i have a small program to get text from a DAT file. the program gets all the text and puts it into a rich text box (rtb1) then I click a button (btnformat) to split the text in the dat file into indexes so that I can output the indexes that I want to an excel file. This program works when I use small amounts of data but if I use say 800 lines of text the program crashes/ can't handle the volume of data and just stalls.
View 14 RepliesI need to make a small programm for ticketing on a parking for a small hotel.So i have 2 Printers pariking In (for delivery of the tickets) and 2 Readers PArking Out.Both Printers and REaders are working Serial.So i need to poll the serial ports of the printers and readers every second.The data is stored on a SQL database so i need to read and write in the database.Can i do this with 1 PC and 1 programm or 1 PC and 4 programms that are runnning at the same time ?
View 2 RepliesWhat I'm trying to do is write a small program that copies a file from a USB to another directory so a program already installed on the computer can load this data.Usually copying files from one directory into another wouldn't be an issue.
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If possible i would also like to change the code i have written so it just loads January2009.txt from the "root directory" of the USB rather than having to specify H: because if i put the USB in someone elses computer this could change to G: and then it wouldn't work.
I have a small database program that gets data from csv file, I created a function that formats the font color of textboxes based on dates and values.
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I place this in text changed event and I have a problem implementing it, because the date conversion will not take place until the data is loaded. The second part works but not the first(Date) part.
I can create a button and use its click event to format the text boxes just fine, however i wanted the text boxes to be formatted on the fly . The problem is no matter where i call the function the date conversion wont work.
I have a small console application that writes the [TARGETDIR] from my msi installer to a text file.If I choose C:Program Files as the installation folder, it only writes out C:Program..What would you use so that it doesn't stop writing when there's a space? [code]
View 3 RepliesI'm trying to make a small database out of text boxes and text files, something where sql would be overkill, not to mention beyond my experience. I want to be able to write the contents of the text boxes to a file.txt (the easy part) then being able to retrieve them back out into individual text boxes. How would I pull this one off?
View 5 RepliesI want to put undo in a small program
View 10 RepliesI am trying to build a small program which will allow some one to click on the exit button and the sound will play and at the end of the sound the program will then close. The sound clip is about 3 seconds long Here is what I have:
Imports Microsoft.DirectX
Imports Microsoft.DirectX.DirectSound
Public Class Form1
Private Dsound As CSoundDevice
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I have been trying, without success, to get rid of a �Blink� at the start of a small program.
My program opens with a title page (Form2, which is visible at 100% Opacity) that I want to fade after a few seconds, this works fine except that at the first reduction of opacity, Timer1's first 'Tick', the whole of Form2 blacks out for a moment. (Blinks)
I have a short demo program to show what I mean but don�t think I can attach it to this question. The code is shown here but I don�t know how to include Form1 and Form2. They are very simple however, they�re both Size 1000,600
Form1 has a single Button (Exit) and a Timer; Form2 has a full-size photo as background.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I developed the code on a XP machine, but I also get the same 'Blink' on my Win. 7 Pro machine.
i am trying to make a small program to encrypt files using AES, and then have the password from the AES encrypted using RSA for its use of public keys. i've got the AES part working fine and i found a good RSA tutorial here url....but after i encrypt the AES password (which is saved in a .txt file) using RSA, then i try to decrypt it again, it comes out as an empty .txt file!
View 4 RepliesI created a small program which one uses the SQLite database. I have a simple table employees, composed of the name and password. I can not write sql script correctly. application code is:
Imports System.Data
Imports System.Data.SQLite
Public Class Form1
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
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I have created a small test program for faxing.On some machines it works and on others it throws the following COM error when trying to send the fax:[code]Here is the source code from my test application.All it requires is a reference to FaxComExLib.[code]
View 15 RepliesI have almost completed a translation from C# to VB.NET, however, I run into some small errors[code]...
View 1 Repliesim new to these forums and was working on a small program to change the school wallpapers. i want the user to be able to choose the imageand not have to put it in a secific directory could anyone please advise me on how to do this
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I made a small program which just is one window(frame) i want to put this prog. in my PC when i restart my computer this window display.
View 11 RepliesI are trying to write a small program for iTunes using Windows COM. We are able to talk to iTunes and create popup boxes that show the current track, and a few other small things. However, when we try to set this info to a Label for example, we get:
InvalidOperationException was unhandled by user code Cross-thread operation not valid: Control 'Label1' accessed from a thread other than the thread it was created on.
The program then hangs and locks iTunes from closing. I believe the issue is the event handler I have created, which I know very little about. We are using VB 2010, so that may change some things. We followed a rough example from a forum post HERE. If you scroll down the orange text, you will see a reply right after by Will Hughes with a "Handles iTunes.OnPlayEvent". If I add this to the end of my event handler, I get:
Handles clause requires a WithEvents variable defined in the containing type or one of its base types. Not sure if its important to the issue or not, but I found it curious. Our code is shown below.
Imports iTunesLib
Public Class Form1
Private iTunes As New iTunesApp
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i have written a small program to set wallpaper on the desktop when i change the wallpaper then if I refresh the desktop then problem is that,wall paper is disappeared and a blue screen comes.secondly i want few changes i want to set wallpaper as Tile,Center and stretch i want to use radio buttons on the form for this purpose so how can i make these changes.
View 1 RepliesOn form 1 , i have a number of buttons that open up different websites.What i want to do is when i click a button on form 1 , i want forum 2 to show ( Form2.show() ) , Form 2 will have a list (Buttons) of internet browsers.
View 4 RepliesAnyway, I'm a teacher and am writing a program that simply shows kids a word on a flashcard. There are 2 buttons, 1 to read the word and 1 to go to a new work. There are going to be 300 words. Really I'm just testing it right here. What I want to know is should I be inputting all the words right into the code like I did with "hi" and "not 1" (Don't ask. those are just the 2 random words I picked to test this out with). OR is there a better way (maybe somehow to type all the words on a text file and have the program randomly pull one of them (I don't know how to do this).
Here is the code so far:
Public Class Form1
Dim word
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I have a program where a lot of the required information for it is stored in text files. I simply read this information into large arrays. However, I don't think it's necessary to load all the information each time. Rather, it would be more efficient if I could simply search through a list of items to find the one I need and then use the data from it, or to find a similar name and use it elsewhere.
Would I be right in using a database? And is database programming done in SQL? I have a book on it telling me to use the SQL Server (IIRC), so I shouldn't be doing it in the VB.NET Express GUI?
Here's an example of what I would do:
Hex = 03 00 => dex number 003
Search in file Pokemon Dex Numbers
003 returns Bulbasaur
Check Bulbasaur base stats in the base stats file
etc
So basically I'm reusing a lot of information. I think a database would be best and it would all be internal right? I'm getting complaints about access denied to a text file (since it's stored in the program directory in the program files).
So to cap up the few questions I have:
-Databases are done in SQL and not inside the GUI?
-Databases would load internally?
-I could search a database without having to load it into like an array or something?
I am attempting to make a small program for my church to power on and off the projector According to the user manual I need to send the following to it. Power On: C00[CR] | Like so: "C" -> "0" -> "0" -> "[CR]". However I am getting the following error when attempting to turn it on by the program: Conversion from string " " to type 'Byte' is not valid. [code]
View 14 Repliesm using Microsoft Visual Studio Basic 2010 and im fairly new to it. Im trying to make a small program for feedback and send it to my e-mail. I have seen e-mail sender tutorials on youtube but thats not really what I am looking for. Im looking for it to be automatically sent to me, not having to type in "To" so as if its hidden I guess. So Basically
View 2 RepliesI need to set up a small program/script that can test simple web functionality.I already have a window that automatically load the right URL. What I need now is pointers to how I can make that program return a code if it can load the site, then automatically log in to the site and return a code if it is able or not to log in. Then log out, wait for five minutes and then refresh the site and run again.
View 2 RepliesI am working on a small personal database management program and am at the stage where I am trying to search the MS Access database given a user input.I need to look up lets say the "customer" ID and the update other records associated with that customer. Here is what I have so far.
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I am trying to write a small program that shows a clock using a timer in vb.net, I want the clock to display the time and date as a binary display i.e. if it's 10:01:21 the clock would display boxes or buttons in rows going from 1 to 2 to 4 etc upwards and changing colour when at certain times. the example time above would be a button for 8,a for 2 to make the 10 o'clock, a button for the 1 minute and a button for the 16, 4 and 1 seconds making 21 seconds.
View 1 Repliesi am trying to create a small program that will calculate the miles between to postcodes.The way im doing this is to fill out a webform for each postcode and collect the returned Long/Lat values (i will then calculate the miles from that)
This all works well until my program freezes with no error message. It's after the same number of records as well and I don't know why.[code...]
I have this Quiz software that lets you create online multiple choice quizzes which are great for studying (I am in grad school and I'm trying to use everything I can to learn). So the Quiz software is great but it only lets you input questions by hand, one by one. I took a look at the .xml file that the quiz program spits out and came up with the idea to try and make a converter so that I can import many questions at once. I was hoping to try and solve this limitation by doing the following:
Take a .doc that say a tutor gives us with a bunch of practice questions, and then take that into Crimson Editor, and then format it so the question is on line 1, the multiple choice answers are on lines 3,4,5, and 6, (for the next question, the question would be on line 11, and the answers on lines 13, 14, 15, and 16, and so on) and then take that saved .txt file into my program, hit the generate button, and it will spit out the .xml file, and then import that into the quiz software to generate the online quiz.
Here is an attached screenshot of my program layout so far:
I figured out how to open a text file by watching simple youtube tutorials, but I don't know how to have it generate the stuff and have it show up in the bottom text box. I know how to do the coding to convert the txt to proper xml code but I don't know how to be able to save the contents of the bottom text window to an xml file.
Get Program To Read Text File And Display 2nd Line Of Text
View 6 RepliesI have made a small program displaying a string value coming from a serial device. When I run this on my laptop, then everything is just fine (VISTA OS), but when I run the same program on another computer (XP OS), then it shows some strange chars (Squares in distance number).
View 8 RepliesIs there any way to format text in a Label to be Small Caps (where the first character is Larger than the others, and all are CAPS)?
View 2 Replies