Assign a value from dropdownlist to input field value on BSP page

Hi,
I'm new to SAP and ABAP. We have a CRM project in which I have to maintain BSP pages.
Now, coming to my problem: I have a input field with
value = "//BTAdminH/HeaderInfo"
This field is normally maintainable. The required function is now to set this field as not maintainable/readonly. Then, the value should be set automatically to an value, which will be selected from a dropdownListBox. After saving, the value HeaderInfo should have the same value like the selected value from the dropdownListBox.
How can I now set the field as readonly (this should be the easier part) and
how can I set the value for the HeaderInfo to the value of the selected value from the dropdownListBox?
If I set it directly like this
value = "//BTActivity/Priority"
it is shown on the BSP page correclty, but it is not saved as HeaderInfo.
Please help me.
Enja

Hello Gokul,
test was only for test purposes! I am using as a separator the plus sign!
But this is not the problem!
In debugging, the local variable has the concatenated value! So, this is working!
oncatenate ls_ddlb1-value ls_ddlb2-value ls_ddlb3-value into lv_headerinfo SEPARATED BY ' + '.
But when I assign the value of my set_headerinfo to the local variable, then it is returning only the separator sign!!!
if BTAdminH->GET_HEADERINFO( 'HEADERINFO' ) is initial.
BTAdminH->SET_HEADERINFO( attribute_path = 'HEADERINFO' value = lv_headerinfo ).
endif.
If I declare the local variable as one of the dropdown values, then it is getting populated also for set_headerinfo
lv_headerinfo =ls_ddlb1-value.
So, the assigning is also working! But it is not working, when the local variable equals more than one value! I hope that I could explained it in the right way for you!!!!
So. why is the value for set_headerinfo not the same as the one for the local variable! The local variable has the correct value after the concatination.
Regards
Enja

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Message was edited by: nageswar mandapati

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