nickalbrecht

public static partial class ExtensionMethods
{
    public static bool IsNullOrDefault<T>([NotNullWhen(false)] this T? value) where T : struct
    {
        //return value == null || value.Equals(default(T)); Simpler, but my research online recommended using EqualityComparer<T>.Default instead of value.Equals
        return !value.HasValue || EqualityComparer<T>.Default.Equals(value.Value, default);
    }
}

nickalbrecht

    [GeneratedRegex(@"\{(\d+)\}")]
    private static partial Regex FormattableStringArgumentRegex();
    
    /// <summary>
    /// Extension method for combining two <see cref="FormattableString"/>, and returning a new <see cref="FormattableString"/> with the combined arguments and format
    /// </summary>
    /// <remarks>Originally added to facilitate dynamically building up querystrings that EFCore would take and excute</remarks>
    public static FormattableString Combine(this FormattableString baseFormattableString, FormattableString addingFormattableString)
    {
        var regex = FormattableStringArgumentRegex();

nickalbrecht

public static string? EllipsizeString(this string text, int? maxLength, EllipseStyle ellipseStyle)
{
    if (string.IsNullOrEmpty(text))
        return null;

    const string ellipsis = "...";
    var preferredCharacters = new[] { ' ', ',', '.', ';', ':', '?', '!' };
    string? truncatedString = null;

    if (text?.Length > maxLength) {

nickalbrecht

/// <summary>
/// Custom ordering logic for <see cref="SelectListItem"/>s that supports pinning certain
/// <see cref="SelectListGroup"/> names to the top of the list, pushing others to the bottom,
/// and sorting everything else alphabetically in between.
/// </summary>
public class GroupedSelectListItemComparer(IList<string>? prioritizedGroupNames, IList<string>? deprioritizedGroupNames, bool fallbackToText)
    : Comparer<SelectListItem>
{
    private readonly IList<string>? prioritizedGroupNames = prioritizedGroupNames;
    private readonly IList<string>? deprioritizedGroupNames = deprioritizedGroupNames;

nickalbrecht

# I use the days since Jan 1, 2000 as part of my build number to mimic a behavior found with .NET Full Framework
# that would autoincrement the 4th piece of the version information based on this math. I started using it as a
# way to reverse enginer the build date at runtime. After switching to .NET Core,I lost this, and start using this
# logic to get that behavior back
# Example build numbers resulting from this...
# 7.0.featurebranch.1+7550
# 7.0.1+7550

# Inspiration for the versioning differently between branches
# https://medium.com/@ychetankumarsarma/build-versioning-in-azure-devops-pipelines-94b5a79f80a0

nickalbrecht

[HtmlTargetElement("CollectionItem")]
public class CollectionItemTagHelper : TagHelper
{
    private readonly IHtmlHelper htmlHelper;

    [ViewContext]
    [HtmlAttributeNotBound]
    public ViewContext ViewContext { get; set; }

    public CollectionItemTagHelper(IHtmlHelper htmlHelper)

nickalbrecht

public static class CollectionEditingHtmlExtensions
{
    /// <summary>
    /// Begins a collection item by inserting a hidden field for the index value
    /// </summary>
    /// <param name="collectionName">The name of the collection property that owns this item</param>
    public static IDisposable BeginCollectionItem<TModel>(this IHtmlHelper<TModel> html, string collectionName)
    {
        return BeginCollectionItem(html, collectionName, Guid.NewGuid());
    }

nickalbrecht

Sample of some files I whipped up to try and demonstrate how to provide a
custom RazorPage to list errors recorded in StackExchange's Exceptional

nickalbrecht

/*
References (F4 - Additional References - Add...)
~~~~~~~~~~~~~~~~~~~
<Your AspNetCore site assembly>
* Check Reference ASP.NET Core

Using (F4 - Additional Namespace Imports)
~~~~~~~~~~~~~~~~~~~
Microsoft.AspNetCore.Hosting
Microsoft.Extensions.Configuration

nickalbrecht

using System.ComponentModel.DataAnnotations;
using Intellitive.AspNetCore.Validators;
using Microsoft.AspNetCore.Mvc.DataAnnotations;
using Microsoft.Extensions.Localization;

/// <summary>
/// Provider for wiring up support of client side validation for <see cref="RequireNonDefaultAttribute"/> via <see cref="RequireNonDefaultAttributeAdapter"/>
/// </summary>
public class ValidationAttributeAdapterProvider : IValidationAttributeAdapterProvider
{