protected override Type LocateViewForModel(Type modelType)
{
if (_viewModelToViewMapping.ContainsKey(modelType))
{
return(_viewModelToViewMapping[modelType]);
}
if (!typeof(Node).IsAssignableFrom(modelType))
{
throw new ViewNotFoundException(modelType.FullName);
}
var viewModelName = modelType.Name;
var viewName = viewModelName.Substring(0, viewModelName.Length - 5);
var assembly = Assembly.GetAssembly(modelType);
if (!ViewAssemblies.Contains(assembly))
{
ViewAssemblies.Add(assembly);
}
var viewType = assembly.ExportedTypes.First(t => t.Name == viewName);
_viewModelToViewMapping.Add(modelType, viewType);
return(viewType);
}
public SampleViewManager(ViewManagerConfig config) : base(config)
{
var mappings = from type in ViewAssemblies.SelectMany(x => x.GetExportedTypes())
let attribute = type.GetCustomAttribute <ViewModelAttribute>()
where attribute != null && typeof(UIElement).IsAssignableFrom(type)
select new { View = type, ViewModel = attribute.ViewModel };
viewModelToViewMapping = mappings.ToDictionary(x => x.ViewModel, x => x.View);
}
private void AddTypesAssemblyToListOfPossibleViewAssemblies(Type type)
{
var assembly = Assembly.GetAssembly(type);
if (!ViewAssemblies.Contains(assembly))
{
ViewAssemblies.Add(assembly);
}
}
private Type FindViewTypeFromViewAssemblies(Type modelType)
{
AddTypesAssemblyToListOfPossibleViewAssemblies(modelType);
var viewModelName = modelType.Name;
var viewName = GuessViewName(viewModelName);
var viewType = ViewAssemblies
.SelectMany(a => a.ExportedTypes)
.FirstOrDefault(t => t.Name == viewName)
?? typeof(MissingView);
return(viewType);
}
/// <summary>
/// Given the expected name for a view, locate its type (or return null if a suitable type couldn't be found)
/// </summary>
/// <param name="viewName">View name to locate the type for</param>
/// <param name="extraAssemblies">Extra assemblies to search through</param>
/// <returns>Type for that view name</returns>
protected virtual Type ViewTypeForViewName(string viewName, IEnumerable <Assembly> extraAssemblies)
{
return(ViewAssemblies.Concat(extraAssemblies).Select(x => x.GetType(viewName)).FirstOrDefault(x => x != null));
}
