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C# FrameworkElement.AncestorsAndSelf方法代码示例

本文整理汇总了C#中System.Windows.FrameworkElement.AncestorsAndSelf方法的典型用法代码示例。如果您正苦于以下问题:C# FrameworkElement.AncestorsAndSelf方法的具体用法?C# FrameworkElement.AncestorsAndSelf怎么用?C# FrameworkElement.AncestorsAndSelf使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Windows.FrameworkElement的用法示例。


在下文中一共展示了FrameworkElement.AncestorsAndSelf方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: FindFrame

        /// <summary>
        /// Finds the frame identified with given name in the specified context.
        /// </summary>
        /// <param name="name">The frame name.</param>
        /// <param name="context">The framework element providing the context for finding a frame.</param>
        /// <returns>The frame or null if the frame could not be found.</returns>
        public static ModernFrame FindFrame(string name, FrameworkElement context) {
            if (context == null) {
                throw new ArgumentNullException(nameof(context));
            }

            // collect all ancestor frames
            var frames = context.AncestorsAndSelf().OfType<ModernFrame>().ToArray();

            switch (name) {
                case null:
                case FrameSelf:
                    // find first ancestor frame
                    return frames.FirstOrDefault();
                case FrameParent:
                    // find parent frame
                    return frames.Skip(1).FirstOrDefault();
                case FrameTop:
                    // find top-most frame
                    return frames.LastOrDefault();
            }

            // find ancestor frame having a name matching the target
            var frame = frames.FirstOrDefault(f => f.Name == name);
            if (frame != null) return frame;

            // find frame in context scope
            frame = context.FindName(name) as ModernFrame;
            if (frame != null) return frame;

            // find frame in scope of ancestor frame content
            var parent = frames.FirstOrDefault();
            var content = parent?.Content as FrameworkElement;
            return content?.FindName(name) as ModernFrame;
        }
开发者ID:gro-ove,项目名称:actools,代码行数:40,代码来源:NavigationHelper.cs

示例2: FindFrame

        /// <summary>
        /// Finds the frame identified with given name in the specified context.
        /// </summary>
        /// <param name="name">The frame name.</param>
        /// <param name="context">The framework element providing the context for finding a frame.</param>
        /// <returns>The frame or null if the frame could not be found.</returns>
        public static ModernFrame FindFrame(string name, FrameworkElement context)
        {
            if (context == null)
            {
                throw new ArgumentNullException("context");
            }

            // collect all ancestor frames
            var frames = context.AncestorsAndSelf().OfType<ModernFrame>().ToArray();

            if (name == null || name == FrameSelf)
            {
                // find first ancestor frame
                return frames.FirstOrDefault();
            }
            if (name == FrameParent)
            {
                // find parent frame
                return frames.Skip(1).FirstOrDefault();
            }
            if (name == FrameTop)
            {
                // find top-most frame
                return frames.LastOrDefault();
            }

            // find ancestor frame having a name matching the target
            var frame = frames.FirstOrDefault(f => f.Name == name);

            if (frame == null)
            {
                // find frame in context scope
                frame = context.FindName(name) as ModernFrame;

                if (frame == null)
                {
                    // find frame in scope of ancestor frame content
                    var parent = frames.FirstOrDefault();
                    if (parent != null && parent.Content != null)
                    {
                        var content = parent.Content as FrameworkElement;
                        if (content != null)
                        {
                            frame = content.FindName(name) as ModernFrame;
                        }
                    }
                }
            }

            return frame;
        }
开发者ID:jkmchinese,项目名称:ModernUI,代码行数:57,代码来源:NavigationHelper.cs


注:本文中的System.Windows.FrameworkElement.AncestorsAndSelf方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。