Catel implements a custom implementation of the DisplayAttribute known in the DataAnnotations namespace of .NET. This attribute uses the ILanguageService so you can easily have all translations in a single location when using Catel.

Note that this is still work in progress, we would love to support this, but MS sealed the class so we cannot derive from it (at the moment)

Using the attribute

Using the attribute is really easy. Just put the attribute on top of any method, property, field or parameter like this:

public enum Condition
{
	[DisplayName("Contains")]
	Contains,
	
	[Display("StartsWith")]
	StartsWith,
	
	[Display("EndsWith")]
	EndsWith,
	
	[Display("EqualTo")]
	EqualTo,
	
	[Display("NotEqualTo")]
	NotEqualTo,
	
	[Display("GreaterThan")]
	GreaterThan,
	
	[Display("LessThan")]
	LessThan,
	
	[Display("GreaterThanOrEqualTo")]
	GreaterThanOrEqualTo,
	
	[Display("LessThanOrEqualTo")]
	LessThanOrEqualTo,
	
	[Display("IsEmpty")]
	IsEmpty,
	
	[Display("NotIsEmpty")]
	NotIsEmpty,
	
	[Display("IsNull")]
	IsNull,
	
	[Display("NotIsNull")]
	NotIsNull
}

Using the ILanguageService

By default, the attribute uses the ILanguageService to resolve the values to show. The DisplayAttribute uses conventions to resolve the different values from the resources.

Property	ResourceName used when resolving	Fallback value
ShortName	[ResourceName]_ShortName	Name
Name	[ResourceName]_Name	No fallback value, will return empty value
Description	[ResourceName]_Description	No fallback value, will return empty value
Prompt	[ResourceName]_Prompt	No fallback value, will return empty value
GroupName	[ResourceName]_GroupName	No fallback value, will return empty value