I need to call oleDbConnection.open concurrently in several class or in the same class but there is an exception System.InvalidOperationException occurred in system.data.dll Additional information: The connection is already open (state=open) **************************************************...more >>

I have seen various websites that say to use Textbox1.undo() but I want to have my undo button apply to all of the textboxes in my program. Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ...more >>

In http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/netcfdeployment.asp they talk about "1-click" to build an .msi package for Pocket PCs, but I think it's still a long way off. This article talks about "Custom Installer Components", where are these? How do y...more >>

I have now wasted too much time on this. I simply need to have a ToString format string that will take all values from 0 to 9 and return 00-09 and for numbers from 10-59 it is just 10-59. Any ideas? Lloyd Sheen ...more >>

I have a class that returns an arraylist. How do I fill a list box from what is returned? It returns customers which is a arraylist but I cant seem to get the stuff to fill a list box. I just learning and really need some help bad. Public Shared Function GetAll() As ArrayList Dim dsCustomer ...more >>

Hello and first of all thank you for your time. I am currently developing an ASP.net web page, which has data stored in SQL Server. It is a web page for a State Agent and my problem is: I need to create an image gallery (with some kind of slide Next and Previous picture) of the flat you are in...more >>

When debugging a C# application, I can make changes to the code and restart. Is there a way to do this in VB.NET? Right now, I have to kill the application, make the change, then rerun it. It seems to me that back in VB6, I could make code changes while debugging, set the cursor to the line I'd...more >>

I would like to change our web site to show the products using a catalog style of presentation. MS have a free template called "ecommercesdk". Though I don't need the cart side, the database format looks good. I tried to run the application from VB.NET 2003 but could not load the program (Kep...more >>

I am trying to set the position of a Form that I show as a Dialog as follows: dim myDialog as new Form1 myDialog.Left=200:myDialog.Right=400 myDialog.ShowDialog() This totally ignores my left and right settings. How can I change the position of myDialog in Code as it keeps reverting to ...more >>

In vb6, the way to create installation project is just use the package and deployment wizard. but in vb.net, we need to use setup wizard rite? i am stuck with the steps of it.. on step 2 of 4, i choose create a setup for windows application. on step 3 of 4, i ignore to include additional files. t...more >>

How can I create an instance of a class defined in a Dll? This is the code of the class: Class PrClass Public aPrNummer As Integer Public aPrBarcode As String Public aPrPma As Integer Public aPrVaMaNr As Integer Public aPrToMaNr As Integer Sub New(ByVal Prnumm...more >>

I'm writing a console program that takes input via the command line. Is there a way to pass these command line parameters while testing in Visual Studio? It's a real pain to keep creating the .exe and opening a command prompt. ...more >>

Hello, I have a Windows Service which executes some code each 2 seconds. Every 2 seconds I want to log the result in a Windows Forms application. What is the best approach? I think it is .NET remoting, but when the "client" application is not started, no logging has to be done. So the ...more >>

Hi There, I have written an SQL script which i run though a VB.net application. It has some print statements in which print results of the Script to the message window if you run the script in the Query Analyser. Is there a way or getting these messages in vb.net. Ive had a look round but n...more >>

Hello, I have a class where I store a lot of setting names. Right now they're all declared as consts : public const CurDoc as string = "CURRENT_DOCUMENT" From what I know about const, every call to CurDoc will be replaced with the text "CURRENT_DOCUMENT" during compilation. Is this right? If...more >>

Hi, How do I control the applcation version?? Change the Major, Minor, build and revision numbers? thanks, --max...more >>

vb.net 2002 When I set a breakpoint and hover the mouse over variables, the information revealed is not the actual value but information about the type of variable such as the size of an array. I can see simple scalar values such as indices, but geneally have to write the data to a listbox to se...more >>

what is lifetime service of a control? Usarian ...more >>

I have a usercontrol I created on a form. Every once in a while it will disappear from the form but the statement Friend WithEvents ControlText1... is still there but the rest of the windows created statements relating to it have disappeared! Real pain as I then have to replace the control...more >>

I made a Usercontrol that must have AutoScroll set to true when it is used. So I set it to True in the Load event. However the property still shows in the properties window when the control is placed on a form. That's confusing. How can I make that property not show in the properties win...more >>

Hi, my name is Mark Linehan. About 20 years ago or so I started learning how to program on the Commodore 64 computer (anyone remember those?) heheheh. I taught myself basic on this little machine to the point that there was nothing I could not do in basic on the 64 and started learning assembly ...more >>

Coming from a C/C++ background, how would I pass a function pointer to a function? I want to write a function that handles certain thread spawning. Here's what I'm trying to invision: function( thesub as <functionptr?> ) dim t as new system.threading.thread( _ new system.threading.thr...more >>

i try to print image file in a directory using PrintDocument. It will raise printPage event to draw image to the printer. The file will be deleted after print and the directory will be checked every second to get new file inside it. Where should i do the delete function? The way to print image i...more >>

i try to print image file in a directory using PrintDocument. It will raise printPage event to draw image to the printer. The file will be deleted after printing and the directory will be checked every second to get new file inside it. Where should i do the delete function? The way to print image ...more >>

I am developing a Application for a Project at Uni, and I have made a web browser on a form. It works when I have the form as its own window, but when I put it in a MDI it dorsnt work. Does anyone know a way around this?? thanks -- ------------ Mike Tadd...more >>

Does anyone know a way to change Windows display settings -- in particular from 16 to 32 bit colour quality and vice versa - in a .NET program? Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** CO...more >>

I need to specify a new data type, almost entirely a 'clone' of the existing DateTime type, with the following specific difference, and all the consequent differences in properties and methods which this one change implies. The day immediately before Thursday September 14, 1752 should be ...more >>

Hi All, In vb.net. why can't a object be accessed within its event handler, uisng 'this' pointer? Are there any alternatives to using 'this'? kd...more >>

Hi My VB.NET software is simply keeping a reference to certain EML file locations created by Outlook Express. When a user double-clicks a specific EML file from my grid, I'd like Outlook Express to start and display the email. I understand that you cannot automate OE in the same way as you...more >>

Hi Sorry for posting again. I'm calling a shared method in the class. The following error is found in production though I'm not able to reproduce. Microsoft.VisualBasic.CompilerServices.LateBinding.LateGet(Object o, Type objType, String name, Object[] args, String[] paramnames, Boolean[] Co...more >>

I'm creating a windows application for local use, it doesn't connects to any network. I've the data in an MS-Access database file and want to use it in my application (to search, retrieve, etc.) Does everyone who wants use the application needs MS-Access installed on his/her PC? Is it a better...more >>