Can Anonymous Classes Be Stored in C# Generic Lists?

Anonymous Classes in Generic Lists

In C# 3.0, you have the flexibility to define anonymous classes using the syntax:

var o = new { Id = 1, Name = "Foo" };

A common question arises as to whether it's possible to store these anonymous classes in a generic list. Let's explore this issue.

Consider the following example:

var o = new { Id = 1, Name = "Foo" };
var o1 = new { Id = 2, Name = "Bar" };

List list = new List();
list.Add(o);
list.Add(o1);

An alternative scenario involves adding anonymous classes within a loop:

List<var> list = new List<var>();

while (...)
{
    ....
    list.Add(new { Id = x, Name = y });
    ....
}

Solution:

To resolve this, you can utilize an approach like:

var list = new[] { o, o1 }.ToList();

Alternatively, you can employ type inference using generic methods:

public static List<T> CreateList<T>(params T[] elements)
{
    return new List<T>(elements);
}

var list = CreateList(o, o1);

Implementing these techniques allows you to effectively manage anonymous classes within generic lists.

The above is the detailed content of Can Anonymous Classes Be Stored in C# Generic Lists?. For more information, please follow other related articles on the PHP Chinese website!