Reading Strings In Pieces?
Jul 19, 2010how to read a string in pieces.
Let's say the string is 800 characters long. I want to read 100 of them each time. How do I accomplish this?
how to read a string in pieces.
Let's say the string is 800 characters long. I want to read 100 of them each time. How do I accomplish this?
I am currently working on a program that edits txt files but it's for a game. There is a file that contains information that the client uses. This is what the file looks like:
|piece of code here|another piece|and another piece|
|piece of code here|another piece|and another piece|
|piece of code here|another piece|and another piece|
|piece of code here|another piece|and another piece|
|piece of code here|another piece|and another piece|
I want to make a program that reads this file and reads each piece of code separately and places them in different places like this:
[URL]
Am writing code using VB.net 2005 and am attempting to launch a 3rd party console application and capture stdout and stderr strings. Am able to do this but I find that if I want to capture both stdout and stderr strings I have to wait for the process to terminate before I can retrieve any output data. If I remove the stderr read I can capture the stdout data as its being emitted. Thus it appears that the stderr read "blocks" reading of stdout.[code]Does anyone have any suggestions on how to "un block" the reading of the stderr strings?
View 4 RepliesI am fairly new to vb.net but was programming a long ime with vb6 I have a binary file that is a mixture of numbers (integers and doubles) and strings, such as "Programming with VB". I read the numbers using the BinaryStreamReader.ReadInt32 and BinaryStreamReader.ReadDouble, which are no problem
View 5 Repliesim trying to read "calculator" from calc.exe, now i found the mem adress where the value resides but i have a few problems
1) how many bytes should i read? im not just talking about calculator string but potentially any length string, i get different results with 4/8 bytes but same from 8 - 32 bytes
2) when i read i get a long value 27866486557179971 but how to convert that into a string
EDIT: ok by staring at the return value long enough i discovered that when i convert it to hex it spells "calc" backwards, same for all other strings, i could build a working converter based on that knowledge but now what bugs me is where is "ulator" or the rest of the string, the most i can get is always 4 letters
EDIT2: oh nm that, by moving memory adress a step further i get the next letter along with 3 previous ones and still backwards but i can work with that
ok so now next step would be making a search function for which i need to find out the range of memory to scan, anybody know how to do that?
what is the easiest way to step through a string in this manner... I want to have my program look for one keyword and then another.. in otherwords it needs to find "hello56" and THEN find the word "bob" there are so many places the word "bob" is but I need to locate the "bob" thats after "hello56" Hope this example is clear.
[Code]...
I can retreive all items in my notepad but when I am adding them up in my listbox, and trying to print them in the console. I can only display two strings. I don't know why. My string is a combination of a name, space & score. ex: "luke 300". That is the pattern of all strings per line in my text file. I am separating the name and the score using space as the indicator. When ever a space is found, string before and after the space is retrieved and added to the listbox
Here is my
scorelist = New ArrayList
reader1 = My.Computer.FileSystem.OpenTextFileReader(My.Application.Info.DirectoryPath & "scores.txt")
[Code].....
Any example code for reading and writing strings to and from a ControlLogix Processor?
View 6 RepliesAll I am doing is reading each txt file I find in a directory and finding certain strings in the text then counting how many I find in each file and then once each file has its separate counts it send it to a sql database. I have most of it done, but I cant seem to get the count to separate each file so my problem now is that it counts the first file but when it counts the next file it adds to the first file and so on through all the files
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
[Code] .....
I'm trying to read the XML I generated. Here's my writing code:
'XML EXPORTATION BEGIN
'Create the file
Dim myXmlTextWriter As XmlTextWriter = New XmlTextWriter("C:Simple TimerProfiles" + timer_name + ".xml", System.Text.Encoding.UTF8)
'Choose Formatting
myXmlTextWriter.Formatting = System.Xml.Formatting.Indented
[Code] .....
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[Code]....
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[code]....
There is a lot more to the file reading code, but it's proprietary and this is the part that keeps crashing. It runs fine loading the first two files, but when I try to open a third file, it crashes with EXC_BAD_ACCESS at the input.read((char*)names, numStringBytes); line. I don't see any reason that this should crash. I'm writing the binary files in VB.NET using the below code:
Dim myFS As New FileStream(savePath, FileMode.Create)
Dim encoding As New System.Text.UTF8Encoding()
Dim stringBytes() As Byte = encoding.GetBytes("++string")
[code]....
Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
View 2 RepliesI have came up with code in my vb.net app that can extract particular tags, but what if I wanted to extract only certain lines of html code?
<td style="min-width: 100px; " align="right" class="aw-td body-td">4,400</td>
I'm having a bit of trouble learning the uses of partial classes. I know they are used to split a class into several pieces for convenience but I don't understand how to put all of this into play. I'll show you what I mean here:
Lets say I have an interface named "ICar":
.NET
Public Interface ICar
Sub TurnOn()
[Code]....
OK, now that I have all of that, how do I put it to simple use in my partial class "OffRoader"? (You can add a "console.writeline" event to the methods if you want, in order to show me the uses of these partial classes.)
I am working on a project and the code for FORMS1.vb has become quite large, 20K lines.How can I break this down into more managable pieces. I have tried Modules but I get multiple reference errorsd when I move like all of the reporting code to a module. The report code has nothing to do with the forms other than being able to call that code from an object on the form.
View 3 RepliesIn my website I have a textbox that allow user to enter a group of numbers like this:
(118,38,137,15,156,14,157,36,152,49,142,57)
Now i want your help to show me the way to store these numbers in array to be like this:
[118 38 137 15 156 14 157 36 152 49 142 57]
Anyone care to explain why these two pieces of code exhibit different results?
VB.NET v4.0
Dim p As Integer = 16
Dim i As Integer = 10
Dim y As Integer = p / i
[Code]...
Is it possible to add a property to the existing asp:BoundField control without creating a brand new instance to which I'd have to declare <tst:BoundField></tst:BoundField>?
View 1 RepliesAs my company migrates towards the .NET framework from VB6, it looks like we are going in the direction of WPF (my boss is in love with the Office-style Ribbon control). I've been working to mock one of our VB6 applications in WPF and decided to experiment with MVVM at the same time. I'm being discouraged from using an existing MVVM framework, so I guess I need to write my own. The biggest concern right now seems to be a method for registering and managing all my views from a central spot - a manager class - but I'm not exactly sure how to implement this.
View 4 RepliesI wanted to know how to find the code for Chess Titans (Vista) I have the program that can open .dll's and .exe's and explore there structure, I just need to know how to get that code.
View 5 Repliesi am trying to implement a very simple program, that simply copies some text from one window in to an appropriate text box field in the other window. I need to copy and paste about 50 pieces of information from one window in to another.I suppose i can load the entire SOURCE window's text in to a text box control, and then i want to use sendkeys to populate appropriate fields in the other DESTINATION window that i want to populate with this information.My guess is that i will need some kind of windows api (Win XP) to get a handle on the appropriate text boxes in the destination window (or tab through it or something)
View 9 RepliesI seem to have a huge issue right now trying to grab different pieces of a string to place them in a different order in a list. Unfortunately i can't just find the placeholders for the strings and extract the data that way so i was using indexOf to find commas in the string provided. the problem i'm having is that i can assign the first comma and extract 0 - "," but i'm stuck on how to progress the indexof so it will move through the string submitting everything between the comma's.
Public Class Form1
Private Sub btnAccept_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAccept.Click
[Code].....
What i'm trying to do is retrieve 2-3 pieces of information from a parsed html file, then add the data into a listview in the corresponding columns i was initially going to do a function for each piece of information to retrieve but thought maybe i could do it all with 1 function instead.
[Code]...
I have been getting sometimes with SOME libraries (be it included in the framework or not).[code]I'd expect the func.Call() to return an exception if something is up, or do anything to error out, but here it just murders my method which returns instantly! The same stuff here is also in a loop, which doesn't get any more iterations, it just stops executing this function and continues running the program.
View 1 RepliesIn a resource string, not one that you declare in the code, but rather in the resources itself, how do I store multiple pieces of data in it?
View 7 Repliesi can get this program to read the file but i now want to be able to call on the file from another form and use specific pieces of data for login verification and balance handling purposes.
[code..]
above is the contents of my txtfile but how do i reference anything in it?
[code...]
I am trying to come up with a way to store 3 pieces of information for each employee in the company on a daily basis. So for instance
Day 1: Joe, 8, 80
Day 2: Sam, 10, 90
Day 3: Bill, 5, 40
Day 4: Bob, 8, 40
Day 5: Sue, 2, 50
most of the applications that I build are Create, Read, Update and Delete type applications that don't really need arrays so I have almost no experience with either.
VB
'
Dim iDays As Integer = NumberDaysPerMonth(Date.Now)
Dim DayNumber(iDays) As Integer
[code]....
I am working on a UDP Client/Server, and currently i have them sending back and forth strings, which i convert to bytes, and then open the bytes to read. I want to now send an Object instead of those strings, which includes multiple unsigned integers and strings.
View 39 RepliesI have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.
Here is the method I wrote:
Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))
[code].....
It works, but I would rather use built in functions whenever possible.