Closed Issue: AmoBrowser: There is an exception when click the AdventureWorksDW AS Database.

Environment:
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1. Win2k3 SP2  X64
2. SQL Server 10.0.1600.22
3. SQL Samples 090306

Repro Steps:
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1>     Deployed the AdventureWorks 2008 Analysis Services Project successfully.
2>     Build and run the AmoBrowser.exe
3>     Connect to the Local server,  and expand the Databases.
4>     Click the Adventure Works DW 2008
5>     Click the DismissedValidationRules node.

Expectation:
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The AmoBrowser.exe should run properly without no exception.

Actual Result:
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At step5, there is an exception popped up, please take a view the attached picture AmobrowserError.bmp.
Comments: Verify on sample 90727.