Writing bound controls

I've got a composite custom control that I've bound to a data object. All works find - but when I modify the data in the data object that is bound - how do I get my custom control to re-read from the master data source?

I know I run DataBind() to get it to rebuild from the data source, but the data held inside the control is still the old data unless I set the data source again:

i.e.
MyControl.DataSource = MasterData
MyControl.DataBind()

in an ideal world I'd be able to modify MasterData and then just call MyControl.DataBind()

Given that we can't set a property ByRef - how do I get my control to read its data from the master in a similar fashion?

Pseudo code is fine - I'm sure I'm just missing a concept here...

re: Writing bound controls

I think in this case you would need to re-set it unfortunatly.

What I have done in the past, when dealing with windows apps at least, is to be like:
And then I do my workings on THAT object, as i generally let the program lose reference to the original object that I supplied to the DataSource

re: Writing bound controls

Yeah, I was afraid you were going to say that... maybe I'll plug some reflection into my control and see if I can grab a handle to the original and attach it somehow...

It would be nice if I could have it just bind to the master data source so I don't have to keep worrying about accessing the one contained in my control.

In Javascript you can supply an inline functions as parameters so that it'll do things like this... I'm curious if I can force a lambda expression in there in a similar fashion...