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thanks a lot. i hv read it he say "Let's say our Products table might have ProductID, ProductName, ProductCategory and ProductAttributesXML.
We would then use ProductCategory to decide what type of class we store in ProductAttributesXML. So for ProductCategory='Digital Cameras" we could define a class DigitalCameraAttributes with fields such as Pixels, MaximumZoom, StorageType, and a special user control to show these details. Likewise, a class called HardDiskAttributes for the Hard Disks category."
now i want to allow user to specifies this fields from form. so how can i define the class base on their input
thanks
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After I setup Component DevExpress for Visual Studio 2008, I can't run my project on other computer.Please help me to solve thisproblem!!!!!
Please guide me create setup file for my project that I can setup and run application on other computer that don't need to install DevExpress Component on that computer.Thanks alot!!!!
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This clue is helpfull for me.Thank you very much!!!!!!
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Hello,
I am programming in VB2005
I have a DataColumn with numbers and '<' sign as following:
-10
-5
<-90
<-50
+2
How can I sort this column?
Should I add another hided column and sort it?
Is there another way to do this?
Shay Noy
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I suppose the column is of type string (nvarchar/nchar/varchar/etc).
How do you want this column to be sorted? In other words, what should the order be in the example you posted?
My advice is free, and you may get what you paid for.
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Like this:
<-90 'Smaller than -90
<-50 'Smaller than -50 and that mean that it is bigger that <-90
-10
-5
+2
Shay Noy
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You said that you are allowed to add a new column, so I assume that you are free to adapt the table structure.
If I were you, I would separate the < and > type characters from this column into its own column. Then transform the original column to type int, and simply adapt any queries or code to take both columns into account instead of only the one.
This means that you may have to adapt the query that got the data into this column to begin with, so that it separates the two value types (integers and < / >).
My advice is free, and you may get what you paid for.
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Hi friends,
how to avoid flickering of tooltip? This application was done using vs-2003 and is working fine.But after converting it to vs-2008,flickering problem has arised .Please guide me in sorting out this issue.
Thanks,
Prasad
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When you say flickering do you mean it is blinking? (toggling visibility at a fixed interval)...?
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I installed a windows service in VB, and the service work fine.
But my service sometimes stop automatically when i don't use it for a long time (about 12hours).
Who can tell me reason?
Thanks.
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There is no reason why Windows would arbitrarily decide to stop a random service after 12 hours so there must be something else going on here. What does your service do?
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May be, an exception goes unhandled which bring down your service. Handle all exceptions and instrument your code to write to Windows Event Log when your service starts and stops. This might help you to troubleshoot your problem.
Also, in Service Manager, you can configure your service to restart automatically after a failure (in Recovery tab).
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Hello great minds!
I built a 2008 vb.net win app with a local MS Access DB that has several reports (.rdlc) They were all working just fine and suddenly:
"An error occurred during local report processing. An internal error occurred on the report server. See the error log for more details."
Can't see any reports at all. Since I could not locate the error log file, I rebooted the system, but the issue remains.
The stacktrace is:
at Microsoft.ReportingServices.Diagnostics.Utilities
.RSTraceInternal.Assert(...)
.RSTrace.Assert(...)
at Microsoft.ReportingServices.ReportProcessing
.ProcessingErrorContext.RegisterItem(...)
.ProcessingErrorContext.Register(...)
.ProcessingErrorContext.Register(...)
.ReportProcessing.RuntimeRICollection.GetExternalImage(...)
.ReportProcessing.ReportProcessing.Merge.Process(...)
.ReportProcessing.ReportProcessing.ProcessReport(...)
.ReportProcessing.ReportProcessing.ProcessReport(...)
.ReportProcessing.ReportProcessing.RenderReport(...)
.ReportProcessing.ReportProcessing.RenderReport(...)
at Microsoft.Reporting
.LocalService.RenderWithDataCache(...)
.LocalService.Render(...)
.WinForms.LocalReport.InternalRender(...)
Thank you very much for your time, interest and help.
alexvw.
modified on Wednesday, November 25, 2009 5:48 PM
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This article describes the same error, and although it talks about MS SQL 2005, I wouldn't be entirely surprised if it at least sets you in the right direction, as Visual Studio 2008 employs MS SQL 2005, and thereby possibly uses some common driver to access your Access DB.
My advice is free, and you may get what you paid for.
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Hi Johan,
Thank you for your help. This morning before going to work, I decided to try a silly thing. I replaced the myform.Designer.vb file with a previous one and it all came back to normal: well, did lose some data, but that won't take my sleep away.
My guess is that the code that created the instance and rendered the reportviewer object got somehow corrupted.
Once again, thanks for your time.
Best regards.
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My VB really sucks, after googling, I still can't find what Array("UserCode") is in the following line:
vUsers = m_ObjUser.Retrieve(Array("UserCode"), -1)
Help much appreciated thanks!
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From you personal comment I glean that this is legacy code, so I won't ask why you're messing about with VB6 still.
Without seeing all the relevant code, my guess is that this line breaks down as follows:
vUsers is a string that should hold a user's name ?
m_ObjUser is a custom object or class, that holds methods to get data about a user ?
.Retrieve(TheUserCode, SomeIntegerDeterminingSomething) is a method that gets the user's name based on his code ?
Array("UserCode") is an array that has a named index ("UserCode") which holds and returns the user's code. Although it seems a bit strange that that syntax would return anything.
You could just put MsgBox(Array("UserCode")) just before the line you posted, and see what it says.
The user code can end up in this array in any of a million ways. In other words just use the search function of your editor, and find out when / where this Array("UserCode") is created and/or gets populated.
My advice is free, and you may get what you paid for.
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This does not seem to be VB6 array syntax.
'Array' must be a user defined function that takes in a string as paramter and returns something (which is used by m_ObjUser.Retrieve).
Hint: Right click on 'Array' and select 'Definition' from the context menu to see what it means.
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'Array' is a global method in VB6 which takes a parameter array and returns an array of 'Variant'.
You can replace it by:
New Object() {"hello"}
or even better:
New String() {"hello"}
David Anton
Convert between VB, C#, C++, & Java
http://www.tangiblesoftwaresolutions.com
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Hello everyone i am currently trying to figure out to highlight text in a textbox when the user tabs over from textbox to textbox? For example lets say there are 4 TEXTBOXs and the first one displays teh name, 2nd = last name, 3rd= telephone, 4th= GPA, so when the user wants to add another record to the database and after entering in a NEW FIRST NAME, he/she tabs to the lastname text box and IT WOULD HIGHLIGHT THE TEXT and then he could just start entering in new text without having to erase(BACK SPACE what is der)
here is my code of what i got so far. Right now after saving using a button and he tabs it goes and hightlights the text of the FIRSTNAME TEXT BOX
private sub btnSave_Click(blah blah blah)
txtFirst.Focus()
txtFirst.SelectAll() 'selects text in firstname text box after hitting the SAVE BUTTON'
End Sub
I dunno if i would have to use something like TabIndexChanged and tell it to highlight the text?? or what? THANKS
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