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Asked: 2026-05-27T12:05:07+00:00

I have following connection string: metadata=res:// /Database.csdl|res:// /Database.ssdl|res://*/Database.msl;provider=System.Data.SqlClient;provider connection string=Data Source=.\SQLEXPRESS;AttachDbFilename=’Database.mdf’;Integrated Security=True;User Instance=True;Connection Timeout=300;

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I have following connection string:

metadata=res:///Database.csdl|res:///Database.ssdl|res://*/Database.msl;provider=System.Data.SqlClient;provider connection string=”Data Source=.\SQLEXPRESS;AttachDbFilename=’Database.mdf’;Integrated Security=True;User Instance=True;Connection Timeout=300;”

I expect that this connection string can never get timeout (because it is 5 mins). However, on a very easy database.table.Count() call to Entity Framework it fails in 10 seconds with “Timeout” exception.
Why does Entity Framework ignores SQL timeout? How to set timeout for Entity Framework?

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1 Answer

  1. Editorial Team

    Connection timeout specifies the amount of time to spend waiting for a connection. It doesn’t affect the amount of time that a query can spend before timing out.

    For that, you need to search for a CommandTimeout property on whatever database context class you’re using.

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