Entity framework objectcontext
WebReturns the Entity Framework ObjectContext that is underlying this context. Skip to main content. This browser is no longer supported. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. ... System.Data.Entity.Core.Objects.ObjectContext System.Data.Entity.Infrastructure ... WebJan 6, 2009 · However if you absolutely must use ObjectContext (for some reason) and you want to Unit test it you can use InMemory database. First install this Nuget package: Effort (Entity Framework Fake ObjectContext Realization Tool), which uses NMemory as the database. Install Effort.EF6 package: PM> Install-Package Effort.EF6.
Entity framework objectcontext
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WebMar 13, 2014 · As per ObjectContext class meta data they are as follow: CreateQuery():Creates an System.Data.Objects.ObjectQuery in the current object context by using the specified query string. Returned -> System.Data.Objects.ObjectQuery ExecuteFunction(): Executes a stored procedure … Web,c#,linq,entity-framework,entity-framework-6,C#,Linq,Entity Framework,Entity Framework 6,我有以下扩展方法: public static decimal? GetValue(this Member member) { return member.Readings.SelectMany(r => r.Measurements).GetLatestValue(); } GetLatestValue是另一个只使用其他LINQ扩展的扩展:OrderBy、Where、Select和First …
WebApr 24, 2012 · var parameters = new ObjectParameter[] {new ObjectParameter("FirstName", "Bob")}; return this._repositoryContext.ObjectContext.ExecuteFunction("GetByName", parameters); The stored procedures can also be mapped as function in the context and … WebFeb 4, 2024 · I've been given the task of porting an project written with Entity Framework 6 to Entity Framework Core 3.1. I've done most of the job, but I can't find a solution for replacing ObjectContext. At the moment I'm facing this kind of problem:
WebJun 14, 2012 · You'd have to use DbContext, which is a wrapper around ObjectContext with additional methods, added in EF 4.3 4.1(correction thanks to Slauma) as far as I remember - also there's a way to extract the ObjectContext from DbContext when needed: ObjectContext context = ((IObjectContextAdapter)yourDbContext).ObjectContext; … WebSep 24, 2013 · How do I "close" a database connection that's been made against my entity model? If I create a new database using the model (see "First Question", first paragraph), then try to delete it (using ObjectContext.DeleteDatabase), I get an "already in use" exception when attempting the second operation. (It's as if the connection, even when …
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WebThe DbDataReader that contains entity data to translate into entity objects. entitySetName. String. The entity set of the TResult type. mergeOption. MergeOption. The MergeOption to use when translated objects are added to the object context. The default is AppendOnly . fryer cleaner rodWebJun 12, 2012 · Entity Framework will execute your select, return back the results, use those results to create new instances of your entities (or in your case, an anonymous type), and you would then have to use each result to create a new instance of your target type, adding each one to your entity/object context, and finally call save changes on your entity ... gift card for birthdaysWebExecutes a stored procedure or function that is defined in the data source and mapped in the conceptual model, with the specified parameters. Returns a typed ObjectResult . Execute Store Command (String, Object []) Executes an arbitrary command directly against the data source using the existing connection. fryer cleaner sdsWebAug 11, 2013 · I just found that the Enumerable result should be evaluated because the Refresh method gets it as object and doesn't evaluate it.. var context = ((IObjectContextAdapter)myDbContext).ObjectContext; var refreshableObjects = (from entry in context.ObjectStateManager.GetObjectStateEntries( EntityState.Added … gift card for businessWebMy application runs on .NET framework 4.7 and I'm using Entity Framework 6.1.3. Currently, my code uses some classes from the namespace System.Data.SqlClient such as SqlParameter. I want to switch to Microsoft.Data.SqlClient. However, I'm not sure if EF6 is compatible with Microsoft.Data.SqlClient. gift card for boysWebJan 27, 2013 · Right-click on the design surface of the edmx and choose "Add code generation item" and select DbContext Generator from the Add New Item dialog (you may have to look in online templates). This will create a t4 template that generates a DbContext. If you want to keep working with the ObjectContext API, but sometimes want to switch … gift card for broadway showsWebNov 5, 2012 · Turns out there's an EntityConnection.StoreConnection property which gets you a connection to the underlying DBMS. So executing "native" SQL is as easy as this: static void ExecuteSql (ObjectContext c, string sql) { var entityConnection = (System.Data.EntityClient.EntityConnection)c.Connection; DbConnection conn = … gift card for charity shops