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Basic working & complete tests

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Biarity
2018-01-27 15:20:57 +10:00
parent 37a6f9f70d
commit 0f7ecfb36c
21 changed files with 509 additions and 141 deletions
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27
Sieve/Extensions/OrderByDynamic.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace Sieve.Extensions
{
public static partial class LinqExtentions
{
public static IQueryable<TEntity> OrderByDynamic<TEntity>(this IQueryable<TEntity> source, string orderByProperty,
bool desc, bool useThenBy)
{
string command = desc ?
( useThenBy ? "ThenByDescending" : "OrderByDescending") :
( useThenBy ? "ThenBy" : "OrderBy");
var type = typeof(TEntity);
var property = type.GetProperty(orderByProperty);
var parameter = Expression.Parameter(type, "p");
var propertyAccess = Expression.MakeMemberAccess(parameter, property);
var orderByExpression = Expression.Lambda(propertyAccess, parameter);
var resultExpression = Expression.Call(typeof(Queryable), command, new Type[] { type, property.PropertyType },
source.Expression, Expression.Quote(orderByExpression));
return source.Provider.CreateQuery<TEntity>(resultExpression);
}
}
}

31
Sieve/Extensions/OrderByWithDirection.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace Sieve.Extensions
{
public static class LinqExtensions
{
public static IOrderedEnumerable<TSource> OrderByWithDirection<TSource, TKey>
(this IEnumerable<TSource> source,
Func<TSource, TKey> keySelector,
bool descending)
{
return descending ? source.OrderByDescending(keySelector)
: source.OrderBy(keySelector);
}
public static IOrderedQueryable<TSource> OrderByWithDirection<TSource, TKey>
(this IQueryable<TSource> source,
Expression<Func<TSource, TKey>> keySelector,
bool descending)
{
return descending ? source.OrderByDescending(keySelector)
: source.OrderBy(keySelector);
}
}
}