Icons

The RadMenu allows you to display an icon for each of the menu items. This can be done by setting the Icon property of the RadMenuItem. For the icon to be displayed as expected, you have to either provide an element of type Image for it or also set the IconTemplate property of the item.

Setting the Icon of a Static Item

To learn more about this way of populating the RadMenu with static data take a look at the Using Static Items topic.

When using static items you can directly access the Icon property of each item. Respectively you can set it directly:

Example 1: Setting the Icon property declaratively

• XAML

<telerik:RadMenuItem Header="New File"> 
    <telerik:RadMenuItem.Icon> 
        <Image Source="/Images/newFile.png"  
               Stretch="UniformToFill" /> 
    </telerik:RadMenuItem.Icon> 
</telerik:RadMenuItem> 

Figure 1 illustrates the resulting items.

Figure 1: RadMenuItems with their Icon property set

Setting the Icon of a Dynamic Item

To learn more about this way of populating the RadMenu with dynamic data take a look at the Binding to Dynamic Data topic.

When using dynamic items, you have to bind the Icon property to a property of the data item. The specific here is that your data item needs to either expose a property of type Image, so the Icon property can be bound properly or you need to define the IconTemplate property of the menu items if you wish to bind it to a string or Uri, for example.

Let's assume you've defined the following class which exposes the icon Uri as well as a read-only property which returns an image from this Uri.

Example 2: MenuItem class with Uri and Image properties

• C#
• VB.NET

public class MenuItem 
{ 
    //... 
 
    public Uri IconUrl 
    { 
        get; 
        set; 
    } 
 
    public Image Icon 
    { 
        get 
        { 
            return new Image() 
            { 
                Source = new BitmapImage(this.IconUrl) 
            }; 
        } 
    } 
 
    //... 
} 

Public Class MenuItem 
    '... 
    Public Property IconUrl() As Uri 
        Get 
        End Get 
        Set(value As Uri) 
        End Set 
    End Property 
    Public ReadOnly Property Icon() As Image 
        Get 
            Dim img As New Image() 
            img.Source = New BitmapImage(Me.IconUrl) 
            Return img 
        End Get 
    End Property 
    '... 
End Class 

You can then bind the Icon using any of the two properties. Following the example from the Binding to Dynamic Data article, you can add the following setters to ItemContainerStyle.

• If you wish to bind directly to a property of type Image:

  Example 2: Setting the Icon property to an Image

  • XAML

      <!-- If you are using the NoXaml binaries, you will have to base the style on the default one for the theme like so:  
      <Style TargetType="telerik:RadMenuItem" BasedOn="{StaticResource RadMenuItemStyle}">-->  
   
      <Style x:Key="MenuItemStyle" TargetType="telerik:RadMenuItem"> 
          <!-- ... --> 
          <Setter Property="Icon" Value="{Binding Icon}" /> 
      </Style> 

• If you wish to bind directly to a property of type Uri/string:

  Example 3: Setting the Icon property to an Uri/string

  • XAML

      <!-- If you are using the NoXaml binaries, you will have to base the style on the default one for the theme like so:  
      <Style TargetType="telerik:RadMenuItem" BasedOn="{StaticResource RadMenuItemStyle}">-->  
   
      <Style x:Key="MenuItemStyle" TargetType="telerik:RadMenuItem"> 
          <!-- ... --> 
          <Setter Property="Icon" Value="{Binding IconUrl}" /> 
          <Setter Property="IconTemplate" > 
              <Setter.Value> 
                  <DataTemplate> 
                      <Image Source="{Binding}" Stretch="UniformToFill"/> 
                  </DataTemplate> 
              </Setter.Value> 
          </Setter> 
      </Style> 

Both approaches will lead to the same results as when you set the icon declaratively.

Figure 2: Dynamic RadMenuItems with their icons