ObjectContext Constructor (String^)

 

Initializes a new instance of the ObjectContext class with the given connection string and default entity container name.

Namespace:   System.Data.Objects
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public:
ObjectContext(
	String^ connectionString
)

Parameters

connectionString
Type: System::String^

The connection string, which also provides access to the metadata information.

Exception Condition
ArgumentNullException

The connectionString is null.

ArgumentException

The connectionString is invalid.

-or-

The metadata workspace is not valid.

The connectionString is a string that contains information that is required to access a conceptual model and to connect to a data source. The EntityConnectionStringBuilder class can be used to correctly format the string.

The generate a named connection string that is stored in the application's configuration file. This named connection string can be supplied instead of the connectionString parameter when instantiating the ObjectContext class.

The example in this topic is based on the AdventureWorks Sales Model. The example shows how to construct an ObjectContext.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 3.5
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