Non-invocable member cannot be used like a method?

Where you've written "OffenceBox.Text()", you need to replace this with "OffenceBox.Text". It's a property, not a method - the clue's in the error!

As the error clearly states, OffenceBox.Text() is not a function and therefore doesn't make sense.

It have happened because you are trying to use the property "OffenceBox.Text" like a method. Try to remove parenteses from OffenceBox.Text() and it'll work fine.

Remember that you cannot create a method and a property with the same name in a class.

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By the way, some alias could confuse you, since sometimes it's method or property, e.g: "Count" alias:

Namespace: System.Linq

using System.Linq

namespace Teste
{
    public class TestLinq
    {
        public return Foo()
        {
            var listX = new List<int>();
            return listX.Count(x => x.Id == 1);
        }
    }
}

Namespace: System.Collections.Generic

using System.Collections.Generic

namespace Teste
{
    public class TestList
    {
        public int Foo()
        {
            var listX = new List<int>();
            return listX.Count;
        }
    }
}

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• Source - Linq: https://msdn.microsoft.com/library/bb338038(v=vs.100).aspx
• Source - List: https://msdn.microsoft.com/pt-br/library/27b47ht3(v=vs.110).aspx