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Karen Payne MVP Profile
Karen Payne MVP

@KarenPayneMVP

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Microsoft MVP 11, passion for sports cars 🏎, Microsoft technology📠, teacher, She,her,hers. 🟢 Developer advocate

Oregon USA
Joined July 2009
Don't wanna be here? Send us removal request.
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@KarenPayneMVP
Karen Payne MVP
@KarenPayneMVP
1 year
Did you know when logging exceptions you can remove the path to lines of code?
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@KarenPayneMVP
Karen Payne MVP
@KarenPayneMVP
8 months
When writing code, do you include empty lines for readability?
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3 months
@HumansNoContext 1. Grab forearm firmly. 2. Pull briskly down to floor. 3. Listen for broken bone. 4. Keep hold if phone available, call 911 else release. Never open the door afterwards as there may be two of them.
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10 months
Cool library for dump any object in a structured and colorful way into the Console, Trace, Debug events or your own custom output. My simple test with EF Core 8
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5 months
So @Dave_DotNet caught someone using my code without crediting me. After I asked why they praised me but also said I was impulsive, really?
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2 years
Just took a massive class project from .NET Framework 4.5.0 to .NET Core 7, 27 issues, all ambiguous namespacce issues fixed in 20 minutes. Entire upgrade 45 minutes. Next up, benchmarking.
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10 months
Are you using FluentValidation? Did you know about including rules? Using Include can help in reusability.
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11 months
EF Core 8: TimeOnly.IsBetween Code sample
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11 months
EF Core tip When using raw SQL where the statement is long, consider creating a separate method that contains the SQL as shown belong. Benefits 🔹Cleaner code 🔹Statements are easy to drop in e.g. from SSMS
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2 months
@il0venostalgia Shook hands with president Kennedy.
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1 year
C# tip: Get rid of "using static"
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Visual Studio tip: many of Microsoft methods provide sample usage by pressing CTRL+ALT+'
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4 months
@Star_Knight12 I'll stick with C#
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8 months
How to download files from the web in a .csproj file.
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8 months
Setup for EF Core configuration for development, staging and production.
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3 months
C# tip Learn to use generics, several reasons. 🔹Reduce code redundancy 🔹Code Reusability 🔹Flexibility 🔹Type Safety Example for reading appsettings.json
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10 months
Did you know about pseudovariable $returnvalue to the return value of a .NET method?
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10 months
Did you know about adding a dependency by dragging and dropping?
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10 months
Have you worked with implicit operator? (My focus for today)
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8 months
Chinook is a sample database available for SQL Server, Oracle, MySQL. Good database to learn from.
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Async guidance by David Fowl (posted this earlier but did not show up)
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AspNetCoreDiagnosticScenarios/AsyncGuidance.md at master · davidfowl/AspNetCoreDiagnosticScenarios

This repository has examples of broken patterns in ASP.NET Core applications - davidfowl/AspNetCoreDiagnosticScenarios

github.com
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7 months
Question When interacting with databases, do you write asynchronous or synchronous methods or both? And yes stored procedures were not used here.
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8 months
Question of the day In-line SQL or Stored Procedure ❓ #sql #dapper #storedprocedure
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3 months
Using aliasing, give useful names to a Dictionary. (Its not for everyone)
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10 months
Question of the day Primary constructors (1) or conventional (2)?
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2 months
@MAstronomers Time to clear the planet for the next experiment.
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6 months
Question of the day (T-SQL) There are two choices, CASE or IIF ?
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3 months
#MVP #mvpbuzz @MVPAward
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9 months
Question of the day When not using records which is your preference?
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3 months
One of the best features for .NET are extension methods. Check out a site dedicated to extension methods.
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10 months
In Visual Studio, do have this option checked/enabled? If not you should.
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1 month
New disc
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2 months
Which is your perference?
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3 years
Think it was 20 years ago when I dropped Borland Delphi for .NET
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3 months
Curious, any developers use Total Commander? Great tool, I've integrated VS Code in to the toolbar.
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Step by step guide to becoming an Core Developer in 2024
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Learn to become a modern ASP.NET core developer

Community driven, articles, resources, guides, interview questions, quizzes for asp.net core development. Learn to become a modern ASP.NET core developer by following the steps, skills, resources and...

roadmap.sh
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6 months
How to mask a credit card number
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10 months
Question of the day Which is your preference? (do not overthink localization)
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6 months
FluentValidation InlineValidator example 🔹Person model uses Inline validation 🔹Developer model regular validator
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8 months
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11 months
Question of the day: brackets or no brackets?
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3 months
C# developers do you use NodaTime?
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5 months
What are your essential Visual Studio extensions❓ Mine 📍 EF Core Power Tools 📍 ReSharper 📍 Markdown Editor 📍 Image preview
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10 months
Colorize runtime exceptions Source
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10 months
Question of the day Validate Birth date using DataAnnotations (1) or FluentValidation (2)?
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10 months
Did you know Enum.TryParse has a ignore case option?
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11 months
Question of the day Which is your preferred null check?
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5 months
C# efficient extension method to split strings like KarenPayne to Karen Payne, #csharp #dotnet
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9 months
Question of the day Do you use the stash feature of Git in Visual Studio?
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1 year
EF Core dynamic order by
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2 months
@OliLondonTV The real problem is letting these boxers allowed to box in the first place.
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9 months
Some useful enum helper methods. Source
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9 months
C# Challenge of the day Given a string with numbers bracketed how would you extract to a float array? No chance of nulls and all values will represent floats. (answer posted tomorrow for those not playing)
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Tip for C# raw string literals, storing SQL statement as shown below. In this case, the statement was written in SSMS using RedGates SQL-Prompt. All statements are stored in a class for statements only.
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2 months
C# the in keyword
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6 months
Essential VS2022 extensions (free) 🧵 Feel free to add yours/
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9 months
Question of the day Use this or not?
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11 months
Question, you have an application that has customers from different countries but for this application we only want customers from Germany, no other countries. In the country table Germany identifier is 9. With that, what is wrong with the following method
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11 months
Serilog.AspNetCore is .NET Core 8 ready 😀
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10 months
Streaming deserialization APIs (C #12 ) Source
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7 months
On the wall at Microsoft.
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1 year
Been answering questions on many forums for years and wonder when a developer gets some experience with C# or VB .NET they never take the time to learn the basics of generics? Example 1 allows a developer to use a CheckedListBox with a list of string or other type and keep code
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9 months
SQL-Server Dynamic data masking Documentation
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10 months
Question of the day Single character or full name variable in Lambda?
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9 months
System.Text.Json rearrange order of properties during serialization.
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10 months
Question of the day Preference?
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3 months
Did you know that if you want a specific format passed to a method, prefix with the language. Want a regular expression /*lang=regex*/ Want valid json /*lang=json*/
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3 months
SeriLog: Preserving Object Structure
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23 days
An example for custom formatting using IFormattable. #dotnet #csharp
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6 months
Question on C# validators What is your preference? I prefer FluentValidation over Data annotations
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9 months
Any interest in creating dotnet tools? Below is a sample with an interface using Spectre.Console, accessing SQL-Server databases.
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8 months
What is your choice?
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9 months
Side project of the day Update NET5 to NET8
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"Gentle introduction to Generic Repository Pattern with C#" by @KarenPayneMVP #DEVCommunity
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Gentle introduction to Generic Repository Pattern with C#

The Generic Repository pattern in C# is a design pattern that abstracts the application’s data layer,...

dev.to
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2 months
My afternoon experiment to find all interfaces in a Visual Studio solution and have zero use other than to learn something new. That is as far as it goes, compile and get the proper results.
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What type of developer are you? Given a foreach (no for) and you need the index.
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5 months
Question Who is actively working on enterprise solutions using Blazor in a fulltime job? Not looking for those who have side projects.
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11 months
EF Core 8 - Computed columns Source code, part of an ongoing repository for EF Core 8
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9 months
Question of the day Method 1 or 2?
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1 year
Decided to start writing an article on how to setup WHERE IN for a data provider and EF Core, looking good so far. #csharp #SQL #efcore
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3 months
Working on a new Core project template - Predefined SeriLog/EF Core logging - Option to regenerate data in database - Flexible to work in other project types Reason, mostly for common code patterns. A peek.
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4 months
For those developers using Bogus, the following shows an alternate way to generate data.
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2 months
How many monitors do you have?
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9 months
Reading app.config in NET8
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8 months
Question came up for importing Excel to SQL-Server. Person was rather vague but took a stab at it. Here is my solution (a newer version than post which uses both Dapper and EF Core). Uses an NuGet package ExcelMapper which works great.
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8 months
Question of the day Do you have a clean Program.cs ?
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10 months
EF Core SaveChanges/Interceptor audit to json and log to file using SeriLog. Source
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8 months
Question of the day Statement body or inverted?
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2 months
Went to run an Core project this morning and received. Your connection is not private This is after updating Chrome. Had to go to chrome://flags/allow and enable the following.
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7 months
When writing rules for class properties using FluentValidation NuGet package where there are the same rules for various classes consider the following. Implement an interface with common properties and create a validator for them followed by including them in each class as per
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10 months
Dapper/Json/SQL-Server Was looking a Microsoft SQL-Server examples, found one on using Dapper and had a library I've not seen before for working with objects and string arrays to allow working with json. My version Source code
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10 months
Aliasing C #12 stored in GlobalUsing.cs for bool.
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5 months
Currently converting a .NET Framework 4.6 class proect to .NET Core 8, my wheelhouse in that is one of my specialties.
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8 months
I like how easy it is to write extensions for FluentValidation. #csharp #FluentValidation
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6 months
Passion outside of coding: My #1 passion outside of coding is driving my sports cars modified for extremely curvy roads which we have plenty of in and around Oregon. Since it rains a lot here both cars have ceramic coating on the body and windows. What is your passion?
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5 months
Extract numbers from a string
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7 months
Here are a couple of useful string extension methods.
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Why WinForms in 2024?
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What's New with WinForms in .NET 9?

WinForms has been making a lot of improvements for our developers. This session will go over some of these improvements in both the runtime and the Visual Studio WinForms designer. You'll see that...

build.microsoft.com
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