Is it possible to get the decorated class' type inside of the custom attribute's class? For example:
[MetadataAttribute]
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Property, AllowMultiple = false)]
public class ViewAttribute : ExportAttribute
{
public object TargetRegion { get; set; }
public Type ViewModel { get; set; }
public Type Module { get; set; }
public ViewAttribute()
: base(typeof(UserControl))
{
Module = Get开发者_运维技巧DecoratedClassType(); //I need this method
}
}
In the following example GetDecoratedClassType() would return HomeView
[View]
HomeView MyHomeView { get; set; }
Couldn't you add it as an argument in the constructor?
public class ViewAttribute : ExportAttribute
{
public object TargetRegion { get; set; }
public Type ViewModel { get; set; }
public Type Module { get; set; }
public ViewAttribute(Type decoratedClassType)
: base(typeof(UserControl))
{
Module = decoratedClassType
}
}
[View(typeof(HomeView))]
HomeView MyHomeView { get; set; }
I know it's not exactly elegant, but would that suffice? (And you should probably make the setter for Module private)
See this answer, i tend to agree, at the point of reflection you should have access to the member info that the attribute is applied to.
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