Disable WinForms ProgressBar animation

Question

Is there a possbility to disable animation of the progress bar?

I need it for some pocess which is paused and not running at the moment. An average user would think

Answer 1

What you will want to do is set the style on this control specifically to override the theme changes. This article gives you a bit of information.

Answer 2

Paste this as to code. This will rewrite the progress bar, it's also customizable to color.

public class CProgressBar : ProgressBar
{

public Color MyColor {
    get { return _color; }
    set {
        _color = value;
        MyBrush = new SolidBrush(_color);
        Invalidate();
    }
}

private Color _color = Color.Green;

public CProgressBar()
{
    SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw, true);
}

public int Value {
    get { return _value; }
    set {
        _value = value;
        Invalidate();
    }
}

private int _value;

private SolidBrush MyBrush = new SolidBrush(_color);

protected override void OnPaint(PaintEventArgs e)
{
    e.Graphics.FillRectangle(MyBrush, new Rectangle(0, 0, Width * (_value / Maximum), Height));
}
}

Answer 3

You can use the Vista progress bar's paused state, like this:

// Assuming a Form1 with 3 ProgressBar controls
private void Form1_Load(object sender, EventArgs e)
{
  SendMessage(progressBar2.Handle,
    0x400 + 16, //WM_USER + PBM_SETSTATE
    0x0003, //PBST_PAUSED
    0);

  SendMessage(progressBar3.Handle,
    0x400 + 16, //WM_USER + PBM_SETSTATE
    0x0002, //PBST_ERROR
    0);
}

[DllImport("user32.dll", CharSet = CharSet.Unicode)]
static extern uint SendMessage(IntPtr hWnd,
  uint Msg,
  uint wParam,
  uint lParam);

Answer 4

The standard means of communicating to a user that an action is either paused or can't be accurately measured is to use the marquee display style.

progressBar1.Style = ProgressBarStyle.Marquee;

This style ignores the Maximum and Value properties and displays a progress bar "segment" that continually moves across the progress bar and loops around (it doesn't fill the progress bar, it moves what looks like a section of the bar all the way across the control and around to the beginning again.)

Answer 5

You could override the OnPaint() of the progressbar. You don't actually need to rewrite the whole thing, you just have to inherit the progressbar and override OnPaint like this:

public class my_progress_bar : ProgressBar {
        public Brush brush;
        public my_progress_bar() {
            this.SetStyle(ControlStyles.UserPaint, true);
            brush = Brushes.ForestGreen;
        }
        protected override void OnPaint(PaintEventArgs e)
        {
            //base.OnPaint(e);
            Rectangle rectangle = e.ClipRectangle;
            rectangle.Width = (int)(rectangle.Width * ((double)Value / Maximum)) - 4;
            ProgressBarRenderer.DrawHorizontalBar(e.Graphics, e.ClipRectangle);
            rectangle.Height = Height - 4;
            e.Graphics.FillRectangle(brush, 2, 2, rectangle.Width, rectangle.Height);
        }
    }

Answer 6

My workaround was to use a Panel Control instead of ProgressBar. I changed BackColor, BorderStyle (to Fixed3D) and I manipulate its Width to display needed level of progress. I assumed that 100% of progress is equal to Width of the Form.