//////////////////////////////////////////////////////////////////////// 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); }