VS 2010 : Sum Numbers In A Textfile?
Feb 24, 2011I just got a textfile with a couple of numbers (1 number in one row), how would I sum these numbers? I thought it would be easy, but thing is it's turning out to be not so easy.
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Create A Textfile And Write Some Lines Into The Textfile?
Oct 18, 2010I am trying to create a textfile and write some lines into the textfile. However, the code that i am using can only write when the textfile is already created in the directory.
For this case, can i actually allow my script to search if a textfile is being created, if not create a textfile ???
Dim pathdir As String = "C:workingdir est.txt"
If System.IO.File.Exists(pathdir) = True Then
Dim objWriter As New StreamWriter(pathdir)
[code].....
VS 2010 : Insert The Value From Textfile?
Jun 29, 2011I dont know what insert statement and otner codes will i put.
Imports System.Data.SqlClient
Imports System.IO
Imports System.Configuration
[code]....
VS 2010 About Writing To A Textfile?
Mar 7, 2011i want to rewrite a text file with information already added to it but with my current code it just adds it to the end of the file is there a way to rewrite the entire file with new information.
Private Sub writebtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles writebtn.Click
Dim bookfile As StreamWriter
If OpenFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
bookfile = File.AppendText(OpenFileDialog1.FileName)
[Code]...
VS 2010 Textfile To An Array?
Sep 17, 2011I cannot figure out how display the data from my array in the listbox using a For Next loop.I'm not even sure if the data from the textbox is even getting stored into the array. Here is what I have so far:
Structure Player
Dim strFirstName As String
Dim strLastName As String
[code].....
VS 2010 Remove Lines From Textfile?
Jun 19, 2012I have two text files and each text file has various columns (each column is separated by a tab " "), now some of the fields in column1 text file2 match the fields in column1 text file1. What I'm trying to achieve is to remove every row in text file 1 where the field in column1 matches the field in column 1 textfile 2 - is this possible?I have used some basic coding in the past to remove certain lines, but nothing as complex as this.
Dim linesList As New List(Of String)(File.ReadAllLines("Path"))
linesList.RemoveAt(1)
File.WriteAllLines("Path", linesList.ToArray())
VS 2010 - How To Remove All Blank Lines In TextFile
Jun 21, 2012I use the following coding to replace a word in my textfile, would it be possible to add any coding that will remove all blank lines from the same text file?
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
I have tried the following but it doesnt work.
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
Dim sText As String = File.ReadAllText("D:Test.txt")
Dim sNewLines() As String = sText.Split(New Char() {ControlChars.Lf}, StringSplitOptions.RemoveEmptyEntries)
File.WriteAllLines("D:Test.txt", sNewLines)
VS 2010 Saving Changes (textfile) On Form Closing
Apr 7, 2011I'm sending a message on FormClosing(...)... This works ok. However... I have multiple tabs with a textbox or rtb, in it. When I change the text, whatever, it is modified. Now, when I close the app a messagebox appears that some of the textboxes or rtb's have been modified. This message is shown for each textbox-rtb-control. Which means, that when I have changed something in 4 different rtb's or textboxes I get the message 4 times. How do I change that to only one time?
[Code]....
VS 2010 Textbox Read/Write To TextFile?
May 7, 2011The code below allows me to write a single line to a textfile. Id like to be able to open an entire textfile into a textbox, be able to edit said text and have it automatically write back to the same textfile.
Private myCoolFile As String = "C:UserskevinMy Documentspasswords.txt" '// your file.
Private myCoolFileLines() As String = Nothing '// String Array to read File Lines into.
Private sTemp As String = Nothing '// temp String to be used as needed.
[code]....
VS 2010 Value Of A Textbox Matches The First Value Of Each Line In A Textfile?
May 30, 2012I have some coding which displays a label if the value of a textbox matches the first value of each line in a textfile.
Dim sList As New List(Of String)(IO.File.ReadAllLines("Path"))
Dim i As Integer
For i = 0 To sList.Count - 1
[Code]...
The problem is if the textbox has 1 and the textfile has 11 it will display the label, what would be the best way around this?
I have tried sList(i).Contains etc but none of them are doing the job.
VS 2010 Add Nodes Treeview Drag-drop Textfile?
Jun 19, 2011I have a simple textfile which I want to drag-drop into the treeview. After the drop read the textfile (line by line) and create the nodes. There are no subnodes (what-so-ever). File looks like this:
line1
line2
line3
line4
VS 2010 Index All Words Textfile Starting With Specific Character
Apr 15, 2012Let's say I have a textfile which contains paragraphs. Some of the paragraphs start with * or a > character. How do I index the words that start with these characters?
Example:
[code...]
VS 2010 Prog Appends A Textfile - User Able To Delete Or Modify While Form Open?
May 17, 2012Prog appends a textfile. Don't want user able to delete or modify while form open. How do I do this?? - As long as form is open user cannot modify or delete textfile. But so the file can be edited from within form
How do I do this. Here is my code so far
Public Class Form1 Dim FILE_NAME As String = "C:UsersBirthdayDocumentsinfo.txt" Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
VS 2010 Read Through A Textfile Line By Line Checking For And Removing Duplicate Values?
May 16, 2012How do i read through a textfile line by line checking for and removing duplicate values?
View 1 RepliesVS 2010 Sum Of Numbers?
Jul 8, 2011I'm again got stuck in a simple problem, i'm learning it by myself. I didn't able to do it as i've tried many times. I'm making calculator. Please tell me what I'm doing wrong?
VB.Net
Dim total, num As Integer Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Label1.Text = Label1.Text &
[code]....
VS 2010 - Query For Even And Odd Numbers
Dec 1, 2011"Select * from Table WHERE ItemNum=2 OR ItemNum=4 OR ItemNum=6"
I use the code above to select ItemNum w/ even number.. but the problem is how about 8 and above? The same with odd number?
VS 2010 Add Multiple Numbers?
Nov 28, 2010I am trying to write a console application that adds and undetermined amount of numbers together and then averages them and does some other calculations with them, but I cannot for the life of me figure out how to add many numbers together. I am doing this in a console application and using input boxes and message boxes to Receive and display the data. So the question is, How do I add many numbers together (an undetermined amount, maybe 5 numbers maybe 25 numbers) and then add them.
View 8 RepliesVS 2010 Calculate All The Numbers?
Apr 28, 2011In the TextBox1 I have the following numbers:5 4.1 6.23 0 0 7 7.924
Possible to calculate all the numbers in this way?
like replace all the "space" in "+" and get the answer or something?
VS 2010 Two Random Numbers
Nov 23, 2010every time i press the Roll Dice button the turn1roll1, turn1roll2, or turn2roll1, turn2roll2(depending on turn variable) it shows system.random in ASCII Chart i used the label names so no confusion.[code]
View 5 RepliesVS 2010 Way To Handle Numbers?
Dec 26, 2011Only now, I'm facing this kind of problem, i have a application that until now worked with two different cultures ENG and PT, i always knew this, and i manage to solve all problems related to parsing the numbers, but now i have to change the code, and "protect" the code to handle with others cultures. So i need tips/best way to handle different cultures, and different database culture settings.I think that i shouldn't limit the user, by setting the decimal, the grouping digit, the date time format, etc. . The application should accept the numbers in the user current culture. But this path forces me to putting everywhere the parse/tryparse method.
View 1 RepliesVS 2010 : First Generate Random Numbers?
Oct 6, 2010I have code to save records to my mysql database.But first I want to read what is the last number of record and add 1000 on that? What is the proper way to query that first. I want to make the result at unique ID of my clients. Here is my chunks of codes.
Private Sub addClient_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim conn As MySqlConnection
conn = New MySqlConnection
With conn
[code]....
VS 2010 : Get A Random Number From 2 Numbers
May 8, 2012i need a simple way to get a random number from 2 numbers. This means that for example if my 2 numbers are 3 and 7, i don't need a random number between 3 and 7 that would be like 3,4,5,6,7 but only a random that is either 3 or 7. Meaning not all the numbers between x and y, but either x or y.
View 7 RepliesVS 2010 Comparing Negative Numbers
Jan 22, 2012I have this
[Code]...
All that is happening above is two players are being compared by scores and a winner is then decided. The calculation works fine and places the winner in the correct spot (txtWinner1.Text) as long as the numbers are positive. So if txtU1D.Text has 13 and txtU2D.Text has 14...txtU2 is the winner. Works with no problems. However, if txtU1 has -1 and txtU2 has -2...it says txtU2 is the winner. The negative scores are common in the game being played so the situation often happens, but may be one player only. It seems to work if one is positive and one is negative, but if both are negative it thinks the higher negative number is the winner for some reason. So it will give the win to someone who has -9 over someone who is -4.
VS 2010 Math Function On Big Numbers
May 9, 2010I am making a calculator that accepts large number (represented as strings) and performs basic math functions on them. So far I have Add and Multiply figured out.
Here is addition
Private Function Add(ByVal Number1 As String, ByVal Number2 As String) As String
Dim num1, num2, r, total As New Integer
Dim sum As String = ""
[Code].....
I saw something like this in the code bank but the examples there were from VB6(?) and were hugely inefficient (compared his Add and Multiply examples to mine, his having way more code and loops.)
VS 2010 Multiple Numbers In One Textbox?
Oct 20, 2010How do I add, for example, all the numbers in the textbox (they are separated by spaces)? I tried a couple of methods but no luck so far. So for example, this is what the user will input in the textbox:
View 7 RepliesVS 2010 Restrict A TextBox To Only Numbers?
Aug 7, 2010[code].....
View 2 RepliesVS 2010 Streamwriter Rounds Numbers?
Nov 11, 2011I have an application in which a streamwriter is used to save values to a file. It all works fine, except I'm curious as to why the values in the file would be rounded. They are rounded with enough accuracy that it doesn't really matter to the app, but I'd like to know why this is happening. My line of code that writes the line is.
View 14 RepliesVS 2010 Textboxes To Allow Numbers Only (No Characters)?
Mar 17, 2011I figured there would be some simple way to set up some textboxes to allow ONLY numbers or ONLY characters, however I haven't found an easy way yet.
Is there a simple trick to setting something like this up? And if so, how would I do it?
Convert Numbers To Text In VB Express 2010?
Jul 12, 2011I need to convert numbers to words, (ex: 123 to one hundred twenty three/ 123.5 to one hundred twenty three point five.I use visual basic express 2010. I intend to create a textbox for the input and use a label to show the result. If I call the textbox "textbox1" and the label "label1", what will the code be?
View 3 RepliesVS 2010 - Results Coming Out Numbers Reversed
Feb 28, 2012I've created a program that allows a user to input numbers and then outputs the highest and lowest number when the user is done (the user indicates this by using a sentinel value of -99). My only problem is that it keeps putting out the numbers reversed (largest as smallest and vice versa).
The code is below.
Module Module1
Sub Main()
'Declare Variables
Dim number, smallestNumber, largestNumber As Integer
'Get numbers from user
[Code] .....
Is it a no-no to have a module within a module like I do there? So far there is no mention of such in the book but I can't find an example of it happening yet either? The instructor wants modules to perform the input and return of information and the only way I could figure out it doing both of those things (rather than using the main module for user input) was to call the module that figures hi/lo within the module that asks for the numbers. I'm really unsure on this part.