Please wait..

[padvou]

Hi everybody.
When there's a time consuming query that selects data to fill a listview how can I inform the user to wait until they are finished?
I 've tried putting progressdialog show before the commad that runs the query, but it ...doesn't show
Maybe because the main thread is too busy? I don't know...
Any suggestions, please?

 

[DouglasNYoung]

Padvou,
I think you are looking for

ProgressDialogShow (Text As String)

cheers,
Douglas

 

[padvou]

That is correct. That is exactly what I used, but it's not showing.

 

[thedesolatesoul]

Add DoEvents after ProgressDialogShow.

 

[Informatix]

Hi everybody.
When there's a time consuming query that selects data to fill a listview how can I inform the user to wait until they are finished?
I 've tried putting progressdialog show before the commad that runs the query, but it ...doesn't show
Maybe because the main thread is too busy? I don't know...
Any suggestions, please?

Look at the Demo_WordDBTable2.bas of UltimateListView (Sort_Data function). It shows a rotating circle while the data are sorted.
This code doesn't use DoEvents and thus is more B4A compliant.

 

[padvou]

Look at the Demo_WordDBTable2.bas of UltimateListView (Sort_Data function). It shows a rotating circle while the data are sorted.
This code doesn't use DoEvents and thus is more B4A compliant.

CallSubExtended?
Looks like the threading way of running code used in visual studio.

 

[Informatix]

CallSubExtended?
Looks like the threading way of running code used in visual studio.

It's a library provided with ULV in the version 2 folder. It extends CallSub and allows to run a sub asynchronously or/and with any number of parameters or/and with a return value of any type.

 

[padvou]

Thank you. I appreciate it.

 

[Erel]

Note that you can also use the new async queries added to the SQL library.

 

[padvou]

Note that you can also use the new async queries added to the SQL library.

Thank you Erel. I'll try it out.

 

[padvou]

It's a library provided with ULV in the version 2 folder. It extends CallSub and allows to run a sub asynchronously or/and with any number of parameters or/and with a return value of any type.

Sometimes under unspecified circumstances, the separate process never finishes..
How could it be monitored somehow and killed after, for example, 5 seconds?

 

[yttrium]

Sometimes under unspecified circumstances, the separate process never finishes..
How could it be monitored somehow and killed after, for example, 5 seconds?

A timer to query for progress?

 

[Informatix]

Sometimes under unspecified circumstances, the separate process never finishes..
How could it be monitored somehow and killed after, for example, 5 seconds?

You cannot kill it easily. It has to exit properly. That means you have to add code to handle all error cases.

 

[padvou]

You cannot kill it easily. It has to exit properly. That means you have to add code to handle all error cases.

That's hard to find, due to not being able to debug seperate threads...

 

[padvou]

That's hard to find, due to not being able to debug seperate threads...

So, back to square 1...
any hints on how to kill it?

 

[Informatix]

That's hard to find, due to not being able to debug seperate threads...

Use the Log() function to trace the execution of your code.

 

[Informatix]

any hints on how to kill it?

It's almost impossible in B4A.

 

[padvou]

Hi again,
to bring up the rather old issue of the sub that has been called using CSE that never exits..
I desperately need some workaround to make it exit even if it has error, or whatever the issue. My app gets stuck with a progressbar and i cannot do anything to kill it, or my app...

 

[Erel]

Is the query slow? You should use async queries instead.

 

[padvou]

Is the query slow? You should use async queries instead.

I think there's something globally wrong..
Do ftp uploads work on separate thread also?