这是我用来从表存储中读取实体的代码片段:
public void OnReadingEntity(object sender, ReadingWritingEntityEventArgs args)
{
XNamespace AtomNamespace = "http://www.w3.org/2005/Atom";
XNamespace AstoriaMetadataNamespace = "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata";
GenericEntity entity = args.Entity as GenericEntity;
if (entity == null)
{
return;
}
// read each property, type and value in the payload
var properties = args.Entity.GetType().GetProperties();
var q = from p in args.Data.Element(AtomNamespace + "content")
.Element(AstoriaMetadataNamespace + "properties")
.Elements()
where properties.All(pp => pp.Name != p.Name.LocalName)
select new
{
Name = UnescapePropertyName(p.Name.LocalName),
IsNull = string.Equals("true", p.Attribute(AstoriaMetadataNamespace + "null") == null
? null
: p.Attribute(AstoriaMetadataNamespace + "null").Value, StringComparison.OrdinalIgnoreCase),
TypeName = p.Attribute(AstoriaMetadataNamespace + "type") == null
? null
: p.Attribute(AstoriaMetadataNamespace + "type").Value,
p.Value
};
foreach (var dp in q)
{
entity[dp.Name] = GetTypedEdmValue(dp.TypeName, dp.Value, dp.IsNull);
}
}
不幸的是,这段代码将返回一些存在于我已删除的实体中的属性。
有人可以解释这是为什么吗?