I have tried to make a custom data type  ( <input type="password" />  ), I´m using the usercontrol wrapper. The value get stored and i can retrieve it in my template. But in umbraco backend, i can´t see that the field contains any data, there are no dots / star like this

I have tried debugging in vs2012, to verify that the data gets saved and retrived.

My code:

namespace WebApplication1
{
    public partial class maskedField : System.Web.UI.UserControl,
        umbraco.editorControls.userControlGrapper.IUsercontrolDataEditor
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        public object value
        {
            get { return TextBox1.Value; }

          
            set
            {
                if(value != null && !String.IsNullOrEmpty(value.ToString()))
                TextBox1.Value = value.ToString();
            }
        }
    }
}