Very Computer

Hi All,

I have a user control hierachy as follows:

- Main Page
   |--- User Control 1
   |       |--- User Control 1.1
   |       |--- User Control 1.2
   |--- User Control 2

My questions are:

1. How would i invoke a method in User Control 2 from User Control 1...
i know this probably doesn't make sense to do this but i would be
interested to know how anyway.

2. How would i reference an attribute/method in Main Page from any of
the User Controls?

3. How would i get the name of the Main Page from User Control 1 so
that i could dynamically build a URL... for example... in User Control
1, i want to create the following URL:

   http://www.foo.com/<main page>?SomeId1=1&SomeId2=2

...obviously if User Control 1 is being called from a number of
different places <main page> is going to be different each time, so how
do i get that value?

Any help would be much appreciated,

Thanks.

(1) to get reference to MainPage from any of the usercontrols, use thje
Page property of the UserControl
(2) To refer to UserControl 1 from UserControl 2, you would access the
Controls property of the Main Page (Note - I believe you can see UC-1
and UC-2 in the Controls property, but I don't believe you can see
UC-1.1 or UC-2.2 ... I don't recall there being a "All" collection like
there is in DOM)
(3) To get the URL, use MyUserControl.Page.Request.ApplicationPath
(which gets you to the current application root virtual path)

Hope that helps - Joe.

to locate UC-2 from UC-1, assuming you know the ID of UC-2 :

private function FindUC2(UC2ID as string) as system.web.ui.usercontrol
dim ctrl as control
dim pg as system.web.ui.page = me.page
for each ctrl in pg
    if ctrl.ID=UC2ID then return ctype(ctrl,system.web.ui.usercontrol)
next
return nothing
end function

Also, you can use the ResolveUrl method of the Page to  convert a
relative path (which you're likely to have) into an absolute virtual
path that can be given to a browser.

Joe.