diff options
Diffstat (limited to 'Xamarin.Forms.Xaml')
| -rw-r--r-- | Xamarin.Forms.Xaml/ApplyPropertiesVisitor.cs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Xamarin.Forms.Xaml/ApplyPropertiesVisitor.cs b/Xamarin.Forms.Xaml/ApplyPropertiesVisitor.cs index 47ef9f6c..3ea1d1c5 100644 --- a/Xamarin.Forms.Xaml/ApplyPropertiesVisitor.cs +++ b/Xamarin.Forms.Xaml/ApplyPropertiesVisitor.cs @@ -121,7 +121,7 @@ namespace Xamarin.Forms.Xaml } else if (IsCollectionItem(node, parentNode) && parentNode is IElementNode) { // Collection element, implicit content, or implicit collection element. string contentProperty; - if (typeof(IEnumerable).GetTypeInfo().IsAssignableFrom(Context.Types [parentElement].GetTypeInfo())) { + if (typeof(IEnumerable).GetTypeInfo().IsAssignableFrom(Context.Types [parentElement].GetTypeInfo()) && Context.Types[parentElement].GetRuntimeMethods().Any(mi => mi.Name == "Add" && mi.GetParameters().Length == 1)) { var source = Values [parentNode]; if (!(typeof(ResourceDictionary).IsAssignableFrom(Context.Types [parentElement]))) { var addMethod = @@ -137,7 +137,8 @@ namespace Xamarin.Forms.Xaml var source = Values [parentNode]; SetPropertyValue(source, name, value, Context.RootElement, node, Context, node); - } + } else + throw new XamlParseException($"Can not set the content of {((IElementNode)parentNode).XmlType.Name} as it doesn't have a ContentPropertyAttribute", node); } else if (IsCollectionItem(node, parentNode) && parentNode is ListNode) { var parentList = (ListNode)parentNode; var source = Values [parentNode.Parent]; |