/// <summary> /// Label走马灯自定义控件 /// </summary> [ToolboxBitmap(typeof(Label))] //设置工具箱中显示的图标 public class ScrollingTextControl : Label { /// <summary> /// 定时器 /// </summary> Timer MarqueeTimer = new Timer(); /// <summary> /// 滚动文字源 /// </summary> String _TextSource = "滚动文字源"; /// <summary> /// 输出文本 /// </summary> String _OutText = string.Empty; /// <summary> /// 过度文本存储 /// </summary> string _TempString = string.Empty; /// <summary> /// 文字的滚动速度 /// </summary> double _RunSpeed = 1000; DateTime _SignTime; bool _IfFirst = true; /// <summary> /// 滚动一循环字幕停留的秒数,单位为毫秒,默认值停留3秒 /// </summary> int _StopSecond = 3000; /// <summary> /// 滚动一循环字幕停留的秒数,单位为毫秒,默认值停留3秒 /// </summary> public int StopSecond { get { return _StopSecond; } set { _StopSecond = value; } } /// <summary> /// 滚动的速度 /// </summary> [Description("文字滚动的速度")] //显示在属性设计视图中的描述 public double RunSpeed { get { return _RunSpeed; } set { _RunSpeed = value; MarqueeTimer.Interval = _RunSpeed; } } /// <summary> /// 滚动文字源 /// </summary> [Description("文字滚动的Text")] public string TextSource { get { return _TextSource; } set { _TextSource = value; _TempString = _TextSource + " "; _OutText = _TempString; } } private string SetContent { get { return Content.ToString(); } set { Content = value; } } /// <summary> /// 构造函数 /// </summary> public ScrollingTextControl() { MarqueeTimer.Interval = _RunSpeed;//文字移动的速度 MarqueeTimer.Enabled = true; //开启定时触发事件 MarqueeTimer.Elapsed += new ElapsedEventHandler(MarqueeTimer_Elapsed);//绑定定时事件 this.Loaded += new RoutedEventHandler(ScrollingTextControl_Loaded);//绑定控件Loaded事件 } void ScrollingTextControl_Loaded(object sender, RoutedEventArgs e) { _TextSource = SetContent; _TempString = _TextSource + " "; _OutText = _TempString; _SignTime = DateTime.Now; } void MarqueeTimer_Elapsed(object sender, ElapsedEventArgs e) { if (string.IsNullOrEmpty(_OutText)) return; if (_OutText.Substring(1) + _OutText[0] == _TempString) { if (_IfFirst) { _SignTime = DateTime.Now; } if ((DateTime.Now - _SignTime).TotalMilliseconds > _StopSecond) { _IfFirst = true; ; } else { _IfFirst = false; return; } } _OutText = _OutText.Substring(1) + _OutText[0]; Dispatcher.BeginInvoke(new Action(() => { SetContent = _OutText; })); } }
以上放到cs文件中 然后 编译 就可以在工具箱中看到ScrollingTextControl 名称的label控件
<Window x:Class="WpfDemoNew.Window21" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window21" Height="300" Width="300" xmlns:my="clr-namespace:WpfDemoNew.Control"> <Grid x:Name="grid"> <my:ScrollingTextControl Content="12345" Height="52" HorizontalAlignment="Left" Margin="10,10,0,0" x:Name="scrollingTextControl1" VerticalAlignment="Top" Width="121" Foreground="Black" /> </Grid> </Window>