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Asked: 2026-05-10T19:34:31+00:00

I have a dtsx package with a precedence constraint that evaluates an expression and

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I have a dtsx package with a precedence constraint that evaluates an expression and a constraint. The constraint is ‘success’ and the expression is ‘@myVariable’ == 3. myVariable is an int32, and when set in Visual Studio’s design GUI the package executes fine. There are two other paths that check for the value to be 1 or 2.

However when I try to run the package from the command line and pass in a value for my variable, it errors out claiming the expression does not evaluate to a boolean!

Command:

dtexec /F 'c:myPackage.dtsx' /SET  \Package.Variables[User::myVariable].Properties[Value];3

Error:

The expression '@myVariable == 1' must evaluate to True or False.   Change the expression to evaluate to a Boolean value.

The fact this runs fine from the GUI and that microsofts documentation claims == (intuiatively) returns a boolean has me very confused. I’ve also tried surrounding the 3 in double quotes in my command with no luck, and now I am out of ideas.

Anybody have an idea of what is going on?

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1 Answer

  1. Sorry took me so long to get back to this thread! But (DT_I4)@[User::myVariable] == 3 did the trick. Thanks!

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