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Enterprise Library 4.1 October 2008

Dec 10

Written by: Tim Wheeler
12/10/2008

I got this error while trying to call the "CreateDatabase()" method on the DataFactory:

Initialization method MyClass threw exception. Microsoft.Practices.ObjectBuilder2.BuildFailedException: Microsoft.Practices.ObjectBuilder2.BuildFailedException: The current build operation (build key Build Key[Microsoft.Practices.EnterpriseLibrary.Data.Database, null]) failed: The value can not be null or an empty string. (Strategy type ConfiguredObjectStrategy, index 2) ---> System.ArgumentException: The value can not be null or an empty string..

Found the answer here: http://www.codeplex.com/entlib/Thread/View.aspx?ThreadId=31848

It seems that the new library requires an extra setting in your config if you don't specify the connection name.

Add the dataconfiguration element above your connection strings:

<dataConfiguration defaultDatabase="default" />connectionStrings><add name="default" connectionString="Database=ABC;Server=Server;Integrated Security=SSPI" providerName="System.Data.SqlClient"

/>connectionStrings>

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4 comments so far...

Re: Enterprise Library 4.1 October 2008

Hi, It's been a while since I used DAAB application block. I have a basic question. How does the DAAB dlls understand the config file? Can we have multiple config files? I am still having issues with the default database.

By Anu on 12/23/2008

Re: Enterprise Library 4.1 October 2008

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By jghfh on 12/23/2009

Re: Enterprise Library 4.1 October 2008

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