How To


Find Out What Your Entity Framework Query Is Really Doing

You can turn on logging for your Entity Framework code with a single line. Configuring it to write to a file takes only a little bit more effort.

Coding Without a Plan

I don't believe in coding design tools. I've been programming for more than 30 years now (40 years if you go back to my first class in programming). I think in code. Code is my design language and procrastination is my friend.

Let Other Processes Run When Debugging One Process

When you hit a breakpoint in Visual Studio, everything stops. If you'd rather other processes keep running, you can enable that.

Looking at Entity Framework Core 1.0

There's more (and some less) in Entity Framework Core compared to Entity Framework 6, at least in version 1.0. While you can move to Entity Framework Core now, it might be too early for you.

Build Data Applications for the Universal Windows Platform Using Entity Framework and SQLite

Saving and retrieving data is a fundamental part of all but the simplest of applications. In this article, Nick walks through getting started using Entity Framework with SQLite to persist application data.

Hashing Passwords for Fun and Security

Hashwords can use a pinch of salt for added security. There's a .NET class for that.

Deploy the Android 7 Multi-Window Mode via Xamarin

It's relatively simple to make use of the multi-window mode now that Xamarin supports it. Here's how.

Ensure Consistent Testing with Mock Objects and Moq

If you run an automated test and your test fails then you want to know that it's your fault -- not a problem in someone else's code or the result of a change in your test data. Moq lets you do that in two lines of code, even if your code uses the ASP.NET Session object.

ORM-Less Data Storage with Document Databases and Marten

Document databases are a form of NoSQL database that may store all of the information for a given object in a single instance in the database.

Leverage Joins in Entity Framework To Get Just the Data You Want

Every once in a while you'll need to use the LINQ Join to get the data you want.

Use Custom Visualizers for C++ Objects

Sometimes the default view of objects in the debugger isn't enough, especially if you operate on complex data structures. Here's one way to alter the view and use a customized one.

Logistic Regression Using R

I predict you'll find this logistic regression example with R to be helpful for gleaning useful information from common binary classification problems.

Speed Up Skip and Take in Entity Framework with Lambda Expressions

If you're using Skip and Take in LINQ to page through your data, a tweak to your syntax can cut your response time by as much as 10 percent as you page through your data.

TypeScript 2.0: Even Better Data Typing and Class Discriminants

If you care about data typing and want to avoid null/undefined errors, there's a lot you're going to like in TypeScript 2.0. And, if you like creating general purpose functions that can work with a variety of classes, there's something here for you, too.

Customizing a Xamarin Forms Application, Part 2

Last time, I created the app. This time, I take care of a few annoying but important issues with it, especially in the area of the user's experience with application connectivity.

Testing Experimental Code in Production with Scientist.NET

A .NET port of the Ruby library allows for experimental testing of code that's gone to production.

Testing Only the Code You Write: Isolating Components with Moq

When you're testing an ASP.NET MVC controller (or, really, any class at all) you want to make sure the code that fails is the code you're testing. Moq provides a simple way to isolate the code you're testing and lets you generate test cases.

It's Safe to Handle Unhandled Visual Basic and C# Exceptions

Pile on the exceptions, and .NET will have your back with the tools it provides at your disposal.

Best Practices for Lazy Loading in Entity Framework

Sometimes you want child objects retrieved with the parent object, and sometimes you don't. What you NEVER want is to retrieve child objects accidentally. Here's Peter's advice on how to get the best performance when loading child objects.

What the Single Responsibility Design Principle Has to Do with C# Best Practices

In this Q&A, highly regarded developer and educator Scott Allen shares his thoughts on coding with C#.

Life Without On Error Resume Next

The alternative to that simple error-handling combo is the Try...Catch, but it's not as simple as wrapping up your code with it.

Setting the Order of Your Script Files

Script bundling speeds up your application by reducing the time it takes to download all of your JavaScript code. But you'll need another object to get your files added to the page in the order you want.

Neural Networks Using the R nnet Package

The R language simplifies the creation of neural network classifiers with an add-on that lays all the groundwork.

Organize Your Tests to Reduce Overhead

In test-driven development, you have to decide how you'll divide your test methods between your test classes. The best solution is the one that requires the least effort on your part and implements the Single Responsibility Principle for tests.

Defining Columns, Primary, and Composite Keys in Entity Framework

There are two attributes you can put on your entity class properties: one is a convenience, the other is essential, and both are required when the primary key for a table consists of two columns.

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