Anonymous Types are read-only in C#

Published on June 21, 2015 by Senthil Kumar

Filed under LINQ

Last modified June 21, 2015

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If you try to set a value to the anonymous type in C# , you will receive an compiler error . The properties within the anonymous types are read-only properties.

Anonymous Types are read-only in C#

using System;
namespace AbundantCodeConsoleApp
    class Program
        static void Main(string[] args)
            var employee = new { FirstName = "Abundant", Last = "" };
            employee.FirstName = "Lot of Code"; // This will show the compiler error

In the above code snippet , you will receive an compiler error “Error    CS0200    Property or indexer ‘<anonymous type: string FirstName, string Last>.FirstName’ cannot be assigned to — it is read only    AbundantCodeConsoleApp” when you set a value for the properties FirtName or LastName of the employee(anonymous type).


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