Form partially disappers during long processing in a different thread

[TomTom]

In my C# WinForm program, I create a new thread to do a long process of
inserting data from Access files to SQL DB. The problem is that some parts
of the MainForm pertially disappear while the new thread is doing its task.
I found many articles on this on the Internet and followed the example from
http://www.codeproject.com/csharp/workerthread.asp. Still some parts of the
MainForm (buttons) disappear and it appears that the code is not updating
the label on the MainForm properly. Are there any areas that I might be
overlooking?

The code looks like this, although this partial code may not make much
sense..

mainForm.BeginI nvoke(mainForm. delegateUpdateM ainUi, new Object[] {"Number of
records inserted: " + numberOfRecords Processed.ToStr ing()} );

Thanks,
TomTom

[Ignacio Machin \( .NET/ C# MVP \)]

Re: Form partially disappers during long processing in a different thread

Hi,

Are you updating the UI frmo the worker thread?
If so use Control.Invoke ( do a search in the archives by Control.Invoke )
and you will find a lot of code snipets that works.

IF you create a new thread the UI should work fine, unless you are
interacting with the UI frmo the worker thread.

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation


"TomTom" <no_spam@nospam fordiscussion.c om> wrote in message
news:uCWTxI89EH A.2180@TK2MSFTN GP10.phx.gbl...[color=blue]
> In my C# WinForm program, I create a new thread to do a long process of
> inserting data from Access files to SQL DB. The problem is that some parts
> of the MainForm pertially disappear while the new thread is doing its
> task. I found many articles on this on the Internet and followed the
> example from http://www.codeproject.com/csharp/workerthread.asp. Still
> some parts of the MainForm (buttons) disappear and it appears that the
> code is not updating the label on the MainForm properly. Are there any
> areas that I might be overlooking?
>
> The code looks like this, although this partial code may not make much
> sense..
>
> mainForm.BeginI nvoke(mainForm. delegateUpdateM ainUi, new Object[] {"Number
> of records inserted: " + numberOfRecords Processed.ToStr ing()} );
>
> Thanks,
> TomTom
>
>[/color]

[TomTom]

Re: Form partially disappers during long processing in a different thread

Thanks for your answer, Ignacio.
I was using the Join() method and after I removed this, the form began to
behave as expected.

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.mach in AT dot.state.fl.us > wrote
in message news:%23TuBUS$9 EHA.1260@TK2MSF TNGP12.phx.gbl. ..[color=blue]
> Hi,
>
> Are you updating the UI frmo the worker thread?
> If so use Control.Invoke ( do a search in the archives by Control.Invoke )
> and you will find a lot of code snipets that works.
>
> IF you create a new thread the UI should work fine, unless you are
> interacting with the UI frmo the worker thread.
>
> Cheers,
>
> --
> Ignacio Machin,
> ignacio.machin AT dot.state.fl.us
> Florida Department Of Transportation
>
>
> "TomTom" <no_spam@nospam fordiscussion.c om> wrote in message
> news:uCWTxI89EH A.2180@TK2MSFTN GP10.phx.gbl...[color=green]
>> In my C# WinForm program, I create a new thread to do a long process of
>> inserting data from Access files to SQL DB. The problem is that some
>> parts of the MainForm pertially disappear while the new thread is doing
>> its task. I found many articles on this on the Internet and followed the
>> example from http://www.codeproject.com/csharp/workerthread.asp. Still
>> some parts of the MainForm (buttons) disappear and it appears that the
>> code is not updating the label on the MainForm properly. Are there any
>> areas that I might be overlooking?
>>
>> The code looks like this, although this partial code may not make much
>> sense..
>>
>> mainForm.BeginI nvoke(mainForm. delegateUpdateM ainUi, new Object[] {"Number
>> of records inserted: " + numberOfRecords Processed.ToStr ing()} );
>>
>> Thanks,
>> TomTom
>>
>>[/color]
>
>[/color]