have a declared a node ABC cardinality 1:1 under the context of my view and under this node ABC i have an Attribute MARK type boolian.

in the layout, I have a UI element check box for which I have binded the attribute MARK.

Now I want to set the read_only property dynamically to this check box.

LO_ND_ABC = WD_CONTEXT->GET_CHILD_NODE( NAME =  WD_THIS->WDCTX_ABC ).

LO_EL_ABC = LO_ND_TRAVEL_DATA->GET_ELEMENT( ).

CALL METHOD LO_EL_ABC->SET_ATTRIBUTE_PROPERTY
     EXPORTING
       ATTRIBUTE_NAME = 'MARK'
       PROPERTY       = 3
       VALUE          =  'X'.

But the check box was not set with read_only property.

I have searched many threads and after which i am raising this problem here.

I have also tried SET_ATTRIBUTE_PROPS_FOR_ELEM and SET_ATTRIBUTE_PROPS_FOR_NODE aswel.. but nothing worked out..

Please help.

I don't want to create an attribute and bind it to read_only property of the check box in the layout.