Codejock Developer Community : statusbar stops responding

statusbar stops responding : HI, We added XTP_SB_ENDSCROLL...

Sat, 24 May 2008 12:46:44 +0000

Author: Oleg
Subject: 10737
Posted: 24 May 2008 at 12:46pm

HI,

We added XTP_SB_ENDSCROLL for next release - fired when user release mouse after scroll.

statusbar stops responding : thanks.in the SliderPaneClick...

Fri, 23 May 2008 16:09:33 +0000

Author: leojay
Subject: 10737
Posted: 23 May 2008 at 4:09pm

thanks.

in the SliderPaneClick function, the value of parameter command couldbe 8 which does not exist in the definition of XtremeCommandBars.XTPSliderCommand. what's the meaning of 8?

statusbar stops responding : Hello, Its ActiveX control....

Fri, 23 May 2008 01:30:09 +0000

Author: Oleg
Subject: 10737
Posted: 23 May 2008 at 1:30am

Hello,

Its ActiveX control. line

XtremeCommandBars.StatusBar sb = CommandBars.StatusBar;

creates temporary object sb that become wrapper of StatusBar COM Object. it will be destroyed after method leave scope and Garbage collection decide to clean dead objects.

statusbar stops responding : thanks, it works.but i'm...

Thu, 22 May 2008 21:44:44 +0000

Author: leojay
Subject: 10737
Posted: 22 May 2008 at 9:44pm

thanks, it works.

but i'm still not convinced by your explanation. how could the statusbar be GCed, when it's still referenced by "CommandBars"?

statusbar stops responding : its .NET - you never know when...

Thu, 22 May 2008 08:55:34 +0000

Author: Oleg
Subject: 10737
Posted: 22 May 2008 at 8:55am

its .NET - you never know when object will be destroyed. :) So just move StatusBar declaration to variables of Form:

XtremeCommandBars.StatusBar sb;

private void Form1_Load(object sender, EventArgs e)

{

sb = CommandBars.StatusBar;

....

statusbar stops responding : i'm using c#.in a very simple...

Thu, 22 May 2008 05:03:46 +0000

Author: leojay
Subject: 10737
Posted: 22 May 2008 at 5:03am

i'm using c#.
in a very simple project, i just add a statusbar in the main form like this:

private const int MIN_VALUE = 0;
private const int MAX_VALUE = 300;
private const int DEFAULT_VALUE = 100;


public void SliderPaneClick(XtremeCommandBars.StatusBarSliderPane pane,
                            XtremeCommandBars.XTPSliderCommand command,
                            int pos)
{
    System.Diagnostics.Debug.WriteLine(string.Format("cmd: {0}, pos: {1}, pane: {2}", command.ToString(), pos, pane.ToString()));

    int newvalue = pos;

    switch (command)
    {
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_LEFT:
            newvalue = MIN_VALUE;
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_RIGHT:
            newvalue = MAX_VALUE;
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_LINELEFT:
            newvalue = Math.Max(MIN_VALUE, pane.Value - 10);
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_LINERIGHT:
            newvalue = Math.Min(MAX_VALUE, pane.Value + 10);
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_THUMBTRACK:
            newvalue = pos;
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_PAGELEFT:
            newvalue = Math.Max(MIN_VALUE, pane.Value - 30);
            break;
        case XtremeCommandBars.XTPSliderCommand.XTP_SB_PAGERIGHT:
            newvalue = Math.Min(MAX_VALUE, pane.Value + 30);
            break;
        default:
            System.Diagnostics.Debug.WriteLine(
                string.Format("strange value: cmd: {0}, pos: {1}", command.ToString(), pos));
            return;
    }

    if (newvalue != pane.Value)
    {
        pane.Value = newvalue;
        CommandBars.StatusBar.FindPane(1).Text = newvalue + "%";
    }
}

private void Form1_Load(object sender, EventArgs e)
{
    XtremeCommandBars.StatusBar sb = CommandBars.StatusBar;
    sb.AddPane(0);

    XtremeCommandBars.StatusBarPane p = sb.AddPane(1);
    p.Width = 40;
    p.Alignment = XtremeCommandBars.XTPTextAlignment.xtpAlignmentRight;
    p.Text = DEFAULT_VALUE + "%";

    XtremeCommandBars.StatusBarSliderPane slider = sb.AddSliderPane(2);
    slider.Min = MIN_VALUE;
    slider.Max = MAX_VALUE;
    slider.Value = DEFAULT_VALUE;
    slider.Width = 150;
    slider.SetTicks(DEFAULT_VALUE);
    sb.SliderPaneClick += SliderPaneClick;
    sb.Visible = true;

}

if i press the thumb of the slider, and drag it left and right for about one minute, the slider will stop responding any events.

you can get my project and screenshot here:
http://python.leojay.googlepages.com/sbtest.zip

btw, another strange thing is in the SliderPaneClick function, the value of parameter command could be 8 which does not exist in the definition of XtremeCommandBars.XTPSliderCommand.