can-you-get-a-value-in-a-structure-through-an-outside-variable-in-c | C# Online Compiler

can-you-get-a-value-in-a-structure-through-an-outside-variable-in-c by IT WeiHan

using System;
using System.Linq;
using System.Reflection;

public class Program
{
	public static void Main()
	{
		var test = new test(new[] {1,2,3,4,5});
		Console.WriteLine(	test["valuesOne"][0]	); //1
		Console.WriteLine(	test["valuesTwo"][1]	); //4
	}
}

public struct test 
{
	public int[] valuesOne;
	public int[] valuesTwo;

	public test(int[] data)
	{
		valuesOne = new int[2] { data[0], data[1] };
		valuesTwo = new int[2] { data[2], data[3] };
	}

	public dynamic this[string key]
	{
		get
		{
			return this.GetFieldValue(key);
		}
	}
}

public static class Extension
{
	public static object GetFieldValue(this object t, string fieldName)
	{
		var type = t.GetType();
		var fields = type.GetFields();
		var field = fields.Single(pi => pi.Name == fieldName);
		return field.GetValue(t);
	}
}

​x
 
using System;
using System.Linq;
using System.Reflection;
​
public class Program
{
    public static void Main()
    {
        var test = new test(new[] {1,2,3,4,5});
        Console.WriteLine(  test["valuesOne"][0]    ); //1
        Console.WriteLine(  test["valuesTwo"][1]    ); //4
    }
}
​
public struct test 
{
    public int[] valuesOne;
    public int[] valuesTwo;
​
    public test(int[] data)
    {
        valuesOne = new int[2] { data[0], data[1] };
        valuesTwo = new int[2] { data[2], data[3] };
    }
​
    public dynamic this[string key]
    {
        get
        {
            return this.GetFieldValue(key);
        }
    }
}
​
public static class Extension
{
    public static object GetFieldValue(this object t, string fieldName)
    {
        var type = t.GetType();
        var fields = type.GetFields();
        var field = fields.Single(pi => pi.Name == fieldName);
        return field.GetValue(t);
    }
}
​

Unhandled exception. System.TypeInitializationException: The type initializer for 'System.Data.Entity.DbContext' threw an exception.
---> System.TypeInitializationException: The type initializer for 'Z.EntityFramework.Classic.EntityFrameworkManager' threw an exception.
---> System.TypeInitializationException: The type initializer for '' threw an exception.
---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.

File name: 'System.Configuration.ConfigurationManager, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
   at Z.Expressions.CompilerManager..cctor()
   at Z.Expressions.CompilerManager.LoadEntityFrameworkClassicConfiguration()
   at Z.Expressions.ExceptionMessage.ThrowLicenseException()
   at ..cctor()
   --- End of inner exception stack trace ---
   at .()
   at Z.EntityFramework.Classic.EntityFrameworkManager..cctor()
   --- End of inner exception stack trace ---
   at Z.EntityFramework.Classic.EntityFrameworkManager.Initialize()
   at System.Data.Entity.DbContext..cctor()
   --- End of inner exception stack trace ---
   at System.Data.Entity.DbContext..ctor(String nameOrConnectionString)
   at Program.EntityContext..ctor()
   at Program.GenerateData()
   at Program.Main()
Command terminated by signal 6

Last Run:	5:45:08 pm
Compile:	0.04s
Execute:	0.18s
Memory:	12.74Mb
CPU:	0.22s

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