I have installed VB Studio 2010 Express this week and have began working through the tutorials that are built in to the program to familiarise myself with using VB (I have zero previous knowledge).
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Associating an Event with an Event Handler, in the VB 2008 Express Edition Learn VB tutorial, but the link to "Events and Event Handlers"does not work.
View 1 RepliesAbout 3 years ago i came across a vb project for a photo album, it was on online tutorial and I followed it and after some custom tweaking I found it was quite usefull. Unfortuatly the original sourcecode has long since vanished.The project was fairly easy to follow and I remember the author had a photo image of his sailing boat and a yellow labrador (just trying to jog some memories here) :).
Anyway; I have searched high and low for it but can not find it. I'm pretty sure it was on a msdn or some other microsoft forum and was to do with VB 2005 or VB 2008 edition of Visual studio.
I have experience in C++ programming, but never created gui with it so learning vb.net for some quick gui development. and i want to learn vb.net. I can't install visual basic express on computer cause i'm on shared computer and such huge install is not possible on that computer. So i picked up sharpdevelop. After searching most of the tutorial, i found out that most of tutorial written for visual studio IDE for vb and vb.net. I'm trying to learn vb.net in depth from command line to gui programs. Any good recommendation of tutorials, book ? I searched google but very few results so far. I'm looking for good learning tutorials that can help learn with sharpdevelop.any suggestion for tutorial and books that mentions sharpdevelop in their tutorial/guide ?
View 2 RepliesSpy.net Trojan KEYLOGGER ?
View 2 RepliesLet me just start off saying that I'm generally new to all programming so if my coding is painful to read I understand. I am currently working on a project that relies on perfect or near perfect collision detection, and I'm not sure whats wrong but sometimes the object being moved completly passes through the object it is supposed to collide at. Here's my coding relating to collision detection so far:
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Also, the object, toon, is set to jump with a timer at an interval of 45. Any input regarding how I could make the overall collsion detection better or if I didnt provide the right section of code let me know.
I'm pretty sure its a false positive. My program does create and delete files when using it. Is there a way to stop showing as a false postive?
View 5 RepliesI have two questions.
1- I have two labels on a form, that I want to move randomly in the form. How can I do that?
2- How to work with collision detection in VB?
I want my program to detect and do something when ToolStripMenuItem is clicked.
View 17 RepliesI'm looking at a project that will use the speech recognition stuff provided with .NET, but need a tutorial or two to introduce me to it.
View 2 RepliesI am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords. Plan is to host this server so people can login to use the the application and verify they have a valid account. I would like to host all the account information in SQL due to the possiblity of hundreds of users at any given time. I also need the ability to add data to the database for users registering for the first time. The SQL server will need to be able to access the SQL Server databases remote via WAN.
View 3 RepliesI'm using .BeginConnect with an AsyncCallBack and for some odd reason when I try to add a string to a textbox using the sub below, from a routine within the socket, it just does not work. It's not stating an invoke is required either.Private Delegate Sub DelegateAddText(ByRef theText As String, ByRef AddReturn As Boolean, ByRef AddPrefix As Boolean) Public Sub AddText(ByRef theText As String, ByRef AddReturn As Boolean, ByRef AddPrefix As Boolean)
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as a side note which would be more efficient ... Indexing sockets and passing indexes through routines, or spawning classes. I realize spawning may use more memory but is it faster than indexing?
I am creating xml files that contain chinese posts and it seemed to be working but I started getting an error:This page contains the following errors:error on line 4165 at column 25: Input is not proper UTF-8, indicate encoding !Bytes: 0x0B 0xC3 0xA5 0xC2
Below is a rendering of the page up to the first error.When trying to open some of the resulting files.The line it references contains chinese characters and the error occurs only for some posts and my guess is that the text has some encoding issues.
Public Shared xwriter As XmlTextWriter = New XmlTextWriter(xmlfile, Encoding.UTF8)
I make sure the xmltextwriter is properly declared and set the encoding and from what I understand is that vb.net encodes everything in utf-16. My code works well with streams I get from another source that sometime contains chinese characters and it never invalidates the xml. I tried cleaning the text using the following functions and the xml is now valid but when viewing the xml in the browser the characters are not chinese but junk.
Private Shared Sub replaceIllegalXMLChars(ByRef tempstring As String)
'remove any hexdecimal characters like and �
tempstring = Regex.Replace(tempstring, "&#x([0-9A-F]{1}[0-9A-F]{0,1});", " ")
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so if I need to fix my data, my question is how can I detect what encoding is used for a specific text and how do I convert it into utf8 format that can be viewed in an xml file and make the file valid.
EDIT: I messed around with converting from one type to another, first ASCII to UTF8, then Unicode to UTF-8. did not work. The only time the xml is valid is when characters display as such:
油价，老百姓心�*永远的痛！ � 民生、控物价一边说，油价一边涨，国家真得是为了老百姓的民生� �？
I managed to get a program I made up and running fine, but i noticed it has a small memory leak somewhere. I looked through the code and I think its coming from somewhere in this
vb
Private Sub Button4_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
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I'm creating a web browser and I was wondering how I could make a button click cause the enter key to be pressed after without having to do it yourself on the keyboard.
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
End Sub
I'm having an issue with a program. It seems to run (continuously) any amount of time from a few days to about a week.Eventually, and seemingly randomly I get the following Errror. None of the users see a consistent item that is causing the hang, and sometimes it's even just running with no interaction with the user.I just get long signature alpha numerics as a debugging tool.Is there any way to
a) force my program to kick out of the hang if it detects one, (and I guess, how could I write a separate thread to detect a hang?)
b) find out where my program is hanging?
c) if none of these options are viable, some coding practices I might be doing wrong that I could change to help avoid this?
I tried to start using VB 2010 Express with a program I originally developed with VB 2005 Express that I moved to VB 2008 Express successfully a couple years ago. It uses a database file (*.mdf) that is on the computer ( not out on a server). When attempt to run the program in debug mode, I get the following error "An attempt to attach an auto-named database for file C:Documents and SettingsTomMy DocumentsQuizzing StuffQuestion Database 2010QuizQuest ionGameQuizQuestionGameinReleaseQuizQuestionDB.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share."
I first made a copy of the entire project folder that was working in VB 2008 Express and gave it a different name. In VB2010 I opened the project in the copied folder and it said it successfully converted the project. I am able to open the Data Source inthe Designer and see the database structure as I expect. I think the project is still using SQL Server 2005 Express (because it is what is checked in the list of prerequisites on the Publish tab).
Note, I have programmed off and on for many years, but fairly new to using databases and SQL Server.
Here is the scoop: I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords. Plan is to host this server so people can login to use the the application and verify they have a valid account. I would like to host all the account information in SQL due to the possiblity of hundreds of users at any given time. I also need the ability to add data to the database for users registering for the first time. The SQL server will need to be able to access the SQL Server databases remote via WAN.
View 1 RepliesI am trying to re write a VB6 program using MS Access, many years ago, using VB 2010 express and SQL server 2008 R2 Express. I have a database with several tables, which I created using the designer. I am able to connect to the database and select data and display it in textboxes etc in vb code. What I have not been able to in code is to INSERT rows DELETE rows or UPDATE any data in the tables. I can do any of these operations using the Query Designer, but I want to do it in code. I can post some code if necessiary, but I thought it might just be some property that I had not set in the designer.
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Is VB Express 2010 slower to compile and run that older versions of VB Express? I've installed it this weekend and it seems a little sluggish on my quad core computer with 1 gig of RAM. I have VB Express 2005 installed for my students at school and it seems to fly just fine. Those school computers are older P4s with 512k of RAM.
View 7 RepliesInitially my app worked with excel fine, now it causes my computer to reboot only after Excel has been opened (two or more times). I have opened and closed Excel files 20+ times without running thru either of my apps (they all uses identical code for excel) and it has never caused a reboot or a crash.
run either of my apps and have the app control excel has become a crap shoot, it will reboot my computer. Adding to that I then have to do a manual shutdown because the reboot process after is unstable. (System doesn't respond properly). My code in this app is small, should make for a good example. I can provide the entire project to anyone who would volunteer to test it. (First I need to know how to send the project).
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there Dream in Code Community! Im an okay programmer as far as skill right now I am still learning as we all are I need some help from some experienced VB.NET programmers in the community, Here is the scoop: I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords.
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If I create a DLL using VB 2010 express can it be used by previous versions of of .Net (3.5, 2.0)? Will the DLL use .Net 4.0 components, which is what I want. I don't see a way to force that to be the case.
View 1 Repliesthis is my very first posting and I must say I am desperate. I have a VB assignment due in 2 days and I am so lost. I have written a code to draw some graphic, just a basic house, tree, sun etc. I have also written a code to magnify said graphics which were all the specifications of my Assignment 1 part A. Now for Part B I am being asked to extend my program so that: A - My graphic can be drawn using different colour schemes designed by me but chosen by the user B - My graphic or an appropriate part of it can be animated around the picture box if the user chooses to do so. C - Error checking is included.
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Is it ok to install my VS 2010 Ultimate even if I already have VB 2010 Express Edition? or should I uninstall the express edition first?
View 3 RepliesHere are my questions concerning VB 2010 Express:
1. I've registered my VB 2010 Express, will it still expire?
2. Will the applications I made using VB 2010 Express expire after some time?
3. Is it OK to write my code in the designer.vb file? I don't know why, but when I started writing my application it took me to the designer.vb instead of form1.vb code.
4. I've been working on an application for a week now, but suddenly I can no longer access my Design View(Shift-F7). All my codes are written on the [form name].Designer.vb. I can still view my codes but I cant access my form layout. On the solution explorer, my forms no longer have the 'form icon'. When i press Shift-F7 nothing happens. Right-clicking the form on the solution explorer doesn't show 'View Designer' option. How can I fix this?
I just downloaded the Visual Studio 2010 Express for Mobile Phone. C# is the only language available. Will Microsoft add Visual Basic as well? When?
View 5 RepliesI was looking all over but didn't find how to change VB 2010 Express default gray theme?
View 4 RepliesI am learning VB for the moment. I want to copy/paste code from a PDF to Visual Basic 2010 Exppress, but if i paste the (structured in PDF) code to VB, i get 1 long string of code and need to restructure it by entering after each line. Otherwise VB gives me a lot of errors. This is a time consuming work. Isn't there a way, VB puts the code in the right format?
View 4 RepliesI'm trying to create an installer with VB 2010 Express. In order to do that, I need my project to have some files embeded so I can copy them in the installation directory. How could I make this (embed the files and then acces them from my code)?
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