/// <summary>
/// Searchs for a appropriate control for a given controller with restriction to a given type.
/// The control is not (!) attached to the controller. You have to do this manually.
/// </summary>
/// <param name="controller">The controller a control is searched for.</param>
/// <param name="expectedType">The expected type of the control.</param>
/// <returns>The control with the type provided as expectedType argument, or null if no such controller was found.</returns>
/// <remarks>This function is used externally, so we add the restriction here that the expected type
/// has to be a System.Windows.Forms.Control.</remarks>
public object FindAndAttachControlTo(IMVCController controller, System.Type expectedType)
{
return(ReflectionService.GetClassForClassInstanceByAttribute(
typeof(UserControlForControllerAttribute),
new Type[] { typeof(System.Windows.Forms.Control), expectedType },
new object[] { controller }));
}
private static void CreateControlForControllerWithNoExpectedTypeOfViewAttribute(IMVCController controller, System.Type guiControlType)
{
object control =
ReflectionService.GetClassForClassInstanceByAttribute(
typeof(UserControlForControllerAttribute),
new System.Type[] { guiControlType },
new object[] { controller });
if (null != control)
{
controller.ViewObject = control;
}
}
/// <summary>
/// Searchs for a appropriate control for a given controller with restriction to a given type.
/// The control is not (!) attached to the controller. You have to do this manually.
/// </summary>
/// <param name="controller">The controller a control is searched for.</param>
/// <param name="expectedType">The expected type of the control.</param>
/// <returns>The control with the type provided as expectedType argument, or null if no such controller was found.</returns>
public object FindAndAttachControlTo(IMVCController controller, System.Type expectedType)
{
object result = null;
foreach (var guiControlType in RegisteredGuiTechnologies)
{
result = ReflectionService.GetClassForClassInstanceByAttribute(
typeof(UserControlForControllerAttribute),
new Type[] { guiControlType, expectedType },
new object[] { controller });
if (null != result)
{
break;
}
}
return(result);
}
/// <summary>
/// Searchs for a appropriate control for a given controller and attaches the control to the controller.
/// </summary>
/// <param name="controller">The controller a control is searched for.</param>
public void FindAndAttachControlTo(IMVCController controller)
{
// if the controller has
System.Type ct = controller.GetType();
object[] viewattributes = ct.GetCustomAttributes(typeof(ExpectedTypeOfViewAttribute), false);
if (viewattributes != null && viewattributes.Length > 0)
{
if (viewattributes.Length > 1)
{
Array.Sort(viewattributes);
}
foreach (ExpectedTypeOfViewAttribute attr in viewattributes)
{
Type[] controltypes = ReflectionService.GetNonAbstractSubclassesOf(new System.Type[] { typeof(System.Windows.Forms.Control), attr.TargetType });
foreach (Type controltype in controltypes)
{
// test if the control has a special preference for a controller...
object[] controlForAttributes = controltype.GetCustomAttributes(typeof(UserControlForControllerAttribute), false);
if (controlForAttributes.Length > 0)
{
bool containsControllerType = false;
foreach (UserControlForControllerAttribute controlForAttr in controlForAttributes)
{
if (ReflectionService.IsSubClassOfOrImplements(ct, controlForAttr.TargetType))
{
containsControllerType = true;
break;
}
}
if (!containsControllerType)
{
continue; // then this view is not intended for our controller
}
}
// all seems ok, so we can try to create the control
object controlinstance = System.Activator.CreateInstance(controltype);
if (null == controlinstance)
{
throw new ApplicationException(string.Format("Searching a control for controller of type {0}. Find control type {1}, but it was not possible to create a instance of this type.", ct, controltype));
}
controller.ViewObject = controlinstance;
if (controller.ViewObject == null)
{
throw new ApplicationException(string.Format("Searching a control for controller of type {0}. Find control type {1}, but the controller did not accept this control.", ct, controltype));
}
return;
}
}
}
else // Controller has no ExpectedTypeOfView attribute
{
System.Windows.Forms.UserControl control =
(System.Windows.Forms.UserControl)ReflectionService.GetClassForClassInstanceByAttribute(
typeof(UserControlForControllerAttribute),
new System.Type[] { typeof(System.Windows.Forms.UserControl) },
new object[] { controller });
if (control == null)
{
return;
}
controller.ViewObject = control;
}
}
