Add Lines In RichTextBox?

Aug 6, 2009

How to make RichTexBox when open a file to show the lines .To be like Notepad++ when open a file shows lines: Image:

Like .txt file thise sentences:

Hello!

How are you?

I'm Ok, Thanks for asking.

and when i start the program and open the file in richtextbox to show the lines of sentences . Like thise:

1. Hello!

2. How are you?

3. I'm ok, Thanks for asking.

How to be done? Because i'm using search button that show the word on what line is it.. so i need the lines people to know what line to search

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Add Values Richtextbox Lines

Mar 4, 2010

Can somebody give me a hint how to multiply each line in a richtextbox with a value?The richtextbox will have ex. 1000 lines with numbers, and I want to multiply all these lines with with a number.

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Number Lines In A RichTextBox?

Aug 20, 2010

I am working on a Programming notepad in VB.net, How would i add Line Numbers into a RichTextBox? An Example would be like in Notepade ++. Would i need to make a Class for it? I already have a class witch makes a richtextbox that when you type a word like "echo" it will change the color. Can i edit this to make the numbers? [code]

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Richtextbox Highlight Every Ten Lines?

Aug 23, 2011

I have a richtextbox, and I want to highlight the lines in groups of ten, alternating colours every ten lines.
I know I need to use:

Dim lineindex As Integer = Me.RichTextBox1.GetLineFromCharIndex(index)
Dim first As Integer = Me.RichTextBox1.GetFirstCharIndexFromLine(lineindex)
Me.RichTextBox1.Select(first, xxxx)
Me.RichTextBox1.SelectionBackColor = Color.Red

However I'm not sure what to put in Select to get it to select the whole line, and I'm not sure how to get it to change colour every ten lines (to yellow)

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Mar 4, 2010

How can I get the sum from richtextbox, starting at line -1 ? But the first line should compare with line1.This code adds a constant to all lines and passes the sum to another textbox.

Dim num1 As Single
Dim sum As Single
Dim Constant As Single = Val(txtLowerTol.Text[code]....

So a third textbox should sum with one line "offset".

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May 5, 2012

I want Split @ and " " and Chr(13) From RichTextBox? How do I delete the spaces and lines and @ From RichTextBox?

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Aug 20, 2008

i am making a lua editor that highlights reserved words and so.However I stuck in a highlighting part.I've made the reserver-words highlighting function but I got no idea how to make it highlight comment lines.

Could someone please help me? I want a function to search through the richtextbox and find lines that start with "--" and highlight them with green color.

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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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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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Dec 14, 2009

I have a richtextbox, with random values in each line:

a1,a2,a3
b1,b2,b3
and so on.

This textbox stores the values in a jagged array after lostfocus. What i am trying to do, is for the user to have the ability to 'switch' values in each line if he wishes to do so. Each switched element becomes the first, and the first goes where the old value was. So it's basically a 'swap'. For example:Line1: a1,a2,a3 --> user highlights "a3", right clicks and a contextmenustrip appears with the option 'switch', once he clicks a3 goes where a1 was and a1 goes to a3. So the new Line1 would be: a3,a2,a1. After that if he switches a2, new Line1 would be: a2,a3,a1 Once the switch is done in the array, redisplaying the data in the RTB is not a prob.

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VS 2008 Multiple Lines In RichTextBox?

Aug 26, 2009

How would I make it so that if someone presses a button, the richtextbox will have more then 1 line of text

RichTextBox1.Text = "Something like this, but 2+ lines"

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Delete Lines In Richtextbox That Fall Under The Condition?

Sep 11, 2010

Using this [URL] to retrieve both address and place name at the same time ("//span[@class='listingTitle']|//div[@class='address']/text()[normalize-space(.)]"), I can get a list of placenames and addresses like this in a richtextbox:

jh ryder machinery limited
convenience storage ltd 3344 rideau
rd, gloucester, on, k1g3n4
kitchen interiors 146 colonnade rd,
nepean, on, k2e7y1

The first line is bad, it doesnt have an address. Line 2 and 4 are good, they have addresses. So what I could do is:Check each line,if the following line doesnt contain "numbers + ON" then delete line. This will leave me with PlaceNames followed by addresses, which I will then split every other line into a new textbox, (so I have one textbox with placenames, and another with addresses).

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Forms :: Insert Multiple Lines Into Richtextbox?

Mar 27, 2010

I'm working on a program that inputs a text box text into a RichTextBox via a button click. But when I click a button, it over writes the text that is already in the RichTextBox. How can I prevent this?

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How To Hard Code Multiple Lines In A Richtextbox

May 18, 2010

I am attempting to hard code a richtextbox that has multiline characters upon the Load_Event. However, whenever I use the "&controlchars.newline _ " I get a syntax error and end of statement expected error.

[Code]...

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Random Lines Fom Text File Into Richtextbox?

Jan 31, 2010

basically ive tried a few different methods which i have come accross by searching but none seem to work.

code so far after removing everything that didnt work is as follows

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
End Sub
End Class

im makng a spelling test type application so that each word is on a different line and that are displayed in a random sequency.

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Jul 14, 2009

How to highlight multi lines in Rich Textbox and know which lines are highlighted?

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VS 2008 RichTextBox - Determine Lines Have Changed?

Apr 23, 2011

I am working on a way to determine if the lines of a RichTextBox have changed.I currently use this

Dim newhash As Integer = Me.Text.GetHashCode
If newhash <> Me._prevhash Then
Me._prevhash = newhash
Me._lines = MyBase.Lines

[code]....

But this method has a bad issue: The text property takes a while to "load up" plus getting its hash code adds to it. This code runs every time the Lines are needed (it is a property). So this

For i As Integer = 0 To Lines.Count - 1
Dim line As String = Lines(i)
Next

Takes ages to complete, because for every line it checks if the lines have changed.I am trying to evade using MyBase.Lines too much, since that REALLY takes ages to load.

- I can not use the modified property since it is unreliable (set to true if only a text color changes)

- Can't use the RTF since it changes without the text changing (coloring) and the hash code is slow as well.

- Can't use the TextChanged event, since it is sent after the SelectionChanged event (for some reason)

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Apr 11, 2011

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[Code]...

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Jul 5, 2009

The following code selects a line ina richtextbox. It works OK expect from one problem:

When a line is biger than the size of the richtextbox, it wraps it. This create a big problem as I can not select the last line of the richtextbox (when a line is wrapped it becomes two lines). When I set wordwrap to off it works just fine 

Private Sub RichTextBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles RichTextBox1.MouseMove

RichTextBox1.Focus()

[CODE]...

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example:

1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite

Obviously this is 5 lines and that's what I need to count.

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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.

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[Code]....

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