Icona Bind seconda Enum in WPF TreeView

Question

ho a treeview TextBox, e voglio convertire il mio Enum:

<TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=AcceptationStatusGlobalFlag}" /> 

public enum AcceptationStatusGlobalFlag 
    { 
     NotReady = 0, 
     Ready = 1, 
     AcceptedByAdmin=2 
    } 

a icone. Ci saranno 3 icone, diciamo ready.jpg, notready.jpg e AcceptedByAdmin.jpg

Paese e regione ha piscina AcceptationStatusGlobalFlag e sia io che vuoi visualizzare questo enum/Icona

  <TreeView Name="structureTree" SelectedItemChanged="structureTree_SelectedItemChanged" Grid.Row="0" Grid.Column="0" ItemsSource="{Binding}" Height="413" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Visible" Width="Auto" PreviewMouseRightButtonUp="structureTree_PreviewMouseRightButtonUp" FontFamily="Verdana" FontSize="12"> 
       <TreeView.Resources> 
        <HierarchicalDataTemplate DataType="{x:Type ServiceMy:Country}" 
           ItemsSource="{Binding Path=ListOfRegions}"> 
         <StackPanel Orientation="Horizontal"> 
          <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text=" H:"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=NumberOfHotels}"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text=" "/> 
          <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text=" FG:"/> 
          <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=AcceptationStatusGlobalFlag}" /> 
       <!--<Button Name="BTNAddRegion" Height="20" Content="+" Click="BTNAddRegion_Click"></Button>--> 
      </StackPanel> 
        </HierarchicalDataTemplate> 
        <HierarchicalDataTemplate DataType="{x:Type ServiceMy:Region}" 
           ItemsSource="{Binding Path=ListOfProvinces}"> 
         <StackPanel Orientation="Horizontal"> 
          <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text=" H:"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=NumberOfHotels}"/> 
       <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text=" "/> 
       <!--<Button Name="BTNAddProvince" Height="20" Content="+" Click="BTNAddProvince_Click"></Button>--> 
      </StackPanel> 


        </DataTemplate> 

       </TreeView.Resources> 
      </TreeView> 
     </GroupBox> 

    </StackPanel> 
</Grid> 

Answer 1

Creare un Value Converter

Prende il tuo valore enum e restituisce il nome del file l'icona appropriata.

[ValueConversion(typeof(AcceptationStatusGlobalFlag), typeof(string))] 
public class AcceptationStatusGlobalFlagToIconFilenameConverter : IValueConverter 
{ 
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) 
    { 
     switch ((AcceptationStatusGlobalFlag)value) 
     { 
      case AcceptationStatusGlobalFlag.Ready: 
       return "ready.jpg"; 
      case AcceptationStatusGlobalFlag.NotReady: 
       return "notready.jpg"; 
      case AcceptationStatusGlobalFlag.AcceptedByAdmin: 
       return "AcceptedByAdmin.jpg"; 
      default: 
       return null; 
     } 

     // or 
     return Enum.GetName(typeof(AcceptationStatusGlobalFlag), value) + ".jpg"; 
    } 

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) 
    { 
     throw new NotSupportedException(); 
    } 
} 

Sarà necessario aggiungere un riferimento a questo convertitore nel vostro XAML

<Window ... xmlns:converters="clr-namespace:App.Converters" ...> 
    <Window.Resources> 
     <converters:AcceptationStatusGlobalFlagToIconFilenameConverter x:Key="IconConverter"/> 
    </Window.Resources> 

Sostituire il TextBlock

<TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=AcceptationStatusGlobalFlag}" /> 

con un'immagine e dire è possibile utilizzare un convertitore

<Image Source="{Binding AcceptationStatusGlobalFlag, Converter={StaticResource IconConverter}}"/> 

Answer 2

La soluzione più semplice per questo, è quello di utilizzare un convertitore valore; quindi crea un'implementazione IValueConverter che converte le tue enumerazioni nelle immagini corrispondenti.

Per ulteriori informazioni si veda: http://msdn.microsoft.com/en-us/library/system.windows.data.ivalueconverter.aspx

Answer 3

si dovrebbe usare vincolante con convertitore di valori: http://blogs.msdn.com/bencon/archive/2006/05/10/594886.aspx