Event Routing and events on buttons inside a ListBox

03-10-2008 8:44 PM |

I am creating a set of buttons inside of a ListBox and am having trouble dynamically adding event handlers to deal with a situation where a button in the list has been clicked.  Here's the setup:

I have a list box, let's call it _listBox and I have a set of classes called ButtonA, ButtonB, and ButtonC.  These classes inherit from a base type of ButtonBase, which inherits from the Button control.  I add these buttons dynamically to the listbox like so:

ButtonA a = new ButtonA();
ButtonB b = new ButtonB();
ButtonC c = new ButtonC();

_listBox.Items.Add(a);
_listBox.Items.Add(b);
_listBox.Items.Add(c);

_listBox.Height = a.Height + b.Height + c.Height;

Everything renders more or less like I expect it to.  Within the constructor for ButtonBase (the class each button inherits from) I attach some event to the LeftMouseButtonUp event:

MouseLeftButtonUp += new MouseButtonEventHandler(DoAction);

And DoAction has a signature of:

public void DoAction(object o, MouseButtonEventArgs e)

But every time I click the button, this event is not fired.  I tried overriding the Click function in the base Button class and got the same result.  I have verified that the constructor for ButtonBase is firing and that the line that adds the DoAction event handler to the MouseLeftButtonUp event does execute.

Help!

Re: Event Routing and events on buttons inside a ListBox

03-10-2008 11:09 PM |

this post should help

http://leeontech.wordpress.com/2008/03/11/adding-event-handlers-to-buttons-inside-a-listbox/

Re: Event Routing and events on buttons inside a ListBox

03-11-2008 12:11 AM |

Sorry I couldn't really follow what was being explained there.  Why isn't the event being routed as I'm expecting?