c# - Use user selected image as canvas background -

deleted old question make more specific one. using code http://www.c-sharpcorner.com/uploadfile/mahesh/image-viewer-in-wpf/ basis. lets user browse image file open , display. want display image , let user make marks on it. decided want use canvas this. right now, can't figure out how user selected image background. i'm getting error says "system.windows.shapes.path not contain definition 'background' , no extension method 'background' accepting first argument of type 'system.windows.shapes.path' found..." line says 'canvas1.background = brush;". i've looked ways set background of canvas, involving using xaml code, other errors.

xaml:

<window x:class="canvasstuff.mainwindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         title="main window" height="409" width="574">     <grid >         <label content="image" height="32" horizontalalignment="left" margin="11,10,0,0"                name="selectedfilename" verticalalignment="top" width="393"                background="lightgray" borderbrush="gray" borderthickness="1"/>         <button content="browse file" height="34" horizontalalignment="left" margin="410,8,0,0"                 name="browsebutton" verticalalignment="top" width="119"                 foreground="maroon" fontsize="16" fontfamily="georgia" click="browsebutton_click" />         <canvas>             <path canvas.left="61" canvas.top="28" width="133" height="98" fill="blue"              stretch="fill" data="m61,125 l193,28" name="canvas1"/>         </canvas>     </grid> </window> 

code behind:

namespace canvasstuff {     public partial class mainwindow     {         public mainwindow()         {             initializecomponent();         }         private void browsebutton_click(object sender, routedeventargs e)         {             openfiledialog dlg = new openfiledialog();             dlg.initialdirectory = "c:\\";             dlg.filter = "image files (*.jpg)|*.jpg|all files (*.*)|*.*";             dlg.restoredirectory = true;              if (dlg.showdialog() == system.windows.forms.dialogresult.ok)             {                 string selectedfilename = dlg.filename;                 imagebrush brush = new imagebrush();                 brush.imagesource = new bitmapimage(new uri(selectedfilename, urikind.relative));                 canvas1.background = brush; #error here                 bitmapimage bitmap = new bitmapimage();             }          }     } } 

the "canvas1" element path, therefore has fill property rather background property, replace canvas1.background canvas1.fill. not give background path has small size. want window have background can using encompassing border.

<window x:class="canvasstuff.mainwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     title="main window" height="409" width="574"> <border x:name="bgborder" borderthickness="0">     <!-- insert current content here --> </border> </window> 

then replace

canvas1.background = brush; 

with

bgborder.background = brush;