更新项目配置,新增设备同步模块,优化WebSocket和Swagger配置,增强SCADA系统的免登录接口,支持数据字典项和登录日志的免登录查询与记录。调整Java编译设置,确保更好的开发体验。
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yy-admin-master/YY.Admin.Core/Helper/ScrollViewerHelper.cs
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80
yy-admin-master/YY.Admin.Core/Helper/ScrollViewerHelper.cs
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using PropertyMetadata = System.Windows.PropertyMetadata;
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namespace YY.Admin.Core.Helper
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{
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/// <summary>
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/// ScrollViewer 辅助类:
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/// 解决 ScrollViewer 包裹 TreeView / ListBox 等控件时,
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/// 鼠标滚轮在内部控件上无法触发外层 ScrollViewer 滚动的问题。
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/// </summary>
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public static class ScrollViewerHelper
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{
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/// <summary>
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/// 附加属性:是否启用鼠标滚轮事件向上传递
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/// </summary>
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public static readonly DependencyProperty EnableMouseWheelPropagationProperty =
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DependencyProperty.RegisterAttached(
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"EnableMouseWheelPropagation", // 属性名
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typeof(bool), // 属性类型
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typeof(ScrollViewerHelper), // 所属类型
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new PropertyMetadata(false, OnEnableMouseWheelPropagationChanged)); // 默认值+回调
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/// <summary>
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/// 获取附加属性值(XAML 绑定/读取)
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/// </summary>
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public static bool GetEnableMouseWheelPropagation(DependencyObject obj)
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=> (bool)obj.GetValue(EnableMouseWheelPropagationProperty);
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/// <summary>
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/// 设置附加属性值(XAML 设置)
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/// </summary>
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public static void SetEnableMouseWheelPropagation(DependencyObject obj, bool value)
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=> obj.SetValue(EnableMouseWheelPropagationProperty, value);
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/// <summary>
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/// 当附加属性值发生变化时触发
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/// </summary>
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private static void OnEnableMouseWheelPropagationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is UIElement element)
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{
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// 如果启用,则订阅 PreviewMouseWheel 事件
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if ((bool)e.NewValue)
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element.PreviewMouseWheel += Element_PreviewMouseWheel;
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else
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// 否则移除事件
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element.PreviewMouseWheel -= Element_PreviewMouseWheel;
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}
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}
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/// <summary>
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/// 当鼠标滚轮在目标控件上滚动时触发,
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/// 将事件手动冒泡到上层(如 ScrollViewer)以实现滚动。
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/// </summary>
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private static void Element_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
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{
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// 若事件已被处理,则直接返回
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if (e.Handled) return;
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// 标记事件已处理,防止重复触发
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e.Handled = true;
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// 构造一个新的 MouseWheelEventArgs,用于向父级转发
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var eventArg = new MouseWheelEventArgs(e.MouseDevice, e.Timestamp, e.Delta)
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{
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RoutedEvent = UIElement.MouseWheelEvent, // 指定为标准鼠标滚轮事件
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Source = sender // 来源设为当前控件
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};
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// 获取父元素,并将事件重新抛出
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if (sender is Control control)
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{
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var parent = control.Parent as UIElement;
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parent?.RaiseEvent(eventArg);
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}
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}
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}
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}
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