c# - ViewModel does not exist.Simple MVVM WPF application -

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hi im learing mvvm pattern wpf use in application. im not able bind anything, cause xaml code says "the name 'name' not exist in namespace 'namespace'".

my xaml code: 

<window x:class="mvvm.mainwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:local="clr-namespace:mvvm.viewmodel"     title="mainwindow" height="350" width="525">     <window.datacontext>         <local:mainviewmodel/>     </window.datacontext>     <!--<window.resources>         <local:mainviewmodel x:key="viewmodel"/>     </window.resources>-->     <grid>         <button width="100" height="100" content="binding buttoncontent"/>     </grid> </window>

and have added mainviewmodel.cs. here code. 

using system; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks;  namespace mvvm.viewmodel {     public class mainviewmodel     {         public string buttoncontent         {                         {                 return "click me";             }         }     } }

im not able find proper solution. can me this?


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