Automatic set custom field

Question

There're project and its tasks. It's required to add some field and set it when new task is created: I created task
with uid = "eae633db-7b5c-4539-9630-749419c21b07" => field "link"  = "http://serv/data.aspx?uid=eae633db-7b5c-4539-9630-749419c21b07" (it
must be link, viz. click on value in this field => redirect to http://serv/data.aspx?uid=eae633db-7b5c-4539-9630-749419c21b07).

Answer 1

Okay so have you already tried this and having problem, or still under pursuing a solution ?
if still under pursuing solution then, Since you are saying you are creating task / list item programmatically, so for creating list item  you would need to use either sharepoint object model or list item web service , and once you create
the list item store the list item URL in a variable and then use PSI to create a task and add the URL to the hyperlink column, check this PSI code sample to update task level custom field using PSI: http://blogs.msdn.com/b/brismith/archive/2010/08/25/project-server-adding-custom-fields-to-projects-and-tasks-using-the-psi.aspx
Using object model to create List item  : http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.aspx  
Let us know if this is what you are looking for or i am missing something
Thanks | Sunil Kr Singh | http://epmxperts.wordpress.com