Event firing problem

[Mark Aurit]

I create a simple web page, put on a couple of
<asp:listboxes with
autopost=true. I then write code in the events behind
them, doing some simple stuff like using the values in the
first listbox to effect the values in the second listbox
(with a button to fire off Page_Load, which processes the
selected values in the listboxes). When I step through
them in the debugger I see that the events behind the
listboxes fire when I select values in the listboxes, and
Page_Load doesnt fire until I click on the button -
exactly as I expect.

However, when I take the same listboxes and place them in
a web control (which inherits it a base class), Page_Load
is always called when I select items in the listbox (after
Page_Load processes the event behind listbox is fired, but
the damage is done) - NOT what I want.

I would like to solve this myself, but so far all Ive done
is spent a lot of quality time in the debugger, and
deadlines loom near. Can someone please give me some
ideas on how to solve this, where to start looking?

Thanks much, Mark

[MS News \(MS ILM\)]

are you using Page.IsPostBack to init or not to init ?

"Mark Aurit" <ma********@ngc.com> wrote in message
news:02****************************@phx.gbl...

I create a simple web page, put on a couple of
<asp:listboxes with
autopost=true. I then write code in the events behind
them, doing some simple stuff like using the values in the
first listbox to effect the values in the second listbox
(with a button to fire off Page_Load, which processes the
selected values in the listboxes). When I step through
them in the debugger I see that the events behind the
listboxes fire when I select values in the listboxes, and
Page_Load doesnt fire until I click on the button -
exactly as I expect.

However, when I take the same listboxes and place them in
a web control (which inherits it a base class), Page_Load
is always called when I select items in the listbox (after
Page_Load processes the event behind listbox is fired, but
the damage is done) - NOT what I want.

I would like to solve this myself, but so far all Ive done
is spent a lot of quality time in the debugger, and
deadlines loom near. Can someone please give me some
ideas on how to solve this, where to start looking?

Thanks much, Mark

[Mark Aurit]

Page.IsPostback to populate the first listbox ("lc1"); the
SelectedIndexChanged event for lc1 is used to populate the
second listbox ("lc2").

-----Original Message-----
are you using Page.IsPostBack to init or not to init ?

"Mark Aurit" <ma********@ngc.com> wrote in message
news:02****************************@phx.gbl...

I create a simple web page, put on a couple of
<asp:listboxes with
autopost=true. I then write code in the events behind
them, doing some simple stuff like using the values in the first listbox to effect the values in the second listbox
(with a button to fire off Page_Load, which processes the selected values in the listboxes). When I step through
them in the debugger I see that the events behind the
listboxes fire when I select values in the listboxes, and Page_Load doesnt fire until I click on the button -
exactly as I expect.

However, when I take the same listboxes and place them in a web control (which inherits it a base class), Page_Load is always called when I select items in the listbox (after Page_Load processes the event behind listbox is fired, but the damage is done) - NOT what I want.

I would like to solve this myself, but so far all Ive done is spent a lot of quality time in the debugger, and
deadlines loom near. Can someone please give me some
ideas on how to solve this, where to start looking?

Thanks much, Mark

.