Min aggregate function returns empty string

Question

I have a data set with a column named "month" which contains string values like 1,2,3... etc. including empty string. When I apply an aggregate Min function like below, it returns empty string instead of 1. or the lowest month number.
Min(Fields!month.Value, "Financial")
Please if any one can assist me on this.
Regards

Answer 1

Hi ABDUL-HAFEEZ,
As you know the Min() function returns the minimum value of all non-null numeric values specified by the expression, because you have null string in the field and also the field type is string but not numeric, so this function will not works fine.
I have tested on my local environment that we can get the first convert the string to numeric type value and then get the min value of the month field by using the query not the expression.
Details information below for your reference:
Create an new dataset(DataSet2) to get the minimum value from the Month and the query like below:
SELECT     Min(CAST(Month AS INT)) as NewMonth
FROM         TableName
Using below expression in the main dataset will display the minimum value of the month:
=Sum(Fields!NewMonth.Value, "DataSet2")
If you still have any problem, please feel free to ask.
Regards
Vicky Liu
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Vicky Liu
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