Stop And Starts A Running Loop Of Number On A Text File Or Database In Visual Basic?
Aug 25, 2011
I need a small app that randomly shuffles a set of preloaded numbers. The shuffling will be visible on the screen and goes on continuously (looping) until a key is pressed and as soon as that happens it will show the winning number.Am using visual basics 2008 to develop the application but my problem is when i start the app and hit a key it will loop through my numbers on the text file and it will also display the event but if i hit a key to stop it will not stop..I was workin on the app but my problem is how to stop the loop and resume on the with a keypress. below is the app codes.
Dim Running As Boolean = False
Sub ReadAccounts()
Dim arr As New ArrayList
arr.Add("1366-665885-666-22650")[code]....
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Oct 17, 2009
I was wondering how you can add text from a text box to a database (table in visual basic). I've been looking all over the web, and i haven't found anything.
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Jun 29, 2010
I'm working on a practice exercise to convert a XML file to a text file. Here's the code;
Function XML2Text(xmlNode As Variant, Optional recordQuery As String = "*", _
Optional propertyQuery As String = "*", Optional filename As String = "", _
Optional Delimiter As String = ",") As String
Dim buffer As String
Dim recNodeList As IXMLDOMNodeList
[Code]...
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Feb 25, 2010
I am working on a program for the Windows Mobile 6.0 system and using Visual Basic 08. I would like for the current txt file that I have, that is formatted as follows: "NOR400","277225","ZIMA 4/6 12OZ NR BOTTLES","07199077603",21.65,"cs",7.19,"pk","C4/6PK","12 OZ "
to be imported and each item in the line will be assigned to its own txt box. I have been able to load up the file, in to one txt box, but am unable to separate the items in to their own box. Should I be using arrays for this?
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Jul 25, 2011
Ok, so I'm making a program that will read from a text file, convert each line into an array, the. Send each of those lines 1 per tick. This is in 2010 Visual Basic. Closest I've gotten is sending all at once, I worked on it over night and am slowly destroying it. Ideally, I want Button 1 click to populate the array from the file at LocationTB then start the timer. The timer should send a line at a time on the GapTB interval.
Public Class Form1
Public TextLine As String
Public MyFileName As String
[Code]...
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Feb 18, 2009
I've been trying to print out a text string to a printer that I have connected. I cannot print using the PrintDocument.Print() as this sends the string as a graphic to the printer.I don't know C# and I am very new to full fledged VB having spent most of my time using VBA in Excel
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Jan 20, 2010
I've seen posts on deleting the lines from a text file that are specified as a function parameter, but I only need to delete the first and last lines from the file.
I'm still a newbie when it comes to working in files, but it seems that it should be simple to delete the first line... Just delete all text from BOF to the first CrLf character. Am I right?
As for the last line, I understand that I'll have to get a count of the lines in the text file to find it (as the file won't always be x amount of lines long).
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Aug 24, 2008
In VB, i see file format in wav, but how we can run other formats through vb code my.computer.audio take wav format is there any other posibility
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Apr 1, 2011
I followed Ziannb article on involking powershell from visual basic. It works great but it doesnt allow me to run scripts with [URL]
- how can i run powershell scripts with arguments from VB
- how can i run one powershell command line at a time from VB. When i use below two command, it pipes the first command to the second one..instead of running them individually :
MyPipeline.Commands.Add("get-childitem")
MyPipeline.Commands.Add("get-date")
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Mar 2, 2010
i have the following code....
For Each dgvRow In bout_grid.Rows
vfile = dgvRow.Cells("FileName").Value
video.FileName = "D:ee" + vfile
[Code].....
but it plays only one video and than stops but i want that it should play every video in datagridview i.e bout_grid....i have tried
System.Threading.Thread.Sleep = vduration
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Aug 15, 2011
im making a friend adder for teenspot and this is what i have. basically you click a button and it adds the person selected on the list, then you have to click it again to add the next one. the thing is i need to know how to loops this so it just keeps moving down the list adding people automatically
[Code]...
ive tried multiple times with do...loop and for..next and all that kinda stuff, but i still havent figured it out. what it does is, it only runs through the add me pages and never clicks confirm which is the second part. im kinda new to vb
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Jan 31, 2012
How I can save a text in visual basic in a word file with specific format like font size or color or other format??
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Aug 1, 2011
I am new to Visual Basic and i started to write a console application. I it working fine by now, but I tried to execute a command like shutdown -s I tried that by writing
console.writeline("shutdown -s")
but all it dows it displays the text and does not shutdown the computer. How do I code that correctly???
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Jan 4, 2011
I hope someone can help with a very frustrating problem I'm trying to solve in one of our Windows Forms apps written in Visual Basic 2005 and running on Windows XP SP3.
The app is essentially quite simple in concept but there is lots of code and data, however, the problem does show itself consistently. The app does the following:
1) Startup
2) Choose Access database to load data from
3) Load the data into memory as a series of collections of objects
4) Do lots of number crunching
5) Fails when entering a particular sub for the first time with an Access Violation Exception
The most difficult aspect of this problem is it only shows itself when compiled in Release mode. It doesn't show itself when running in Debug mode either within Visual Studio or running outside Visual Studio. I assume this is due to the extra 'padding' in a debug exe which is masking the effect of bad code causing the error. The problem is made worse in that the 'standard' build target machine where the problem shows itself only has a copy of Visual Basic 2005 Express so as a result I have been debugging the app at runtime using WinDbg which is tricky but sort of fun (for a nerd!).
I have read / researched extensively on the internet for solutions and as a result have tried the following but all without success:
a) checked for any badly declared DLLs (p/invoke) but the app doesn't use a single one.
b) checked for any COM references / interop. There were two references which were rarely used so I removed them and commented out the code that referenced them but the exception was still raised.
c) I've tried adding my own trace code in the problem area and the line prior to calling the Sub runs but the first line of the Sub never executes due to the Access Violation exception being raised.
d) I have used WinDbg to set breakpoints around the problem area at runtime which has confirmed 'c' above that the sub never executes.
e) I have used WinDbg to double check the addresses of the parameters passed into the Sub are correct as they seem to correctly point to the same address as the local / module level variable that was passed in.
f) I have checked all of the extensive data loading is not eg leaving DataReader objects open etc.
g) I have tried compiling the code in VS 2008 on a different machine targeting the 2.0 framework but the bug still showed itself.
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Jun 24, 2009
i allready know i cant use sendkeys.send, whats the other code to do this?
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Jun 25, 2012
I currently have these group of files I want to rename:
C:Users medinaDocuments estenviromentTestfolderfile1-1111.doc
C:Users medinaDocuments estenviromentTestfolderfile2-1111.doc
C:Users medinaDocuments estenviromentTestfolderfile3-1111.doc
C:Users medinaDocuments estenviromentTestfolderfile20-1111.doc
I have a text box on my form where a I would enter a string of text which will replace the '1111' to whatever the string is in the text box field.
So for example, On my app, in the text box field, I would enter 2222, then when I click on button1, it will rename file1-1111.doc to file1-2222.doc, file2-1111.doc to file2-2222.doc, etc.....
This is my VB code I currently have:
[Code]...
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Mar 1, 2010
i have a for each loop i.e
[Code]...
if want that the loop stops while the player play a file until finished playback
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Jan 21, 2010
I am in process of writing a setup program that will reside in a USB stick.After inserting the Stick the VB2008E program starts (dont know how) and guides the technician to do certain tasks. As a part of this She/He needs to run a Setup.exe that resides in the same USB stick.
1- How do I define the drive letter of this USB stick.
2- How do I run the x:Setup.exe program without exiting the VB2008? The install process should begin after click of a button.
3- Would Autorun work on USB drives to run the program automaticaly?
4- How do I compile to make a single EXE file at the end?
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Sep 1, 2011
I am currently enrolled in the class. My final project for the class will generate random numbers within a range of numbers. For example, if I give the user five text windows to choose whether to input a number OR generate a random number, I will have a button called RANDOMIZE. Unfortunately, I do not know the line(s) of code for the random function.
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Jul 15, 2011
I need a function to calculate the number of weekdays between two dates in VB.NET. I don't need to worry about holidays. My attempts unfortunately have been futile.
This will go in custom code in Reporting Service 2008 R2.
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Dec 6, 2010
I Need a code to Identify Volume Serial Number and put in textbox1.text
The code should work for Visual Basic 2010
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Dec 1, 2009
A Visual Logic flowchart that requests a positive integer as input, and carries out the following steps:If the number is even, divide it by 2. Otherwise, multiply the number by 3, and add 1 to the result. Repeat this process with the resulting number, and continue repeating until the number 1 is reached.After the number 1 is reached, displayed how many iterations were required to reach the number 1. (Hint: a number is even if number Mod 2 = 0.)
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May 29, 2009
Project Euler's problem 16:2^(15) = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
What is the sum of the digits of the number 2^(1000)?I have been trying to do this problem for a few days now and i just can't figure out how to get vb.net 2008 to recognize anywhere near that large a number. I have seen in other posts that some software like java has the integer type BigNumber or BigInteger but i cant find anything like that in visual basic. I'm running into this problem a lot using Visual Basic. I also can't seem to find any of the standard upper level math features in visual basic such as factorials and a few others that i can't remember but couldn't find under the math feature. any suggestions? (Sorry let me rephrase, any suggestions on how to do this stuff without switching to a different programming language.)
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Nov 3, 2009
I want to create a text file or see if a text file exists when application starts. The problem I was having was after creating the text file, I tried to write to text file and got an error saying that another process was using it.
Dim test As String = My.Computer.FileSystem.SpecialDirectories.MyDocuments & " est1.txt"
If System.IO.File.Exists(test) Then
MsgBox("File Loaded")
Else
[code]....
I looked up topics on filestream, but am unsure if this is how to use it. Is my code ok? Is there another way to create a text file?
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Jun 4, 2012
I used this code for getting data from delimited text file into access database in VB6 and it is running Perfectly Same thing i want in VB.NET using OLEDB. So can anyone suggest me what code should i use..?
Other info:
Database = mydatabase.mdb
Table Name = SUBSCRIBER
4 Columns = NAME,AGE,GENDER,ID
Text File = temp.txt
[Code]...
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Apr 25, 2011
what is the code for finding the shortest,average and longest sentence form the text box
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Aug 16, 2011
So i watched this video here. [URL]
And i want to do this for like 40+ text boxes, how can i do it?
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Sep 22, 2010
I saw Beth videos, and I wanted o creat a database with Visual Basic...
I downloaded Visual Basic 2010 Express, but I saw there is no option to connect to server...
and in the Databse Explorer, there is only Data Connections and no "Servers"...
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Oct 6, 2009
i'm trying to use a database with Visual Basic Express Edition but I seem to be stuck with:-* Adding* Editing* Removinga record. Could anyone advise me please, or write a piece of basic code so I can achive the above?Thank You.Also (Out of interest)Can anyone explain, when I've added a entry into my Access database through my visual basic form, I have created.I can see the record, if I load the database in Microsoft Access.When I load my small project back in to Visual Basic Express Edition and run it, the database is blank?
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Jan 4, 2010
How to use mysql in visual basic as database?
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