richtextbox text appending- Urgent

Question

Hi

I am having a richtextbox and a listbox.

From l;istbox, i select one item and attach that item to the richtextbox data.

If list box has data like custname,customernumber and

In rich textbox, the data is as given bellow

DEAR ---------

Nice meeting you.

Beside Dear, i will be attaching the field from listbox. The output shud be

 Dear Customername

Nice meeting you.

 

Instead the word customer name is coming in next line. The text that is added from listbox is not appending to the existing text in richtextbox.

Please help.

 

My question may be beating around the bush, Apologies for the same.

Thanks