////////////////////////////////////////////////////////////////////////
public static Object Execute(DynContext EvaluateContext, Object obj, IList <Object> Parameters)
{
Object Collection = obj;
#if !NET20
Object Key = Parameters == null ? null : Parameters.FirstOrDefault();
#else
Object Key = Parameters == null ? null : Linq2.FirstOrDefault(Parameters);
#endif
if (Collection == null)
{
return(null);
}
if (Collection is String)
{
Int32?index = UniConvert.ToInt32N(Key);
if (index == null || index < 0)
{
return(null);
}
String str = (String)Collection;
if (index >= str.Length)
{
return(null);
}
return(str[index.Value]);
}
if (Collection is DynLanObject)
{
DynLanObject DynLanObj = Collection as DynLanObject;
if (DynLanObj.TotalCount == 0)
{
return(null);
}
/*IDictionary<String, Object> dict = ((DynLanObject)Collection).Values;
* if (dict.Count == 0)
* return null;*/
String finalKey = ((String)(Key.GetType() == typeof(String) ? Key :
Convert.ChangeType(Key, typeof(String), System.Globalization.CultureInfo.InvariantCulture)));
return(DynLanObj[finalKey]);
}
if (Collection is IDictionaryWithGetter)
{
IDictionaryWithGetter dict = Collection as IDictionaryWithGetter;
if (dict.CanGetValueFromDictionary(Key))
{
return(dict.GetValueFromDictionary(Key));
}
}
else if (Collection is IDictionary)
{
IDictionary dict = (IDictionary)Collection;
if (dict.Count == 0)
{
return(null);
}
Type[] arguments = dict.GetType().GetGenericArguments();
Type keyType = arguments[0];
Object finalKey = Key.GetType() == keyType ? Key :
Convert.ChangeType(Key, keyType, System.Globalization.CultureInfo.InvariantCulture);
return(dict[finalKey]);
}
else if (Collection is IDictionary <string, object> )
{
IDictionary <string, object> dict = (IDictionary <string, object>)Collection;
if (dict.Count == 0)
{
return(null);
}
return(dict[UniConvert.ToString(Key)]);
}
if (Collection is IList)
{
Int32?index = UniConvert.ToInt32N(Key);
if (index == null || index < 0)
{
return(null);
}
IList list = (IList)Collection;
if (index >= list.Count)
{
return(null);
}
return(list[index.Value]);
}
if (Collection is IEnumerable)
{
Int32?index = UniConvert.ToInt32N(Key);
if (index == null || index < 0)
{
return(null);
}
Int32 i = -1;
foreach (Object item in ((IEnumerable)Collection))
{
i++;
if (i == index.Value)
{
return(item);
}
}
}
return(null);
}
////////////////////////////////////////////////////////////////////////
public static Object Execute(PainContext EvaluateContext, Object obj, IList <Object> Parameters)
{
Object Collection = obj;
Object value = Parameters != null && Parameters.Count > 0 ? Parameters[0] : null;
Object Key = Parameters != null && Parameters.Count > 1 ? Parameters[1] : null;
if (Collection == null)
{
return(null);
}
if (Collection is PainObject)
{
PainObject painObj = Collection as PainObject;
String finalKey = (String)(Key.GetType() == typeof(String) ? Key :
Convert.ChangeType(Key, typeof(String), System.Globalization.CultureInfo.InvariantCulture));
Object finValue = value == null ? null : (value.GetType() == typeof(Object) ? value :
Convert.ChangeType(value, typeof(Object), System.Globalization.CultureInfo.InvariantCulture));
painObj[finalKey] = finValue;
return(value);
}
if (Collection is IDictionary)
{
IDictionary dict = (IDictionary)Collection;
Type[] arguments = dict.GetType().GetGenericArguments();
Type keyType = arguments[0];
Type valueType = arguments[1];
Object finalKey = Key.GetType() == keyType ? Key :
Convert.ChangeType(Key, keyType, System.Globalization.CultureInfo.InvariantCulture);
Object finValue = value == null ? null : (value.GetType() == valueType ? value :
Convert.ChangeType(value, valueType, System.Globalization.CultureInfo.InvariantCulture));
lock (dict)
{
dict.Remove(finalKey);
dict.Add(finalKey, finValue);
}
return(value);
}
if (Collection is IList)
{
Int32?index = UniConvert.ToInt32N(Key);
if (index == null || index < 0)
{
return(null);
}
IList list = (IList)Collection;
if (index >= list.Count)
{
return(null);
}
Type listType = MyTypeHelper.GetListType(list);
Object finValue = value == null ? null : (value.GetType() == listType ? value :
Convert.ChangeType(value, listType, System.Globalization.CultureInfo.InvariantCulture));
list[index.Value] = finValue;
return(value);
}
return(null);
}
