How do I remove the elipsis for a custom UITypeEditor that is read-only?

Question

I have two fields that are of the same type in my property-grid. However, one is read-only, the other is editable.

Both of these fields are of a custom type, and thus have a custom UITypeEditor, which puts the elipsis ([...]) button on the field.

[
     CategoryAttribute("5 - Wind"),
     DisplayName("Factored Area"),
     Description("The factored area for the segment."),
     EditorAttribute(typeof(umConversionTypeEditor), typeof(UITypeEditor)),
     TypeConverter(typeof(umConversionTypeConverter)),
     ReadOnly(true)
]
public FactoredAreaClass FactoredArea { ... }

[
     CategoryAttribute("5 - Wind"),
     DisplayName("Factored Area Modifier"),
     Description("The factored area modifier."),
     EditorAttribute(typeof(umConversionTypeEditor), typeof(UITypeEditor)),
     TypeConverter(typeof(umConversionTypeConverter))
]
public FactoredAreaClass FactoredAreaMod { ... }

In this example, FactoredAreaMod is available to be edited, but BOTH have the elipsis, which will cause great confusion with the users. Any way to turn that off??

Answer 1

Use the ReadOnly attribute. This marks it as design-time read-only while keeping it read/write for runtime use.

Also, you should either apply the Editor attribute to the type rather than the properties. There's no gain in applying it to a property if you don't want that property to be editable.