internal void OnContentChanged(AbstractProperty prop, object oldValue)
{
object content = Content;
MPF.TryCleanupAndDispose(oldValue);
if (!ReferenceEquals(oldValue, _convertedContent))
{
MPF.TryCleanupAndDispose(_convertedContent);
}
object convertedContent;
// Try to unwrap ResourceWrapper before _convertedContent is accessed elsewhere.
// That's the only function we need from the ConvertType method, that's why we only call MPF.ConvertType
// instead of TypeConverter.Convert.
if (!MPF.ConvertType(content, typeof(object), out convertedContent))
{
convertedContent = content;
}
_convertedContent = ReferenceEquals(content, convertedContent) ? MpfCopyManager.DeepCopySetLVPs(convertedContent, this, this) : convertedContent;
if (ContentTemplate == null)
{
// No ContentTemplate set
InstallAutomaticContentDataTemplate();
}
FrameworkElement templateControl = _templateControl;
if (!(_convertedContent is FrameworkElement) && templateControl != null) // If our content is a FrameworkElement itself, it should only be used as template control but not as context
// The controls in the DataTemplate access their "data" via their data context, so we must assign it
{
templateControl.Context = _convertedContent;
}
}
