public static Type[] GetElementTypes(Type enumerableType, IEnumerable enumerable,
ElementTypeFlags flags = ElementTypeFlags.None)
{
if (enumerableType.HasElementType)
{
return new[] {enumerableType.GetElementType()};
}
Type idictionaryType = enumerableType.GetDictionaryType();
if (idictionaryType != null && flags.HasFlag(ElementTypeFlags.BreakKeyValuePair))
{
return idictionaryType.GetTypeInfo().GenericTypeArguments;
}
Type ienumerableType = enumerableType.GetIEnumerableType();
if (ienumerableType != null)
{
return ienumerableType.GetTypeInfo().GenericTypeArguments;
}
if (typeof(IEnumerable).IsAssignableFrom(enumerableType))
{
var first = enumerable?.Cast<object>().FirstOrDefault();
return new[] {first?.GetType() ?? typeof(object)};
}
throw new ArgumentException($"Unable to find the element type for type '{enumerableType}'.",
nameof(enumerableType));
}
public static Type[] GetElementTypes(Type enumerableType, ElementTypeFlags flags = ElementTypeFlags.None)
{
return(GetElementTypes(enumerableType, null, flags));
}
public static Type[] GetElementTypes(Type enumerableType, ElementTypeFlags flags = ElementTypeFlags.None)
{
return GetElementTypes(enumerableType, null, flags);
}
