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I have a textbox in my project and I want to ensure that users ype in a time in the format hh:mm:ss. Can anyone tell me how to do this?

I have created a program which has installed and successfully run on 30+ machines so far. However, on one machine I receive the following message "Run time error 339. Componenet Richtx32.ocx or one of its dependencies not correctly registered: a file is missing or invalid". Can anybody tell me...

I have a visual basic program which links to an access database. On the line of code which filles the dataset from the data adapter I get the following error: An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in system.data.dll. Curiously, another program which worked...

Can anyone advise the best way to close down a project. I have noticed that in some instances projects are still running when I think they have been closed. I have used: Close() Dispose() for programs with 1 form. For programs with more than one form I have used Application.exit. On some...

I am trying to create a front end to an Access database with VB .Net. The problem I have is with number and date fields. If I create a new record in VB. Net and try to add it to the database it accepts null values with no problem using DBNull. However, if I try to edit a record and enter a blank...

In VB6 I was able to have several textboxes on a form and, using a combination of the keypress event and keyAscii, could automatically convert input to uppercase. In VB .Net keyAscii is no longer available. Could anybody tell me how I can do this at form level.

Can anyone tell me the code for getting VB to check whether the screen resolution being used is 800 x 600? Thanks.

Could anybody recommend an installer for installing a VB6 project and accompanying files. I want the program to be installed on various operating systems (across multiple users). Thanks for any suggestions.

In my program the user is able to print text through the print dialog box. The text is in a RichTextBox. However, I also want them to be able to print images in an ImageBox. The image can be one of many, whichever the user has selected. I want the user to be able to go through the pring dialog...

I have created a project in VB and I would like it to run automatically from the CD whenever the CD is inserted. Can anybody tell me how I can do this. Thanks.

I have used Visual Studio Installer to create a setup package for a VB 6.0 project. I have tested this on a windows XP machine and the problem is that it installs the shortcut on the start menu under the Owner Start menu, rather than All User's Start menu. Does anybody know how I change this...

I want to be able to use the package and deployment wizard to create a setup file which, when installed, uses photos still on the CD-Rom. Therefore, my VB software needs to be able to locate the CD-Rom drive which, of course, could be different on different machines. Could anybody help me with...

Some time ago I wrote a program which loaded photos into a picturebox. Nowadays digital photos are much larger and are often too big for the screen. Does anyone know of code which will check the size of the picturebox against the size of the screen, and automatically reduce the picturebox if...

I have an MDI form with a menu that allows a user to open an image. The image is then placed into a PictureBox control on a child form. The Autosize property of the PictureBox is set to true. The child form is then made visible. When the child form appears I want it to be the same size as...