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data-access-layer

I’m having problems understanding IQueryable

August 29, 2022 by Magenaut

So I’m trying to understand IQueryable<T>. A tutorial I’m reading suggests using it but not really sure why. The code simply returns some values using LINQ to SQL. I’ve done this plenty of times in the past, but not using IQueryable<T>

Categories ASP.NET, Q&A Tags asp.net, c#, collections, data-access-layer Leave a comment

ASP.Net Layered app – Share Entity Data Model amongst layers

August 27, 2022 by Magenaut

How can I share the auto-generated entity data model (generated object classes) amongst all layers of my C# web app whilst only granting query access in the data layer? This uses the typical 3 layer approach: data, business, presentation.

Categories ASP.NET, Q&A Tags ado.net-entity-data-model, asp.net, data-access-layer, entity-framework Leave a comment

No context type was found in the assembly

August 26, 2022 by Magenaut

I’m using .NET 4.0, MVC3, and EF5 with code first.

Categories ASP.NET, Q&A Tags asp.net, connection-string, data-access-layer, entity-framework, entity-framework-5 Leave a comment

Is List better than DataSet for UI Layer in ASP.Net?

August 24, 2022 by Magenaut

I want to get data from my data access layer into my business layer, then prepare it for use in my UI.

Categories ASP.NET, Q&A Tags asp.net, data-access-layer, dataset, design-patterns, list Leave a comment

Why is SQL Server not recognized, even though I’ve got a reference to DAL05.dll?

August 23, 2022 by Magenaut

It seems that whenever I add anything to my project which uses code in my commonClass.vb file, I get errors about SQL Server not being recognized.

Categories ASP.NET, Q&A Tags asp.net, data-access-layer, sql-server, vb.net Leave a comment

Separation of business logic and data access in django

August 18, 2022 by Magenaut

I am writing a project in Django and I see that 80% of the code is in the file models.py. This code is confusing and, after a certain time, I cease to understand what is really happening.

Categories Python, Q&A Tags business-logic-layer, data-access-layer, django, model-view-controller, python Leave a comment
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