As you will see from the code below I need to be able to tell before the array runs how many members of the array there are or else the program will crash. How can I redim the array depending on how many lines are in the text file (RECORDS.txt)
Imports System.IO
Public Class Form1
Structure Nation
Dim name As String
Dim continent As String
[Code] .....
As you will see from the code below I need to be able to tell before the arrayruns how many members of the array there are or else the program will crash. How can I redim the array depending on how many lines are in the text file (RECORDS.txt
Imports System.IO
Public Class Form1
Structure Nation
[code]......
I have an array declared:
[Code]...
This statement works fine in ASP, but when I switch to ASP.Net, it give errors 'ReDim' cannot change the number of dimensions of an array.
I have this recently converted application from vb6 to vb.net 2008. One of the errors stated is:'Point' is not a member of 'System. Windows. Forms. PictureBox'.I have searched and not found an alternative to this.Also, it says ReDim cannot change the number of dimensions in an array.
View 8 RepliesI have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
[code]....
The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
The code below is the entire class that has the error in it... the errored code is highlighted in red. The error is,'ReDim' cannot change the number of dimensions of an array.
Code:
Public Class clsMap
Dim SR As System.IO.StreamReader
Public Width As Integer
Public Height As Integer
[code]....
I'm upgrading my VB6 project to VB.NET and I found one of the problem below relating to dimensional array.Here's my VB6 coding :
Private Function ConvertMatrixToBase0(ByVal MyMat() As Double) As Double()
Dim i, j As Long
Dim ConvMat() As Double[code.]...
When i port it over to VB.NET, i encountered error message 'ReDim' cannot change the number of dimensions of an array. for the line highlighted in red. And I suspect that VB.NET need to always define the exact dimension of the array during the declaration. But for the function above, for the array of 'MyMat()', I do not know what is the exact dimension every time it runs, and that is why i need to check the dimension of the array.My question is do we have any solution in dealing unknown dimension array in VB.NET? As in VB6, we can just define Array() instead of Array (,) in VB.NET.
[edit]Sorry I left a bad title in this thread - confusing![/edit] Been a long time since I used an array - they are so limiting...But I need to build a simple string array - that I'm passing to a C/C++ function.
Is there any other way to do this other than keep REDIM PRESERVING??
[Code]...
Is there a way to see how many lines are in a text file? This also includes blank lines. I have seen a lot of code in this forum before related to my question, but they stop if there is a blank line. I want it to be so that if there are like 10 blank lines
View 1 RepliesBasically, every time an entry is made - all of the proper data gets put out to a central Listings.txt file and then a specific .txt file for that area. When the user enters the recall form, they can view the listings for all or whichever area they've selected. That works quite fine. However! We also need to include a summary of how many are in each section. Not thinking properly, I started to do this with a counter - until I realized that a counter will lose its value once the program shuts down. My current idea is to count the number of lines in the text file (it outputs 8 lines per listing, so everything would be in values of 8) and then divide that by 8 - but after some searching I haven't been able to find a piece of code that will allow me to get an integer that relates to the amount of individual lines in the file.
View 4 RepliesIm making a text based game that i need to randomly select different numbers of lines from a text file then pass them to a list box.[code]...
First the code needes to identify the 4th element then randomly select lines from lines that contain that element. The code needs to work out how many lines have a matching text to the 4th array then randomly select lines from that total no need for a maximum limit to that number.The same line must only been show the once at a time, but It can then be shown again on a different button click.[code]...
i want to delete few lines from a big text file , normally this lines are at the starting of the text file , so it is possible that i can enter the line no from input box and the vb.net can delete that particular line number from the text file ,
[Code]...
I'm trying to do is to read the lines from a text file, and transfer them to an array.[code]...
View 3 Repliesreading a text file into an array after a certain line in the text file, at the moment i am trying to do it using the method below: but i am having trouble thinking about how i can copy everyother line and also how i can count through the array the i = 0 and i = i + 1 are there while "i".
In a line what i would like to do:I need to copy everyother line for a known amount of lines that appears after the line " I FT I KT I " in a text file, but i do not know the position of this first line in the file.
Dim lines() As String = File.ReadAllLines(sessionsPath$ & "vmcg.afm")
For Each inline As String In lines
If inline.Contains(" I FT I KT I ") Then
[code]....
Im making a text based game that i need to randomly select different numbers of lines from a text file then pass them to a list box. The text file is made in the following format:
20058,v,o,ED,95
20059,v,o,TI,95
20060,v,o,TI,95
20061,v,o,SL,95
First the code needes to identify the 4th element then randomly select lines from lines that contain that element. Im stuck on how to randomly select lines from that list.This is the code i have so far.
[Code]...
I am adding line entries in a .ini file. The problem is, I am creating duplicate lines in the file, which I do not want to do. I searched this issue online, and the consensus is to use an array, loop through for duplicates and create a new file. However, being so new at this and teaching myself how to code no less, I am at a dead end. This is not a school project, it is something I am doing for work on my own time. I have all of my code done for the program except for this last step.
[Code]...
I am trying to turn data in a text file seperated by spaces into a 2D array.
It is for a math game. The data is statistics based on the performance of the user. One line looks like this "John Doe 0 0 1 3 0 6 0 22"
I need to put the line into an array and then be able to search by name to display the results. I keep getting extra spaces in the input of the array so the data isnt where it should be. It seems that the first entry works correctly, but appended lines do not enter correctly.
Sub ResultsToFile()
Dim FILE_NAME As String = "C:\Student_Results.txt"
Dim RecordString As String = NameForm.PlayerFirstName & " " &
[Code].....
I am using streamreader to read and streamwriter to write, I have put the lines into an array
[text file contents]
Remove [ ] *****************
-----
;this is -----
------
;this is another -----
[end of example file]
I want to remove the lines that start with "****" and keep deleting lines until i reach ";" I thought this would be simple but im missing something and I don't want to put this array into a listbox it is being writen to a text file.
I need assistance with posting lines from a text file (test scores) into an array. From there, I'll have to average the test scores, find the standard deviation (without using the built in function) and assign grades based on the test scores' deviation. I have already written the code for the user to search and upload a text file. And I should be able to do the standard deviation of the array, if someone can help give me an example of how to send the text file to array and average the lines of the array without using the built in math functions.
[Code]...
I have a windows form with a textbox and a button, what I am trying to do is enter a number in the textbox and when clicked on the button to cut and paste the data in to a new text file (from number 0 to the number I entered).ie, textfile 1 has 100 lines of data, I enter 25 and press OK I would like to take the first 25 lines and save them into a new text file and save the remaining lines in textfile 1 so it should be like textfile1 75 lines and textfile2 25 lines.The closest I've come to this is the following but this only deletes the one line..[code]
View 3 RepliesI want to put a function that reads a text file and put it in textbox1. I used this code to read the last line
Textbox1.text = Io.file.readalllines("C:c.txt").last
but I want it to read the third line.
I want to create a little program with textboxes in it, that writes the contents of these textboxes to a file. It also needs to write some predefined lines to the files, even on the same line as where the contents of the textbox is.
Heres an example:
The file should look like this when you open it in notepad:
^1::
Send t Text from TextBox {Enter}
First I think I would need to do this:
Dim ioFile As New StreamWriter("scripting.ahk")
ioFile.WriteLine("^1::")
If I do the above it works.. But how can I write another line where the "Send t" and "{Enter}" gets written automaticly before and after the contents from the Textbox?
I have a text file with user names in them on separate lines. I want to check to see if any of the lines doesn't match the exact text im checking for. It doesn't matter what line the text is on, as long as it is in there. If it's not, alert me. Previously i tried .contains() but obviously if a user name is "hello" and another's is "helloworld" it will match both of them.So basically i need to read all the lines in the txt file and if none of them lines contains the specific text im looking for then alert me. [code]
View 5 RepliesI have the following code to read a csv file and copy each line to another file as long as it does not contain certain strings, it seems to work a little but it leaves some lines in it shouldn't, and it's also taking lines out it shouldn't as if I keep running it again on each output file it eventually takes everything out!
Private Sub Strip_File()
Microsoft.VisualBasic.FileOpen(1, tFile.Text, OpenMode.Input, OpenAccess.Read)
Microsoft.VisualBasic.FileOpen(2, "C:AcmeIPPMaster.csv", OpenMode.Append, OpenAccess.ReadWrite)
[Code]....
I'm new here and I'm trying to make a little program with Visual Basic (2010 Express Edition).The purpose of this program is:
1) Load the text file lines and split them into a constant and a value
2) Edit the text file lines values
The content of the text file is like this:
[Code]...
This basically split every lines in two parts: the constant ("Name", "Surname", "Age", "Hair") and the values ("Mario", "Rossi", "50", "Black").Now about the second point, I've added a Button1 which should take the Textbox1/2.Text and the Combobox1 selected item and replace the values(aka separator(1)) in the text file. The problem is I don't have any idea at the moment how to do it. What method should I use?
I am reading from a textfile. How can I skip a line if it's empty?
Or is it possible to delete at the beginning of ReadAllLines to remove this empy lines.
An empty line would be following:
text1
text2
"empty line"
text3
[Code]....
I have a text file containing lines of data (File 1). I need to delete all the lines in another text file (File 2), which are found in file 1.So I could read file 2 line by line. And then once the line has been read, read file 1 line by line to search for a match. But that's going to be painfully slow.Or I could read file 2 into memory. And then read file 1 line by line and REPLACE the lines in file 2 with nothing, therefore deleting them. File 2 could be 100 mb, so I'm not sure about reading it all into memory.
View 16 RepliesI need a TextBox to resize depending on the number of lines entered by the user, I note that TextBoxes has no AutoSize Property.
Is there a way to Count the number of Lines in a Text?
I am hoping that someone can help me with a problem I've got at the moment using Compact Framework.Net 2 SP 2.At the moment I have a UI with a series of text boxes and each textbox displays the contents of a database field. These are shown one beneath another with a scroll bar on the right hand side of the form. Each textbox has a set width which might.I would like to adjust the height each text box based on the number of lines it is holding, the font size and the font in order to avoid using scroll bars on each textbox.[code]
View 3 RepliesI have 2 panels set up, one contains the rich text box the other one contains a single label. The am currently using the following code however it is not working.
Dim line_count As Integer = mainEditor.Lines.Length
Dim linecounter As Integer = line_count
linecounter += 1
line_count = 0
[code]....
