https://www.infopathdev.com:443/forums/44.aspx enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/41610.aspxWed, 13 May 2009 01:27:40 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:41610Patrick Halstead0https://www.infopathdev.com:443/forums/thread/41610.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=44&PostID=41610<p>Add a rule to your dropdown with an action that sets the query value. Add a second action that then queries the secondary data source. </p>https://www.infopathdev.com:443/forums/thread/41571.aspxTue, 12 May 2009 10:26:21 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:41571ramakrishna0https://www.infopathdev.com:443/forums/thread/41571.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=44&PostID=41571Hi, I have an infopath form that has two external datasource I query the first one from a button to populate a dropdownlist I then want to choose an item from this dropdown list and press a button which will pass the vaule from this combobox to the second datasource. how do I set the query field for the secondary datasource on change of the dropdown (this throws a state error when I try it), or is there a better way to do it? Is there an event that fires on the refresh of a datasource?