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Home/ Questions/Q 6642915
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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T23:59:12+00:00 2026-05-25T23:59:12+00:00

How do WF4 parse expressions and return the values. for example the If activity

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How do WF4 parse expressions and return the values.

for example the If activity has the Condition attribute that we can write expression like [ true = true ] or [ “str” = “str” ] or guids…
what is the class responsible for this parsing?

I noticed that when we put the [] so the engine will directly parse the content of the brackets, in other world what is the class that parses the VB expression in WF4.

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  1. Editorial Team
    Editorial Team
    2026-05-25T23:59:13+00:00Added an answer on May 25, 2026 at 11:59 pm

    The class you are looking for is VisualBasicValue< TResult>.

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