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c# - SQL Server connection string Asynchronous Processing=true

I am using .Net 2.0 + SQL Server 2005 Enterprise + VSTS 2008 + C# + ADO.Net to develop ASP.Net Web application.

My question is, if I am using Asynchronous Processing=true with SQL Server authentication mode (not Windows authentication mode, i.e. using sa account and password in connection string in web.config), I am wondering whether Asynchronous Processing=true will impact performance of my web application (or depends on my ADO.Net code implementation pattern/scenario)? And why?

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Begining with .NET Framework 4.5, Asynchronous Processing property is ignored, thus it's unnecessary to include it.

Quote:

Prior to .NET Framework 4.5, asynchronous programming with SqlClient was done with the following methods and the Asynchronous Processing=true connection property:

  1. System.Data.SqlClient.SqlCommand.BeginExecuteNonQuery
  2. System.Data.SqlClient.SqlCommand.BeginExecuteReader
  3. System.Data.SqlClient.SqlCommand.BeginExecuteReader

This functionality remains in SqlClient in .NET Framework 4.5.

Beginning in the .NET Framework 4.5, these methods no longer require Asynchronous Processing=true in the connection string.

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