c# - using System.Windows; is not a name space -


i guess pretty basic mistake @ should ashamed off, dont see it. checked braces , correct. im thankfull help.

using system; using system.io; using system.xml; using system.windows; using system.windows.markup; using system.windows.controls;  namespace ampelthingy {     public class load            {      void loading() {     streamreader sr = new streamreader(@"aa.xaml");     string text = sr.readtoend();     sr.close();      stringreader stringreader = new stringreader(text);     xmlreader xmlreader = xmlreader.create(stringreader);      wrappanel wp = (wrappanel)system.windows.markup.xamlreader.load(xmlreader);      ((mainwindow)system.windows.application.current.mainwindow).sp2.children.clear(); // clear existing children      foreach (frameworkelement child in wp.children) // , each child in wrappanel loaded (wp)     {         ((mainwindow)system.windows.application.current.mainwindow).sp2.children.add(cloneframeworkelement(child)); // clone child , add our existing wrap panel     }            }  /// <summary> /// clone framework element serializing , deserializing /// </summary> /// <param name="originalelement"></param> /// <returns></returns> frameworkelement cloneframeworkelement(frameworkelement originalelement) {     string elementstring = xamlwriter.save(originalelement);      stringreader stringreader = new stringreader(elementstring);     xmlreader xmlreader = xmlreader.create(stringreader);     frameworkelement clonedelement = (frameworkelement)xamlreader.load(xmlreader);      return clonedelement; }     } }

make sure have referenced system.windows, windowsbase, system.xaml, presentationframework , presentationcore in project.

to add these, right click project (not solution), , go add -> reference. alternatively, can expand "references" item in project see assemblies referenced, , right clicking references add works too.


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