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Manipulate a dataset in a Gauge

Posted By:      Posted Date: September 24, 2010    Points: 0   Category :Sql Server

I have a dataset based on a stored procedure that is returning ID, Amount, Category, SubCategory, PayType.  I am using this same dataset for about 5 other gauges on the same page by using filters on the gauge to categorize and sum up amounts for me based on Category and SubCategory.  I have one gauge that I want to use this same dataset for, however in this case I want to basically filter by Category X and then subtract the Sum(PayType1) from Sum(PayType2).  I realize the below formula doesn't work, but an example of what I wanted is sort of:

=SUM(IIF(Fields!PayType.Value, "Dataset")="Pledge", Fields!Amount.Value, Fields!Amount.Value*-1.0)

So I want to subtract all the 'payment' PayTypes from the 'pledge' PayTypes.  Is there a way to do this with the dataset I have already called?

I realize that I can create another dataset and do the calculations there and have it returned, and this may even be the better way.  I just wasnt sure if it took less resources to just filter the dataset I already have returned, or to hit the server with another stored procedure call.

Any thoughts?

SQL Server 2008R2


Thank you.

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