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Display 2nd window while create background task

Posted on 2011-02-17
6
Medium Priority
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Last Modified: 2013-12-17
Hi,

I don't understand why my 2nd window not appearing while I can background task:

     private void button1_Click_2(object sender, System.EventArgs e)
        {
            FirmWare fw = new FirmWare("gvruwebtester.dll", null, "gvruwebtester.dll");
           
            Initialization frmInit = new Initialization();
            frmInit.Show();   <---- not showing ??????
            // frmInit.progressInit.Visible = true;
            bgw.RunWorkerAsync(fw);
        }

Thanks,
JT
0
Comment
Question by:jtran007
6 Comments
 
LVL 10

Assisted Solution

by:ALaRiva
ALaRiva earned 600 total points
ID: 34921980
What code do you have running in the constructor of that class?

Is it appearing AFTER the code runs? Or never opens at all?

My assumption would be that you are running all of your code in the constructor and then dumping the form after, which essentially means that you will never see the form.

More details please.

- Anthony
0
 
LVL 11

Accepted Solution

by:
Sudhakar Pulivarthi earned 1400 total points
ID: 34922152
Hi try this.

private void button1_Click_2(object sender, System.EventArgs e)
        {  
            Initialization frmInit = new Initialization();
            frmInit.Show();
            // frmInit.progressInit.Visible = true;

            FirmWare fw = new FirmWare("gvruwebtester.dll", null, "gvruwebtester.dll"); // This might be the problem causer, please check whether its returning / taking long time.
            bgw.RunWorkerAsync(fw);
        }
0
 

Author Comment

by:jtran007
ID: 34922724
Hi,

I just put delay time after show. Then my second window appears. I don't understand why.
Anyway it solves my problem. Thanks.
JT
0
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LVL 3

Expert Comment

by:chandra_darbha
ID: 34923033
That means, the application thread is getting busy executing the FirmWare constructor and hence the Form is not getting displayed. Looking at the constructor parameters it gives a feel of Assembly loading etc., Reflection API. Are you doing any reflection in the constructor?

Thanks,
Chandra
0
 

Author Comment

by:jtran007
ID: 34925860
Hi,

No.I don't use reflection. Just initialize serial port.

Cheers,
JT
0
 

Author Closing Comment

by:jtran007
ID: 35380729
Thanks,
JT
0

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