views:

926

answers:

1

I have in my application a data template that has a few buttons. I want those buttons' even handler to be fired in the current page (I am using this template in many pages) rather than in the Application.xaml.vb/cs file, since I want different actions on each page.

I hope I am clear.

+2  A: 

You can use commanding to achieve this. Have the Buttons in the DataTemplate execute specific Commands:

<Button Command="{x:Static MyCommands.SomeCommand}"/>

Then have each view that uses that DataTemplate handle the Command:

<UserControl>
    <UserCommand.CommandBindings>
         <CommandBinding Command="{x:Static MyCommands.SomeCommand}"
                         Executed="_someHandler"/>
    </UserCommand.CommandBindings>
</UserControl>

EDIT after comments: Once you have created a code-behind for your ResourceDictionary as per these instructions, you can simply connect events in the usual fashion:

In MyResources.xaml:

<ListBox x:Key="myListBoxResource" ItemSelected="_listBox_ItemSelected"/>

Then in MyResources.xaml.cs:

private void _listBox_ItemSelected(object sender, EventArgs e)
{
    ...
}

HTH, Kent

Kent Boogaart
Then how would you set some of the events in the code behind?And what if I use ResourceDictionary (that doesn't have a code behind file) and I want to refer to a handler in the ResourceDictionary page itself.
Shimmy
You can easily have a code-behind file for a ResourceDictionary. See http://stackoverflow.com/questions/92100/is-it-possible-to-set-code-behind-a-resource-dictionary-in-wpf-for-event-handli
Kent Boogaart
1) please edit the 2nd snippet regarding how to address the event to a local handler.2) what's MyCommands, a declaration?
Shimmy
1) OK, edited. 2) You'll need to read up on commanding and routed commands in particular.
Kent Boogaart
I don't want to fire the ItemSelected event, I want to fire the event in the DataTemplate's button, since I have many button's in the template (i.e. remove, edit, move up, move down and more plenty of buttons).thanks.
Shimmy
Again, read about commanding.
Kent Boogaart
LINK????????????????
Shimmy