How get a constant value into anonymous type in lambda expression?

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I'm tring to create a methode to response to this case:

this.GetRessource<T>(p => new { "TestConstant", p.Property });

The GetRessource methode must extract the constant value and the property name. I found how to extract the property name, but I not find how to get the constant value.

There is my methode.

public void GetResource<TObject>(Expression<Func<TObject, object>> expression)
{
    string constantValue = string.Empty;
    string propertyName = string.Empty;

    // Get propertyName.
    var expressionProperties = expression.Body.Type.GetProperties();
    var properties = typeof (TObject).GetProperties()
                                          .Where(pO => lExpressionProperties.Any(pE => pO.Name == pE.Name))
                                          .Select(p => p.Name).ToArray();

     propertyName = lProperties[0]; // = Property
     // constantValue = ?? ;  // must return TestConstant

}

Someone had already be in this situation? or can help me?

Thanks.

asked 4 mins ago

sid

1

How get a constant value into anonymous type in lambda expression?