Ordering Columns in SSRS Report Builder for SQL Server 2012

Question

I have my report displaying the correct information, however the columns are arranged in alphabetical order of the column group members. I want to arrange them in a different order. How do I do that?
The following may help, but don't use it if it doesn't: One variable in my data set is the desired column order (call it 'column rank'. It runs from 1,...,10). If I make that the column group, the columns ARE arranged in the correct order but now the labels
are '1','2', etc. I.e. not the labels I want.  
Many thanks.
P.S. First time using RS so please excuse terminological errors. Obviously I have used the docs. and Google to try and find the answer to this.
-A

Answer 1

Hi achalk,
Per my understanding that you want to specify the order of the column group to a special order, right?
I have tested on my local environment and you can using an expression to acheive this, detail information below for your reference:
for example you now have the order like below:
Column group:
test1  test2  test3  test4
You can use the expression with switch functionn to specify order value based on the value in the column group :
select the sorting in the "group properties" of the column group and add the expresion in the "Sort by"
=switch(Fields!columngroupfield.Value="test1",1,
Fields!columngroupfield.Value="test3",2,
Fields!columngroupfield.Value="test4",3,
Fields!columngroupfield.Value="test2",4)
Then you will got the order like below:
test1 test3 test4 test2
If you still have any problem, please feel free to ask.
Regards
Vicky Liu
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