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:
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).
How to Add Not condition in the below select case.Is <> works for single value, and 'To' works for a Range but the value are specific values there are not series of numbers. Is it possible to use select case in this scenario, or do i have to switch to if-else. Ex: i don't want case to execute when value is 0 and 3.
i want to draw a line on my picture box but i would like have another line but on rotate condition (on the same time i move my mouse to draw a line)
-i know how to draw a line
-i know how to rotate a picture
but i don't know how to combine that two things
Private m_LastPoint As Point = Nothing Dim LPen As New Pen(System.Drawing.Color.Black) Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PicPad.MouseDown
I am using vb.net 2008 and sql 2008. How can I delete the last row of a record based on the condition that if the column. FileNo is more than 15 then it should get deleted order by Fdate column desc. I want the rows should get deleted from starting from the last row.
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.
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]
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)
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".
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.
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.
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?
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.
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)
This are some of lines in my text file.they are duplicate lines in the tex file. I want to delete the duplicate lines because i only want the lines which have [T1],[T2....]... i higlight all the matching lines.
And just a FYI, I've spent about an hour looking this up... and I just can't seem to get it to work the way I wan't to. My application is simple, I have a "batch file editor". It has a richtextbox, a couple buttons for Open/Save/Test which are working fine.All I'm wanting to do is...
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
How can I use VB to loop through the textbox, deleting Lines 1, 2, and 3, skipping the fourth, and repeat? Or, rather, record every fourth line into a new textarea?
ive been searching the whols google, and i couldnt find a ny solution.. i was wondering if someone here can help me out, i am loading a listbox items from a .txt files, and sometimes there are empty lines, there is a way i can delete them?
