c# - Using Usercontrol inside Datatemplate -

on project have started using caliburn.micro.

now want split large usercontrol several smaller usercontrols, can use them inside of datatemplates. eisenbergeffect suggests in answer

the viewmodels there, modelled hierachical data observablecollection<subviewmodel>.

now thought have create suiting views usercontrols subviewmodels.

my view master-details view. want present list of computers , in details view want have hardwarecomponents of those.

<listview x:name="computerviewmodels">     <listview.itemtemplate>             <datatemplate>                 <contentcontrol x:name="hardwarecomponentviewmodel" />             </datatemplate>      </listview.itemtemplate> </listview> 

i have included debug output suggested here: debug logging

and not output hardwarecomponentviewmodel except action convention not applied: no actionable element set_hardwarecomponentviewmodel

the hardwarecomponentviewmodels created time computerviewmodels created.

i use contentcontrol - way on other parts of application , works there (getting content using ioc injected outer viewmodel). not seem fit datatemplate part (which not surprising, though). subviewmodels derived screen, outer viewmodels.

how can use new usercontrol datatemplate?

take close @ eisenbergeffect's answer. it's explicitly stated, conventions don't work inside datatemplate, if have complicated template, it's better move out separate usercontrol, inside conventions work again.

that means have explicitly bind model inside template:

<listview x:name="computerviewmodels">     <listview.itemtemplate>             <datatemplate>                 <contentcontrol cal:view.model="{binding hardwarecomponentviewmodel}" />             </datatemplate>      </listview.itemtemplate> </listview> 

that should it. either or cal:model.bind="{...}", can never remember difference , use case. inside bound usercontrol (hardwarecomponentview, presume) conventions between view , view model should work usual.