May 17, 2017

This is a fork of King Wilder's dynamic linq project https://github.com/kahanu/System.Linq.Dynamic

You can copy the 'DynamicLinq.cs' and use it in your project, it is a single file that contains everything you need.

Added methods

public static IQueryable<TResult> Select<TResult>(this IQueryable source, string selector, params object[] values)

public class Person{
  public UInt32 Id { get; set; }
  public Int32 Age { get; set; }
  public String Name { get; set; }
}

public class Student{
  public Int32 Id { get; set; }
  public Int32 Age { get; set; }
  public String FirstName { get; set; }
  public String LastName { get; set; }
  public String StudentNo { get; set; }
  public String University { get; set; }
}
IList<Student> students = new List<Student>();
var result = students.Select<Person>(String.Format("new (UInt32({0}) as Id, {1} as Name)", "Id", "LastName"));

Can be used to select dynamic types and cast them to a specific class.

public static class CustomLinq{}

Can be used to create your own user defined methods.

Changed methods

The & and | operator are now bitwise operators if the left and right operand type is numeric.

Future:

Next I will implement a method, that can handle static list creation. E.g.:

var result = persons.Where("(new List<int>{22, 23, 31, 45}).Contains(Age)");

This is usefull if you want to create something like the where in clause in sql.