31 lines
1.1 KiB
C#
31 lines
1.1 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Linq.Expressions;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace Auth.Core.Utility;
|
|
|
|
public static class QueryableExtensions
|
|
{
|
|
public static IQueryable<T> ApplySorting<T>(this IQueryable<T> source, SortModel sortBy)
|
|
{
|
|
// Parameter for lambda expression, e.g., "p" in "p => p.Property"
|
|
var parameter = Expression.Parameter(typeof(T), "p");
|
|
|
|
// Access the property on the parameter, e.g., "p.Property"
|
|
var property = Expression.Property(parameter, sortBy.SortBy);
|
|
|
|
// Cast property access to an object (boxing value types)
|
|
var converted = Expression.Convert(property, typeof(object));
|
|
|
|
// Create the lambda expression, e.g., "p => (object)p.Property"
|
|
var keySelector = Expression.Lambda<Func<T, object>>(converted, parameter);
|
|
|
|
// Apply OrderBy or OrderByDescending based on the ascending flag
|
|
return sortBy.SortDirection == SortDir.Ascending
|
|
? source.OrderBy(keySelector)
|
|
: source.OrderByDescending(keySelector);
|
|
}
|
|
}
|