Form Blanking

[Repton]

Hi,

When I create an application using VB.Net and I test it,
while it is running if I alt tab away from tha pplication
then back again the applications controls and form goes
blank until the task it is running finishes.
For instance if I have a form that opens a txt file and
reads it into a sql database it wokrs ok everytime but
the counter and the rest of the form goes blank if I swap
out and back to it.
What am I missing?

Thanks in advance.

Repton

 

[Nathan Enright]

Hi Repton,
It sounds like the form is not being redrawn because you are blocking the
UI thread. Take a look at the following article and see if it helps out...

Asynchronous Execution in Visual Basic .NET
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dv_vstechar
t/html/vbasync.asp

HTH,
Nathan

 

[Repton]

Hi,

Thank you.
Thats just what I needed.
I had not seen any evidence of this in any code before.
And seeingas thats teh only way I have to learn it at the
moment...

Thanks again.

Repton