Entity Framework Connection String Definition

Question

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?

Vincent · Accepted Answer · 2014-01-15 10:22:06Z

5

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)

answered Jan 15, 2014 at 10:22

Vincent

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Rayet · Accepted Answer · 2014-01-15 10:18:39Z

1

Everything what you need, you have in manual:

http://msdn.microsoft.com/en-us/library/cc716756%28v=vs.110%29.aspx#fbid=FpiOK3ZYdUD

answered Jan 15, 2014 at 10:18

Rayet

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1 Comment

Paul George Over a year ago

This is actually a very useful page!

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