Migrated Extensions

Author: DavidSuescunPelegay

src/jQueryDatatableServerSideNetCore/Extensions/LinqExtensions.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Linq;
+using System.Linq.Expressions;
+using jQueryDatatableServerSideNetCore.Models.AuxiliaryModels;
+
+namespace jQueryDatatableServerSideNetCore.Extensions
+{
+    public static class LinqExtensions
+    {
+        public static IQueryable<T> OrderByDynamic<T>(
+            this IQueryable<T> query,
+            string orderByMember,
+            DtOrderDir ascendingDirection)
+        {
+            var param = Expression.Parameter(typeof(T), "c");
+
+            var body = orderByMember.Split('.').Aggregate<string, Expression>(param, Expression.PropertyOrField);
+
+            var queryable = ascendingDirection == DtOrderDir.Asc ?
+                (IOrderedQueryable<T>)Queryable.OrderBy(query.AsQueryable(), (dynamic)Expression.Lambda(body, param)) :
+                (IOrderedQueryable<T>)Queryable.OrderByDescending(query.AsQueryable(), (dynamic)Expression.Lambda(body, param));
+
+            return queryable;
+        }
+
+        public static IQueryable<T> WhereDynamic<T>(
+            this IQueryable<T> sourceList, string query)
+        {
+
+            if (string.IsNullOrEmpty(query))
+            {
+                return sourceList;
+            }
+
+            try
+            {
+
+                var properties = typeof(T).GetProperties()
+                    .Where(x => x.CanRead && x.CanWrite && !x.GetGetMethod().IsVirtual);
+
+                //Expression
+                sourceList = sourceList.Where(c =>
+                    properties.Any(p => p.GetValue(c) != null && p.GetValue(c).ToString()
+                        .Contains(query, StringComparison.InvariantCultureIgnoreCase)));
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+            }
+
+            return sourceList;
+        }
+    }
+}