c# - MouseWheel EventToCommand for StackPanel -

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i have stackpanel listview inside. want able scroll inside window, change selecteditem.

to clarify; want change viewmodels selecteditem when mousewheel scrolled.

i cannot find way bind command event through eventtocommand

i thought pulled off doing 

<stackpanel>     <i:eventtrigger eventname="mousewheel">         <cmd:eventtocommand passeventargstocommand="true"                command="{binding mousescrollcommand}">         </cmd:eventtocommand >     </i:eventtrigger>     <listview/> </stackpanel>

but gets me error stating eventtrigger can assinged uielement.

then tried inside listview - didn't work.

how can bind event (with args) scrollwheel event?

i think you're there, need wrap eventtrigger in system.windows.interactivity interaction class:

<stackpanel>     <i:interaction.triggers>         <i:eventtrigger eventname="mousewheel">             <cmd:eventtocommand passeventargstocommand="true"                    command="{binding mousescrollcommand}">             </cmd:eventtocommand >         </i:eventtrigger>     </i:interaction.triggers>     <listview/> </stackpanel>

you should find raise event, , call command.

the interaction class handles events on associated object, , propagates them through eventtriggers.


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