Use attribute to modify model value

Question

Is it possible to use an attribute to modify a model value?

eg.

[TrimInput]
public string SomeName {get;set;}

public string TrimInputAttribute : Attribute
{
    /// do something here?
}

possible duplicate of How to get and modify a property value through a custom Attribute? — Satpal
– Satpal, Commented Jun 16, 2014 at 14:11
Yep. Is duplicate. I thought he was trying to do something else cause the implementation of the validation attribute seemed odd. — monkeyhouse
– monkeyhouse, Commented Jun 16, 2014 at 15:56
I also found this usefull* - override the DefaultModel binder for these scenarios *stackoverflow.com/questions/1718501/… — monkeyhouse
– monkeyhouse, Commented Jun 16, 2014 at 16:45

TomTom · Accepted Answer · 2014-06-16 14:11:56Z

1

Yes, it is - but you need something to EXECUTE it. Attributes never execute any code.

What you can do is having a "ModelFixer" class that has a method that you call - and that is evaluationg the attributes and doing the operations.

All other attributes work like that - there is always a component USING the attribute (which sometimes is the runtime or the compiler).

answered Jun 16, 2014 at 14:11

TomTom

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