Implicit Expressions vs. Explicit Expressions

Implicit expressions and explicit expressions have some functional overlap and some functional differences. Often there will be no choice of which to use (e.g., Generate Local Resources always uses implicit expressions), but when you write your own code, you will have to choose between the two. Table 5.1 provides a comparison between implicit and explicit expressions.

Table 5.1. Comparison Between Implicit Expressions and Explicit Expressions

	Implicit Expressions	Explicit Expressions
Access Local Resources	Yes	Yes
Access Global Resources	No	Yes
Created by Generate Local Resources	Yes	No
Use on Localizable Properties	Yes	Yes
Use on non-Localizable Properties	Yes	Yes
Use in Expressions Dialog	Yes	Yes
Use in HTML Attributes	No	Yes

From this table, you can see that explicit expressions have a greater scope, but you should weigh this against the additional effort of creating and maintaining explicit expressions.