Noise box, when a table layout is scrolling, without 'AutoScroll' property enabled

Question

I have a big problem, when I doing a scrolling without 'Autoscrool' property enabled on a table layout, I get a noise box, seems that the layout continue scrolling (see attached image). I have tried update/refresh/invalidate... its container layouts, but I could not get success for my problem.

Other weird behavior that I have is, once have the noise box on the screen, and launched any dialog, the full layout is fixed.

Has anyone had a similar problem before?

see below the code that I'm using to scrool the table layout:

    private void panelSelectorTrackBar_ValueChanged(object sender, EventArgs e)
    {
        galleryTableLayoutPanel.Top = panelSelectorTrackBar.Value;
        dashboardPanelDetails.Hide();
    }

On where galleryTableLayoutPanel is a TableLayout instance, panelSelectorTrackBar is an UltraTrackBar instance.

Answer 1

假设您已设置UltraTrackBar的值，以便它们与TableLayoutPanel的可能的垂直滚动值匹配，那么最好设置VerticalScroll的Value，而不要在窗体上移动控件的位置：

this.tableLayoutPanel1.VerticalScroll.Value = ultraTrackBar1.Value;