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#1
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Class stops working
Class stops working...
Some time ago on Dick Kusleikas Daily Dose of Excel (dicks-glob.com) a utility for putting additional stats on the status bar was posted. With that idea in mind, I created a Class Module to show the sum and count of selected ranges on the status bar so that you don't have to continuously switch between them. To keep the status bar updated, in the class module, I use€¦ App_Stats_SheetActivate App_Stats_SheetSelectionChange App_Stats_WorkbookBeforeSave The problem is: Every so often, the Class Module stops working and the status bar no longer updates. I cant pin down whats going on when it stops working because I only look at the status bar when I need the sum/count information€¦and then notice that its not giving me the information. I have another Class Module that also depends on specific events such as SheetActivate that also appears to stop working at the same time. Does anyone have any idea why a class module might stop working and yet macros in Standard Modules continue to work? And, of course, do you know how to get around this issue? I dont know if Im going down a blind alley but it appears that macros that I specifically call work fine while macros dependent on an event stop. Any help would be greatly appreciated. Thanks in advance. Sincerely, Gary Brown |
#2
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Class stops working
Gary Brown wrote:
The problem is: Every so often, the Class Module stops working and the status bar no longer updates. I can't pin down what's going on when it stops working because I only look at the status bar when I need the sum/count information.and then notice that it's not giving me the information. I have another Class Module that also depends on specific events such as SheetActivate that also appears to stop working at the same time. Do you have another routine that you run occasionally that features an End statement? This would kill the global variable that is holding the instance of your class, even if it happens in a completely unconnected project. End is evil. Don't use it folks. Rob |
#3
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Class stops working
Gary
I like dicks-glob.com, but I named it dicks-blog.com. :) The problem is that the variable that holds the class has gone out of scope. That usually happens to me when I change something in the code - anywhere in the project not just in the class. I'm sure if that was the case for you, you would have made that connection. There are other reasons that a global variable can go out of scope, like the one Robert suggested. You might try putting a message box in the classe's Terminate event. If it is terminating normally, you can note the message box and possible determine what's happening right before it terminates. A lot of times when I need to be sure that class is instantiated, I use something like If gMyClass Is Nothing Then Set gMyClass = New MyClass End If at the start of a procedure to make sure nothing has happened to it. You just can't do this when you're using a class solely for events. If you knew when the events were going to happen, you wouldn't need the class. You can, however, do this kind of thing periodically in connection with something else that you may have going on. That's not as good of a solution as finding what's actually causing the variable to go out of scope though. -- Dick Kusleika Excel MVP Daily Dose of Excel www.dicks-blog.com Gary Brown wrote: Class stops working... Some time ago on Dick Kusleika's Daily Dose of Excel (dicks-glob.com) a utility for putting additional stats on the status bar was posted. With that idea in mind, I created a Class Module to show the sum and count of selected ranges on the status bar so that you don't have to continuously switch between them. To keep the status bar updated, in the class module, I use. App_Stats_SheetActivate App_Stats_SheetSelectionChange App_Stats_WorkbookBeforeSave The problem is: Every so often, the Class Module stops working and the status bar no longer updates. I can't pin down what's going on when it stops working because I only look at the status bar when I need the sum/count information.and then notice that it's not giving me the information. I have another Class Module that also depends on specific events such as SheetActivate that also appears to stop working at the same time. Does anyone have any idea why a class module might stop working and yet macros in Standard Modules continue to work? And, of course, do you know how to get around this issue? I don't know if I'm going down a blind alley but it appears that macros that I specifically call work fine while macros dependent on an event stop. Any help would be greatly appreciated. Thanks in advance. Sincerely, Gary Brown |
#4
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Class stops working
In article ,
"Dick Kusleika" wrote: I like dicks-glob.com, but I named it dicks-blog.com. :) Much more distinctive. Consider changing, Dick? |
#6
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Class stops working
Thanks Robert.
I know that I don't use the 'End' statement but now that you've put the bug in my ear, I'm currently working at a client that uses the Web-based version of Discoverer for Oracle. It's always putting hidden Excel V4 macros for formatting in it's downloads. I wonder??? I appreciate your time. Thanks again. -- Gary Brown "Robert Bruce" wrote: Gary Brown wrote: The problem is: Every so often, the Class Module stops working and the status bar no longer updates. I can't pin down what's going on when it stops working because I only look at the status bar when I need the sum/count information.and then notice that it's not giving me the information. I have another Class Module that also depends on specific events such as SheetActivate that also appears to stop working at the same time. Do you have another routine that you run occasionally that features an End statement? This would kill the global variable that is holding the instance of your class, even if it happens in a completely unconnected project. End is evil. Don't use it folks. Rob |
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