Gets or sets the expression that evaluates to the value of this field.
For example: =Fields!Price.Value+Fields!Tax.Value.
The expression cannot contain aggregates or references to report items.
Field must have exactly one of the following: DataField or Value.
Namespace:
C1.C1Rdl.Rdl2008Assembly: C1.C1Report.2 (in C1.C1Report.2.dll)