コード例 #1
0
        private static Array GetArray(Array source, Type childTargetType, IColumnInfo columnInfo)
        {
            // Handle struct type cases manually to prevent unboxing and boxing again
            if (childTargetType == typeof(TimeUuid))
            {
                var arrSource = (Guid[])source;
                var result    = new TimeUuid[source.Length];
                for (var i = 0; i < arrSource.Length; i++)
                {
                    result[i] = arrSource[i];
                }
                return(result);
            }
            if (childTargetType == typeof(DateTime))
            {
                var arrSource = (DateTimeOffset[])source;
                var result    = new DateTime[source.Length];
                for (var i = 0; i < arrSource.Length; i++)
                {
                    result[i] = arrSource[i].DateTime;
                }
                return(result);
            }
            // Other collections
            var childColumnInfo = ((ICollectionColumnInfo)columnInfo).GetChildType();
            var arr             = Array.CreateInstance(childTargetType, source.Length);

            for (var i = 0; i < source.Length; i++)
            {
                arr.SetValue(TryConvertToType(source.GetValue(i), childColumnInfo, childTargetType), i);
            }
            return(arr);
        }
コード例 #2
0
        private static Array GetArray(Array source, Type childTargetType, IColumnInfo columnInfo)
        {
            // Handle struct type cases manually to prevent unboxing and boxing again
            if (childTargetType.GetTypeInfo().IsAssignableFrom(typeof(TimeUuid)))
            {
                var arrSource = (Guid[])source;
                var result    = new TimeUuid[source.Length];
                for (var i = 0; i < arrSource.Length; i++)
                {
                    result[i] = arrSource[i];
                }
                return(result);
            }
            if (childTargetType.GetTypeInfo().IsAssignableFrom(typeof(DateTime)))
            {
                var arrSource = (DateTimeOffset[])source;
                var result    = new DateTime[source.Length];
                for (var i = 0; i < arrSource.Length; i++)
                {
                    result[i] = arrSource[i].DateTime;
                }
                return(result);
            }
            // Other collections
            var  childColumnInfo = ((ICollectionColumnInfo)columnInfo).GetChildType();
            var  arr             = Array.CreateInstance(childTargetType, source.Length);
            bool?isNullable      = null;

            for (var i = 0; i < source.Length; i++)
            {
                var value = source.GetValue(i);
                if (value == null)
                {
                    if (isNullable == null)
                    {
                        isNullable = !childTargetType.GetTypeInfo().IsValueType;
                    }

                    if (!isNullable.Value)
                    {
                        var nullableType = typeof(Nullable <>).MakeGenericType(childTargetType);
                        var newResult    = Array.CreateInstance(nullableType, source.Length);
                        for (var j = 0; j < i; j++)
                        {
                            newResult.SetValue(arr.GetValue(j), j);
                        }
                        arr             = newResult;
                        childTargetType = nullableType;
                        isNullable      = true;
                    }
                }

                arr.SetValue(TryConvertToType(source.GetValue(i), childColumnInfo, childTargetType), i);
            }
            return(arr);
        }