I am new to opening files and using "StreamReader", when I try to open up a file it displays all of the numbers as 0 instead of what they are, and I am not sure where my mistake is.Also I am pretty sure I did not do saving right either..Imports System.IO
Public Class ClassAverage
Dim fileWriter As StreamWriter ' writes data to a text file
Dim FileName As String ' name of file to save data
[code].....
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.
I'm new to Visual Basic.net, I've had some experience with ye old visual basic however. I'm wanting to make a quiz app that reads the contents of a text file, with about 500 multi-choice questions in it. It is in the following format QUESTION NO: 1 This is the question, what is the answer?
A. This Answer
B. Or this Answer
C. Maybe this Answer
D. Or this Answer
Answer: D
QUESTION NO: 2 and so on. I would like it to display the question number in say...a textbox, along with the question and the multi-choice. And then depending on user input, says correct or incorrect.
I have two text files, the first text file has two columns separated by a space (" ") and the second text file only has one column.
The column 1 in text file 1 and text file 2 match albeit in different order, what I'm trying to achieve is for every field in column 1 text file 2 I want to search for column 1 in text file 1 and display the matching column 2 field in column 2 text file 2.
Dim*OpenTextFile*As*String*= IO.Path.Combine("C:Test1.txt")
Dim*OpenTextFile2*As*String*= IO.Path.Combine("C:Test2.txt")
Dim*SaveTextFile*As*String*= IO.Path.Combine("C:Test2.txt")
[code]....
I have a program that can save user's input into a text file and load it back, but whenever I try to open the file and exit without selecting the file I get an error.(if i select the file and open it i don't get any errors).
This is the code that handles text file loading:
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
OpenFileDialog1.InitialDirectory = "C:"
OpenFileDialog1.Filter = "Text Files ONLY (*.txt) | *.txt"
OpenFileDialog1.ShowDialog()
[CODE]...
The error is :"FileNotFoundException was unhandled. Could not find file at xxx". also I would like to know how to make it so that the initial file name for file saving is today's date. I do not get any errors when I try to save the file.
Ok what i want to do is have a user specify a directory when this for is opened and have it remembered everytime this for is open,Also i have a few buttons and whenever the user clicks on one of the buttonsa i want it to open a txt file delete everything in it and write a value that i specify
View 9 RepliesI have created a .wsf file which on opening executes some functionality. I need to open this file in vb for my project to work, but i don't know how to do this.
View 2 RepliesCurrently I am opening a file via this
Dim myStreamReader As System.IO.StreamReader
Dim SourceString As String
myStreamReader = System.IO.File.OpenText(txtInputFilename.Text)
SourceString = myStreamReader.ReadToEnd()
Sometimes the file I am opening is quite large and I am wanting to have a progress bar displaying the progress as I am opening/writing to a file.
I need to be able to view another programs chatlog while it is running. this is the existing code. right now for testing it just reads the first line of file. this reads the file just fine as long as the other program isnt running but if it is running i get an error stating that the file is in use by another process. I'm using vb 2010 express.
[Code]...
I want to write some stats to a text file every time a person loads a page. But every once in awhile I am getting at 'Could Not Open File, Already in use' type of error. I can not 100% replicate this error it is very erratic. My code is
Public Sub WriteStats(ByVal ad_id As Integer)
Dim ad_date As String = Now.Year & Now.Month
Dim FILENAME As String = Server.MapPath("text/BoxedAds.txt")
[Code]....
how can I lock and unlock the file so I stop getting the erratic errors?
I have done some work in VB 2010 for school and the schools computers have VB 2008. is this going to be a problem? if so how can i fix it so i can open the work in vb2008 because thats where it will get marked.
View 2 RepliesIs there a way to delay the start of a text file? I am using this to call the TXT file after clicking a button: (opens txt file)
Process.Start("text.txt")I was wondering if there was a command to delay the TXT file from opening for a number of seconds?I use this to delay the Splash Screen: (delayed 5 seconds)
Threading.Thread.Sleep(5000)Is there something similar for TXT files??
[code]I'm trying to make it when the button is clicked it opens the txt file that is in the resources.Any idea on how to fix? I keep getting this error.Value of type 'String' cannot be converted to '1-dimensional array of Byte'And another question I had was, How do I get it to open lets say...Open the txt file IN it's own folder?
View 2 RepliesI'm trying to get my Applications title bar to change the text once the user loads up a file. So far I have gotten it so it will load up the File name into the title bar, but I would like it to show MicroText - OpenFileName... OpenFileName being the name of the file that was opened.
CODE:
I have been working hard lately to build a database and well i have been experimenting with SFD, OFD and lately Streamwriter. I have finished and got streamwriter working as i want it to but know i need to be able to open the text file where all the data is stored into the one label, and not have certain pieces of text.I have attached a example of what the writer makes. The text which i would like removed when i open it is indented to the right
View 29 RepliesI have created a text editor that enables the user to create and open both txt files and rich text files.When it comes to opening files, the text files are opening fine, but when it comes to rich text they are opening like this
{
tf1adeflang1025ansiansicpg1252uc1adeff31507deff0stshfdbch31506stshfloch31506stshfhich31506stshfbi31507deflang2057deflangfe2057 hemelang2057 hemelangfe0 hemelangcs0{fonttbl{f0fbidi fromanfcharset0fprq2{*panose 02020603050405020304}Times New Roman;}{f34fbidi fromanfcharset1fprq2{*panose 02040503050406030204}Cambria Math;}
[code]....
Hi, i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated.This is the code im using right now:
Private Sub TreeView1_NodeMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Select Case e.Node.Index
Case 0
[code]....
Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
I am programming the Save File Dialog Box. I've got the basic code but after I save the text file that I created, the actual text itself seems to have disappeared when I open the file.
View 2 Repliesi'm having trouble opening a text file to process and order the data in it. When i try to read the first line of characters an error message occurs saying: 'Variable words1 is used before it has been assigned a value.' I dont understand what i am doing wrong when opening the file. Also, I am sorry if this is a rather basic question.
[Code]...
I'm having some trouble using resource files. In my project I'm using a bunch of bitmap files and two txt files. Bitmaps are used as backgrounds for controls, but .txt files I want to open in Notepad or WordPad. Till now I was accesing them from a file path on my machine:
ControlName.backgroundimage = New Bitmap(direcorypath & "/Map.bmp")
Process.Start(direcorypath & "/Instrukcje.txt")
And it worked fine. Now I added these files to my resources (it's practical for me to have them in executable file) And replaced those lines with:
ControlName.backgroundimage = New Bitmap(MyProject.My.Resources.Map)
Process.Start(MyProject.My.Resources.Instrukcje)
For bitmap it works fine, but for txt file an error occurs saying that a file cannot be found.
Interestin thing is: when I type "MyProject.My.Resources.Instrukcje" in "Watch" it shows the content of the file. So it is there, only not as a file?
I have the following code used to enter the name of a text file and then display it in a richtextbox. This is working but I would like it so that I could take out the initial part of the filename detailing the location of the filename to simply set it to the project folder, is there any way of doing this using the App.path function?
My code is as follows:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
Dim excel As New Microsoft.Office.Interop.Excel.Application()
Dim wb As Microsoft.Office.Interop.Excel.Workbook = excel.Workbooks.Open(txtFileLocations.Lines(w))
Dim ws As Microsoft.Office.Interop.Excel.Worksheet = TryCast(excel.ActiveSheet, Microsoft.Office.Interop.Excel.Worksheet)
when the program tries to opens an excel file, it always throws me an error "Office has detected a problem with this file. Editing may hard your computer" and my program crushes.......The problem appears on the SECOND line, on DIM wb...blahblah.. i went to the office and unclicked the "protected view" checkboxes.. but it still throws me those errors. my guess is that the office i have in the computer is not the same as the one that my program uses to open excel files (i mean, i loaded/imported some excel.dll files in the program so i guess that will be the one) But how do i make the program not care if the excel file is "potentially dangerous"?
[Code]...
when the program tries to opens an excel file, it always throws me an error "Office has detected a problem with this file. Editing may hard your computer" and my program crushes. The problem appears on the SECOND line, on DIM wb.
[Code]...
I would like to be able to have my users open an Excel file and include their add-ins they have installed and usually show up when Excel normally starts. Using this code, Excel opens with no add-ins visible:
vb.net Dim excel As Microsoft.Office.Interop.Excel.Application
Dim wb As Microsoft.Office.Interop.Excel.Workbook
Try excel = New Microsoft.Office.Interop.Excel.Application
wb = excel.Workbooks.Open(filelocation & "checks.xls")
excel.Visible = True
[Code]...
Is there a property to allow add-ins when opening an Excel file?
i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated. [code] Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
View 3 RepliesI am reading file with text contents on it.sample dictionary.txt contents:
aa
abaca
abroad
apple
Snippet A:
Dim path as String = Server.MapPath("dictionary.txt");
Dim dictionary() as String = {}
Try
[code]....
Basically, I want to make sure that I can handle/prevent this error.Does Snippet B, solves the problem, if not is there other way so that I can prevent this error.BTW, this a web application and I am expecting multiple users.
I have created a picturebox in a form that I want to click on and then it would send me to a excel file that I already have created. I don't know if it is even possible. Do I need to use a button instead?, or am I just way off all together.
View 2 RepliesGet Program To Read Text File And Display 2nd Line Of Text
View 6 RepliesI have a label that is supposed to display a word for 5 seconds and then move down the list in a text file and display the next word.I'm oddly able to make it work in random mode, but not going down the list in order.. random would be ok if used words didn't come up again.
Code:
Dim DurHold As String = My.Computer.FileSystem.ReadAllText(Application.StartupPath & "FlashWords.txt")
Dim DurDelimiters() As String = {vbNewLine}
Dim DurTextLines() As String = DurHold.Split(DurDelimiters, StringSplitOptions.RemoveEmptyEntries)
[code].....
I am trying to set a program that save information to a file(store number, state and name. Then once user put store number and click display it shows the founded result in each box. like state in statebox and name in name box. This is my code so far
for the display button
Private Sub displayButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles displayButton.Click
Dim file As String = ""
[Code].....
