I have a 'next' button which changes the questions when clicked. How do i make the questions keep changing to another question from a file with only 1 button when clicked and also display it on a label with 4 radio buttons with answers in vb. I always get an error " Cannot read from a closed text file "
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A text file exists on my server machine which is constantly being updated (about once about 5 seconds). On my web page, I'd like a div to display this file live using jQuery inside MVC.
I have the jQuery timer working already, but the file isn't displaying. My plan was to get the jQuery to load a Controller Action every 5 seconds and have this action return a FilePathResult.
The script:
$(function () {
var streamer = $("div.wrapper div.streamer");
//===
[Code]....
LiveStreamPath contains the path to the text file. I was thinking of creating a StreamReader in the Action instead. What sorts of implementations can I use to get this file to stream?
I have one combobox, two buttons (Add and View) and listbox. When I click button Add text from combobox is added to text file. This is code for Add button:
[Code]...
I want to know how I can take a regular avi, mpg, wmv, etc... with out a streaming server or a streaming file, and not downloading the entire movie Play it with windows media player or a different media player, oreven a custom one.
View 2 RepliesI have following code:
Dim fs As FileStream
fs = New FileStream(path, FileMode.Create)
Dim sw As StreamWriter
sw = New StreamWriter(os)
sw.Write(something)
sw.Flush()
Is this a correct way to do this? Do i need to put in some checks to see if file exists?
Does anybody know how to import a certain line from a text file into a label in vb 2008? I'm using the Imports System.IO property.I have a custom text file and i want to bring only a certain line from it back to my vb program. How do i code this?
View 1 RepliesI'm not really sure how to word it, if it is possible, but part of my program reads from a text file. It then pulls out the necessary information needed from that file by finding key identifiers. Right now the code is written to find the first key identifier and then read each line after that, locating each subsequent identifier and pulling the data from it. In a few cases, the format examples I've worked with are a bit different which results in a runtime error. How can I tell the program to essentially skip that part of the text file if it's not reading it right and continue moving on? Here is somewhat of an example of the text file.
DID/"DATA EXTRACTED HERE"
NAM/"DATA EXTRACTED HERE"
STR/"DATA EXTRACTED HERE"
[code].....
I have a txt file that I need to read into a listview, but I need to read from a specific line in that file. Below is a sample of the txt file to read,
6400,3200,2,95.5,84,76.6,0
1,2,-20,15,0,0,0,"NO",0,0
TOTAL GPM= 6400 HWT= 95.5 CWT= 84.0 IWBT= 76.6 ALTITUDE= 0
CODE]...
I'm a Year 12 student studying my HSC. I'm studying Software Design and Development (SDD) as one of the courses, via correspondence. As a part of SDD, we have to learn Visual Basic.NET 2008. I'm currently in the middle of my major project (20% of my final grade) which is due Sunday week. My entire program was all good to go until yesterday night when a classmate pointed out that the teacher might have modified the marking criteria or he was expecting this but it wasn't explicitly stated until last night [code]...
View 3 RepliesReading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
I got an text file that record data, and I need to read the data and do some comparisons. All data read will be showed in a form. If the data is fail, I need to show an alert to the user and wait for user to respond. If user responded to the alert, the program will continue to read data and do comparisons. The issue that I'm facing is that I don't know how to continue read file from the last read point.
View 19 RepliesI am reading a large number of XML files and do not want my program to bomb on exceptions. I am making great strides in reporting the errors, skipping the offending files and continuing the import process. However I am having problems with XmlExceptions. I get the following XmlException on the While textReader.Read() line of my program:
Quote:
XmlException was unhandled
Unexpected end of file has occurred. The following elements are not closed:
my:PicInsert, my:PictureGroup, my:myFields. Line 153, position 430817.
I am finding some of the reasons why, missing tags etc, but those aren't really my concern. I just want to report the issue and continue. I am thinking about some kind of check for a valid xml file but fear that that might not catch it all. For example I had a image tag in one of the files that was missing an alt="" attribute and I am not sure if that would invalidate the entire XML file.What would be the best way to trap and deal with the exception with out causing interuption to the program?
So I am having a situation where sometimes my code will error saying the file is already open (the text file). It happens randomly, and I'm assuming it's the computer hanging. Is there a way that I can make the program "wait" for the file to close?Here is the code that I am working with:
[Code]...
I have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
[code]....
i am working on read line by line . At each line that my app read , i added a event . How do i read a text file till the end and Stop it? there is how it work :
[Code]...
I am learning Visual Basic and I have learned alot of it from the learning section included in Visual Basic Express Edition 2008 but I don't think I have learned alot. I am actually trying to make an extractor and importer for a game. I have the file called Frontened.MNG and I want to make a program that can open the file. Someone else had made the rxtractor but he doesn't have it now. The Frontened.MNG file contains bunch of .DDS files and I want to view them in the program and then be able to replace the .DDS files in the >MNG file and be able to Extract the files out of the .MNG file. I don't just want anyone to do it for me but teach me how to do it step by step. First I want to know is how to view the .MNG file in VB? It should be viewed in a listbox but I don't know how to read this file in VB. I know how to read a text file but I think this is a binary file and it is viewed differently.
View 6 Replieshow to do this for vb6 however i am using vb 2008 and the code for vb6 does not seem to work.
I have designed a form with a text box on it, and a command button underneath. The idea is to run this as a sort of stiky notes section.
I want the text box to read rich text into the textbox (C:\\stickynotes.rtf")
Then i have a command button underneath which i want to save the content of the rich text box to the rtf file (C:\\stickynotes.rtf). This is so that the user can edit and ammend information.
here is some code i have so far
Dim fileReader As System.IO.StreamReader
fileReader = My.Computer.FileSystem.OpenTextFileReader("C:\\stickynotes.rtf")
im trying to have the user press a button and a window pops up to select a file. then it reads the file and puts it in a text box. how could i do this?
View 1 RepliesI'm trying to make a program in vb 2008 that is like a Quiz that reads questions from a different file and displays them in a label in the program. The program also reads 4 multiple choice into radio buttons. There is a next button that switches the answers and questions (reads them from a file) and displays them onto a label.
View 5 Repliesis there a way to make VB 2008 read a text file of digits eg:
56154131313313
31231212121211
12534645456464
44564545454787
and import it into vb, splitting it into four digits and putting each set of four digits into a different text box.
I am trying to read/write a simple text file in net 2008 but can't, as yet, get it to work. This is how I use to do it in VB6
Code:
MyStr = App.Path & "DataData.txt"
Open MtyStr For Input As #1
[code]....
I ran across my first unicode data, and I am not sure what to do with it. I read the unicode text from a binary file using the ReadBytes method, because ReadChars threw an exception when it tried it. Well, long story short, I have found a way to work with the data, I can convert it using a small Function I wrote, which goes something like this: [Code] And this works wonderfully. It just throws away anything not in the ASCII range, including the BOM at the start of the unicode data.
But I would guess that this method is not very universal and probably not the best way. Are there any VB functions available to do this sort of thing? I was able to find something called Text.Encoding, but there didn't seem to be a reverse of that not that I found anyhow. Any ideas?
how can I do the followingRead line 1 from text.txt file (C: xt.txt) Wich Is URLthan Webbrowser1.navigate( Line1 )Do something and continue loop for line 2, 3, 4, 5, etc..
View 6 RepliesI need to read one specific line of a .txt file.. How do I do it?I don't know what item will be there so I can't search for a specific letter... It will be a textbox text.But I know that it will be the 3 line.Originally Posted by ExampleLorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla rutrum risus et ante tempus pharetra. Integer lacus felis, interdum non elementum in, egestas et ante. Aliquam eget nulla sed lectus accumsan congue at dapibus massa. Etiam nisi arcu, vulputate nec venenatis sed, fringilla nec ipsum. Duis quam lectus, venenatis sit amet faucibus ut, eleifend at tortor. Proin dignissim he
View 5 RepliesIm trying to use File.ReadAllLines to read a DLL that has plain text. (the DLL is basically a text file) [code] The process cannot access the file '****DebugNewFile.DLL' because it is being used by another process.How do I use readalllines to find text? How do I use readalllines to only search a part of the text file?
View 4 RepliesI have created extension method which operates items in IEnumerable(Of T). .NET Framework 4.0 has new method File.ReadLines which returns IEnumerable(Of String). I got two implicitly typedvariables which operate on lines returned by File.Readlines.The first iteration goes OK, but when second iteration starts, program stops ancompiler goes to my extension method and points to ProcessFunction(item) with the following: "Cannot read from a closed TextReader".If I change data to data.ToList, then no error occurs. What can be wrong?
Here's code:
Module Program
Delegate Sub ProcessFunc(Of T)(ByVal item As T)
[code].....
Ok so I have a combo box that lists a set of names. What I want to do is match a selected name to a text file and read from it. The text file contains the same name and has grades listed below:
ex.
Johnny Bravo
30
10
i have 5 textboxes in a form. I have a streamwriter that writes all of their text to on text file like this:
Code:
Dim xfile As String = Application.StartupPath & "/Set.txt"
If File.Exists(xfile) = True Then
Dim writex As StreamWriter = New StreamWriter(xfile)
[code]....
I was wondering how to get the text under the each number and place it in the corresponding textbox.
I want my program to read certain text in a text file. For example if I have a text file that contains the following info..
acc=blah
pass=hello
I want my vb.net application to get that the account variable is equal to blah, and the password variable is equal to hello.
How can I write and read a string array to a text file?
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