CODEWITHSUNDEEP
c#objectdynamic
Yoan Petrov
Yoan Petrov

Reputation: 109

How to declare a dynamic object's property type?

I have the following issue :

I am using dynamic object ( ExpandoObject ) , whose properties I want to change runtime. What is the clue ... I want my properties to be doubles , because the user control , which I am using can not identify that the property is double if it's type is not double. As I know there is known type of the properties of the dynamic objects which should be double in the case , but it does not works for this control. So is there any explicit way , when I declare new property of the dynamic object to tell that it is double ?

Thanks in advance, Yoan

Upvotes: 0

Views: 1854

Answers (1)

Marc Gravell
Marc Gravell

Reputation: 1063774

In the case of ExpandoObject, just assign a double:

    dynamic obj = new ExpandoObject();
    obj.Foo = 123.45;
    Console.WriteLine(obj.Foo.GetType()); // System.Double

However, I would say that a dynamic object is probably not a good choice for UI binding (to a user-control), since they don't have a strong property model. In fact, most UI bindings aren't even up-to-date with dynamic, and will be trying to use System.ComponentModel (which doesn't know about dynamic).

Upvotes: 1

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