C#

using System;

public class Program
{
    public static void Main()
    {
        Test t = new Test();
        t.WriteValue("abc");
    }
}

public class Test{
    private string teststring = "xyz";

    public void WriteValue(string teststring){

        Console.WriteLine(teststring);
        Console.WriteLine(this.teststring);
    }
}

Quote:

This is because the ValueTuple type's named elements are erased at runtime, meaning there's no runtime representation of them.

BillWoodruff wrote:

at run-time accessing that Property returns a result that has the field Names.

VTProp = ("hello", 23, "exit");

var vtp = VTProp;

string s2 = vtp.S2;     // uses the field Name ! 

var vtp = VTProp;
Console.WriteLine("S2: {0}", vtp.S2);

ldarg.0     
call        UserQuery.get_VTProp
stloc.0     // vtp
ldstr       "S2: {0}"
ldloc.0     // vtp
ldfld       System.ValueTuple<System.String,System.Int32,System.String>.Item3 // <-- NB: "Item3", not "S2".
call        System.Console.WriteLine

ValueTuple<string, int, string> vtp = VTProp;
Console.WriteLine("S2: {0}", vtp.Item3);

BillWoodruff wrote:

at run-time

Richard Deeming wrote:

Or perhaps I've misunderstood what you mean by the phrase "run-time"?

public (string S1, int I1, string S2) VTProp {set; get;} VTProp = ("hello", 23, "exit");

var vtp = VTProp;

string s2 = vtp.S2;     // uses the field Name ! 

Type t = VTProp.GetType();
Console.WriteLine(t.GetField("S2"));
// "null"


foreach (FieldInfo field in VTProp.GetType().GetFields())
{
    Console.WriteLine(field.Name);
}
// Item1
// Item2
// Item3


dynamic vtp = VTProp;
Console.WriteLine("S2: {0}", vtp.S2);
// RuntimeBinderException: 'System.ValueTuple<string,int,string>' does not contain a definition for 'S2'

Member 13685821 wrote:

i need coding for c# to make recovery software

How to get an answer to your question

Be specific!
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