Sql, Wpf, Xaml, C#, Binding data, Dynamic resource, accessing to non-static data, Obtaining a Reference to an Object -

ok, pretty pretty pretty new wpf , xaml, despite search not find simple solution , seems me won't able find answer pretty soon.

the question simple, have created wpf project , have datagrid in selectlist.xaml once row selected, save selected row in object object called "category". far ok can't figure out how going obtain reference object other place temp.xaml ?

thanks highly appreciated cheers

a common way provide indirect communication in wpf leverage mediator pattern. can use mediator publish selection of category, , have temp view subscribe notification of change in selection of category.

see http://www.eggheadcafe.com/tutorials/aspnet/ec832ac7-6e4c-4ea8-81ab-7374d3da3425/wpf-and-the-model-view-vi.aspx simple example of concrete mediator. there several popular mvvm frameworks available provide mediator pattern implementations if want more robust implementation.

simple mediator implementation:

public sealed class mediator {     private static mediator instance = new mediator();     private readonly dictionary<string, list<action<object>>> callbacks        = new dictionary<string, list<action<object>>>();      private mediator() { }      public static mediator instance     {                 {             return instance;         }     }      public void register(string id, action<object> action)     {         if (!callbacks.containskey(id))         {             callbacks[id] = new list<action<object>>();         }          callbacks[id].add(action);     }      public void unregister(string id, action<object> action)     {         callbacks[id].remove(action);          if (callbacks[id].count == 0)         {             callbacks.remove(id);         }     }      public void sendmessage(string id, object message)     {         callbacks[id].foreach(action => action(message));     } } 

selectlist.xaml code-behind:

private void datagrid_selectionchanged(object sender, system.windows.controls.selectionchangedeventargs e) {     var category = e.addeditems.firstordefault() category;      if(category != null)     {         mediator.instance.sendmessage("category selected", category);     } } 

temp.xaml code-behind:

public temp() {   initializecomponent();    mediator.instance.register   (       "category selected",       oncategoryselected   ); }  private void oncategoryselected(object parameter) {   var selectedcategory = parameter category;    if(selectedcategory != null)   {   } }