private static Type LookupAncestorType(string ancestorTypeName, ITypeDescriptorContext context)
{
var parts = ancestorTypeName.Split(':');
if (parts.Length == 0 || parts.Length > 2)
{
throw new InvalidOperationException("Invalid type name");
}
if (parts.Length == 1)
{
return(context.ResolveType(string.Empty, parts[0]));
}
else
{
return(context.ResolveType(parts[0], parts[1]));
}
}
private Type TryResolveOwnerByName(ITypeDescriptorContext context, string ns, string owner)
{
if (owner != null)
{
var result = context.ResolveType(ns, owner);
if (result == null)
{
var name = string.IsNullOrEmpty(ns) ? owner : $"{ns}:{owner}";
throw new XamlLoadException($"Could not find type '{name}'.");
}
return(result);
}
return(null);
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
var parser = new SelectorParser((t, ns) => context.ResolveType(ns, t));
return(parser.Parse((string)value));
}