If, ElseIf, and Else tags cannot contain multiple types of directives.ĭirectives within the If and ElseIf tags can contain regular expression backreferences. If and ElseIf expressions are evaluated once per request, not once per contained directive. If, ElseIf, and Else tags can contain other tags. For more information about the If and ElseIf expression syntax, see Expressions. If and ElseIf tags offer a richer expression syntax, including support for regular expressions. The usage of these tags is summarized below: In addition, these tags can evaluate an expression, then conditionally execute one or more contained directives. These tags can only appear inside an Object tag. The If, ElseIf, and Else tags enable you to define the conditions under which a set of directives will be executed.
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