The current build operation (build key Build Key[Microsoft.Practices.EnterpriseLibrary.Data.Database, null]) failed: The value can not be null or an e

when you have implemented MS Enterprises Library then you face this error...

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)

so for this please add Default Databse in web.config

please ref Image for the solution

LINQ to SQL Binding UI using the ASP:LinqDataSource Control) - ScottGu's Blog

very Good Post by ScottGu


ScottGu's Blog
Scott Guthrie lives in Seattle and builds a few products for Microsoft

LINQ to SQL (Part 5 - Binding UI using the ASP:LinqDataSource Control)



http://weblogs.asp.net/scottgu/archive/2007/07/16/linq-to-sql-part-5-binding-ui-using-the-asp-linqdatasource-control.aspx


thnaks

pravesh shsrda

Why BPM ?

Since those days, organizations have implemented several new applications, leading to a situation where legacy and home-grown systems reside on a variety of platforms (UNIX, Microsoft Windows, mainframe, etc.) with different architectures (green screen, two-tier, three-tier, Web-based, etc.). Such disjointed systems and applications created the need to link departmental systems. BPM was born from this need to streamline internal processes and connect internal and external tasks.