运行时可移动矩形窗口商店应用程序

Posted 2023-04-13

【中文标题】运行时可移动矩形窗口商店应用程序

【英文标题】：runtime Movable rectangle windows store app

【发布时间】：2015-11-17 01:21:59

【问题描述】：

我正在尝试创建将通过鼠标拖动移动的运行时间矩形。由于某种原因，代码无法正常工作。

    private void Rectangle_Click(object sender, RoutedEventArgs e)
    
        var rec = new Rectangle();
        rec.Height = 100;
        rec.Width = 100;
        rec.Fill = new SolidColorBrush(Colors.Violet);

        rec.ManipulationDelta += rec_ManipulationDelta;
        board.Children.Add(rec);

    

    void rec_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
    
        dragTranslation.X += e.Delta.Translation.X;
        dragTranslation.Y += e.Delta.Translation.Y;

        dragTranslation = new TranslateTransform();

        this.RenderTransform = this.dragTranslation;
     

【参考方案1】：

问题出在分配变换时。试试

private void Rectangle_Click(object sender, RoutedEventArgs e)

    var rec = new Rectangle();
    rec.Height = 100;
    rec.Width = 100;
    rec.Fill = new SolidColorBrush(Colors.Violet);

    rec.ManipulationMode=ManipulationModes.All;
    rec.ManipulationDelta += rec_ManipulationDelta;
    rec.RenderTransform=new TranslateTransform(); // Create new TranslateTransform and assign to the rectangle
    board.Children.Add(rec);



void rec_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)

    Rectangle recSender = (Rectangle) sender; // Get the Rectangle
    TranslateTransform ttSender = recSender.RenderTransform as TranslateTransform; // Get the Rectangle's RenderTransform (which is a TranslateTransform)

    ttSender.X += e.Delta.Translation.X;
    ttSender.Y += e.Delta.Translation.Y;