There are two ways to add an expression:
An Expression Editor provides a very convenient way of entering expressions, including Intellisense, a list of common VB and SSRS functions, operators, and collections that a developer can copy to an expression. To start an Expression Editor, use one of the following methods (see Figure 8.1):
Figure 8.1. Various methods of accessing the Expression Editor.
Any of the preceding methods will display the Expression Editor window, shown in Figure 8.2. Expression Editor consists of an Intellisense-enabled editing area (1), category browser (2), category member list (3), and multipurpose area (4). Figure 8.2. Edit Expression window also known as Expression Editor.The multipurpose area works in a couple of capacities : When the category is a collection (such as Parameters), this area displays the collection member browser; when the category is a constant, it displays a list of available constants. Depending on the property being edited, the Expression Editor only displays constants available for this specific property. When the category is neither collections nor constants, the multipurpose area carries a description. |