Reading Text File With Multiple Programs
Jul 16, 2011
I have a program that, at present, reads a set of global variables from a text file. The program is on the client machines (around 100 clients). My problem is that when it comes to the update of the variables within the client program an error sometimes appears stating that the text file could not be read as it is already open (by one of the other machines). Currently I am cutting it down so that only 30 machines read from the single text file, although I am still going to get the error occasionally. Any ideas (apart from catching the error, and trying to read again until it works). Maybe another way to store the variables?
View 3 Replies
ADVERTISEMENT
Aug 15, 2009
how i can read multiple lines from a text file to a variable that i can process individually later. Each batch needs to be stored so that i can modify them and then recombine them into a file later.So each "group" starts with the line that begins with 5 and ends with the line that begins with 8, no if we can store the line great, if not then output to a tmp file and merge after completion is ok too.. not sure how to best handle it (hence why i am posting here)I was looking at doing with Regex but this is way over my head right now. So here is what i need to do, and below is the code that processes the groups... not sure how to read the batches in first:So from this input:
101 129984776 12239022378970495730475347 NATIONAL BANK clark county cred
5200HEAVENLY A133016 1880467884PPDPAYROLL 080309090807 1122016060000001
6221224007799238298775 0000201175A13399 $TAX COMPANY 0122016060000001
[code].....
View 2 Replies
May 30, 2009
I am trying to select Multiple files and then read the file 1 by 1, i want to know how to specify the file number in Visual Basic .net 2008
Here is a sample code which i have used in reading the text file.
With dlgOpen
.Filter = "txt Files (*.txt)|*.txt"
.Title = "Open Text Files"
[Code]....
Actually my text file is a dump file and i need to make a program to process this dump file. I may ask some stupid questions but this is just a beginning, i want to parse INDIVIDUAL text file line by line. In the above code i have used the ReadToEnd function in order to display it in TextBox but i may use ReadLine Function or Read function to read line by line or characters respectively.
I have attached an Access Database with the predefined tables in it, I want to update the contents in Access Database. Supposingly if my textfile contains Names (Sam,Julie,Joseph,Marina), how will i update my attached Access table in vertical order !
View 1 Replies
Nov 25, 2011
im trying to make a program to broadcast news on instantly.
It will have Admin interface and User Interface (6 admin users) and (50+ user interface users) Admin interface will have a text box which can be changed and a button which puts changes to the text file User interface will have a text box which auto updates when the text file has changed When the text file has been changed the file system watcher will start which will then re obtain the text file from the path
Below is how the text file writes to the file when a button is pressed
Dim objwriter As New System.IO.StreamWriter("\Svcedfp01Service_Desk$Incident Handling TeamDIHLTESTmajor.txt")
objwriter.Write(majortxt.Text)
[Code].....
View 1 Replies
Jun 15, 2009
i'm currently making a client database program for work that stores data in multiple text files (so that the information won't be confused as to which info belongs to who in the database). Each client has his/her own text file, which isn't really a problem although i realize it's a bit messy. A listbox holds items, each item a person's name.When the listbox selected index is changed, the streamreader opens the corresponding textfile, which is as such: "John Doe.txt", and populates the correct textboxes with the information stored in "John Doe.txt".What I'm unfamiliar with is implementing a search function.
1. search query entered
2. streamreader reads through all txt files in a directory looking for matching keywords.
3. if a match is found in a txt file, it looks at the name ("John Doe.txt"), gets the corresponding listboxitem, and finally, once the textboxes have been populated with the info in the file, highlights the matching keywords.
4. then i figured if there was more than 1 match over more than 1 txt file, you could repeat the process and skip to the next match via the tab key (like the find feature of a WebBrowser or other such application).
What i don't understand is how to read multiple text files, search in keywords, highlight the matching keywords, or the tab function..I know that's a lot to ask on a forum, but I had nowhere else to turn.
View 4 Replies
Jan 17, 2011
Lets say you have a few text boxes, I know how to save the information in each box to a text file, but that creates a file for each box. Is it possible to save the contence of lots of different text boxes to 1 text file, and then when loading them it would load it all back to the right places?
View 9 Replies
Jan 2, 2010
I am working on a project in VB 2008 and need it to do this:Read first line from text file (using Openfile)Enter line into textbox on formDo some other codeThen Read second linefrom text fileEnter line into same text boxand loop until we have gone through text fileI am not sure how to read line by line from text file then enter it in textbox. I can open the Openfile and get the filename and everything, but I just am not sure how to read from it or enter that line into the textbox.Here is what I have, its not much but its a start:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileReader As StreamReader
[code]....
View 4 Replies
Jun 10, 2009
I have this problem on reading multiple root elements from xml file to vb.net. how can i code it in order for my code to display all the root elements? here is my xml code
[Code]....
And also how do i do it in a way that I can select the firstname from second root element?
View 14 Replies
May 20, 2009
So I'm in the final stages of finishing a program I've been working on for nearly a year now, and this is basically my final hurdle. The Save dialogue is working beautifully, with 'flags' in order to switch it over from the regular input into text boxes to the Listbox input protocol.
However, I'm having a *** of a time getting it to take lines from the text file and put them in the proper text box. Here is an example file:
Quote:
SHOWNAME
CALLNAME
BREED
[Code]....
So with the sample file I provided above, in the textbox named callNameText would appear "SHOWNAME", and so on and so forth. With this build, I get a NullReferenceException on the "Me.Controls(strboxNames(i)).Text() = strAllText(ati)" line.
View 1 Replies
Feb 16, 2010
I've been writing a weight program for flooded pressure vessels and I'm having trouble retrieving the data from the text files I've been saving. I know how to write the data to the text file, but retrieving it with OpenFileDialog is not so easy for me.The user has individual text boxes that they input strings or numbers into and when they save the file, each text box input is written to one line in the text file. For example, the first text box is for the username, therefore the first line of text that is saved is the person's name, the second text box is the customer, thus the second line in the text file is the customer name, and so on.
(Actually, the first line of text in the saved file designates whether English units were used or Metric units because when the user retrieves the saved file, English units will open one form and Metric units will open a separate form, so some If...Then statement will need to occur).I need to be able to read the first line, have either my "EnglishForm"form open or my "MetricForm" form open, and then have each subsequent line of text be displayed in their corresponding text boxes. I know I need to use ReadLine or LineInput, but I don't have a clue what to do.Assuming the syntax I've displayed below would just magically work (if only life were that easy), it would look something like this
If FirstLineOfTextInFile = "English" Then
EnglishForm.Show()
ElseIf FirstLineOfTextInFile = "Metric" Then[code]....
And so on...I read a lot of articles from the MSDN library and exhausted each link that I've looked through from Google and Bing, but most only retrieve data from the file to a single text box through some loop or streamreader and don't take into account multiple forms.
View 17 Replies
Jun 25, 2010
I'm trying to read a text file that contains info like this:
ACX-101-011 , J2168
BTXR-130A-013, D6733
AJ4-233-614, T8211
I want to split each line at the comma and write the left side to a textbox and the the right side to another textbox. I'm close, with the code below, but I can only post results from the first line in the file. How do I loop this and append the text results in each of the textboxes.
Dim TempFile As String
TempFile = "temp.txt"
Dim sw As StreamWriter
[Code].....
View 2 Replies
Jan 12, 2012
I currently have one VB 2010 express program that runs on my machine,It tracks machine run-times so I can't shut it down. The problem is now I have a new project to write and when I go to debug it, the currently running program pops up and I cannot debug the new project. Is there something I am doing wrong, or does the VB express environment prevent more than one instance of the runtimes from running?
View 2 Replies
Apr 4, 2011
I have a checked list box that is populated with the text from a text file. I started off with this code:
Dim FileToLoad As String
FileToLoad = TextBox3.Text
Dim fs As FileStream = New FileStream(FileToLoad, FileMode.Open)
[code].....
View 3 Replies
Jun 14, 2011
I am trying to import a TAB (NOt comma) delimited text file into a DataGridView. The following code works fine if I have a comma separated file. All I have to do is change the FMT to "Delimited".It just does not work with FMT=TabDelimited. All columns are read into single datatable column. The text file is ANSI text and I have double checked to make sure Tabs are tabs and not spaces, even exported a sample Tab Delimited file from Excel.Can this even be done using Text Driver? [code]
View 2 Replies
Nov 20, 2010
How do I play a WAV file while the computer is reading aloud a text file? It uses Text to Speech synthesis and I need a laughter wav to play when the computer comes across something funny in the line.
View 2 Replies
Dec 15, 2010
I'm a little new to VB, and I'm in a class for it, but I'm trying to do something we aren't going to learn in the class (mostly out of sheer interest) and I need help. I'm trying to read lines from a text file into a listbox, each line representing a new item on the listbox. For example, if the text file reads: [code]I want to be able to take that as is and read it into a listbox, where those words would appear in the exact same fashion; as a list, each as separate items. I've looked at the Help stuff and learned (sorta) about delimiters... but the thing is I don't want to write my entire list in a continuous line separated by commas--I want it to keep reading each line, and moving on to the next, until there are no more lines left. I am thoroughly stumped, and would appreciate it SO much if someone could help. For a frame of reference, this is the point I'm at now with my code: [code]Note that when I run the program, all it will do is read the first line of text available and stop; once I press ENTER in a text file, it decides to stop reading.
View 2 Replies
Jul 30, 2009
im trying to read a online txt file and its not working [code]but it has a uri error i think in doing it wrong but need help with how im doing it wrong, all i want to do is read the text from a file online not from the system should be easy.
View 1 Replies
Jul 4, 2010
Usually, the text file that would need to be read and processed would be local (on the computer the program is run), but for this example, we need to get the data from an online text file.
I have searched on google for nearly an hour now and haven't found anything of any real use. One of the earlier projects we submitted used a similar target, and I managed to get it working fine, however I dont have the original source code with me and I cannot remember how I did it.
I believe I used a Net.WebRequest method of some sort, because I had tried using StreamReader and ended up with an URI error or something like that.
View 7 Replies
Jul 17, 2010
I have just recently been using VB 2010 after using VB5. I have noticed a lot of changes. The problem I have is that I wish to open and save text files to and from arrays in the background. I've attached what I would do in VB5. I have searched around, but all the examples I find use a Textbox instead of an array. Can anyone show me how I can do this with VB 2010?
View 1 Replies
Nov 2, 2011
I want to read the text file and check whether its contain the specific string or not at the end of the text file. If it doesn't contain the specific string, I want to append the text file to write the specific string.. Can I use this code? But its not working..What is the problem actually?
Dim line As String = ""
Dim fileName As String = "C:\Drill Blind.txt"
Dim sr As StreamReader = New StreamReader(fileName)
[code]....
View 13 Replies
Jan 25, 2010
I have a fixed width delimited text file, the data spans over several line. I do not know how to approach in reading this file and displaying its results to a gridview.
[Code]...
View 11 Replies
Nov 29, 2009
How could i echo individual lines?, Like for example if i want to echo the hostname line, How could i just echo 'Christopher's Testing server', and not the hostname part too?
echo Executing Server Config...
lanmode 1
rcon_password changethis
password password321
maxplayers 20
[Code]...
View 6 Replies
Jun 10, 2011
why this doesn't work?
Public Sub LoadFile()
Dim file As StreamReader
Dim temp As String
[code].....
View 7 Replies
Apr 30, 2010
got this code where users created txt file with email address and password [code]
View 2 Replies
May 29, 2012
I want to know how you would read in from a text file line BY LINE with timer and put it in a Listbox. Lets say I want to read this text from text file
1234232123
12342321
234223423421
23423233
Now i set the timer interval 300 and debug, i expect this to put each number in the listbox. I tried doing this but i failed
View 4 Replies
Jun 26, 2010
I want to check if a textfile is in a CD, read the file, and if it contains the text "blahblah", do something. If it doesn't, MsgBox("Error!"). :P I only know how to open and close the CD drive. >_<;
[Code]...
View 1 Replies
Oct 2, 2010
In the past few weeks, to speed up our database freshening process, I've created a couple of extra programs, basically copies of the exe file. The program itself, accesses web pages, images etc and uses threads to do so. The second program uses LIMIT 300,100 and the third LIMIT 600,100, to make sure they don't work on the same records.
Before the last few weeks, one occurrence of the program used to run without problem, from the task scheduler all through the day. Only one occurrence of each exe can run at a time.Since theres now three programs running, .net 2.0, on xp, the program often seems to get stuck and never ends. I have to kill it from task manager.
It runs fine in the IDE I just wonder if there would be any benefit from upgrading to vb.net 2010 ?
View 1 Replies
May 17, 2011
Since ADO.Net uses a 'disconnected' model where the data available to a single program is just a copy of what is in the database, what is the normal way to handle multiple programs needing to update the same table in a database? The problem I see is that a program can't update unless his copy of the data is the most up-to-date. Are we supposed to read before updating and hope that the update occurs before someone else changes the data?
View 2 Replies
Jul 27, 2009
I'm planning to make multiple projects, which could connect (or comminicate) together. It's like a designing Network Program. There'll be a main program and some sub programs. These sub programs will send the informations about other computers which is on my network to the main program. If you ask "Why do you need to get infos about other computers?" ,then let me explain. I'm using limited internet connection and I'm not the only one who's using this wireless network. If I get over the limit, I'm paying some limit-upper fee. So, I've to control others internet usage to not to get over the limit. I've just made a small download counter program for my pc, but as I said, I want to convert it to a bigger project, with network solution. Could anyone refer me any resource, or show me any starting point?
View 4 Replies
Feb 26, 2012
In my project i read text file line by line by checking with a specific word and store that line into textboxes.
My code id
Dim fName As String = " Z:\rdf1.txt" 'path to text file
Dim testTxt As New StreamReader(fName)
Dim allRead As String = testTxt.ReadToEnd() 'Reads the whole text file to the end
[Code].....
View 3 Replies
