我这样写为什么没有丝毫效果? private void panel1_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
{
this.label1.Text = "nihao";
if (e.Delta < 0)
{
this.panel1.VerticalScroll.Value -= 1;
}
else
{
this.panel1.VerticalScroll.Value += 1;
}
}哪里错了啊,谢谢了.
{
this.label1.Text = "nihao";
if (e.Delta < 0)
{
this.panel1.VerticalScroll.Value -= 1;
}
else
{
this.panel1.VerticalScroll.Value += 1;
}
}哪里错了啊,谢谢了.
//panel好像无法得到焦点,不过可以设置窗体的MouseWheel事件
this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);