开发了一个自定义的Tree控件,但是放到大窗体上时,每个控件的移动效果特别明显,客户体验非常差。后来知道是因为图片重绘 的问题。附上解决的代码
public class BackgroundPanel : Panel
{
protected override void OnPaintBackground(PaintEventArgs e)
{
return;
}
protected override void OnPaint(PaintEventArgs e)
{
this.DoubleBuffered = true;
if (this.BackgroundImage != null)
{
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
e.Graphics.DrawImage(this.BackgroundImage, new System.Drawing.Rectangle(0, 0, this.Width, this.Height),
0, 0, this.BackgroundImage.Width, this.BackgroundImage.Height,
System.Drawing.GraphicsUnit.Pixel);
}
base.OnPaint(e);
}
}