private static RouteValueDictionary GetRouteValuesFromExpression <TController>(Expression <Action <TController> > action) where TController : Controller
{
if (action == null)
{
throw new ArgumentNullException("action");
}
MethodCallExpression call = action.Body as MethodCallExpression;
string controllerName = typeof(TController).Name;
controllerName = controllerName.Substring(0, controllerName.Length - "Controller".Length);
string actionName = GetTargetActionName(call.Method);
var rvd = new RouteValueDictionary();
rvd.Add("Controller", controllerName);
rvd.Add("Action", actionName);
ActionLinkAreaAttribute areaAttr = typeof(TController).GetCustomAttributes(typeof(ActionLinkAreaAttribute), true /* inherit */).FirstOrDefault() as ActionLinkAreaAttribute;
if (areaAttr != null)
{
string areaName = areaAttr.Area;
rvd.Add("Area", areaName);
}
AddParameterValuesFromExpressionToDictionary(rvd, call);
return(rvd);
}
public static RouteValueDictionary GetRouteValuesFromExpression <TController>(Expression <Action <TController> > action) where TController : Controller
{
if (action == null)
{
throw new ArgumentNullException("action");
}
MethodCallExpression call = action.Body as MethodCallExpression;
if (call == null)
{
throw new ArgumentException(MvcResources.ExpressionHelper_MustBeMethodCall, "action");
}
string controllerName = typeof(TController).Name;
if (!controllerName.EndsWith("Controller", StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException(MvcResources.ExpressionHelper_TargetMustEndInController, "action");
}
controllerName = controllerName.Substring(0, controllerName.Length - "Controller".Length);
if (controllerName.Length == 0)
{
throw new ArgumentException(MvcResources.ExpressionHelper_CannotRouteToController, "action");
}
// TODO: How do we know that this method is even web callable?
// For now, we just let the call itself throw an exception.
string actionName = GetTargetActionName(call.Method);
var rvd = new RouteValueDictionary();
rvd.Add("Controller", controllerName);
rvd.Add("Action", actionName);
ActionLinkAreaAttribute areaAttr = typeof(TController).GetCustomAttributes(typeof(ActionLinkAreaAttribute), true /* inherit */).FirstOrDefault() as ActionLinkAreaAttribute;
if (areaAttr != null)
{
string areaName = areaAttr.Area;
rvd.Add("Area", areaName);
}
AddParameterValuesFromExpressionToDictionary(rvd, call);
return(rvd);
}
private static void AddControllerInfoToDictionary(RouteValueDictionary rvd, MethodCallExpression call, string controllerName, Type controllerType)
{
// TODO: How do we know that this method is even web callable?
// For now, we just let the call itself throw an exception.
string actionName = GetTargetActionName(call.Method);
rvd.Add("Controller", controllerName);
rvd.Add("Action", actionName);
ActionLinkAreaAttribute areaAttr = controllerType.GetCustomAttributes(typeof(ActionLinkAreaAttribute), true /* inherit */).FirstOrDefault() as ActionLinkAreaAttribute;
if (areaAttr != null)
{
string areaName = areaAttr.Area;
rvd.Add("Area", areaName);
}
}
