萌新求助，WPF用户控件如何使用泛型类？

Question

快被这问题折磨死了，恳请各位不吝赐教.

Answer 1

快被这问题折磨死了，恳请各位不吝赐教.

Hi  杨_123456,

>>WPF用户控件如何使用泛型类

不知你具体的泛型类指的是什么。

一个比较常用的泛型如下： 在一个父类容器中找到指定类型控件的集合。

 public static List<T> GetLogicalChildCollection<T>(object parent) where T : DependencyObject
        {
            List<T> logicalCollection = new List<T>();
            GetLogicalChildCollection(parent as DependencyObject, logicalCollection);
            return logicalCollection;
        }

        private static void GetLogicalChildCollection<T>(DependencyObject parent, List<T> logicalCollection) where T : DependencyObject
        {
            IEnumerable children = LogicalTreeHelper.GetChildren(parent);
            foreach (object child in children)
            {
                if (child is DependencyObject)
                {
                    DependencyObject depChild = child as DependencyObject;
                    if (child is T)
                    {
                        logicalCollection.Add(child as T);
                    }
                    GetLogicalChildCollection(depChild, logicalCollection);
                }
            }
        }

Best Regards

Yong Lu

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