public void Invoke_Method_of_an_ExpandoObject()
{
dynamic dyn = new ExpandoObject();
dyn.Foo = new Func<string>(() => "bar");
var interpreter = new Interpreter()
.SetVariable("dyn", dyn);
Assert.AreEqual(dyn.Foo(), interpreter.Eval("dyn.Foo()"));
}
//Add event to instance
public static void ExpandoObjectTest()
{
dynamic sampleObject = new ExpandoObject();
// Create a new event and initialize it with null.
sampleObject.sampleEvent = null;
// Add an event handler.
sampleObject.sampleEvent += new EventHandler(SampleHandler);
// Raise an event for testing purposes.
sampleObject.sampleEvent(sampleObject, new EventArgs());
//Passing As a Parameter
dynamic employee, manager;
employee = new ExpandoObject();
employee.Name = "John Smith";
employee.Age = 33;
manager = new ExpandoObject();
manager.Name = "Allison Brown";
manager.Age = 42;
manager.TeamSize = 10;
Func <int, int> func = x => 2 * x;
manager.Foo = func;
int i = manager.Foo(123); // now you see it
manager.Foo = null; // now you don't
WritePerson(manager);
WritePerson(employee);
//Enumerating and Deleting Members
foreach (var property in (IDictionary <String, Object>)employee)
{
Console.WriteLine(property.Key + ": " + property.Value);
}
// This code example produces the following output:
// Name: John Smith
// Age: 33
//In languages that do not have syntax for deleting members (such as C# and Visual Basic), you can delete a member by implicitly casting an instance of the ExpandoObject to the IDictionary<String, Object> interface and then deleting the member as a key/value pair. This is shown in the following example.
((IDictionary <String, Object>)employee).Remove("Name");
}
