我来自UserControl
,而我正在压倒OnPaint
。我希望这个控件可以滚动,但我想要的是能够获得滚动条的值并处理自己绘制所有内容的位置。我已经设置了以下内容:
// How the hell do I get this scrolling to not return to zero?
this.Scroll += new ScrollEventHandler(TimelineControl_Scroll);
this.HorizontalScroll.Enabled = true;
this.HorizontalScroll.Visible = true;
this.HorizontalScroll.Minimum = 0;
this.VerticalScroll.Enabled = false;
this.VerticalScroll.Visible = true;
this.AutoScroll = false;
我看到滚动位置的新值。但是,滚动条始终返回零。我做错了什么?
答案 0 :(得分:2)
我无法对该代码尝试执行的操作进行反向工程。 AutoScroll是你的朋友。这是一个例子:
public partial class UserControl1 : UserControl {
public UserControl1() {
InitializeComponent();
this.SetStyle(ControlStyles.ResizeRedraw, true);
this.AutoScroll = true;
this.AutoScrollMinSize = new Size(1000, 0);
}
protected override void OnScroll(ScrollEventArgs se) {
base.OnScroll(se);
this.Invalidate();
}
protected override void OnPaint(PaintEventArgs e) {
e.Graphics.TranslateTransform(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
e.Graphics.DrawLine(Pens.Black, 0, 0, 1000, this.ClientSize.Height);
base.OnPaint(e);
}
}