VS 2010 Extracting Specific Text From A String Is Slow?
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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Oct 19, 2009
I'm trying to extract the text fields inbetween the code but the text is always changing so I'm not sure how to keep this dynamic. In put them in to the proper text boxes.
So text box 1 might be Date: then it pulls the date.
and there are multiple listings. so I need it to loop until the end of </table>
[Code].....
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Jun 30, 2010
In Example : There's a text : You last visited: Jun 29th, 2011 at 10:27 AM And i need to get text
at 10:27 AM The code will be something like this :
label1.text = Gettextaftertext("You last visited: Jun 29th, 2011")
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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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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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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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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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Oct 10, 2010
I have some code that is extracting tracked changes from a document. The trouble is its very slow, taking around 60 seconds to capture each tracked change. I originally thought that pagination was slowing down the code (its quite a large word document). However I have turned that off but its made no difference to the speed of the function.
[Code]...
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Sep 6, 2010
I'm trying to create a small program, which I think will be helpful to others(in here). My aim is to convert the English text shown in screen to Malayalam. English-to-Malayalam conversion is not a problem. But the problem is, how to extract the text from the screen. In most of the converter/translator, the text needs to be copied or written down in the translator tool. But my program will cut off that part. That is, simply move the program window (having a rectangle hollow portion) to the English word that needs to be converted. And upon pressing a button (or autodetect), the English word is converted to Malayalam.
So, my question is how to extract the English text(or words) from the screen (which is seen through the hollow portion of the window.
Here's a screenshot of what I'm trying to do.
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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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Dec 13, 2010
i am a beginner in vb8 i have a text file named alarm.txt,sample alarm.txt file is shown below
can someone help me to read the alarm.txt file and extract data.for eg
[Code]...
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Oct 29, 2010
I'm trying to extract the text between: <label for=field_1> and </label> I have captured the HTML into a string using the webbrowser control, and am using the following function to try and get the text within the tag:Public Function midReturn(ByVal first As String, ByVal last As String, ByVal total As String) As String
[Code]...
However, this code will not work, if I use <label for=field_1> as the first string and </label> as the second.
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Apr 4, 2011
Is there a way to search fast in text file? i have a 5mb text file and it is slow to search ..Im using Vs2008 (VB) and MC3100 WinCE 6 platform
Code
Private Sub DataHandler()
[code].....
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Feb 17, 2011
I'm making a program that will print jpeg's.The way i have it is I have lots of forms with buttons and when you click a button it prints the photo and a databound label with a line of text.The problem is that i want the user to be able to click one and then click another button right after, to print another one, but as soon as i click one, the program freezes until the photo starts printing so the user cant click to print another one right away.Each picture is around 4 mb.Is there away to make it go faster?The pictures i'm printing are from a pdf file with text and images in it that were converted to jpg. Each page is another jpg. Is it possible to print directly from the pdf and would it be faster since the words are 'text' and not a 'photo'?
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Feb 25, 2009
I want to extract a specific information from a webpage.For example:url...So can I make the software see what's between "<h1>Your IP address is<BR>", to "</h1>"?And doing all this by using the webbrowser form in Visual basic studio 2008.
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Nov 1, 2009
I'm trying to get the version of IE and Google Chrome from the registry. I've successfully been able to get IE, but it seems chrome is eluding me.The following code is what I'm trying:
vb.net
Public Sub ChromeVersion()
Dim SoftwareKey As String = "HKEY_CURRENT_USERSoftwareGoogleUpdateClients{8A69D345-D564-
[code].....
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Oct 18, 2010
I have the first part done, ... I can delete all the text before spacific text, ... now I need to delete all text after a spacific point in a string of text.
I'm making a better, and more simpler BandWidth Monitor, and I'm extracting the Bytes Recieved, ... but just the value, and leaving out all the rest of the text.
here ya go, check it out.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[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 29, 2009
I need to extract the whole string if the string has today's date on it. I have already coded a string that displays today's date in the following format - yyyy/MM/dd And I've coded the parsing links bit, now I need to simply search the Listbox and return the first string with the date. [Code]
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May 18, 2012
There's an INI file that I want to access and read information from. This is the complete content of the INI file in question: http:[url]....I believe it is because of the [ ] tags in that INI file. Because they work if I remove the tags.My program has a bunch of comboboxes, trackbars and checkboxes. These items will be filled by the information taken from the INI file.For instance, ini file has these lines;
bCrosshairEnabled=1
bDoDepthOfField=0
bFXAAEnabled=1[code]...
Example: I want the checkbox8 in my form to get checked if bFXAAEnabled has a value of 1 or unchecked if it is 0.
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Mar 29, 2009
omething i am stuck with. I need to basically remove some specific text from a string in a text box.s be used, so it may be best to use some parsing to get the rest of the text after that specific point.
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Jul 6, 2009
What I am doing is creating a simple login and register system. I am going to save the information of each user into a text or ".dat" format and have them placed into a folder called "accounts".The small problem that I have is the "Forgot Password" option. I can't think of how to search all the documents for the e-mail or the username.So basically I need to know if it is possible to do a small search for the e-mail through all the documents in the "accounts" folder.
-I know another option may be databases...but I don't completely know how to use these.
-I have general knowledge of arrays
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Mar 17, 2010
I have a text box that a bunch of information in it. Is there a way to grab specific text from a large textbox? Here is my example textbox and the text that is stored in it:
[Code]...
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Jun 6, 2011
How do I go about removing specific instances from a string. For example, I've got this string [32m50[0m/[33m2[0m/[31m2[0m and I want it to reads as 50/2/2 by removing instances of [31m, [32m, [33m, and [0m
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Jun 11, 2011
I have a groupbox with quite a few checkboxes. I want a specific textbox to have custom string per checkbox in the text box.
[Code]...
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May 27, 2012
I have an assignment due tomorrow, and I thought I had it all figured out but there is one question I don't know how to program. The assignment consists of a form with textboxes in which the user types info about a book (author, title, genre, etc.), which he can save to a textfile by clicking the save button. (At the moment it's not saving it to a textfile but just a 'file', which can be opened with notepad but is of no specific datatype, not sure how I do that, but is less important). There is also a button with which the user can display information from a different, earlier created textfile.[code]
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Jul 23, 2011
I have a code in website:
<h1 class="mf_dI mf_Hblack mf_vmi">
Blabla</h1>
How to get this "Blabla" to my application?Dim rx As New Regex("(?<=<h1 class=""" & Regex.Escape("mf_dI mf_Hblack mf_vmi") & """>).+?(<=</h1>") MsgBox("Name: " & rx.Match(WebBrowser1.DocumentText).Value)
but it don't works.
And. How to get picture from website to picturebox if this picture is in the table like <table style="background:url('/blabla.png') no-repeat"> ??
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Feb 13, 2012
I'm new here and I'm trying to make a little program with Visual Basic (2010 Express Edition).The purpose of this program is:
1) Load the text file lines and split them into a constant and a value
2) Edit the text file lines values
The content of the text file is like this:
[Code]...
This basically split every lines in two parts: the constant ("Name", "Surname", "Age", "Hair") and the values ("Mario", "Rossi", "50", "Black").Now about the second point, I've added a Button1 which should take the Textbox1/2.Text and the Combobox1 selected item and replace the values(aka separator(1)) in the text file. The problem is I don't have any idea at the moment how to do it. What method should I use?
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Jun 28, 2010
Okay, so I've been looking on the web for a way to read only ONE line out of a text file. Recently I've gotten by by creating separate text file for each line (such as a text file named, "Username", another named "Password", instead of creating a single text file with both the user name and password.) Now I am faced with having to do this. I want a quick and easy way, VB won't let me do open file as input #1 for some reason. I just need the second line of text out of this text file. What is the quickest and easiest (and painless) way of doing this?
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