Checking to see if ViewBag has a property or not, to conditionally inject JavaScript

Question

Consider this simple controller:

Porduct product = new Product(){
  // Creating a product object;
};
try
{
   productManager.SaveProduct(product);
   return          


        

Answer 1

Your code doesnt work because ViewBag is a dynamic object not a 'real' type.

the following code should work:

public static bool Has (this object obj, string propertyName) 
{
    var dynamic = obj as DynamicObject;
    if(dynamic == null) return false;
    return dynamic.GetDynamicMemberNames().Contains(propertyName);
}