Extracting Numbers From String?
May 9, 2009
This is my second post on this topic. I included all the code this time. In calculate click event the value is zero and I don't understand where I went wrong. My work is due tomorrow, if anyone can tell me why I can not extract the price from the string. What this program is doing is taking items from the stockListBox and adding them to the shoppingList Box then extracting the price from the shoppingListBox and adding the prices together.t a note- in public class I changed the string and seperated the price from the item, not sure if I was suppose to do that.lso, everything works except the calculate event.
0
Public Class SupplyCalculator
Dim lists As String = "staple" & "stapler" & "folder" & "notebook" & "pencil" & "eraser" &
[code].....
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Feb 1, 2009
I am trying to extract numbers from string text. e.g. 1 day (8 hours)' I need the one and the eight integers pulled out I would like to extract then store each number separately for use later. I am aware of techniques to count string text, but not pulling certain information from it.
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May 6, 2009
1. allow the user to specify a folder in which to find a specific text files,
2. to read a few specific numbers within each of those few text files, (eg. in txt file A, #A = '1', in txt file B, #B = '2', etc)
3. place those numbers into multiple comboboxes, (eg '1' into CB1, '2' into CB2, etc)
4. allow the user to change the number from the combobox drop down list, (eg CB1 change to '2', CB2 change to '1', etc)
5. Click to overwrite the old numbers in the text file with the new numbers and save the text files
My main problem is no. 2, how do I read a specific string in the text file and display it in the combobox?(Win XP, MS Visual Basic 2008 Express Edition with sp1)
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Jan 30, 2012
I'm brand spanking new to coding (as well as this forum). And I'm learning Visual Basic 2010 in School. Right now I am working on the following problem: "Use a masked text box to as a user to enter a phone number in a format as follows: (604)323-5819. Make sure you add input mask to the area code and phone number. Both the phone number and the area code are required. Then extract the area code and display it in a text box when a button is clicked." Here is my code, I've got it where I can input the number, and when the button is clicked (things actually appear in the text box!) however instead of getting the area code, I get "als" or alternatively if I put (0,3) I'll get "fals" I don't understand what I'm doing wrong or even where "fals" is coming from. Can someone please explain to me what I'm doing wrong? I've literally been at this since 4pm today and only just (midnight) able to get it to this point and I'm incredibly frustrated as to where these letters are coming from. [code]
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Nov 7, 2009
I was just wondering how to extract or parse any particual tags (whichever I specify) from webpages. I know how to extract text and links from webpages, but I tried to use the same method from the following code for div tags, title tags etcetera and it doesn't seem to work:
[Code]...
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Jun 7, 2010
Does anyone know of a way that you can get the string that is held at this reference point (its the contents of a registry value that corresponds to a string - see this thread for more info [URL]
@%Systemroot%system32wbemwmisvc.dll,-204
I think I've seen C# (or maybe C++) code use lines like this but I cant find any way of getting the value from the DLL in VB.NET
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Jan 3, 2012
My program uses the serial port to receive characters as a string, then it should extract the integers from this string. This seems fairly simple, but so far has been a very tedious job.
My string is called txt. The problem is that there's no telling how many characters / integers txt will hold at any given moment. For instance, it may equal "4" or "4 5 6 7" or "P 0 1 2 3 4 5 6...255" - with spaces included. I need to reference every number within this string to use as data. I've tried the following:
dim c as new char
dim n as new integer
dim i = 1
[Code].....
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Sep 28, 2009
Many types of credit cards have the same format. This format is XXXX-XXXX-XXXX-XXXX, where X is a digit.The dashes are embedded into the string containing the card number.Create a console application to * Declare String variables Partl, Part2, Part3, Part4, and InputString. * Read a credit number consisting of 16 digits only, no hyphens, into InputString.* Write the statement(s) to extract each four-digit segment into Partl, Part2, Part3, and Part4* Display the four parts.This is what I have, and I cannot figure out what I'm doing wrong because there is an error when it runs.
Sub Main()
Dim inputString As String = "1234567891234567"
Dim part1, part2, part3, part4 As String
[code]....
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Mar 5, 2012
I m trying to write a program that is mostly dynamic. This program enables the user to read in several inputs (temperature, pressure .) and perform calculations on those inputs. After that the program sends an integer to an analogue output port. The program automatically determines the number and type of the inputs. It also creates something called a variable handle for each input.This is then saved to an array input_handler(0,x). That array is sized this way input_handler(0 to 1 , 0 to 9)
0= handle (integer)
1= value (integer)
The program dynamically creates a button for every input. There also is a button for every mathematical operator. This way the user can create a function by pressing buttons.This function will be saved to a string. That string will look something like this input_handler(1,0)+ input_handler(1,4)/ input_handler(1,3)Well now Im stuck with a string and VB will obviously just print out that string instead of calculating anything. Is there any conversion I can perform so that string becomes the actual array values?
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May 12, 2011
what is the command line to single out certain parts of text from a string only..for example string = "Hellodullardtomboy".what is the command to capture only the word "DULL" between "hello" and "ardtomboy" only.
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Jun 5, 2009
I just want to know how to get year value and month value from extracting a string in VBA of Access.
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Jul 25, 2010
I have a string in this format :
[Code]...
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Feb 18, 2012
lets say webpage has 2 strings named sampleObj="sample1" and sampleObj="sample2" Even though sampleObj remains the same the text inside, however, changes.How would you loop inside page and get sampleObj text each time? I tried Regular Expressions and GetElementsByTagName but no luck.
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Aug 30, 2011
I have the follow row of sample data:
Quote:
RickiKitt10|NzMyMQOTkQ|173.234.120.242:62063:accessworld:bYRLngChRYc||RickiKi1037||
How can I extract the IP address? 173.234.120.242
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Mar 14, 2009
basically i have heap loads of text in a sting.I want to be able to extract text between two point in my string.So say for example want to be able to extract the text between the two brackets.
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Sep 11, 2009
I have been trying to implement a user account system and storing name, email and score gained from completing a lottery game that i have created, is there a way to create a note pad within the program folder when button1 is clicked and the same data
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Oct 11, 2011
However a coworker and I are wanting to build a separate program instead of just running simple scripts.I'm running into the following problem:I am not sure how to program visual studio 2010 to the extent that when we paste in predictable text structures that it will take only certain items out of the text, assign them to variables that we can call later.Example:We log into a lot of UBRs for testing and the structure is basically thus:
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Nov 23, 2009
I am using an API (WSUS) that will give me an XML fragment that I need to work with. Essentially, I need to go through the fragment element by element, identify what type of element it is, and then put that element into the datagridview. The goal is to have a column with a human readable interpretation of the element, plus that actual element itself in a hidden column for further processing. So, using the below XML, I want the DGV to have column that says "Begin Or Group" and a hidden column with "<lar:Or>".
I can get an xmltextreader to loop through the elements just fine, but I can't figure out a way to return just the current element in XML. I've tried ReadString, Value, ToString, and a bunch of other stuff but just cannot seem to figure it out.
Here's an example fragment:
<lar:And>
<lar:Or>
<bar:WindowsVersion Comparison="EqualTo" MajorVersion="5" MinorVersion="0" ServicePackMajor="4" ServicePackMinor="0" />
[code]....
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Jun 6, 2012
Basically this is my problem, showing the results of a string. I am making a program for a customer and he wants to be able to extract a string or set of emails from a large group of text. In this case he wants to be able to copy a webpage and extract all the emails out of the webpage. The problem i am having is showing the results of the List(of string) Function. So far, I can copy the page, paste the content to a textbox and then i have a function that is supposed to filter out the emails and paste or Show them in a list box.
I dont know why but no matter what I do I always get this error:
Error1Value of type 'System.Collections.Generic.List(Of String)' cannot be converted to 'String'.
This happens when I try to output the return results to a textbox or list box.
Here is the code for the whole program:
Entire Program Code:
Imports System.Text.RegularExpressions
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
I have tried almost everything I could do, I am relatively new to string functions so that is my main problem.
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Feb 23, 2012
I have a text file I'm trying to pull specific data from to make a report in excel and am wanting to know if my code can be improved or if I have something wrong. If it's apparent to anyone that I should be doing something elThis code does work but, very slow. These reports take up to 20 minutes for about 100 files so I am wanting to decrease the time somehow. I have attached the whole sub in a text file, it's about 900 lines long so don't think I should post all of it. This is one part that seems to take the longest:Partial code that reads the text into a string, then each line is read to find whether it holds the data or not. Inside this while loop, I am checking numerous lines to see what they hold and extract specific items. First I verify it's a interface by checking for "line protocol".
Dim str As StreamReader = File.OpenText(filefound)
While (str.Peek <> -1)
If txtLine.Contains("line protocol") = True Then 'Found an interface,
[code].....
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Apr 25, 2012
I have been working lately on a program who extracts URl Source codes!The program does work with most of URL but not for MEdiafire URL!When i check the source code from the web browser i can see there is some code missing;y tried diferrent types of Encoding.
Example:This is the final source code extracted from WEBBROWSER(Firefox,InternetExplorer,GoogleCrome)
--------------------------------------------------------------------------------------------
<div class="mf_lightbox_btns lb-footer" style="text-align: right;">
<a href="javascript:void(0);" class="secondary btn" onclick="$('body').removeClass('has-virus'); return false;">Dismiss Message</a>
<a href="http:www.bitdefender.com/mediafire/fix-it.html" target="_blank" class="alt btn">Get BitDefender</a>
[code]....
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Jun 12, 2011
The string itself contains things like "random" & random.next(1,3) & "random2" etc. The string registers all of this as a string and doesn't actually calculate random numbers.Is there any way to fix this?
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Apr 10, 2009
I'm having a problem converting a string of letters to a string of numbers. I've tried:
Dim A As String = ""
Dim strOutput As String = ""
Dim X As Integer = 0
[Code].....
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Dec 21, 2010
i am working on a project to extract all md5 hash from a text file;btw i don't mean the text file hash i talking abt the hash string inside the file?
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Sep 28, 2011
I have the following column values in my table Sample values:
[URL]
I want to have 2 variables having the links and content separate - example:
[URL]
I guess it can be done via String functions or regular expression.
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Sep 29, 2009
I know you can just use integer.parse to convert a string to a integer, but I need something else.I have a String like this:
001010000000101
Now what I need to do is place al those digits in a array like this:
Dim example() As Integer = {0,0,1,0,1,0,0,0,0,0,0,0,1,0,1}
What I am doing now is this:
Dim text As String = "001010000000101"
Dim collection(15) As Integer = Nothing
For i = 0 To text.Length - 1
[code]....
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Nov 17, 2011
i do have a medium knowledge of Python, HTML/CSS. I am working on my first basic program. a simple calculator. Buttons representing numbers 0-9 Buttons with + - x / = and a clear button.
So what ive done is created a string, and when the user hits the button, it adds that value to the string (hit buton 4, it adds a 4, hit the minus, it adds a -)
i need a "function" that grabs that string, uses logical math on it, to determine the answer. I know in Python you can use: Eval(STRING NAME)is there an equivelant for VB?
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Aug 25, 2010
I need a vb function to determine the last numerical characters in a string. For example, if the string is Step1, I need it to return 1. If the string is Step32, I need it to return 32.I'm aware of the string functions like Right, Instr, etc but I'm just not sure how to get what I need
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May 26, 2011
Dim number As String = "07747(a)" If number.... Then endif I want to be able to check inside the string to see if it only has number, if it does only contain numbers then run whatever is inside the if statment? What check do i use to check if the string only contains numeric and no alpha ot () etc ..? What i am trying to check for is mobile numbers, so 077 234 211 should be accepted, but other alphas should not be
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May 9, 2009
I included all the code this time. In calculate click event the value is zero and I don.t understand where I went wrong. My work is due tomorrow, if anyone can tell me why I can not extract the price from the string. What this program is doing is taking items from the stockListBox and adding them to the shoppingList Box then extracting the price from the shoppingListBox and adding the prices together.
0
Public Class SupplyCalculator
Dim lists As String = "staple" & "stapler" & "folder" & "notebook" & "pencil" & "eraser" & "pen" & _
[Code].....
View 1 Replies
