Attribute Browsable only if another property is set to True

Question

I want a property to be display only if another boolean property is set to true.

I don't know how to create this dinamically visulization. The property browsable is waiting a bool value

There is no problem to this property be serialized or not.

[DataMember(Order = 1)]
[Display(Name = "Checked")]
public bool IsChecked{ get; set; } = true;
    
[DataMember(Order = 2)]
[Display(Name = "Address")]
[IsBrowseable(IsChecked)]
public string Address{ get; set; }

How do you want to display it (HTML, Winforms, WPF, ..) what have you tried so far and what's the problem? — Christoph Lütjen
– Christoph Lütjen, Commented Dec 22, 2020 at 13:26
Hello @ChristophLütjen, I'm trying to apply it on a WPF application. I only tried to find a attribute that could be good, as this browsable. With the browsable as the way I've added it show an error "An object reference is required for the non- static field" — OlivF
– OlivF, Commented Dec 22, 2020 at 13:32
I'm can't help you with WPF, but from a quick search, this looks like it could help: stackoverflow.com/questions/30172392/… - if not: It often helps, if you add your XAML code too to allow readers here to fully understand your problem. It's really important to re-read questions on SO and check if other have a chance to understand it without knowing anything from your project except what you provided in you question. — Christoph Lütjen
– Christoph Lütjen, Commented Dec 22, 2020 at 13:42

Efi Z · Accepted Answer · 2020-12-22 14:20:14Z

0

That's not possible, in this case the attribute argument value must be a compile-time constant. Changing IsChecked while the application is running would not affect the attribute anyhow, so in your case doing [IsBrowseable(true)] would have the same result as using the IsChecked property with it's default value.

For more information check out MSDN's C# language specification for attributes which states the following:

An expression E is an attribute_argument_expression if all of the following statements are true:

The type of E is an attribute parameter type (Attribute parameter types).

At compile-time, the value of E can be resolved to one of the following:

A constant value.

A System.Type object.

A one-dimensional array of attribute_argument_expressions.

answered Dec 22, 2020 at 14:20

Efi Z

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