Listbox And Streamreader - Select More Than One And Have The Whole Of The Lines Loaded?
Sep 24, 2009
Using Visual Studio 2008
I have a Listbox where i use OFD to list selected text filenames, can be multiple and from different drives
[code]...
I would like to be able to select more than one and have the whole of the lines loaded. I have tried many approaches, 'For each line' for example, but cant get my head around it. Another issue is that i would only like to see the textfile name in the listview box instead of path and filename.
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Oct 13, 2010
I have the following code;
Public Sub writetofile()
' 1: Append playername
Using writer As StreamWriter = New StreamWriter("highscores.txt", True)
writer.WriteLine(PlayerName)
[code]......
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Aug 14, 2010
I am writing a click event to delete an item selected from a list view which will utlimately be deleted from the csv file the information is coming from.Currently I am having streamreader read each line and then replace the selected line with a blank line. This creates blank lines in my csv files. Is there a way to delete a line using sr or sw without creating blank lines?Or is there a way to have them read/write a file skipping any empty lines?
My
If ListView1.SelectedItems.Count = 0 Then
MessageBox.Show("Please select a class from the upcoming schedule list.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
Else
[code]....
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Jun 6, 2007
I am developing a VB.net 2005 console application and before reading each line I need to determine the number of lines in a streamreader.Is there a way to do this easily?
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May 17, 2010
when using stream reader to read text files how would i go about reading or referencing specific lines.so if i wanted to read from say line 2, 3, 4 or 10,11,12 in the textfile or what ever.
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Sep 20, 2010
I am using Visual Basic 2010 with Windows 7. My code is is follows:
Dim file as system.IO.StreamReader
file = My.Computer.FileSystem.OpenTextFileReader(C":financialsprogramcurrency.txt")
TextBox1.text=file.ReadLine()
file.Close
For some reason my program does not execute beyond the Dim statement and instead displays the form without text in TextBox1.
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May 20, 2009
the default readline method of streamreader reads the text file from top to bottom how i can reverse it?from bottom to top?
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Aug 15, 2010
I am in the process (slow process) if learning vb.net by trying to create a simple application that will read and write (save) chosen information to a text file. The application has text boxes (name, email address, etc) and I want to read information from certain lines in the text and place in the given text box.[code]When I start debugging mode it does not display the text until I click onto the text box and it's displaying the first line of text in the file. How do I skip the first line of text and have it display the second line (or the 6th, 24, or whatever line I need to be displayed)?Then I can start working on learning to use streamwriter
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May 19, 2011
The following is what I have that is exporting all usernames to a text file.
[Code]...
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Oct 10, 2010
Im having trouble with streamreader.. It keeps locking up the debugger after the first 3 lines.. The last line being blank.. There is basically a status readout screen that updates every second or so with statistics about the Video Stream in the FMLEcmd.exe program
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Aug 24, 2011
I have data contained in a file on a FTP site that I need to grab hourly because it updates hourly(this I easily have figured out). Now the problem I have is that when the data is grabbed from the FTP site it is space delimited and looks like this: (
11 8 25 180164 173712 169967 171362 178962 192190 202470 213020 222190 230931 235465 238286 241388 239486 235889 231364 222790 214432 207234 203454 202579 192798 179504 168480
[code]....
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Aug 25, 2006
I have a "Form" with:
1- List Box
1- TextBox
3- Button
1- OpenFileDialog
1- SaveFileDialog
I want that clicking the btn1 it shows the OpenFileDialog and read file that it has got this structure: SKI10 1 71 0 0 18 101 19 0 29 101 30 0 40 101 41 0 50 101 51 0 62 101 63 0 81 101 82 0 95 101 2 0 0 95 165 3 0 1072 01 4 2 1 93 15
I want that it reads all Line of the File and it add an Item in ListBox for line.For example the first Item of the ListBox in this case is
SKI1
And the 2th Item is in this case.
0 1 7
I want using the StreamReader classes.And i want that when i click an Item of the ListBox it shows the Text in the TextBox and I can edit the Line and that clicking antoher button the Item will come updated with new Text of the TextBox.I have also another button for saving the Mod.I can use the AppendText and it create a new file writing ListBox1.Items line for line.
If SaveFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then Dim file_esistenteD As StreamWriter[code].....
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Dec 17, 2009
Next listbox value:
1
2
3
4
5
6
7
8
9
10
11
I want to remove the first 9 lines remain in listbox:
10
11
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May 31, 2012
I am trying to decrypt a file and the decrypted contents will be loaded to a listbox.
Public Sub Decrypt(ByVal inName As String, ByVal outName As String)
Try
Dim array As Byte() = New Byte(&H1001 - 1) {}
Dim num2 As Long = 8
Dim stream2 As New FileStream(inName, FileMode.Open, FileAccess.Read)
[Code]...
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Jun 11, 2011
1. I get a list of excel files from a dir into a list box and search for number by select each files at once. I want to select multiple files at once and search them one by one.May be using checklistbox.
2. The output is shown in a new window (labels) with result from that particular file. If multiple files are selected that the output should show result from all files in different labels.
3. Excel program stays open in memory after closing my application.
4. Also I cant get the app to display message "maskedtextbox1.text" not found in the sheet.[code]
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Dec 25, 2010
I get a list of excel files from a dir into a list box and search for a string/number by selecting each files at once. I want to select multiple files at once and search them one by one.May be using checklistbox.
2. The output is shown in a new window (in labels) with result from that particular file. If multiple files are selected than the output should show result from all files in different labels.
3. Excel program stays open in memory after closing my application.
4. Also I cant get the app to display message "maskedtextbox1.text" not found in the sheet. If I do after line 30 Else messagebox.show "String not found", it goes into loop or displays the message even if the string exists in the excel file.
[Code]...
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Apr 19, 2011
I have a problem with a streamreader in visual basic 2008.I am updating a database from text files on an ftp server. The streamreader works fine until the file is more than 100,000 bytes long.It reads until it reaches this point and then just ends. No error message, it just reads to this point which happens to be 2 fields out of 6 in the database stream. My question is - does the streamreader have a limit? And if so what is a workaround?
Dim connString As String = "Data Source=" & pDataBase
conn = New SqlCeConnection(connString)
Dim strQuery As String = ""[code]......
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Jul 9, 2009
I'm writing a program that basically loads an entire text file into a streamreader variable, then reads this variable line by line and parses and writes a line into a new text file. I'm VERY new and my knowledge is mostly self-taught, but I can't seem to get out of this one. It works for smaller files, but it appears to reach a limit in characters at some point because in a file of 900 lines, it stops writing about halfway through 800 and there are no errors, the program actually completes and the message box pops up.
There are a few things with this code I already know I should fix, such as creating the new text file name, it's messy, I just don't know how.
Private Sub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim IndexValues As String()
[CODE]...
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May 15, 2010
how can i import email from listbox to loaded url in web browser component?i have an url there www.mylink.com and when it loads it has a textbox and continue button. how to import email from listbox to that textbox and the application after inserting to click to continue button on loaded web url..
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Aug 7, 2010
Is it possible to select an item in one listbox and then display the data of another listbox with the same indexed position? I am planning a project and this is something I would like to attempt but I haven't figured out how to do it.[code..]
I tried doing the above code but instead of displaying the listbox text the message box just returned false.
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Jun 21, 2010
1. How do I make it so a listbox displays a files contents once loaded?
2. How do I save a textboxs text?
3. what does this error mean?
An error occurred creating the form. See Exception.InnerException for details. The error is: Failed to initialize because CategoryName is missing.
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Jun 16, 2010
I have a question here.. pls kindly advise.I need to design a simple form that allow user to choose the value from Listbox A to Listbox B. For example, in Listbox A, have value A, value B and value C, then user can choose (or highlight value B and value C) and copy into the listbox B.
May i know how can i do this in vb.net? Any reference link?
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Jun 20, 2012
when I click on rtb how do I assign clicked line (text of that line) to a variable 'x' and a line below to a variable 'y'? I have so far this
SendKeys.Send("{DOWN}") 'Move cursor to next line
SendKeys.Send("{HOME}+{END}") 'Select the line
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Nov 20, 2011
I have a listview box. I load the listview up from a text file and everything is divided into three groups. I need to be able to select multiple lines then push that out to a single variable, separated by commas. Two things are happening that are problematic:
1) If I just have it set to smallicons and no checkboxes, anything I select is highlighted right up until the control loses focus at which point everything un-selects.
2) If I turn on checkboxes, I can click boxes and they stay selected when I lose focus BUT the checkboxes are cut off on the left side of the control. (The checkbox appears to go off the edge of the control.) There's plenty of space in the control for the checkbox and the listed items.
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Jan 15, 2012
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.[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]...
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Jan 10, 2009
I have some lines in a ListBox, i need that select 1 line random and send this line to Label1.Caption.
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Aug 2, 2010
So in my form i have the user input a bunch of data that gets written to a listbox. Like so Pre_Study_Listbox.Items.Add("Team Members are: "). I then save the listbox to a .txt file and they can later load the .txt file back to the listbox. All this works great. But now i need to reverse the order of textbox to listbox and put the information back into the textbox fields from the listbox. So. The parsing character is ":" I need to read each line of the listbox and at the ":" take the rest in put it to the text box. I am not familiar with the parsing command
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Jul 17, 2011
What im try'ing to do is when a ListBox item is selected and the value has been given with a NumericUpDown box and the ''Add to orderlist'' button is clicked that it saved it to a file called "orders.txt", not at startup but when the first order is made.
Some requirements:
U can't order the same thing twice ( only edit it within the editor ).
The "orders.txt" has to open on a TextBox1 at Form2 ( the text editor ).
And the user can only change the order amount in the edit program.
Example:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListBox1.Items.Add("7226218; Hemlock; 22.55; 0")
[Code].....
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Oct 6, 2011
I have a Richtextbox.Text in my project and I need to save all text lines into a ListBox.Text .
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Mar 27, 2012
OK here is what it looks like when it saves
[Code]...
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