how can i print the name of the variables contained in the collection?-CodePudding

I have a collection containing variables I want to print the names of the variable in this collection

Advantage, you can do this whether you "own" the class or not.

Option 2 - Use an interface to guarantee the properties exist

Define an interface that has the desired properties and accessibility.

interface INameAndValueProvider
{
    string Name { get; }
    object Value { get; }
}

If minimal classes (for example) implement the interface like this:

class ClassA : INameAndValueProvider
{
    public string Name { get; set; } = "A";
    public object Value { get; set; } = 1;
}
class ClassB : INameAndValueProvider
{
    public string Name { get; set; } = "B";
    public object Value { get; set; } = "Hello";
}
class ClassC : INameAndValueProvider
{
    public string Name { get; set; } = "C";
    public object Value { get; set; } = Math.PI;
}

You can make an object[] containing one of each:

var collection = new object []
{
    new ClassA(),
    new ClassB(),
    new ClassC(),
};

Now iterate the collection, using an implicit cast to INameAndValueProvider.

foreach (INameAndValueProvider item in collection)
{
    Console.WriteLine("variable name: "   item.Name);
    Console.WriteLine("variable value: "   item.Value);
    Console.WriteLine("variable type : "   item.GetType().Name);
    Console.WriteLine("***************************** ");
}