private void OnSaveState(object sender, WindowClosedEventArgs e)
 {
     if (e.DialogResult == true)
     {
         LocalDataSourceSerializer provider = new LocalDataSourceSerializer();
         this.lastSerializadProvider = provider.Serialize(this.pivotGrid.DataProvider);
         this.EnsureLoadState();
     }
 }
 private void OnSave(object sender, System.Windows.RoutedEventArgs e)
 {
     LocalDataSourceSerializer provider = new LocalDataSourceSerializer();
     this.lastSerializadProvider = provider.Serialize(this.pivotGrid.DataProvider);
     this.EnsureLoadState();
 }