Loop Through Text File?
Feb 14, 2011I sometimes use text files to save application data to as I have just found it easy and I just use streamreader/writer to read/write values like so[code]...
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Loop Through A Directory And For Ever Text File
Feb 8, 2011I am trying to loop through a directory and for ever text file that I find, convert the encoding to UTF-8 Fromat.
View 2 RepliesRead And Loop Through Text File?
Jun 11, 2010I am writing a VB.NET program and I'm trying to accomplish the following:
Read and loop through a text file line by line
Show the event of the loop on a textbox or label until a button is pressed
The loop will then stop on any number that happened to be at the loop event and when a button is pressed again the loop will continue.
Code
Imports System.IO
Public Class Form1
'Dim nFileNum As Integer = FreeFile() ' Get a free file number
Dim strFileName As String = "C:scb.txt"
[Code] .....
I'm able to read the text file but my label will only loop if I hit the start button. It goes to the next line, but I want it to continue to loop through the entire file until I hit a button telling it to stop.
Reading A Text File And Using A For Loop
Sep 16, 2010I'm trying to create a program to read a file and create a table. Public Class Form1
[Code]....
VS 2008 - DataReader In Loop Through Text File
Apr 28, 2011I've wrote a program designed to loop through a text file containing email addresses and unsubscribe said email addresses in our CRM system. I'm having a problem with the following code...
Do While obj_filereader2.Peek() <> -1
strcuremail = obj_filereader2.ReadLine()
Dim dbqCustNo As String = "SQL CODE HERE - SELECT CUSTOMER NUMBER"
Dim exeCustNo As New SqlCommand()
Dim SQLdr As SqlDataReader
exeCustNo.Connection = ConnStr
[Code] ......
The program is falling over when trying to execute the update commands during the datareader loop, with the fabled 'There is already an open DataReader associated with this Command...' error. This program has evolved as I've found problems/better ways of working, so it might be a case of myself just not using the DataAdapter right - I'm guessing I should be using a function of the open DataReader rather than the ExecuteNonQuery command.
VS 2010 Writing To A Text File Using A Loop
Feb 26, 2012basically what I am trying to do is perform a loop that will write the input from an inputbox into the .txt file. My loop doesnt seem to be working,
[Code]...
Creating A Loop In StringBuilder To Alter A Text File
Jul 2, 2010I would be grateful with some help with reading a text file into a Richtext box. The code I have at present appends the first line of text as I want it but the rest of the lines of text do not alter. I need a loop to read to the end of file and display in Richtext box. the code i have at present is this:-
[Code]...
Loop : Just Reading And Printing The First Line Of A Text File?
Apr 9, 2010I have a problem with a loop that I'm writing where it is just reading and printing the first line of a text file.
ofdFile.Title = "Choose file to read"
If ofdFile.ShowDialog() <> Windows.Forms.DialogResult.Cancel Then
sr = New StreamReader(ofdFile.FileName)
End If
[code]....
Do i have the .peek set up wrong where its only doing the first line?
Loop Through Datatable And Output Results To A Text File?
Feb 3, 2011I have a data table that has thousands of entries. The table has employee production information: YearMonth, Employee ID, Pages worked and Jobtypes (e,k,o and r). I need to calculate a sum of each jobtype and a sum of pages worked for each jobtype, for each individual employee. I am pulling this data from an Access database and so unfortunately I am unable to use LINQ.[code]...
View 4 Replies.net - Loop Thorugh A Folder And Read Each Text File Into A String?
Jan 20, 2012I have a folder that contains about 100 txt files with information in each file.I'm trying to figure out how to loop through each file in the folder, and add the text to a string.I've pulled this off MSDN's site, but it doesn't seem to read "each" file but just one.
Dim path As String = "c: empMyTest.txt"
' This text is added only once to the file.
If File.Exists(path) = False Then
[code].....
Stop And Starts A Running Loop Of Number On A Text File Or Database In Visual Basic?
Aug 25, 2011I need a small app that randomly shuffles a set of preloaded numbers. The shuffling will be visible on the screen and goes on continuously (looping) until a key is pressed and as soon as that happens it will show the winning number.Am using visual basics 2008 to develop the application but my problem is when i start the app and hit a key it will loop through my numbers on the text file and it will also display the event but if i hit a key to stop it will not stop..I was workin on the app but my problem is how to stop the loop and resume on the with a keypress. below is the app codes.
Dim Running As Boolean = False
Sub ReadAccounts()
Dim arr As New ArrayList
arr.Add("1366-665885-666-22650")[code]....
Evaluates Loop Condition In Do...Loop Statment To Determine Whether Loop Instructions Should Be Processed
Mar 14, 2011Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
VS 2008 - Read Text File - When Click Button Add Text From Combobox Is Added To Text File
Jan 4, 2010I 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]...
Add Text To Its Boxes In A Loop?
Jan 21, 2011I am trying to find a way of adding data from an aray into corresponding textboxes...
So I want to display a(1) in textbox1 then a(2) in textbox2...etc...also b(1) in textbox26 and b(1) in textbox27 etc....
Sorry if this is a simple issue, but I am used to basic not vb.[code]...
Selecting Text Box In For Loop?
Jul 10, 2010Is it posable to do something like this?
For i = 0 To 10
TextBox(i).text = Data(1,i)
Next
Text Box String Loop
May 12, 2011i need it so my form 1 : text box the user enters a name and if they dont enter a name or if they enter wrong characters it loops and keeps asking them, if they enter a proper name it launches form2 this is my code i have made for it so far but its not working right. can someone help me out ? Where i have " String " that dosnt work i need something in there i think, so that if 3 + any string characters it accepts as a name if that makes sence.[code]
View 3 RepliesAdding Numbers To Text (for-next Loop)?
Jul 11, 2009I have a text file (*.txt) with a name in each line, like this:
Joe
Dane
Lisa
Kelly
Now I want each name added with a number from 1 to 99.
Like this:
Joe0
Joe1
Joe2
[code]....
I have folowing code:
For n As Integer = 0 To (numbernames) - 1
strContents = objReader.ReadLine()
For i As Integer = 0 To 100 - 1
[code]....
With this code all happens ok and a new text file is created with the desired name-list with added numbers.The only problem is that the last name doesn't get a number added from 0 till 99 but for example 0 till 17.
Forms :: Loop Set Text To Textboxes?
Nov 15, 2008Is it a way to set the text in a textbox from a loop? Bad Explained, heres an example
Dim id(10) as string
For h As Integer = 0 To 10
[code].....
Label Text Does Not Change In Loop
Apr 18, 2012I'm trying to change a text that a label displays during each iteration of a Do While loop in Visual Basic. One label (which displays an integer) works fine, however the other stays blank until the loop finishes and displays the final result.
Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles btnOblicz.Click
Dim W As Single
Dim L As Integer
Dim J As Integer
Dim Y As Double
[Code] .....
ListBox Accessing The Text In A Loop
Mar 16, 2010How to access the text of a List box control in a for or for each loop
[Code]...
SQLCommand Not Clearing Text In Loop
Mar 3, 2010In a for each loop I am adding rows to a table for a cross reference. Using the following code:
For Each cp In pCheckPoints
If cp <> String.Empty Then
Dim insertSQL As New StringBuilder
With insertSQL
.Append("INSERT INTO [CheckpointMessage] ( ")
Without the objCommand.CommandText = String.Empty line the CommandText is appending the insertSQL but that doesn't make any sense to me because I would expect the objCommand's commandText to be empty since it is in a using block.
Update Text Of Labels Using For Loop?
Oct 30, 2009Is there a way to change the text of a label using for loop. I mean if i have labels namely "label1", "label2", "label3" and so on. [code]...
View 3 RepliesVS 2008 Loop A Textboxs Text?
Jan 31, 2010I'm loading a text file into my textbox via stream reader however when I view this in notepad I see these things in it, then on my form the convert to new lines, how can I remove them?
View 16 RepliesTake A Comma Delimited Text File And Then Select All Unique Records Based On One Of The Fields In The Text File?
May 7, 2010i want to take a comma delimited text file and then select all unique records based on one of the fields in the text file. should i read the text file into a data table or just use a data reader?
View 7 Replies[2008] Use The Treeview To Display The Text Of A Rtf (rich Text File) File When An Specific Node If Clicked?
Aug 30, 2009Hi, 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.
Assigning Text Box Values Dynamically In A Loop?
Feb 10, 2011I have 20+ text boxes that are all named like:
TxtCustom1
TxtCustom2
TxtCustom3
[code].....
Convert The Decimal To An Integer And Then Use A While Loop For Every Text Box?
Jun 21, 2010I am new to vb and need some help with this change program. The idea is that we are given a certain amoun of change and then telling how many dollars, quarters, dimes, nickles and pennies. I thought I would convert the decimal to an integer and then use a while loop for every text box, i.e. dollars, quarters, dimes, etc.., to show how many of each, but the while loop is confusing for me in vb, but to tell you the truth I don't know if I am on the right track,
[Code]...
Do Until Loop - Adding Text (as Integer) To A Textbox
Mar 7, 2011I am trying to understand the do until loop when adding numbers along with a variable to a new line in a textbox, incrementing each time. My current example is very simple but only returns the first value. I require the output to be incremented automatically, so I thought a do until loop would be best.
[Code]...
Filling Multiple Labels With Text Using For Loop?
Mar 30, 2011Is this possible? I have tried a few different methods with no luck. I am more of a JAVA person, but am taking some classes for VB, and have been playing around. This is what I have tried:
[Code]...
I think I'm going about this the wrong way, but would like to know if anyone has achieved this. All I'm doing is printing a simple character map to 255 labels, each label containing a char. Not an assignment, just having fun.
Filling Text Boxes In A Loop On Another Form?
Jan 20, 2009I have 100 text boxes on another form I have to populate. I don't want to use 100 Form3.txt1.Text = Mid(answer,1,1) as shown below, i would like to put them in a loop, like a For loop. But when I try I get Error1'txt' is not a member of 'WindowsApplication1.Form3'.Is there another way of doing this?
[Code]...