Yes, well don't laugh, I could not find this on the WWW so I was obviously not using Google properly.  Anyway here's just a quick note on how to do if else statements in Report Builder 2.0

I'm looking at the following if statement:

copyraw
If (MyFieldName = 0) Then
     Return 1
Else
     Return MyFieldName
  1.  If (MyFieldName = 0) Then 
  2.       Return 1 
  3.  Else 
  4.       Return MyFieldName 

Can be expressed as:

copyraw
IIf(Fields!MyFieldName.Value = 0, 1, Fields!MyFieldName.Value)
  1.  IIf(Fields!MyFieldName.Value = 0, 1, Fields!MyFieldName.Value) 

Category: SQL Server Reporting Services :: Article: 261

The Issue

After modifying a report and on running it, Report Builder 2.0 returns the following error:

alt

An error occurred during local report processing.
An error has occurred during report processing.
Query execution failed for dataset 'DataSet1'.
The variable name '@GroupName' has already been declared.  Variable names must be unique within a query batch or stored procedure.

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