c# - RibbonGallery items Command Click -

using wpf mvvm'ish style. trying create ribbongallery items clickable reason cannot items launch delegate command

xaml code:

<ribbonmenubutton largeimagesource="images/deleteuser1.png" label="delete">                     <ribbongallery>                         <ribbongallerycategory itemssource="{binding availibleusers}" header="user list">                             <ribbongallerycategory.itemtemplate>                                 <datatemplate>                                     <grid>                                         <grid.columndefinitions>                                             <columndefinition width="auto" />                                             <columndefinition width="*" />                                         </grid.columndefinitions>                                         <image source="images/deleteuser1.png" width="25"/>                                         <contentpresenter content="{binding}" grid.column="1">                                             <contentpresenter.inputbindings>                                                 <mousebinding mouseaction="leftclick" command="{binding commanddeleteallpermissions}"/>                                             </contentpresenter.inputbindings>                                         </contentpresenter>                                     </grid>                                 </datatemplate>                             </ribbongallerycategory.itemtemplate>                         </ribbongallerycategory>                     </ribbongallery>                 </ribbonmenubutton> 

the datacontext has been set view model. viewmodel:

    public delegatecommand commanddeleteallpermissions { { return new delegatecommand(delegated_deleteallpermissions); } }      private void delegated_deleteallpermissions(object obj)     {           \\todo:stuff     } 

i have tested command using standard button , triggers, using specific xaml code cannot clickable items in ribbongallery control.

any ideas?

galleries sort of categorized lists, items can checked. suitable, when need options menu, user should check/uncheck items:

this xaml data-bound gallery , sample view model:

            <ribbonmenubutton label="foogallery">                 <ribbongallery>                     <ribbongallerycategory itemssource="{binding galleryitems}">                         <ribbongallerycategory.itemcontainerstyle>                             <style targettype="{x:type ribbongalleryitem}">                                 <setter property="content" value="{binding content}"/>                                 <setter property="isselected" value="{binding isselected}"/>                             </style>                         </ribbongallerycategory.itemcontainerstyle>                     </ribbongallerycategory>                 </ribbongallery>             </ribbonmenubutton> 

here galleryitems collection of these view models:

public class galleryitem {     public object content { get; set; }      public bool isselected      {         { return isselected; }         set         {             if (isselected != value)             {                 isselected = value;                  // todo: here, when item becomes selected/checked;                  // handle property changing instead of commands              }         }     }      private bool isselected; } 

if need dropdown menu execute commands, should use regular ribbonmenuitems:

this how should done, when menu items statically known:

            <ribbonmenubutton label="foo">                 <ribbonmenuitem header="bar1" command="{binding bar1command}"/>                 <ribbonmenuitem header="bar2" command="{binding bar2command}"/>                 <ribbonmenuitem header="bar3" command="{binding bar3command}"/>             </ribbonmenubutton> 

when using itemssource menu items, xaml this:

            <ribbonmenubutton label="foo" itemssource="{binding menuitems}">                 <ribbonmenubutton.itemcontainerstyle>                     <style targettype="{x:type ribbonmenuitem}">                         <setter property="header" value="{binding header}"/>                         <setter property="command" value="{binding command}"/>                     </style>                 </ribbonmenubutton.itemcontainerstyle>             </ribbonmenubutton> 

where menuitems collection of these view models:

public class menuitemvm {     public object header { get; set; }     public icommand command { get; set; } }