Using Two Datasets In A Report

hello everyone!

i have a report in which i use two datasets
the problem is that when i was using only one, there wasn't any scope argument you know, to tell in which dataset i am , because there was only one and all fields and cells in my table returned me the correct values

but as soon as i add the second data set and i drag and drop the datasets fields in my table

instead of having for instance



Code Snippet

=Fields!Consultant.Value






or




Code Snippet=(Fields!Consultant.Value, "dataset1")





it automtically applies the function "first"




Code Snippet=First(Fields!Consultant.Value, "dataset1")





and i don't understand why

please can you give me precious help on this

because it returns me the name of the first consultant only and if i deleter the function first in the expression, the report doens't work anymore