FoxLearn | How to

How to Call the Base Constructor in C#

By Tan Lee Published on Dec 02, 2024 517

In C#, you can call a base class constructor from a derived class using the base keyword.

Deep Copy of Object in C#

By Tan Lee Published on Dec 02, 2024 550

In C#, a deep copy of an object means creating a new instance of the object, along with all objects referenced by it, so that changes to the copy do not affect the original object, and vice versa.

How to Catch Multiple Exceptions in C#

By Tan Lee Published on Dec 02, 2024 477

In C#, you can catch multiple exceptions in a single catch block by using a few different approaches.

How to cast int to enum in C#

By Tan Lee Published on Dec 02, 2024 327

In C#, you can cast an integer to an enum by using the Enum.ToObject method or by performing a direct cast if you know the integer corresponds to a valid value of the enum.

What is the difference between String and string in C#?

By Tan Lee Published on Dec 02, 2024 330

In C#, `string` is an alias for `System.String`, meaning there is no technical difference between the two, similar to how `int` is an alias for `System.Int32`.

How to use Image ComboBox Edit in C#

By Tan Lee Published on Jul 18, 2017 7.7K

To use an Image ComboBox Edit in C# with DevExpress, you need to work with the ImageComboBoxEdit control.

How to implement keyboard shortcuts in a Windows Forms application

By Tan Lee Published on Nov 29, 2024 738

Implementing keyboard shortcuts in a Windows Forms application is fairly straightforward.

How to fix 'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer'

By Tan Lee Published on Jun 11, 2024 2.38K

How to fix 'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer' and no accessible extension method 'UseSqlServer'.

How to fix Can't find Request.GetOwinContext in Web API

By Tan Lee Published on Feb 18, 2024 1.62K

In ASP.NET Web API, Request.GetOwinContext() is often used to access the OWIN context, but if you're encountering an issue where it can't be found, it's likely because either the required namespaces or NuGet packages are missing.