lswScriptreader =
New System.IO.StreamReader("test.txt", System.Text.Encoding.Default)
lswScriptwriter = File.AppendText("test1.txt")[code]....
Hex(D1) is my column Terminator and need to replace it with ",".
how can i replace another hex value at the place that i marked with red colour using VB.NET?
example: i gonna change that '23' into '24'.. i'm just newbie about hex in VB.NET
I have a program written in VB.NET and I have a textbox for the RFID tag (which is in ASCII format) and then convert it to a simple text format to be saved to my database. How can I convert ASCII to plain text to save to my database?
View 1 RepliesI am making a program for work, i have it partly coded, unfortunately i don't have a wifi connection for my laptop right now which makes it hard to add my code here. What i am trying to do is have the user pull in a text file from anywhere on the computer using a open file box that pops up, i got that part, to make sure that is working i have a textbox that reads the data of that text file, it gets pulled in fine using a stream reader. Now what i need to do is search the text file for certain values, and depending on the selected item in the listbox which is on another form, change that value in the text file, im guessing i will need to use a stream writer, and ive seen examples used based on the file location(C:....) but in my case im not sure how to do it.
View 15 RepliesI am using Visual Basic 2008 Express Edition, my goal is to read an entire .txt file that works as a template and replace all ocurances of a word with a new one and save this new modified text in a new .txt when you press a command button.
View 2 RepliesI have a project to complete and i have begun the code. What i want to do is go through the text file and find evey | (pipe) symbol and change it to a , (comma). I have the code and worked out how to do it but the code will only work for the first line. I was just wondering whether any of you had any advice on the way through this problem because i am stumped.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As_ System.EventArgs) Handles Button1.Click
Dim strFile As String
[code].....
I have a small app for find and replace text in a richtextbox:
1-One button: Replace
2-Textbox1 : Find
3-Textbox2 : Replace for
But I want to know if is possible find and replace the text in the richtextbox with a xml file example:
Text in the richtextbox: "I will buy a car"
XML:
<pre lang="vb">
[Code]...
If is possible please can you give me a example code?
I have a program that will read a text file and put information from the text file into multiple text boxes. What I am trying to do now is be able to change the values in the textboxes and be able to write the specifc changes back to the text file. One way I though of doing that was using a while loop and copy the lines of the text file to another text file, then when it finds the line that has the specific change from the text box, make the change and continue writing the line until it reaches the end of the file. Then I was going to copy the file and overwrite the original, escientally making the change to the new file. Right now it will make the new file but will just make a blank text file. I think the problem is in the while loop statement but I am not sure. Here is the code below:
Code:
Private Sub submitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles submitButton.Click
Dim trackname As String
[Code].....
I have to find a string in a huge text file ( ~ 50MB) and then replace it.Since it's quite huge I tend to open the file and then read line by line, and then replace the necessary line(s) (rather than "readall" the file of course).My question is how to replace the whole line?Let's say I found the line that should be replaced . I know I can create a copy file and copy all lines into there ... but I'd prefer to replace the line in the original file rather than creating a copy instance.
View 5 Replies1) a text document which has content like :
uber|uber|ultra
taxi|taxi|taxi cab|cab|minicab|airport taxi|airport transfer
genitalia|genitalia|genitals
[code].....
I would like to step through each *.txt file in a given directory, open it, find and replace all, perhaps a thousand, occurances of a given string (e.g. "00/00/00"), then close and save file, and step to next one in the directory to do the same find and replace. I've been looking at filestream classes and regular expressions but don't see a clear way to do this.
View 4 RepliesI have a Form with 4 Text Boxes, 1 label and one button. What I need to do is: Make all the text boxes and label only except Hexadecimal inputs.when I press Button1
Label1 = TextBox1 AND TextBox2 ^ TextBox3 MOD TextBox4
Once again every all the numbers are in Hexadecimal format.
I have a bunch of object variables which are all initialised in their declarations such that:
Private _myObject As New ThisObject("SomeString")
where ThisObject is one of a number of object types, but all are initialised using a string.
I would like to use the Visual Studio Find/Replace dialog box to search for "As New" then replace everything from "As New" to the first set of speech marks with some text such that:
EDIT
My original example could be solved using other methods. This example is more representative of the actual problem:
Private _myObjectA As New ThisObjectA("SomeString")
Private _myObjectLongName As New ThisObjectLongName("SomeString")
[Code]....
I have thios code that will load a php file (text file) into a sting via streamreader then its supposed to find and replace a portion of the text and write the changes back out to the file via streamwriter. I put my code together and after running it look at the file and it's unchanged. After looking closer it appears the problem is the find & replace operation I am doing on the string. Here is my code:
[Code]...
I am trying to do this but it doesn't work:
VB
Dim str As String = "07" & GetBetween("Stephen 0761234567", "07", vbNewLine)Dim op As String = "lol" TextBox1.Text.Replace(str, op)
GetBetween is just a function to match something between something else. That works fine, the string (str) sets as 0761234567 just like I want but when i try to replace the text it doesn't work.
I want to replace a set of hexdecimal characters with some other in a file.
Like this: 74 65 78 74
Replace those with: 73 62 74 6C
How can i achieve this in VB.NET?
I've used regular expressions in the past. I have an app that parses a .csv file and replaces certain characters (commas). Here's an example..
item1, item2, item3, fruits are apples, oranges, grapes. Squash is a vegetable, not a fruit.
What my app does is search each line between character1 and character18 and replace all "," with "~". How this is done through regular expressions?
I have a string of characters, but I would like to have a string of hexdecimal characters where the hexadecimal characters are converted by turning the original characters into integers and then those integers into hexadecimal characters. How do I do that?
View 3 Repliesi am working with serial communication in vb.i need to know how to get &h1 to be &ho1 to represent the byte o1 in hex or 0000 0001 in binary.i cant remeber how to parse the byte and represent it with two characters instead of one.
View 8 RepliesI have a XML file. Inside the XML file where ever I find the string as ("C:Results est1_01") I need to replace it with ("B:final est1_01") and save it.
View 1 RepliesI am attempting to make a text editor. I have a folder which contains hundreds of text files. I would like to search through all files simultaneously, for some text then replace the text with other text & save, & overwrite originals. I've got most of the basic structure done, but I've go no idea how to search for text in all files in a folder.
View 13 RepliesI have been wondering about this for a long time and have not found any ways to do this other than write my own text editor for it. Regarding the following lines of
[Code]...
I am trying to open up a text file that contains some text. I have 3 text boxes on my screen. What I need to figure out is how to replace multiple words (1 in each textbox) with text it finds in the txt file.
I can do this by using the single find / replace feature but I'm trying to be able to fill out the 3 textboxes and then click my find / replace button to have my Regex find each predefined word and replace it with what is in the text boxes.
Here is my code to get the find / replace one word at time feature. I've tinkered with this to just add more variables to my Regex but it doesn't seem to work.
[Code]...
i am trying to figure out the code for a button for application where i take test from a richtextbox read it and change the color and font i have made the application for it, with 3 buttons. find, find next and replace.
frmTextEditorMain.rtbxInput.SelectionBackColor = Color.White
frmTextEditorMain.rtbxInput.Find(tbxFind.Text)
[code].....
First it might sound like an ordinary task but keep reading it isn't. I can't figure out how to find a phrase in a text file, and replace it with something else. Tried lots of things but always ending up with empty hands.
Suppose there's a text file in this order:
valueabc=6000.0000
valuettt=200.0000
valuexyz=7000.0000
I want to;
1) Find the phrase (e.g. valueabc) by scanning the whole text,
2) Replace the number that starts after "=" and ends before ".", namely "6000" in the middle with any number value i want.
I don't need the parts before "=" and after ".", only the number in the middle.
How can I specify in my string that I want to replace occurrences of ALL characters and replace them with a specified character? Something like this:
'assuming currentWord is a string that contains any word
_myWord = CurrentWord.Replace("a-z,A-Z", "*")
VB.net VS 2008
I need to develop a small application which can do a batch find and replace on all xml files within a folder. Example:
<cardHolderName>
<firstName>Geraldine</firstName>
<middleName>
[Code].....
I want to replace ALL <firstName) tags to John and all <lastName> tags to Smith to protect sensitive date. In addition, there will be other tags such as address, ss number and phoneNumber.
NOTE: There may be multiple instances of <firstName> within the file. 1000 xml files with all replacing names, address etc. with the same fixed name such as John Smith These will be used for testing and to prevent sensitive data from being leaked
There is no doubt that I can do this the long and dirty way. (I am working on).
i have created a template xml file witch contain some words like {contentname}.i need to replace such a tags with my values. how to search such a words and replace using filehandling in vb.net my xml templatefile is like this:
<!-- BEGIN: main -->
<?xml version="1.0" encoding="UTF-8"?>
<OTA_HotelSearchRQ xmlns="http://www.opentravel.org/OTA/2003/05" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
[code]....
I have a listbox where each line contains a short 3-4 character model number followed by a tab and then the product name the model number corresponds to. I also have a textbox which I am using to search the listbox.
The code I am using so far works somewhat, just not exactly how I would like. If I enter search text it will highlight the results in the listbox but only for the first characters, is there anyway to search the text of an entire line (index) of a listbox?
Right now I am using the following:
Private Sub txtSearch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSearch.TextChanged
ListBox.SelectedIndex = ListBox.FindString(txtSearch.Text)
End Sub
I have this code attached to a button
If htmlText.Contains("<frame src='demo.html'/>") Then
htmlText = htmlText.Text.Replace("<frame src="demo.html/>", "<frame src='" &
OpenStory.FileName)
[code].....