c# - Prism PopupChildWindowAction in Desktop DLL missing -

i trying implement modal dialog in wpf prism desktop application.

from prism guidance can see proper way should using interaction:

<i:interaction.triggers>     <prism:interactionrequesttrigger              sourceobject="{binding confirmcancelinteractionrequest}">          <prism:popupchildwindowaction                   contenttemplate="{staticresource confirmwindowtemplate}"/>      </prism:interactionrequesttrigger> </i:interaction.triggers> 

but popupchildwindowaction not available in microsoft.practices.prism.interactivity.dll library desktop, silverlight?

i google many different implementations of modal dialog in wpf (prism), wondering why feature missing prism desktop dll , available in silverlight dll? use interaction service interaction request suggested more appropriate approach mvvm application.

that's true exists in silverlight prism library ,

what can create own .

cs :

public class openpopupwindowaction : triggeraction<frameworkelement> {          protected override void invoke(object parameter)     {                    var popup = (childwindow)servicelocator.current.getinstance<ipopupdialogwindow>();         popup.owner = placementtarget ?? (window)servicelocator.current.getinstance<ishell>();          popup.dialogresultcommand = popupdailogresultcommand;         popup.show();                           }      public window placementtarget     {         { return (window)getvalue(placementtargetproperty); }         set { setvalue(placementtargetproperty, value); }     }             public static readonly dependencyproperty placementtargetproperty =         dependencyproperty.register("placementtarget", typeof(window), typeof(openpopupwindowaction), new propertymetadata(null));       public icommand popupdailogresultcommand         {         { return (icommand)getvalue(popupdailogresultcommandproperty); }         set { setvalue(popupdailogresultcommandproperty, value); }     }      public static readonly dependencyproperty popupdailogresultcommandproperty =         dependencyproperty.register("popupdailogresultcommand", typeof(icommand), typeof(openpopupwindowaction), new propertymetadata(null));         } 

xaml :

    <i:eventtrigger sourceobject="{binding}" eventname="navigatedfrom">          <popup:openpopupwindowaction  popupdailogresultcommand="{binding onnavigationconfirmed}"/>     </i:eventtrigger> 

and if need here code dialogwindow self .

cs:

public partial class childwindow : window, ipopupdialogwindow {     public childwindow()     {         initializecomponent();         datacontext = this;     }      public new popupdialogresult dialogresult     {         get;         set;     }      public system.windows.input.icommand dialogresultcommand     {         get;         set;     } } 

xaml :

  <window x:class="utils.actionpopupwindow.childwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" height="300" width="400" windowstartuplocation="centerowner"     xmlns:popup="clr-namespace:utils.actionpopupwindow"     xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"      xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"     x:name="popupwindow"     >  <grid>     <grid.rowdefinitions>         <rowdefinition height="*"/>         <rowdefinition height="30"/>     </grid.rowdefinitions>     <textblock verticalalignment="center" horizontalalignment="center" fontsize="30">         child window <linebreak/> launched <linebreak/>main window     </textblock>     <stackpanel grid.row="1" background="#ffa6a6a6">         <stackpanel orientation="horizontal" horizontalalignment="right">              <button content="ok"                      minwidth="100"                      command="{binding dialogresultcommand}"                      commandparameter="{x:static popup:popupdialogresult.ok}"                     >                  <i:interaction.triggers>                       <i:eventtrigger eventname="click">                          <ei:callmethodaction methodname="close" targetobject="{binding elementname=popupwindow}"/>                        </i:eventtrigger>                   </i:interaction.triggers>             </button>              <button content="cancel"                      minwidth="100"                     command="{binding dialogresultcommand}"                      commandparameter="{x:static popup:popupdialogresult.cancel}"                     >                 <i:interaction.triggers>                     <i:eventtrigger eventname="click">                         <ei:callmethodaction methodname="close" targetobject="{binding elementname=popupwindow}"/>                     </i:eventtrigger>                 </i:interaction.triggers>             </button>                    </stackpanel>                  </stackpanel>  </grid>