C# - Inserting A Line At A Specific Place In A Txt?
May 25, 2012
The process I currently use to insert a string into a text file is to read the file and modify it as I write the file out again which seems to be how everyone is doing it.
Since .net has such a diverse library I was wondering if there was a specific command for inserting a string at a specific line in a txt file.
I would imagine it would look something like this:
dim file as file
file.open("filePath")
file.insert(string, location) 'this isn't actually an option, I tried
let's say i have a text file load in my textbox1. i want to be able to locate line 2 and place that line in another textbox, textbox2.so much work to do and so many choices to choose from...
here somenode has some children where first and last children node names are same where as other nodes except the first and last node has some diffrent name ( identical to each other ). I am creating a function to insert a node at specific position, I am not sure about the criteria but may be in the mid.
how can I insert node in specific position. I am using XMLnode.appendChild method for insertion Do I need to rearrange/sort nodes after insertion. How can I determine what is structure and how should I find where the new node should be added according to current document structure.
I have a several text files that get updated each month - when they are updated certain lines are missing that I always want adding back to the files - the text I want adding back needs to go into a specific part of the text file(its always the same text that needs adding and same location)
I am making a game and decided to add a high score section. I currently have this code setup to insert and read from the database, I set the insert code to a bottom just for testing purposes.[code]There are three columns in the database rank, score and name. I set the rank to auto number so the database would assign the player rank automatically, how would I go about inserting the score into the relevant place inside the database and moving the other scores to their new relevant places?
how can i insert record in specific column name..i've used this code it works but how can i insert my record in a specific column name?? here is my code in my btnAddRecord :
If frUpdate = False Then IsConnected("Insert into products values(" & _ Me.TextBox1.Text & ",'" & _ Me.TextBox2.Text & "','" & _
i have write all this value in another text file by adding the title.in my original file's line i must check whether the line contain any MIL value if not, I must write first T1 the below T1 i must write all the line which not contain MIL value until i reach a line which Contain MIL value. If the line contain 39MIL the i must write first T5 then followed by all the line which contain 39MIL until it reach the line which contain another MIL value. Let say 50MIL. the i must write T7 then followed by all the line which contain 50MIL. I sort my original file alredy. so the original file will start from the line which dont have MIL to 39MIL,50MIL,75MIL and 100MIL. Mu output file will look like this
there's a list-box with items, and say you want to modify an item in the middle of the list. You select that item and click "Modify" button and a new form appears with the previously selected item data from first form ready to be modified in a text-box. After modifying and clicking Ok the second form suppose to return that modified string to the first form and insert the modified string into the same spot instead of the originally selected item, so it looks like it was edited to the user.
I am trying to add a new row into a gridview but for some reason i'm having a problem in the for loop.Directly goes to dtCurrentTable.Rows.Add(drCurrentRow) and of course, have an error "'row' argument cannot be null.Parameter name: row", because the tcurrentTable.NewRow was not executed.
Why is this happening? Private Sub AddNewRowToGrid() Dim rowIndex As Integer = 0
I have a text file that I need to go to column 40 and insert 10 spaces. What appears to happen is it takes the filst line and appends 10 spaces for every line that occurs.[code]
I got a program that generates 4 strings which I want to output to a RichTextBox. Getting them there isn't the problem, its getting them on separate lines I am puzzled with. As of right now, they are all just lined up one after the other, which isn't practical for what I need. I simply need 1 output per line, i.e.: Output1 Output2 Output3 and so on. How to insert line breaks?
Is there an easy way to insert a line into the very beginning of a large file?I want to insert an XML header line into XML files that my program processes (These files can be very large, so reading it via bitstream and writing it out is not a good option).
File.AppendText makes it very easy to append lines to the end of a file, but I don't see anything for inserting text.I wonder how does say Access work in processing say a 50 meg access database file? There must be a similar process where you can insert data anywhere inside a large file.
I have a normal windows forms application. A button launches a command line application.I need to insert an argument automatically without the keyboard. Then hide the command line application. I've been trying to figure out how to do this but with little success.I need to build a function that does this but I've never built a function before.Here is what I have but it tells me it may result in a null exception.(Because I'm not doing something quite right.)[code]
I'm using DevExpress.XtraRichEdit (2010 2.8) My problem is, this control does not have some basic functionality as does the Standard RichTextbox Control that comes with VB.NET (2010). However it does have functions that the standard RichTextbox does not have. With that being said, I'm trying to create a procedure to go to a specific line in the control. The control does not have the same procedure as "Richtextbox.GotoLine" The procedure below works with a standard Richtextbox. Basically, I'm trying to create a procedure to go to a specific line in the richtext control.
If txtLine.Text <> "" Then Dim MyText As MainForm.RichTextBox.Text If MyText IsNot Nothing Then
[Code]....
how to go to a line of text in a regular textbox and maybe I can tweak it to work.
[code] I want line 1 to be program version line 2,3,4 etc. be read into seperate variables. I know you can loop the first line above to keep reading lines, but that is not viable as it'll just assign the next line to programVer and override the previous value.
I am trying to extract a number from a specific line and finding it an arduous task. -#comments">18 comentarios</a></span> I need the number before the word commentaries. This is a common phrase to search for and extract. the start of the line varies.
i am trying programming a program that open a txt file then get specfic data from each line then put the data1 in a textbox1 and data2 in textbox2.[code]and for each time i don't now the username or the password i want the programe to search in line 1 the word between "user=" to "" and the word between "password=" to "".I created the text reader and i hope that same one can help complete the project.[code]
if i can make a prog that connects a website read each text below a line containing "3-letter words", "4-letter words", "5-letter words", "6-letter words"
leyend * = comment (ignore it) e.g 3-letter words *aby, abi, bay, bai, babi, ...
what is in line * i need to make the prog read that and output to notepad.for example
Imports System.Net Imports System.IO Dim req As System.Net.WebRequest = System.Net.WebRequest.Create("http:www.a2zwordfinder.com/scrabble.html")
I am reading a text file line by line using StreamReader.Readline(). After reading a line i have to check whether some fields of the line which is read are present in the rest of the file or not. What i am doing is that after reading a line from the file i am passing the streamreader to check whether there are multiple entries. i am trying to use line.Length() to get the length of line, so using this length i can go back to the line
my code:
Dim pos as Long sr = File.OpenText(filepath) While sr.Peek() <> -1
[code]....
my problem is that it is not giving me the expected line or it is skipping some part of the line.how can i return back to my line?
I have two textboxes. Each textbox contains lines, where each line contains comma separated values. When each line of a textbox does not match the number of comma separated values of the other textbox (ie if line 3 of textbox1 has 4 comma separated words and line 3 of textbox2 does not have 4 comma separated values) I want to highlight the line which does not match the other textbox's line.
This is what I got so far (and got stuck!)
For k = 0 To index test1 = testA.Lines(k).Split(",") test2 = testB.Lines(k).Split(",")
I am looking for a way of selecting and modifying a specific line of text as it appears in a rich text box; is there a way of doing this? Visual Basic User.
