DevComponents Knowledge Base

The WPF DataTemplate has a DataType property. What this enables is a matching of Clr object Type to a specific DataTemplate to be applied when that object type is used as content for a ContentControl or ItemsControl. This is very handy especially in MVVM scenarios. In DotNetBar for Silverlight we have implemented a feature which [...]

With version 4.0 certain Silverlight controls have a Command property that is of type ICommand. There is, however, still a huge gap between the Silverlight and WPF commanding infrastructure. DotNetBar for Silverlight attempts to close that gap at least a little with the CommandManager and the RelayCommand. DevComponents.Silverlight.Controls.CommandManager is essentially a scaled down version of [...]

Silverlight Schedule control provides Outlook style scheduling functionality for your Silverlight applications. Schedule control is built on Model/View paradigm. The model represents the actual schedule, i.e. appointments and recurrence. The model objects can be found in the DevComponents.Silverlight.Schedule.Model namespace. The model used in the Silverlight version of Schedule is the same as the model used [...]

DotNetBar for Silverlight come pre-loaded with a collection of color themes. A color theme is essentially a collection of brush resources. Any brush used by any element in any given DotNetBar for Silverlight control, if it is to be part of the color theme, is a resource defined by the color theme, having a pre-determined [...]

One of the very useful constructs that is found in Wpf but not in Silverlight is the DynamicResource. In Wpf, when you want a resource such as a brush to be dynamically updatable at runtime, you use DynamicResource where otherwise you would use StaticResource. We have created a way to simulate the functionality of Wpf’s [...]

Although Silverlight has support internally for routed events it does not provide a means for developers to create their own. To fill this gap DevComponents has implemented a light weight version of the routed event which is modeled on the Silverlight/Wpf versions and behaves the same. Routed events are implemented in the DevComponents.Silverlight.Controls.Eventing namespace defined [...]

With version 4.0 Silverlight has mouse right button up and down events but still no ContextMenu control. DevComponents.Silverlight.Controls.ContextMenu fills this gap. ContextMenu is an ItemsHostControl. Any type which derives from UIElement can be added to its Items collection and will be displayed. The default container type generated for items which are not UIElement is MenuItem. [...]

DevComponents.Silverlight.Controls.MenuItem is the default container for the objects in the Items collections of ContextMenu, PopupMenu, Menu and MenuItem. MenuItem is an ItemsHostControl. When its Items collection is empty, a menu item functions much like a button. When the user clicks on it (specifically, left mouse button up) it raises its Click event and executes its [...]

DevComponents.Silverlight.ItemsHostControl is a control for displaying a collection of items. It inherits from System.Windows.Controls.ItemsControl. ItemsHostControl differs from ItemsControl in one key manner: by default it completely by-passes the base class’s mechanism for creating and filling the hosting panel. This allows for greater flexibility: The panel used to host the visual containers is easily accessible via [...]

DevComponents.Silverlight.Controls.NavigationPane is modeled closely on the navigation pane in Microsoft Outlook. NavigationPane currently supports 5 different color schemes: Office 2010 Blue and Silver and Office 2007 Blue, Silver and Black. NavigationPane is an ItemsHostControl. The native container for items in its Items collection is NavigationPaneItem. The items collection can be populated directly, in Xaml or [...]