Updating toolStripStatusLabel immediately

Question

I have a WinForms program that has a button, a statusStrip, and a toolStripStatusLabel in that statusStrip. If I click the button and this runs:

private void button1_Click(object sender, EventArgs e)
{
    toolStripStatusLabel1.Text = "Test";

    System.Threading.Thread.Sleep(5000);
}

Then the toolStripStatusLabel's text doesn't update until after the thread is done sleeping. How do I get it to update immediately, then sleep the thread?

@P.Kouvarakis I don't see any such method in https://msdn.microsoft.com/en-us/library/system.windows.forms.toolstripstatuslabel(v=vs.110).aspx — derekantrican, Apr 17 '17 at 21:56
Sorry, you are right.`ToolStripStatusLabel` is not a `Control`. You have to call `Update()` on the toolstrip itself (`statusStrip`?). — P. Kouvarakis, Apr 17 '17 at 22:00
Or you can add `async` before void and use `await Task.Delay(5000)` to replace `Thread.Sleep(5000)`. — Anthony, Apr 17 '17 at 22:12

derekantrican · Accepted Answer · 2019-08-13T17:05:10.143

7

As P. Kouvarakis said, the solution was this:

toolStripStatusLabel1.Text = "Test";
statusStrip1.Update();

edited Aug 13 '19 at 17:05

answered Apr 18 '17 at 14:08

derekantrican

1,891
3
27
57

score 0 · Answer 2 · answered Feb 16 '21 at 17:06

0

My status label change wasn't showing at runtime when the status strip had Spring set to true. I set Spring to false and it began showing.

answered Feb 16 '21 at 17:06

C.M.

1,474
13
16

score 0 · Answer 3 · edited Apr 09 '21 at 13:17

You need to add the StatusStrip text label (as a child) ('cause you can't manipulate with the text of a parent component) like this:

When you double-click on statusstrip component you will see the next

Do NOT add the text change code here, cause it will be refreshed only after a click on it (as you can see on the picture - statusStrip1_ItemClicked) so, any statusStrip1.Update(); this.Update(); etc can't help you.

How to do it quickly. You can add the if where the target condition started like in this picture

score -1 · Answer 4 · answered Jul 05 '19 at 14:27

-1

toolStripStatusLabel1.Text = "Test";
Application.DoEvents();

answered Jul 05 '19 at 14:27

Yiannis Leoussis

159
2
4

score -1 · Answer 5 · edited Aug 13 '19 at 17:45

-1

Last solution with Application.DoEvents() is the best. Application.DoEvents() must be appended to each StatusStrip change:

private void SetParseStatus(object sender, ParseStatusChangedEventArgs e)
{
    toolStripProgressBar1.Value = e.Percent;
    Application.DoEvents();
}

edited Aug 13 '19 at 17:45

ejderuby

710
5
21

answered Aug 13 '19 at 16:39

HRolle

1

DoEvents has potential side affects. You should avoid using it in most circumstances. – LarsTech Aug 13 '19 at 16:42
DoEvents() does indeed have strange and possibly serious side effects. I'm fighting DoEvents() right now where the application freezes because of liberal usage of DoEvents(). Unrolling the troubles will be difficult, it's been a week and I'm just now getting close to the issue. – John Dyer Feb 26 '21 at 18:43

Updating toolStripStatusLabel immediately

5 Answers5