zoukankan      html  css  js  c++  java
  • 获取自定义组件的宽度和高度

    在获取wpf自定义组件的宽度和高度的时候,如果直接在InitializeComponent();后面用this.Width,和this.ActualWidth会得到Nan和0,因为组件还没有被计算大小。

    要获得组件的宽度和高度可以添加Loaded事件的响应函数,在事件函数里面在用this.Width就可以得到组件的宽度。

    public lineNet()
    {
        InitializeComponent();
    
    
        Loaded += delegate
        {
            Line line11 = new Line();
            Line line12 = new Line();
            Line line21 = new Line();
            Line line22 = new Line();
            //定义参考线颜色宽度
            line11.StrokeThickness = 2;
            line11.Stroke = Brushes.Blue;
            line12.StrokeThickness = 2;
            line12.Stroke = Brushes.Blue;
            line21.StrokeThickness = 2;
            line21.Stroke = Brushes.Blue;
            line22.StrokeThickness = 2;
            line22.Stroke = Brushes.Blue;
    
            //定义参考线起止坐标
            line11.X1 = 0;
            line11.Y1 = 0;
            line11.X2 = this.width;
            line11.Y2 = 0;
    
            line12.X1 = 0;
            line12.Y1 = this.height;
            line12.X2 = this.width;
            line12.Y2 = this.height;
    
            line21.X1 = 0;
            line21.Y1 = 0;
            line21.X2 = 0;
            line21.Y2 = this.height;
    
            line22.X1 = this.width;
            line22.Y1 = 0;
            line22.X2 = this.width;
            line22.Y2 = this.height;
    
            MainCanvas.Children.Add(line11);
            MainCanvas.Children.Add(line12);
            MainCanvas.Children.Add(line21);
            MainCanvas.Children.Add(line22);
        };
               
    }
  • 相关阅读:
    Django RequestContext用法
    【Django】Django命令(Manager.py)
    Django:快速搭建简单的Blog
    win7下安装Ubuntukylin-14.04双系统
    activity生命周期
    Activity(三)
    BZOJ 3944 Sum 解题报告
    BZOJ 3901 棋盘游戏 解题报告
    web框架之socket
    新式类__new__()方法
  • 原文地址:https://www.cnblogs.com/wangjixianyun/p/2814246.html
Copyright © 2011-2022 走看看