I started working in an old application for a client (hence i cannot add that much code). The application have some forms. On the main form i select a value from a dropdown list this calls a form to load. When this happens i'getting an error:
Compile error: Sub or function not defined
I started debugging and put some breakpoints and the program stops at the very:
Private Sub Form_Load()
It's a complex application with many forms and .bas files so i cannot add that much code since is not my application but in general is someone have heard about this and can give me orientation on what should be my next move please.
If i delete or comment Form_Load the program goes on but crashes later on since this sub process important data.
Regards!
I guess sometimes we have to load the solution again.
I think this was a matter of a faulty solution. I contacted the client and they sent an updated solution.
Thanks everybody for your help.
Related
I am beginner in using Visual FoxPro. I am trying to create a simple application which contains a form with a few textboxes. The problem is that the application window does not appear when I run the executable file which I build.
The code for the program is:
PROCEDURE main_app
_SCREEN.Activate
_SCREEN.WindowState = 2
_SCREEN.backcolor = RGB(128, 128, ;
128)
_SCREEN.Caption = ""
_SCREEN.refresh()
SET TALK OFF
SET DELETED ON
SET EXCLUSIVE OFF
CLEAR ALL
CLEAR
CLOSE ALL
DO FORM simpleform LINKED
READ EVENTS
RETURN
*MESSAGEBOX('Msg')
ENDPROC
In the form I have a few textboxes and a button. When the button is clicked then some code is executed. If I run the application from the IDE everything works fine but if I create the executable this does not display any window, still the process appears in the task manager. If I uncomment the MessageBox then this will appear even if I run the exe file. I don't know a way to trace the problem outside the IDE, maybe there is still a library needed that I am not aware.
I am using Visual FoxPro 9.0
Would someone be able to help me out?
If you can provide me with a link to a very simple application exe which uses just one form and finishes when the form is closed I would very much appreciate it.
Thanks in advance
I tried creating a brand new project, new code and new form just as you described. I copied your code and ran, but it never displayed the form.
If this is the main app in your project, you don't need the initial
PROCEDURE main_app
just remove this line as there is nothing CALLING the "Main_App" and thus is never getting called to ultimately call your form.
Just comment it out, save your project and run it... See what you get, it SHOULD work.
** PROCEDURE main_app
The problem was that I did not set the screen visibility to true.
My question is very basic on one hand but on the other hand the general situation is more complex, plus I cannot really get any working sample.
I'm developing/maintaing a web-application which is currently in transition from GWT code base into Ember.js.
Most of the newer code already relies on Ember.js and I think it's really awesome.
The problem is we cannot use Ember Router as all the request are being handled by the GWT.
In order to enabled the application run in this unusual configuration we have special JavaScript files that create our Ember main objects (Controllers & Models) for us.
As you can imagine navigation between tabs is cumbersome and is handled by GWT who creates Ember objects when needed. We are in transit toward a brave new world Ember Router and all.
But in the meantime, this is the problem I'm facing right now.
The user clicks a link which opens a page that contains some Ember based table.
The data is retrieved form the server using some Ajax code. Upon success it spawns a forEach loop which tries to pushObject all the received date into our Ember based components.
My problem happens when the user quickly switches between tabs. In this case the first list of object has not finished rendering yet and suddenly there's a new set of objects to handle. This causes Ember to throw errors like:
"Uncaught Error: Cannot perform operations on a Metamorph that is not in the DOM. "
and
"Uncaught NotFoundError: An attempt was made to reference a Node in a context where it does not exist."
Is it possible to prevent the loop from trying to render?
I've tried checking if the controller in question is already inDOM and it is, is there a way to notify Ember this object is no longer valid?
Sorry for a lengthy question and lack of running sample.
I'd probably modify the switch tab code to only execute afterRender has completed, that way you aren't mucking with ember objects while they are being used.
Ember.run.scheduleOnce('afterRender', this, function(){
// call GWT switch tab routine
});
Thank you Daniel and Márcio Rodrigues Correa Júnior. eventually what I did is to add a patch that would check the current context of the application (in my case the currently selected tab). If upon receiving the AJAX response the application is in the correct context (meaning the user haven't change the tab) go on. Otherwise just ignore the response and do not try to render it.
Now it seems to be working
I'm hopefully missing something obvious here...
I have just kicked off developing a new Access 2010 application. Something personal and hopefully simple.
The first thing I need to do is read a bunch of files off of the hard drive. I parse the contents adding the information to a table if it doesn't already exist.
Code works fine, that's not the issue. As it can take a while I've added a simple progress dialog using a standard form but in dialog/popup mode. As the For Each loop of the FSO.Folder.Files object is progressed I send some information to a couple of text boxes and issue a Me.Repaint (have also tried DoCmd.RepaintObject acForm, "FormName").
The issue is that I can get anywhere from 5% to 35% of the process complete before the repaints stop responding. The form only repaints when it gets to 100%.
The process uses limited recursion - if there is a subfolder - it calls itself to process that subfolder, but the folder structure is fairly linear so not many of those.
There are nothing bound to the form. All table updates happen in code and via RecordSets.
Any ideas why Access stops responding?
Cheers,
Roy
Add DoEvents after Repaint. That will cause Access to yield to Windows, which will can then handle its pending tasks ... such as updating the display in this case.
Actually, if your code updates text boxes, I don't see why you need to Repaint the form in order to display the changes. Try something like this instead ...
Me.MyTextBox = "hello"
DoEvents
Im hours and hours finding why one of my ZEND plugin sometimes running twice (depends on URL)
Note that my plugin has preDispatch and postDispatch methods and when I debugging the code it works like this:
MY_Plugin:preDispatch (echo $_SESSION['DBG'] has value)
MY_Plugin:postDispatch (unset($_SESSION['DBG']))
and then again
MY_Plugin:preDispatch (echo $_SESSION['DBG'] not exist)
MY_Plugin:postDispatch
This is part of bootstrap code
$_SESSION['DBG'] = 'value';
$MYrouter = new MY_Router_MyRouter();
$frontController->setRouter($MYrouter);
$frontController->registerPlugin(new MY_Plugin());
Do you have any suggestion how this could occur or how can I simulate this.
Thanks for any suggestion
Cervenak
Thanks guys for lot of valuable hints.
Now watch my story :)
First I had turned off showing exceptions (parameter False). So I switch them ON to see exception notification.
$frontController->throwExceptions(true);
Than I saw that I dont have uploaded controller and view files. After uploading them ZEND started to work corectly.
Good to know to have this direction set ON during debugging. You could probably save hours.
The dispatcher loop most likely running twice (the controller is dispatched twice). Possible causes:
using action view helper
calling _forward
redirector action helper
manually calling dispatch()
dispatch loop aborted and started again (eg. resetting request params)
Also, take a look at this ZF flow diagram (hotlinked from php-professionals.com)
Another reason could be an missing favicon.ico :-)
If the Apache cant find it, it fires a second request.
I eventually couldn't get any further with my program due to the various shortcomings of VB.NET (bad audio support, no reading events in the middle of execution, very weak keyboard input, etc). So I tried SDL.NET 6.1.
Despite its terrible documentation, I was able to fix my code to use it and I love it!
But there's a problem. I don't know how to set up my application settings for it. The Startup Object definitely should be a class (the examples always are in classes, never modules), but a startup class specifically has to be a form! This is bad because SDL makes its own window via SetVideoMode; you don't need a form. So when the form constructor New() finishes, a useless form is created and you have two windows.
I tried placing a call to the game engine loop within New() so that the game starts up without New() ever finishing. The game runs normally, and this solves the "second window" problem... but it can't be closed! X button does nothing, calls to Events.QuitApplication or Me.Close are blatantly ignored, etc.
I'm stumped. It seems I need to set a non-form class as the startup object, but it won't let me.
Oh, by the way, it seems that there are two things called "SDL NET". To clarify, I'm using this one, which exists in the SdlDotNet namespace.
Oh, I forgot to mention, I also noticed that a lot of the examples have a line that says "[STAThread]". Is this is important?
EDIT:
I've already received and accepted an answer for my question, but I want to tell other people what the problem is with exiting/closing the app, even though that wasn't my question:
While SDL.NET allows you to receive input and run other events without having to stop running logic, the application still cannot quit while logic is being run. So I find the best way to tell your SDL.NET application to Quit in the middle of running logic is to use the following TWO lines:
SdlDotNet.Core.Events.QuitApplication
End
Place these in the handler for the SdlDotNet.Core.Events.Quit event, as well as anywhere else you want your program to quit.
The Startup Object definitely should be a class (the examples always are in classes, never modules)
Here's your mistake. There's no real difference between a class and a VB module from CLR perspective. So just make it a module with Main and go on. There is no need for a class. I suspect you're looking at C# examples, which use classes - but that's because there is no such thing as a module in C#.
[STAThread] probably won't make any difference for SDL. It is important for UI applications (both WinForms and WPF require it), but I don't think that SDL does any COM calls, so it shouldn't care whether your thread is STA or not. It's just something that Visual Studio puts on Main in new projects by default.