Thread and ShowDialog

24 Nov 2004 12:37 PM

Fatih

I have a problem about threading when using ShowDialog method.

I have 2 forms and first one opens second one as modal. Form2 (second form)
has a progress bar. Any suggesstion.

Thanks.

HEre is my code...

private void Form1_Load(object sender, System.EventArgs e)
        {
            Thread t = new Thread(new ThreadStart(test));
            t.Start();
            this.label1.Text = "12 3214 ";
        }

        private void test()
        {
            Form2 d = new Form2();
            d.TopMost = true;
            d.ShowDialog();
        }

// Form2 code....

private void Form2_Load(object sender, System.EventArgs e)
        {
            for(int i = 0 ; i < 100 ; i++)
            {
                this.progressBar1.Value = i;
                Thread.Sleep(50);
            }
        }

Thanks

24 Nov 2004 2:25 PM

Herfried K. Wagner [MVP]

"Fatih" <Fa***@discussions.microsoft.com> schrieb:
>I have a problem about threading when using ShowDialog method.
>
> I have 2 forms and first one opens second one as modal. Form2 (second
> form)
> has a progress bar. Any suggesstion.

Always show your forms in your app's main thread...

A .NET Progress Dialog
<URL:http://www.codeproject.com/cs/miscctrl/progressdialog.asp>

Multithreading + Windows Forms:

<URL:http://msdn.microsoft.com/library/en-us/dnforms/html/winforms06112002.asp>
<URL:http://msdn.microsoft.com/library/en-us/dnforms/html/winforms08162002.asp>
<URL:http://msdn.microsoft.com/library/en-us/dnforms/html/winforms01232003.asp>

<URL:http://www.devx.com/dotnet/Article/11358/>

<URL:http://msdn.microsoft.com/library/en-us/cpref/html/frlrfSystemWindowsFormsControlClassInvokeTopic.asp>

Multithreading in Visual Basic .NET (Visual Basic Language Concepts)
<URL:http://msdn.microsoft.com/library/en-us/vbcn7/html/vaconthreadinginvisualbasic.asp>

Sample:

<URL:http://dotnet.mvps.org/dotnet/samples/filesystem/downloads/FileSystemEnumerator.zip>

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

24 Nov 2004 3:27 PM

Fatih

Thanks sir but is there any way to open the progress window as modal. (with
ShowDialog method)

Show quote

"Fatih" wrote:

> I have a problem about threading when using ShowDialog method.
>
> I have 2 forms and first one opens second one as modal. Form2 (second form)
> has a progress bar. Any suggesstion.
>
> Thanks.
>
> HEre is my code...
>
> private void Form1_Load(object sender, System.EventArgs e)
>         {
>             Thread t = new Thread(new ThreadStart(test));
>             t.Start();
>             this.label1.Text = "12 3214 ";
>         }
>
>         private void test()
>         {
>             Form2 d = new Form2();
>             d.TopMost = true;
>             d.ShowDialog();
>         }
>
> // Form2 code....
>
> private void Form2_Load(object sender, System.EventArgs e)
>         {
>             for(int i = 0 ; i < 100 ; i++)
>             {
>                 this.progressBar1.Value = i;
>                 Thread.Sleep(50);
>             }
>         }
>
>
> Thanks

9 Dec 2004 2:30 AM

Anthony H

Considering how ubiquitous the need for progress dialogs is -- and how
complex it is to program them -- why hasn't any of the component vendors
added it to their suites? I would *totally* pay money for one!

handa29

*** Sent via Developersdex http://www.developersdex.com ***
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13 Dec 2004 3:03 PM

Ed Kaim

You can write a progress dialog in about 3 minutes. Check out ProgressBar:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/vbconprogressbarcontroloverview.asp.

Show quote

"Anthony H" <hand***@hotmail.com> wrote in message
news:e7U0GcZ3EHA.2288@TK2MSFTNGP11.phx.gbl...
> Considering how ubiquitous the need for progress dialogs is -- and how
> complex it is to program them -- why hasn't any of the component vendors
> added it to their suites? I would *totally* pay money for one!
>
> handa29
>
>
>
> *** Sent via Developersdex http://www.developersdex.com ***
> Don't just participate in USENET...get rewarded for it!