Filter expressions on hidden fields

Question

I have 11 (eleven) different columns in a Report Builder 3.0 report. There can be multiple rows to this report depending on the date range selected. In those columns/rows, some data is hidden at times depending on another filter expression. The last column
on the right is a field that will sum up all numbers in the columns to the left. Is there a way to sum up only the columns that have data visible? Currently, the sum is based on all rows to the left even if the data is hidden.

Answer 1

Hi jim_JNCIP,
As you mentioned that the totals are still not correct. Some of the lines do not total at all and others total all fields even if hidden. This can be caused by the relationship between Hidden expression  and the SUM expression. Did you used total 
10 IIF function in the SUM expression? If so, that is the problem.
You have provided an hidden expression last time as below and I would like to know If you have just add this hidden expression to the column2(Part_2_Total_Amt) ,right? and is there any other hidden expression to other column? also check the expression is
correct:
=IIF(Fields!Acct_Class_Code_Part_2.Value = "RES" AND Fields!Supplier_2.Value = "Certain Text", false, true)
Note: This hidden expression means when Fields!Acct_Class_Code_Part_2.Value = "RES" AND Fields!Supplier_2.Value = "BURNER SYSTEMS INTL De M" the related amount will show(True is for hide and false is for display)
Please check below to make sure you have using the right IIF function in the SUM:
If the expression just added in the fields [Part_2_Total_Amt] (right click the fields and select the Texbox Properties and select the visibility to add the expression), then the expression will just hide some of the value of the column2(Part_2_Total_Amt),
So you don’t need to use the IIF function in the sum of the other column. Only the column which you have added the hidden expression will add the IIF function to get the sum Corresponding.
=Sum(Fields!Part_1_Total_Amt.Value)+ Sum(IIF(Fields!Acct_Class_Code_Part_2.Value = "RES" AND Fields!Supplier_2.Value = "BURNER SYSTEMS INTL De M",0, Fields!Part_2_Total_Amt.Value))+ Sum(Fields!Part_3_Total_Amt.Value)…
If all the Columns(total 10 ) both need to show the fields base on this conditions:  Fields!Acct_Class_Code_Part_N.Value = "RES" AND Fields!Supplier_N.Value = "BURNER SYSTEMS INTL De M" you will need to add hidden expression on
both columns(Part_N_Total_Amt)( right click the fields and select the Texbox Properties and select the visibility to add the expression):Sum expression add 10 IIF functions:
= Sum(IIF(Fields!Acct_Class_Code_Part_1.Value = "RES" AND Fields!Supplier_1.Value = "BURNER SYSTEMS INTL De M",0, Fields!Part_1_Total_Amt.Value))+Sum(IIF(Fields!Acct_Class_Code_Part_2.Value = "RES" AND Fields!Supplier_2.Value
= "BURNER SYSTEMS INTL De M",0, Fields!Part_2_Total_Amt.Value))+ … +Sum(IIF(Fields!Acct_Class_Code_Part_10.Value = "RES" AND Fields!Supplier_10.Value = "BURNER SYSTEMS INTL De M",0, Fields!Part_10_Total_Amt.Value))
If I have some misunderstanding ,please provide me more details about where you want to using the hidden expression.
If you still have any question, please feel free to ask.
Regards
Vicky Liu