private void label2_Paint(object sender, PaintEventArgs e)
{
Graphics newgraphics = e.Graphics;
Pen pen1 = new Pen(Color.Red, 1);
Point point4 = new Point(0, 40);
Point point5 = new Point(200, 40);
newgraphics.DrawLine(pen1, point4, point5);
}代码是在label2中画一条直线,请问,这个代码,如果改成用OnPaint方法,该怎么写?
谢谢!!
{
Graphics newgraphics = e.Graphics;
Pen pen1 = new Pen(Color.Red, 1);
Point point4 = new Point(0, 40);
Point point5 = new Point(200, 40);
newgraphics.DrawLine(pen1, point4, point5);
}代码是在label2中画一条直线,请问,这个代码,如果改成用OnPaint方法,该怎么写?
谢谢!!
label2_Paint事件就是label2的OnPaint方法触发的呀
public class NewLabel : Label
{
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
//自己的代码
Graphics newgraphics = e.Graphics;
Pen pen1 = new Pen(Color.Red, 1);
Point point4 = new Point(0, 40);
Point point5 = new Point(200, 40);
newgraphics.DrawLine(pen1, point4, point5); }
}手写代码,可能编译不通过