title: store data inside WCF service and extract it later by the client
body: <p>i have an Autocomplete ajax control that calls a WCF service method automatically.
  this method gets a string as an input parameter and return a list of strings.
  i don't make that call from the client , the control does it, but i write the content of this method.</p>
  
  <p>Can i store some data somewhere in the WCF service when that method is called and extract it later when i use the WCF from the client ? 
  i mean , i want the control to call the method, in the method i'll store some data and later when i use the WCF client object i'll extract it.</p>
  
  <p>is there such "WCF cache" mechanism? </p>