问题
I was just wondering that, what is Entity Framework Connection String really mean? Like:
metadata=res://*/Models.Model1.csdl|res://*/Models.Model1.ssdl|res://*/Models.Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=testSource;initial catalog=CatalogName;user id=sa;password=***********;multipleactiveresultsets=True;application name=EntityFramework"
I am aware of provider=System.Data.SqlClient; provider connection string="data source=testSource; initial catalog=CatalogName; user id=sa; password=**
Can anyone tell me what does string metadata=res://*/Models.Model1.csdl|res://*/Models.Model1.ssdl|res://*/Models.Model1.msl;
mean?
And, one more thing i need to confirm, if i want to edit in the Entity Connection String, can i do it?
回答1:
The metadata field is required in an EF connection string and specifies:
A pipe-delimited list of directories, files, and resource locations in which to look for model and mapping information.
(source: http://msdn.microsoft.com/en-us/library/system.data.entityclient.entityconnection.connectionstring.aspx)
Or put in other words:
The pointer to the metadata files (Conceptual Schema Definition Layer [CSDL], Mapping Schema Layer [MSL], and Store Schema Definition Layer [SSDL])
(source: http://msdn.microsoft.com/en-us/library/orm-9780596520281-01-16.aspx)
回答2:
Everything what you need, you have in manual:
http://msdn.microsoft.com/en-us/library/cc716756%28v=vs.110%29.aspx#fbid=FpiOK3ZYdUD
来源：https://stackoverflow.com/questions/21134573/entity-framework-connection-string-definition