Pass values between user controls on 2 different aspx pages

I have 2 user controls that is hosted by 2 different aspx pages.
example:
srcpage.aspx --> hosts the --> sourceusercontrol.ascx
and
destpage.aspx --> hosts the --> destinationusercontrol.ascx

I would like the values in the text fields of the sourceusercontrol.ascx to be passed on to the labels in the destinationusercontrol.ascx.
I have gone through the MSDN ASP.Net examples and i was able to successfully pass values between two aspx page using the postback URL functionality, but cannot do the same thing with the usercontrols on 2 different aspx pages.

Any suggestions would be helpfull....!
Thanks..! 
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