hi, in my report i wrote a function Get_Multiple_MonthName()which requires 2 parameters i am passing those two params from two datasets like this =Code.Get_Multiple_MonthName(First(Fields!MONTHDESC.Value, "CustomerDetail"),First(Fields!CALTYPE.Value, "CustomerDetail")) is this is the correct way pls suggest

I believe as long as the expression (in your case a function) is outside a Data Region. Take a look at the Scope section in the following http://msdn.microsoft.com/en-us/library/ms159673(v=sql.90).aspx "For expressions outside of data regions, Scope refers to a dataset" The problem is likely where your function is executed.Best Wishes, The Redman; If something helps, please help show it by voting, if it solves, bonus!

I believe as long as the expression (in your case a function) is outside a Data Region. Take a look at the Scope section in the following http://msdn.microsoft.com/en-us/library/ms159673(v=sql.90).aspx "For expressions outside of data regions, Scope refers to a dataset" The problem is likely where your function is executed.Best Wishes, The Redman; If something helps, please help show it by voting, if it solves, bonus!