WPF

namespace AnagramsWPF
{

    public class WordItem
    {
        public string Text  {  get; set; } 
        public bool Used { get; set; }

        public WordItem(string text)
        {
            Text      = text;
            Used      = false;
        }

	public override string ToString()
        {
            return Text;
        }
    }


    public class WordTypeTemplateSelector : DataTemplateSelector
    {
        public DataTemplate UnusedWordTemplate { get; set; }
        public DataTemplate UsedWordTemplate { get; set; }

        public override DataTemplate SelectTemplate(object item, DependencyObject container)
        {
            WordItem wordItem = item as WordItem;
            DataTemplate template = null;
            if (wordItem.Used)
            {
                template = UsedWordTemplate;
            }
            else
            {
                template = UnusedWordTemplate;
            }
            return template;
        }
    }
}

<Window.Resources>
    <DataTemplate x:Key="unusedWord">
        <Grid>
            <TextBlock Text="{Binding Path=Text}" Foreground="DarkGray" />
        </Grid>
    </DataTemplate>
    <DataTemplate x:Key="usedWord">
        <Grid>
            <TextBlock Text="{Binding Path=Texe}" Foreground="Red" FontStyle="Italic" />
        </Grid>
    </DataTemplate>
    <local:WordTypeTemplateSelector
        x:Key="wordTypeTemplateSelector"
        UsedWordTemplate="{StaticResource usedwordTemplate}"
        UnusedWordTemplate="{StaticResource unusedwordTemplate}" />
</Window.Resources>

xmlns:local="clr-namespace:AnagramsWPF"

mildred-frontfree wrote:

It seems that RoutedEvent is quite similar with event.

<br />
public class MyButtonSimple: Button<br />
{<br />
    // Create a custom routed event by first registering a RoutedEventID<br />
    // This event uses the bubbling routing strategy<br />
    public static readonly RoutedEvent TapEvent = EventManager.RegisterRoutedEvent(<br />
        "Tap", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(MyButtonSimple));<br />
<br />
    // Provide CLR accessors for the event<br />
    public event RoutedEventHandler Tap<br />
    {<br />
            add { AddHandler(TapEvent, value); } <br />
            remove { RemoveHandler(TapEvent, value); }<br />
    }<br />
<br />
    // This method raises the Tap event<br />
    void RaiseTapEvent()<br />
    {<br />
            RoutedEventArgs newEventArgs = new RoutedEventArgs(MyButtonSimple.TapEvent);<br />
            RaiseEvent(newEventArgs);<br />
    }<br />
    // For demonstration purposes we raise the event when the MyButtonSimple is clicked<br />
    protected override void OnClick()<br />
    {<br />
        RaiseTapEvent();<br />
    }<br />
<br />
}<br />
<br />
<br />

<br />
public delegate void DelegateClickEventHandler();<br />
public event DelegateClickEventHandler DelegateClickEvent;<br />
<br />
protected ovveride void OnClick()<br />
{<br />
   if(DelegateClickEvent!=null)<br />
   {<br />
       DelegateClickEvent();<br />
   }<br />
}<br />

ABitSmart wrote:

That was nicely explained

ABitSmart wrote:

That example on MSDN is pathetic and is more misleading than helping.