MultiSelect Lookup Should store value as 'Value1;Value2'.

Hi All,

I want to create MultiSelect lookup for one bounded field in a form. The lookup should shows the List of companies where I should able to select more than one company, after selecting it should store the selected values as 'company1;company2'.

Please suggest me the possibilities in AX,  I have seen one example for MultiSelect lookup with unbounded control.

Please tell me how can I achieve the same for bounded controls.