public static PropertyInfo GetIdProperty(Type type)
{
var flags = BindingFlags.Instance | BindingFlags.Public;
PropertyInfo[] pinfos = type.GetProperties(flags);
foreach (PropertyInfo pi in pinfos)
{
object[] customAttStr = pi.GetCustomAttributes(typeof(Newtonsoft.Json.JsonPropertyAttribute), false);
if (customAttStr.Length > 0)
{
Newtonsoft.Json.JsonPropertyAttribute dm = customAttStr[0] as Newtonsoft.Json.JsonPropertyAttribute;
if (string.Compare(dm.PropertyName, "Id", StringComparison.OrdinalIgnoreCase) == 0)
{
return(pi);
}
}
}
PropertyInfo piId = type.GetProperty("Id", flags);
if (piId == null)
{
piId = type.GetProperty("id", flags);
if (piId == null)
{
piId = type.GetProperty("ID", flags);
}
}
if (piId != null)
{
return(piId);
}
throw new SiaqodbException("Type of object does not have Id property required by Azure Mobile Services");
}
private static IOrderedQueryable <T> ApplyOrder <T>(IQueryable <T> source, string property, string methodName)
{
var props = property.Split('.');
var type = typeof(T);
var arg = Expression.Parameter(type, "x");
Expression expr = arg;
foreach (var prop in props)
{
// Figure out if the property was "renamed" with JsonProperty(PropertyName)
// if so find the corresponding property
PropertyInfo pi = null;
var renamedProperties = type.GetProperties().Where(p =>
{
IEnumerable <Object> re = p.GetCustomAttributes(false).Where(a => a is Newtonsoft.Json.JsonPropertyAttribute);
return(re.Count() > 0 ? true : false);
});
foreach (var renprop in renamedProperties)
{
Newtonsoft.Json.JsonPropertyAttribute jpa = (renprop.GetCustomAttributes(false).Where(a => a is Newtonsoft.Json.JsonPropertyAttribute)).FirstOrDefault() as Newtonsoft.Json.JsonPropertyAttribute;
if (jpa.PropertyName == prop)
{
pi = renprop; break;
}
}
if (pi == null)
{
pi = type.GetProperty(prop);
}
expr = Expression.Property(expr, pi);
type = pi.PropertyType;
}
var delegateType = typeof(Func <,>).MakeGenericType(typeof(T), type);
var lambda = Expression.Lambda(delegateType, expr, arg);
var result = typeof(Queryable).GetMethods().Single(
method => method.Name == methodName &&
method.IsGenericMethodDefinition &&
method.GetGenericArguments().Length == 2 &&
method.GetParameters().Length == 2)
.MakeGenericMethod(typeof(T), type)
.Invoke(null, new object[] { source, lambda });
return((IOrderedQueryable <T>)result);
}
