功能:重绘winform的GroupBox,以便调整边框颜色和边框宽度 using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Windows.Forms; using System.Drawing.Drawing2D
private void GroupBox_Paint(object sender, PaintEventArgs e) { if (sender != null && sender is GroupBox) { GroupBox gbx = sender as GroupBox; e.Graphics.Clear(gbx.BackColor); Color color = Color.Black; Pen p = new Pen(color, 1); int w = gbx.Width;
void java.awt.Container.validate()Validates this container and all of its subcomponents.这个函数更新容器及其全部子控件,更新容器意味着重新布置它的子控件.布局相关的更改(例如设置子控件的大小位置,向容器添加新控件)会invalidate这个容器.需要注意,当前容器invalidate会自动导致它的父容器进行invalidate(详见Component.invalidate).因此,要想恢复整个层次的有效性(v