How to get different values in drop down in table rows

Hi
I have an application, which has a drop down in the table. Each row is to have different values in its drop down based on the "characteristic" parameter. For eg. first row has characteristic as color, and the corresponding drop down will contain the color names. Second row has charateristic as weight, and the drop down will carry corresponding weight values.
I am getting the data from the backend as a flat table i.e. charaterisitc - value pair.
I think i will have to use the Drop Down by Index control, but i dont know how exactly to go about it.
Can any one please help in this regard.
Thanks & regards,
Anupreet

Hi Maksim
I am sorry, but i am not able to get you.
This is the piece of code that i wrote for populating the drop down:
IPrivateMaintainDocAttribView.IDropElement dropEle = null;
for(int i = 0;i<size;i++)
             dropEle = wdContext.nodeDrop().createDropElement();
             dropEle.setDropval(wdContext.nodeCtxNode_DocAttribs().getCtxNode_DocAttribsElementAt(i).getCmpCtx_Value());
             wdContext.nodeDrop().addElement(dropEle);
Here, Dropis the sub node to which i am putting the data and thisis linked to the table.
CtxNode_DocAttribs is the model node from where i am picking the data and setting in the subnode.
Thanks & regards,
Anupreet

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