How to Gets the name of the instance？

Question

Let's say we have a class:

Class Myclass

Class Myclass

{    
    public string MyINstranceName()
   {
        return .... // how to get the instrance name here?  here will be "myclass1"   
                          in this demo

   }
}

// Create an instance

Myclass myclass1 = new Myclass();

}

// Create an instance

Answer 1

Probably you should consider an alternative:

class MyClass
{
    public readonly string File;
    public readonly int Line;

    public MyClass( [CallerFilePath] string file = null, [CallerLineNumber] int line = 0 ) 
    {
        File = file;
        Line = line;
    }

    public string MyInstanceLocation( )
    {
        return Path.GetFileName( File ) + " " + Line;
    }
}

. . .

MyClass myclass1 = new MyClass();

This offers the file and the line of the instantiation, which is useful too.

Answer 2

Hi,@兰树豪. Welcome Microsoft Q&A. In C#, the instance name is not directly accessible within the class itself. The instance name is a reference to the object, and it is not stored as a property or value within the object.

If you want to get a custom name or identifier for each instance of the MyClass class, you would need to pass it explicitly when creating the instance. Here's an example:

public class MyClass
{
    public string InstanceName { get; set; }

    public MyClass(string instanceName)
    {
        InstanceName = instanceName;
    }

    public string GetInstanceName()
    {
        return InstanceName;
    }
}

create an instance of MyClass:

MyClass myClass1 = new MyClass("myclass1");
string instanceName = myClass1.GetInstanceName();  // Returns "myclass1"

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Answer 3

you are not asking the instance name, but rather the name of variable that references it. there can be any number of references.

Myclass myclass1 = new Myclass();
Myclass myclass2 = myclass1;      // references the same instance as myclass1