Expression Editor - Avg Problem

Aug 15, 2007

This is my data set

PersonId Type (varchar 20)

153 NewlyEnrolled
58 8
248 Enrolled
857 23


I am trying to show an avg for all the numbers in the €˜Type€™ field

=avg(iif(Fields!Type.Value = "NewlyEnrolled" ORELSE Fields!Type.Value = "Enrolled", nothing, CDbl(Fields!Type.value)))

I get the error €œInput string was not in a correct format.€?

If I use:

=avg(iif(Fields!Type.Value = "NewlyEnrolled" ORELSE Fields!Type.Value = "Enrolled", nothing, 1))

It works and it returns €˜1€™


so the problem is CDbl(Fields!Type.value). i'm tring to convert it to a number so it can be used in the avg function.

any idea what I'm doing wrong?

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Code Snippet
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END



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