DbConfiguration.SetHistoryContext Method
Definition
Important
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Call this method from the constructor of a class derived from DbConfiguration to set a Func<T1,T2,TResult> delegate which allows for creation of a customized HistoryContext for the given provider for any DbMigrationsConfiguration that does not have an explicit factory set.
protected internal void SetHistoryContext (string providerInvariantName, Func<System.Data.Common.DbConnection,string,System.Data.Entity.Migrations.History.HistoryContext> factory);member this.SetHistoryContext : string * Func<System.Data.Common.DbConnection, string, System.Data.Entity.Migrations.History.HistoryContext> -> unitProtected Friend Sub SetHistoryContext (providerInvariantName As String, factory As Func(Of DbConnection, String, HistoryContext))Parameters
- providerInvariantName
- String
The invariant name of the ADO.NET provider for which this generator should be used.
- factory
- Func<DbConnection,String,HistoryContext>
A factory for creating HistoryContext instances for a given DbConnection and String representing the default schema.
Remarks
This method is provided as a convenient and discoverable way to add configuration to the Entity Framework. Internally it works in the same way as using AddDependencyResolver to add an appropriate resolver for Func<T1,T2,TResult>. This means that, if desired, the same functionality can be achieved using a custom resolver or a resolver backed by an Inversion-of-Control container.
Applies to
Entity Framework