[vb.net] Forum Topics

can nyone tell me the best vb.net book which contain oracle database connectivity

Hello all, I'm working on an app that takes a huge computational effort. It all works fine, but while calculating all other processes are overruled: - switching between forms doesn't work while my app is computing - Progress bars aren't properly refreshed, despite my form.refresh command So basically I'd like …

I'm creating a web application in VB.NET 2003 that connects to a SQL database... how do I display the data in separate controls (TextBoxes, labels, etc) instead of in a data grid? Thanks, Windows 3.11

hello, i need help!!!!! i would like to know how i can make a backup and restore of my db mysql from one form???

Just a note, I was surfing the TV (satellite) the other night and ran accross a channel I had never seen before called TechTV and there was a recorded presentation done in Toronto, Canada by a .NET developer. Anyhow, it was rather informative, I gathered some interesting info from it, …

Hi, I need to do the usual i.e design a form to get user registration details. I need to allow him to select his country ,state city but i figure making three separate postbacks would greatly reduce the performance. Alternatively i was planning to fetch the whole data at client …

Hi there, I am currently working on my thesis and i came up with a problem. basically, my thesis is a simulation of an arena where you can change the positioning (by dragging) of the seating etc. Now i used labels as seats. I'm attaching the code i used to …

Hi, I'm using a datetimepicker in a form and i have a textbox also. I need to list the days clicked separated by a "," in the textbox, however i have no idea how to code it. ex. i used [code] dates_chosen.text = datetimepicker1.value.dayofweek.toString [/code] but if i click on …

I am upgrading a vb 6.0 app to .net and I'm having trouble moving a file. The app retrieves info from an XML. When it's done I try to move the .xml file to a history folder and I'm getting an error: An unhandled exception of type 'System.IO.IOException' occurred in …

I have a library that allows mirroring each object within a form, by passing a parameter (true will mirror), it also sets the RightToLeft Prameter to True. I need to incorporate the mirroring capability to my application so that it will display properly for an Arabic GUI. How can I …

Ok, so here's the problem: I have a database with tables made with Microsoft Access. I know how to connect to this databse, and retrieve information in the tables, and update the information in the tables. I was hoping someone could help me with the code for inserting new tables, …

hi, i need a help from u guys.please help me by sending code for this. am a learner in vb.net. i created a form window in vb.net.on the form its display my hard disk partitions using combo box.by clicking the respective partition that selected partion the Security properties need to …

Hey all~ I'm very new to VB.net infact i've only been so far through 2 classes but I'm still going. My personal Project that I'm doing is a simply display with some buttons that when you click on them that link to an exe file on my desktop. I've gotten …

hi can anyone suggest of how a data report can be print directly in vb.net. i have tried by print document. Bur it only printing the project cade or the page after running it.

I m writing this code in VB.NET web application to set the MIME type for some particular file extensions.It working fine but what i want to do is i don't want the web application I want this code in vb.net 1.1 console application.Is it possible to use httpresponse in console …

hi everybody, how to draw shapes like(rectangle,circle)in VB.NET on the form load itself.... rather than using button_click or other things... plz do send me the code...

i want to use sendkeys method in vb.net project .whn i put in the code for "WINDOWS KEY" it gives me the error message.tht it is invalid. is it possible to send keys like this: for example in button's click event i i put [ sendkeys.send({LWIN})] it says: "An unhandled …

I have created 5 different projects in VB in Visual Studio. Pretty basic stuff, but all have different functions that they perform. I have added all projects into one solution just to show them in a linear fashion to management for evaluation. I really do look up basically everything I've …

Hello,,, I am creating a screen call (Contacts information) for my project using VB.NET where i want to add picture box contanin as(defualt picture) and button when click in it appear browse picture where you can select the picture you want and appear in the picture box. can any one …

Hello I'm a civil engineering student and I don't know much of programming. I have to make a program [in Visual Basic] to identify if a certain spot with known coordinates is placed inside a the known polygon of a road. The coordinates of the polygon consisted by the road's …

[COLOR=#000000]Hi my program won’t let me create a session, application, or cache variable. It also won’t allow me to do this: [/COLOR] [COLOR=#000000] [/COLOR] [COLOR=#000000]Response.Redirect("default.aspx?question=1")[/COLOR] [COLOR=#000000]Dim num As String = Request.QueryString("question")[/COLOR] [COLOR=#000000] [/COLOR] [COLOR=#000000]In all cases, I get the message: You cannot refer to an instance member of a class …

we did a project in vb.net.we have a list box which shows the drives(c:,d:,e:) which are available in our system.according to selected drives .we need to give a protection (unable) to write operation to that selected drive. No one should have a permission to write operation to our drive. if …

Hi, I've problem here. I create 3 check boxlist using vb.net 2.0. One of my check boxlist is uncheck when i try to save in database. when i want to save this using Microsoft access database the error come System.NullReferenceException – “Object reference not set to an instance of an …

hi our projects did a task of hiding a volume(eg D: , E: , F:) in our mycomputer. by using registrykey, we hide the drives . But if any software(eg back up software, full format software) is installed in my system that installed software detect that hidden volume(our project hidden …

Visual Studio 2005 Profesional: I am using Windows Installer to create a Setup.msi. I want users to be able to download a 30 day free trial of my Windows app from my website. The download worked fine on my development computer. When I tried it from a friend's computer, with …

How would onw send a message to another program? I googled it, but it came up with stuipd text messaging. I want to send a false message to another program. Something like sending Windows Media player the "Play" message, or the "stop" message, etc. (yes, this is for vb.net... :D)

Hello everyone, can you help me, I have a Toolbar with several buttons, when I want to edit each button, all of them have the same event code ToolBar1_ButtonClick so I can't write code for each button hope you can help me, thank u

How would one go about generating a set of tones (frequencys) on the sound card? What i mean by this is, how would a person generate tones at the same time? (I.E. 62hz, 100hz, 432hz, and 1000hz at the SAME time?) Thanks.

i want to kno how to play a wav sound in vb.net2003 i kno how to play it jus once this is the code i have: [ wFlags = SND_LOOP x = sndPlaySound("C:\WINDOWS\Media\chord.wav", wFlags)] i was told tht SND_LOOP will play it simaltaniously but 4 sum reaason it dnt work..

i'm having a problem regarding my monthcalendar coz i want my monthcalendar to have its own database... and also i'm dealing problems in my other database