Adds the given action to the list of actions called when the handler object is disposed

Adds the given action to be called when the handler finishes

Cancels the current handler execution

Prevents the recursion of the handler execution using the given unique key. The handler won't execute again with the given key until the current execution is finished. Returns true, if recursion is detected and the code shouldn't continue. Otherwise returns false.

Make sure the objects get disposed

Gets the value from the object collection

Locks the event on the given lock object. The context stays locked until the handler is disposed.

Sets the value to the object collection

Adds the given object to the list of object that get disposed when the handler object is disposed

Returns true if given list of columns do not have null values in the object