wpf - Binding datacontext viewmodel to usercontrol view when using Mvvm -

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i need binding viewmodel 2 usercontrol views have created.

have created reservation window should contain these 2 usercontrols.

what got:

  • reservationview (window)
  • reservationlistview (usercontrol)
  • reservationdetailview (usercontrol)

reservationview (window) class

public partial class reservationview : window {     public reservationview()     {         initializecomponent();         //datacontext = null;                   } }

reservationlistview (usercontrol) class:

public partial class reservationlistview : usercontrol, iviewreservationlistviewmodel {     public reservationlistview(iviewreservationlistviewmodel viewmodel)     {         initializecomponent();         datacontext = viewmodel;     } }

the iviewreservationlistviewmodel empty interface makes contact between usercontrol view , viewmodel.

reservationlistviewmodel

public class reservationlistviewmodel : inotifypropertychanged, iviewreservationlistviewmodel {     public reservationlistviewmodel()     {      } }

when try set local:"usercontrol" in xaml inside reservationview, following error: 

the type "reservationlistview" not include accessible constructors.

how should link 2 usercontrol respective viewmodels when use mvvm?

you have mainviewmodel like

class mainviewmodel {     public reservationlistviewmodel reservationlistviewmodel { get; set; }     public reservationdetailviewmodel reservationdetailviewmodel { get; set; } }

and use in xaml like

<window.datacontext>     <local:mainviewmodel/> </window.datacontext>  <local:reservationlistview datacontext="{binding reservationlistviewmodel}"/>  <local:reservationdetailview datacontext="{binding reservationdetailviewmodel}"/>

your usercontrols wouldn't need constructors parameters.


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