How can i change the values or add values dynamically/programatically for a PropertyLinkCollection property.
Thanks in advance.
Do you mean when the link is saved, or when it is rendered?
If you want to add things to the LinkCollection when it's rendered, the property is just a collection of LinkItem objects. The collection has methods for Add, Remove, etc. You sbould be able to create a new LinkItem object and insert it at runtime, if you like.