SSRS 2008 R2 expression to hide columns if it has NULLs

Hi, I am using SQL Server 2008 R2 and both ColA & ColB are of varchar(50) datatype. I am trying to hide these columns if they are nulls and interestingly I was able to hide ColA writing the below hidden expression
=IIF(Fields!ColA.Value = Nothing, True, False)
and for ColB the below expression seems to work
=IIF(Count(IsNothing(Fields!ColB.Value)) = Cint(0), True, False)
Just don't understand why?
Thanks in advance.....
Ione

Hi ione721,
According to your description, you want to know the expression for hiding columns and the how those two expressions works to hide a column based on the values of data fields. Right?
In this scenario, for the first expression, it supposed to be "=IIF(Fields!ColA.Value is Nothing,True,Flase)", when table generates a detail row which contains a null value for ColA, the expression meet the condition and return True.So the column will be
hidden. And it will stop judging with next detail row generated. In the second expression, the IsNothing() function returns a Boolean, no matter is True or Flase, they are both counted as 1. It can never be equal to 0 and always return false. So the second
expression will keep the column visible which is not correct.
If you have any question, please feel free to ask.
Best Regards,
Simon Hou

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Hi Sayali,
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SSRS 2008 - hide chart lines based on parameter selected

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Hi Ok-Hee,
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Hello Everyone,
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Hi,
Assuming you have test data like this ;
select 'abc'as [GROUP],'NN' name , 1 id
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Follow this link;
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/b6b45917-0a26-4d15-be46-2c6a2697d6e9/distinct-rows-sum?forum=sqlreportingservices#5ffdee06-c2c8-44ea-a3a5-b958488bb6b5
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Hi Friends,
I need to calculate Difference and Percentage In matrix report SSRS 2008
1) Row grouping based On Product
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3)Data Invnetory(Value fileld)
Example:
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Below Code is working for If two values is available.
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Public Shared Value1 as String
Public Shared Value2 as String
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previous=partner
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End Function
How to handle this.
Thank You, Manasa.V

Hi veerapaneni,
According to your description, if one of the fiscal year week doesn’t have data, the custom code returns false results.
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1. Create a table like below.
create table dif4
([Product Group] varchar(50),
[Week] varchar(50),
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value int
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Best regards,
Qiuyun Yu
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Hi,
I could reproduce the scenario you posted.
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Tony Chain [MSFT]
MSDN Community Support | Feedback to us
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Please remember to mark the replies as answers if they help and unmark them if they provide no help.

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Hi,
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Hi veerapaneni,
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