c# - WPF -MVVM : Checkbox Check Change in RadGridView -


here checkbox in radgridview not implemented in mvvm. implement mvvm.

<telerik:gridviewdatacolumn header="delete" > <telerik:gridviewdatacolumn.celltemplate>     <datatemplate>         <checkbox ischecked="{binding isdeleted, mode=twoway }" checked="togglebutton_onchecked"  unchecked="togglebutton_onunchecked">         </checkbox>     </datatemplate> </telerik:gridviewdatacolumn.celltemplate>

i used interaction triggers command not getting fired. how can ?

   <telerik:gridviewdatacolumn header="delete" width="60">     <telerik:gridviewdatacolumn.celltemplate>         <datatemplate>             <checkbox horizontalalignment="center" ischecked="{binding isdeleted, mode=twoway}" >                 <i:interaction.triggers>                     <i:eventtrigger eventname="checked">                         <cmd:eventtocommand command="{binding diagramchecked}" />                     </i:eventtrigger>                 </i:interaction.triggers>             </checkbox>         </datatemplate>     </telerik:gridviewdatacolumn.celltemplate>                    </telerik:gridviewdatacolumn>

trigger seems fine. presumably, diagramchecked in datacontext context checkbox binding (where isdeleted placed). check if output window reports errors.
assumtpion is refering wrong datacontext. try bind datacontext of root element in datacontext diagramchecked command placed.

 <cmd:eventtocommand command="{binding relativesource={relativesource ancestortype=sometype},path=datacontext. diagramchecked}" />

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