I use Facebook Asp.NET SDK.
I'm able to post on a facebook page programmatically using client.Post("/" + pageID + "/feed", parameters) where parameters is my ExpandoObject with field setted like in the image preview below (link, i can't post any image).
I need to know how to control the placeholder i pointed out with ???? I can understand that it is a preview of my website text, but i wish to control and format correctly.
Thanks in advance for any tips!