How to create a Visual Studio C# property that opens the edit box

Question

I’d like someone to help me with a situation. Whoever has an example please answer me. I would like to create a property in a User Control object, and that in this property opened the edit box, as an example below:

Follow code from my User Control:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp13
{
    public partial class UserControl1 : UserControl
    {
        public UserControl1()
        {
            InitializeComponent();
        }

        // Propriedade para informar um texto fixo.
        public string MyObservacao { get; set; }
    }
}