Show DebuggerDisplay in PropertyGrid C#

Answer 1

How about this, which displays the same text in the debugger and PropertyGrid:

[DebuggerDisplay("{.}")]
[TypeConverter(typeof(ExpandableObjectConverter))]
public class DebugModule : Module
{
    public int FPS { get; set; }

    public override string ToString() { return "FPS = " + FPS; }
}

Or if you need to use ToString for something else:

[DebuggerDisplay("{DebugDisplayText}")]
[TypeConverter(typeof(DebugModuleConverter))]
public class DebugModule : Module
{
    public int FPS { get; set; }

    private string DebugDisplayText { get { return "FPS = " + FPS; } }

    public class DebugModuleConverter : ExpandableObjectConverter {
        public override object ConvertTo(ITypeDescriptorContext context,
                System.Globalization.CultureInfo culture, object value,
                Type destinationType) {
            if(destinationType == typeof(string)) {
                return ((DebugModule) value).DebugDisplayText;
            }
            return base.ConvertTo(context, culture, value, destinationType);
        }
    }
}