Member '<member name>' cannot be accessed with an instance reference

Question

In C#, unlike VB.NET and Java, you can't access static members with instance syntax. You should do:

MyClass.MyItem.Property1

to refer to that property or remove the static modifier from Property1 (which is what you probably want to do). For a conceptual idea about what static is, see my other answer.

You can only access static members using the name of the type.

Therefore, you need to either write,

MyClass.MyItem.Property1

Or (this is probably what you need to do) make Property1 an instance property by removing the static keyword from its definition.

Static properties are shared between all instances of their class, so that they only have one value. The way it's defined now, there is no point in making any instances of your MyItem class.

I had the same issue - although a few years later, some may find a few pointers helpful:

Do not use ‘static’ gratuitously!

Understand what ‘static’ implies in terms of both run-time and compile time semantics (behavior) and syntax.

• A static entity will be automatically constructed some time before
  its first use.

• A static entity has one storage location allocated, and that is
  shared by all who access that entity.

• A static entity can only be accessed through its type name, not
  through an instance of that type.

• A static method does not have an implicit ‘this’ argument, as does an instance method. (And therefore a static method has less execution
  overhead – one reason to use them.)

• Think about thread safety when using static entities.

Some details on static in MSDN:

• Static Classes in C#
• Static Constructors in C#

No need to use static in this case as thoroughly explained. You might as well initialise your property without GetItem() method, example of both below:

namespace MyNamespace
{
    using System;

    public class MyType
    {
        public string MyProperty { get; set; } = new string();
        public static string MyStatic { get; set; } = "I'm static";
    }
}

Consuming:

using MyType;

public class Somewhere 
{
    public void Consuming(){

        // through instance of your type
        var myObject = new MyType(); 
        var alpha = myObject.MyProperty;

        // through your type 
        var beta = MyType.MyStatic;
    }
}       

This causes the error:

MyClass aCoolObj = new MyClass();
aCoolObj.MyCoolStaticMethod();

This is the fix:

MyClass.MyCoolStaticMethod();

Explanation:

You can't call a static method from an instance of an object. The whole point of static methods is to not be tied to instances of objects, but instead to persist through all instances of that object, and/or to be used without any instances of the object.