VS 2010 - Removing First Char Each Line
Mar 25, 2012I have a textbox multiline and i want to remove each first element of the textbox.
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How i can remove the first element of each line of the textbox ?
I have a textbox multiline and i want to remove each first element of the textbox.
[Code]...
How i can remove the first element of each line of the textbox ?
How do i read through a textfile line by line checking for and removing duplicate values?
View 1 RepliesI have strMyString that contains about 5000 lines of data. There are some lines of data that need removing if they contain a certain string, such as "http", "www.", ".com", "cat", "fish", etc. The whole line needs removing. Each line is separated by a vbNewLine or similar.
How can I do that? Does it need pasting into a rich textbox first before processing?
I'm trying to have a program remove lines from a text file if they start with a certain string. I haven't had much luck with this over the past couple of days so I thought I'd try and get some advice.
This is the code that I've tried most recently, and makes some sense to me, but gives a "A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll" error:
Dim SourcePath As String = "C: est.txt"
Dim fileLines As List(Of String)
fileLines = New List(Of String)(File.ReadAllLines(SourcePath))
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I am reading a list of IP's from a text file. After every procedure, the first IP (the first line) needs to be removed, and the new first IP will be read at the beginning of the next procedure. Basically, I just need to know how to get rid of the first line of a text file completely. For example, I'd like to go from this:
1.1.1.1:80
2.2.2.2:80
3.3.3.3:80
[code]....
I'm trying to remove a line from a text file that begins with a set value.
The idea would be to paste values into a Windows form, which then finds each line that begins with that value (a 5 digit number) and removes those lines from the file, and then removes the gaps.
How do I limit the number of characters per each line of an RTB to 1 char per line? That is you type one character, after that the textbox should not accept further input on that specific line.-Knock knock -Who's there? -(looong pause..) Java
View 1 Replies I only want one char per line to be accepted in my multilined richtextbox. This means that when one char is typed, then the richtextbox should automatically change line.
So typing 'hi!' should show as:
h
i
!
I tried this but i seem to get out of bounds.
Private Sub txtrtb_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtrtb.KeyPress
txtLength(txtrtb)
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I am still very new to VB. I am having trouble working out how to remove lines within a rich text box, based on the next new entry into the rich text box.
For example:
rtbClient (the rich text box) already has the lines:
long cat is long
he really is
long cat is long
Now, if the next NEW entry into the rich text box is "long cat is long", then the new "long cat is long" string would be ignored because the line previous (and only the previous line and not all lines that already exist) is exactly the same. Note, I know of the Me.rtbclient.Lines = Me.rtbclient.Lines.Distinct.ToArray code, iv tried playing around with it with no luck.
How can i remove the first line of a textbox on a button press?
View 2 RepliesI have two a strings when i use them in msgbox() i get this
View 6 RepliesI'm really stuck on something, which, is probably easy, but I've blown hours trying to figure this out.I need to be able to remove 1 line from a textfile. I will always know exactly what line it is, as, it's the same "string" as a variable. So if my variable is called "removeThis" then I need to be able to Read through the textfile, find the line that is equal to the removeThis string variable, and then rewrite the whole textfile.
View 3 RepliesAny way to remove this problem I have in VB2010. I've done a picture box, where you can draw lines by clicking with your mouse. There is a label running along with the mouse pointer, but every time the cursor moves over the line, the label removes the line under it. I've tried setting transparent background to the label.
View 5 RepliesI am making a program that loads files into a ListBox, loops through each one, and if the last line of the file begins with "@", it removes that last line.Now, I am not really sure how to do this.Would I use LineReader?How would I check the first character?
View 4 RepliesI have not had much time to go threw my code properly as this is some urgency. I need to remove line 1 from a textfile if it contains a string but its not working.I have 500 files and not going to do this manually.
Code:
Private Sub btnRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRemove.Click
If String.IsNullOrEmpty(txtDirectory.Text) Then
OpenFolderDialogDirectory()
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I also feel the function is very pointless sime i am opening the file twice.
I'm trying to build an app that would search a text file for a string entered by the user, and delete the line of text containing that string. Here's the code I have. The code works, but since I'm relatively new to VB and programming as a whole, I was wondering if there's a better method out there. he strFilePath is handled by the openfilediaglog
Dim strSearch As String = Replace(MaskedTextBox1.Text, "-", "")
Dim strLine As String = Nothing
Dim strAllText As String = Nothing
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I am writing an app that writes notes, inserted by the user, to a txt file. The app saves that notes to a txt file, and when opening it reads the file and shows the already inserted notes. However, I want the user to be able to delete some of those notes...but I can't seem to do it...this is what I have:
VB
Dim file As New FileStream(data_path & "notes.txt", FileMode.Open)
Dim text As String = Nothing
Dim reader As New StreamReader(file)
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It goes fine, but the text.Replace(value, "") line doesn't seem to work. I've also tried text.Remove(0) but it doesn't removes the line...it looks like it has no effect.
i want to read a character 1 by 1 from a string and a .txt, i know all about stream reader so for the .txt would it be somthing like:textbox1.text = tr.readCharacter.i would prefer to be able to read from a textbox or String array though.
View 10 RepliesI need validation for string to comply with next: no space char starts with one delimiter char ends with one delimiter char has no other char as delimiter char. Updated sorry missed that should only be one delimiter char at start and at the end
View 2 RepliesPublic Shared Function UrlTokenDecode(ByVal input As String) As Byte()
If (input Is Nothing) Then
Throw New ArgumentNullException("input")[code].....
I want to convert a decimal value or a hexadecimal char.Someone could write a function?
View 5 RepliesI am trying to get a character from a rich text box based on two variables (one for the x coord and one for the y coord. Everything I've tried so far has lead to errors. The get char from position option returns something about not being a part of system.draw... something
View 3 RepliesI know how to get the cursor position but how do I add a character to that position. Like I want to have a button that adds a specific character at the position of the cursor.
I don't see any richtextbox properties that allow me to add anything at the cursor position.
If TypeOf Me.ActiveControl Is RichTextBox Then
Me.ActiveControl.SelectedText = Chr(176)
End If
I'm trying to insert data into a table but I get the error "Cannot convert char value to money. The char value has incorrect syntax". Here is my
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I made my irc client. It sends & receives to a richtextbox like this :
Well, you might know mirc or nns, there it is like this :
How can I do it the same, so all the text is at the same place, under eachother, like on the second screenshot.
& another question : How do I color words in a richtextbox ? I tried Selectionstart = Find("blablabla")& selectioncolor = color.red
but that selection dissapears when someone send a new comment.
I have string that is equal to 112233. I need to insert "-" after every second char in string so i wrote the
Dim str1 As String = "112233"
Dim str2 As String = ""
Dim i As Integer
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I have a text in richtextbox1, i want to extract each 3 char of the string and so on, like:
[Code]....
How can i do it ? Code can be in C# 2010 i will translate to vb.net 2010
i am trying to increment a char in vb.net, eg: Dim letter As Char = "a"c. and i want to make it b, and so on. how can i do this?
View 1 RepliesI am trying to convert a piece of C# code, and I ran it through a converter, and had to make some changes.I am now running into this error:
Operator '<<' is not defined for types 'Char' and 'Integer'
The code is:
a += CType(URL(k + 0) + (URL(k + 1) << 8) + (URL(k + 2) << 16) + (URL(k + 3) << 24), UInt32)
b += CType(URL(k + 4) + (URL(k + 5) << 8) + (URL(k + 6) << 16) + (URL(k + 7) << 24), UInt32)
c += CType(URL(k + 8) + (URL(k + 9) << 8) + (URL(k + 10) << 16) + (URL(k + 11) << 24), UInt32)
The error occurs on each of the (URL(...) << X)
I have a picture in my picturebox. In that picture, I need to draw a straight line between two points and calculate the length of that line (probably in pixels). Is there any suggestion how to do it?
View 2 Replies