In C#, how do I remove a property from an ExpandoObject?

Question

Say I have this object:

dynamic foo = new ExpandoObject();
foo.bar = \"fizz\";
foo.bang = \"buzz\";

How would I remove foo.bang

Answer 1

You can treat the ExpandoObject as an IDictionary<string, object> instead, and then remove it that way:

IDictionary<string, object> map = foo;
map.Remove("Jar");

Answer 2

Cast the expando to IDictionary<string, object> and call Remove:

var dict = (IDictionary<string, object>)foo;
dict.Remove("bang");

Answer 3

MSDN Example:

dynamic employee = new ExpandoObject();
employee.Name = "John Smith";
((IDictionary<String, Object>)employee).Remove("Name");

Answer 4

You can cast it as an IDictionary<string,object>, and then use the explicit Remove method.

IDictionary<string,object> temp = foo;
temp.Remove("bang");