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Set the connection string for Entity Framework at runtime

, 2 Aug 2011 CPOL
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This shows how to set or change the connection string for Entity Framework at run time (programmatically)
string connectionString = new System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"]);
System.Data.SqlClient.SqlConnectionStringBuilder scsb = new System.Data.SqlClient.SqlConnectionStringBuilder(connectionString);
EntityConnectionStringBuilder ecb = new EntityConnectionStringBuilder();
ecb.Metadata = "res://*/Sample.csdl|res://*/Sample.ssdl|res://*/Sample.msl";
ecb.Provider = "System.Data.SqlClient";
ecb.ProviderConnectionString = scsb.ConnectionString;
dataContext = new SampleEntities(ecb.ConnectionString);
This also would be useful if you want to encrypt the connection string using your own methods.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Bahram Ettehadieh
Web Developer
Iran (Islamic Republic Of) Iran (Islamic Republic Of)
I hold a BS degree in software engineering and am a Microsoft Certified Solution Developer(MCSD).
I have more than 8 years of experience in .NET developement, mostly web develop using C# and ASP.NET.

Comments and Discussions

GeneralMy vote of 1 PinmemberCem Usta28-Jan-15 5:47 
Generalworks (entity framework 6.1, .Net 4.5.1) PinmemberMattens15-Oct-14 13:03 
GeneralMy vote of 1 PinmemberMember 1105237030-Sep-14 1:32 
SuggestionSuggestion for NetFramework 4.5 Pinmemberrafaelvareto19-Aug-14 0:45 
GeneralMy vote of 2 Pinmembermeloukoud23-Jun-14 3:04 
GeneralMy vote of 1 PinmemberMember 1085838214-Jun-14 2:02 
QuestionExcellent!! PinmemberMember 42609687-Apr-14 14:27 
GeneralThanks. PinmemberCIAP10-Jun-13 11:48 
QuestionFor Entity Framework Pinmemberaomidi5-Feb-13 1:53 
GeneralMy vote of 2 PinmemberMichael Freidgeim15-Nov-12 9:03 
QuestionIs esb required? PinmemberMichael Freidgeim15-Nov-12 8:49 
GeneralMy vote of 5 Pinmembereibbed7-Sep-12 12:07 

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