I'm trying to use nested repeaters in my ASP.NET app
and all works fine at my own computer, but when I deploy
it on my web server I get this error message:

'This constraint cannot be enabled as not all values have corresponding parent values'

I don't understand why I'm getting this error on the web server since I use the exact data to test my app on.

Regards Peter Hansson

I think there is some constraint problem found in your coding.Maybe you can try this link below to understand more about the relation thing.
http://aspnet.4guysfromrolla.com/articles/101602-1.aspx