Search For A String Pattern In A Binary File?
Oct 26, 2010I want to search for a String Pattern in a Binary File (Binary File is not 100% plain text). Here is the pattern:
"**_*_*_*"
or
"111_11_11_112"
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Search String For Pattern?
Jul 6, 2010Is there a way to search for a string pattern in a string ?
i have 1000 of strings and example of one is - 'won 2 races in town, 1998, and then moved to'i wish to search for the ", ####," as all the strings are in the same format (note that the year is different every time hence why not using the instr)
Creating A Search Function To Search Through A Binary File?
Jan 5, 2010I'm creating a search function to search through a binary file and find a record based on the users input. Surprisingly, that isn't the problem! The problem I'm having is that as part of this I'm using a procedure to display results in text boxes, and I'm getting the error "Too many arguments to private sub display customer"I've encountered this error before, but never really knew what it was... Here is my code.
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
FilenameCust = "F:\College\CustomersFile.bin"
[code].....
Search MS Word Binary File For Specific Content?
Mar 4, 2011I have some .doc binary files stored in my database and i would like to now search them all (without converting them to .doc) to see which one contains the word "hello" for instance.
Is there any way to do this search in the binary file?
Use A Binary Pattern When Drawing A Line?
Nov 29, 2010I'm using vb10.
Is it possible when drawing a line to use a binary pattern? Is there a command for this?
Example:
167 is 1010 0111
Draw a line X32 x Y1 would be: 10100111101001111010011110100111
205 is 1100 1101
Draw a line X32 x Y1 would be : 11001101110011011100110111001101
1's being pixels drawn and 0's not.
Program That Demotrates Binary Search Tree Operation(insert, Delete, And Search)
Jun 10, 2011With writting a program that demotrates Binary Search Tree operation(insert, delete, and search)in VB.N NET?
View 1 RepliesRead Binary File And In This File Found The String And Replace It With Other One And Save The File Afterwords?
Jan 11, 2011i need to read binary file and in this file found the string and replace it with other one and save the file afterwords. I found many example to read binary, but to find and replace is for me mistery.
View 3 RepliesVb8 Code To Open A Txt File - Search For A String In It & Extract String In A Excel File
Oct 11, 2010i need a vb8 code to open a txt file,search for a string in it & extract string in a excel file.
View 2 RepliesWrite A String Into A Binary File?
Dec 2, 2011I want to write a string into a binary file.The length of the string is 22 position 1036
Write name in that chain, the length of the name varies but is always between a length of 22.
As I can fill the remaining length of the string with blank spaces?
The empty spaces in hex is "00"
Modify SQL Search To Use Pattern?
Feb 9, 2011It is for vb.net 2008 with access database.At the moment it matches based on paramValue, and needs an exact match.How can I change it to look for a pattern instead?? For example I want anything that contains the text "Fizz" and then "Bom".[code]...
View 2 RepliesResharper Search With Pattern?
Apr 16, 2012I use resharper 6.1.I use VB.Net and I want to search for this. for all the help.ShowHelp things and put those in a wrapper.So I have something like this.
Private Sub BtnHelpClick(sender As System.Object, e As EventArgs) Handles btnHelp.Click
Help.ShowHelp(Me, HelpFiles.AuditTables, HelpNavigator.TopicId, AudittablesContext.AuditTables)
[code]....
Save Both String And Images To The Same Binary File?
Jan 20, 2011I'm wounder if it's possible to save both string and images to the same binary file? I know that you can save them independently with one file for strings and one for images. But i would like to save both in to the same file.
If it's not possible with binary files, when what's my options?
VS 2010 Read A String Into A Binary File?
Sep 18, 2011I want to read a string into a binary file. This string is repeated every certain length ... example:
Start Offset: 694
End Offset: 2248591
Long of string: 25
Sequence Length: 110
I want to read the file and add the strings in a listbox.
Convert A String To Binary Code For Build A File?
Oct 13, 2011well in a database is saved a binary code (this is a *.jar) i need to download this code (with a select query) and Rebuild this file
What are the setps for convert since a String to a File?
someone told me i need convert it to array byte, but i dont know how to convert a String to a array byte... what are the best steps?
this code return me a table
Public Function ConseguirCatalogo() As DataTable
Return conn.RegresarTabla("select archivo from catalogo where id= (select id from periodos where actual=1)")
End Function
[Code]....
now what are the next setp for convert it finally to a file? ( it is a *.jar)
Finding And Replacing Data In A Binary String (or File)?
Feb 9, 2010I have a binary file. If I look at it with a hex editor, the first values are:208, 207, 17, 224, 161, 177, 26, 225, 0, 0, 0, ... etc.It has a length of 330240 bytes I have tried to open it and read it into a string so I can manipulate it and write it back. No matter what I use, I either don't get the correct number of bytes or the values in the string are incorrect. The most common error results in the first values being: 63, 63, 17, 63, 63, 26, 0, 0, 0 .... etc.It is interesting that it appears that any value > 63 becomes 63.
I get the 2nd values by a simple loop:
For lnx = 0 To 99
Debug.Write(Asc(line.Substring(lnx, 1)))
Next
I have tried a whole number of ways to read in the file, including filestream, My.Computer.FileSystem.ReadAllText, File.io.readAllLines, etc.All either give me a string length of about 324000 (not sure why) or, if they do, don't have the correct values. Yes, I have tried various encoding options.
I need to find a string (sort of like: "D" & Chr(0) + "L" & Chr(0) + "S" & Chr(0)... ) so I can then replace that portion of the string with a new value, then write out the file.I use the ".indexOf" to find the data in the string.Why can't I load the file into a string? Or, do you know of an easy way to find some text (similar to above) in a file and then replace the next x number of bytes with a new value and close the file?
Read A String Into A Binary File Encoding.UTF8?
Jan 24, 2012How could i read a string into a binary file Encoding.UTF8.(the string has a length of 25 bytes)
Using fs As New FileStream (OpenFileDialog1.FileName, FileMode.Open)
fs.Position = 2096
Using br As New BinaryReader (fs)
For x As Int16 = 2 To 25
[code]....
Datatable Select() - Search For Numeric Pattern
Dec 20, 2011im having a problem with the Select() method in my datatable. If i want to search in my DataTable for multiple patterns (search function) For string Columns the 'Like' works
[Code]....
Read From Binary File And Convert Byte Array Into String?
Jun 22, 2012I'm trying to read the binary data from a binary file with the code below but the it's return the value in the byte array. How can i read the binary data from the binary file and then convert the data into string?This is how i create the binary file.
Dim fs As New FileStream(Application.StartupPath & "Agency.dat", FileMode.OpenOrCreate)
Dim bf As New BinaryFormatter()
Call bf.Serialize(fs, GAgency)[code]....
Pattern Finding In Files Using Byte Arrays And Multiparted Patterns To Search ?
Nov 28, 2011As a continuation of my other thread, "Finding A Pattern without a string Array (http:[url]....)", I would like to continue asking questions about enhancing a scanner with a few things:
1. Here is my code for finding signatures in a file:
'First the Signature Class:
Interface Signature
End Interface[code]......
Binary Search In ListBox
May 17, 2010Binary Search in ListBox
View 4 RepliesBinary Search Not Using An Array?
Apr 11, 2011I am trying to write a program which performs a binary search. The user will input the name of a state in a textbox.I have a listbox which is populated with the 50 states in ABC order.The middle of the list must be determined and then determine which half of the list the state may be located. If the middle item is less than the state name the state should be in the second half of the list. If it's greater than the state name is should be in the first half of the list. The calculation for looking at the middle itemi the list is:
middle = CInt(first + last)/2)
There is a variable 'flag' which is initially set to false and then will be set to true if the state name is found. The variable first is initially set to 0 and last needs to be set to one less than the number of items in the list.Below is a very rough program fragment.
Code:
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
Dim i As Integer
Dim flag As Boolean = False
Dim first As Double = 0
[code]....
Create And Search A Non-binary Tree?
Jan 17, 2012I need to compare two tree-structured reports and show comparison results in a datagridview in vb.net. I think using tree structure should be efficient. But note that I DO NOT use a tree view to display results (I found a lot of help in tree view though). All I want to do is to construct two trees, and then search the trees and compare. I do not know how to write this in vb.net.
View 1 RepliesBinary Search Algorithm Applicable To VB 2010?
Sep 24, 2010Im currently using the streamreader/writer method for writing to a text file im considering implementing a binary search to increase the efficiency of searching through records.
Qus: Does binary search require the text file to be a binary file?Do I need to do binary reader/writer instead of streamreader/writer And are there any tutorials regarding binary operations in vb 2010 this is my first attempt at coding binary operations and have no idea where to start
Binary Search Array - Show Entered Value
Aug 4, 2009We need to show the value entered and the number that it is compared to in the textbox and concatenated to the binary array. This is the code that I have so far:
Public Class Tester
Shared array1 As Integer() = New Integer(14) {}
Dim count As Integer
Public Sub Main()
Dim i As Integer
[Code] .....
Binary Search Tree Delete Method?
Apr 9, 2011I have a delete method for a binary search tree. It only deletes the last two entered values. When trying to delete the root or anything to left of it it returns a null pointer exception.
PublicFunction Delete(ByVal key AsInteger) AsBoolean Dim current AsNode = root Dim parent AsNode = root Dim isLeftChild AsBoolean = True While (current.value <> key)
parent = current If (key < current.value) Then isLeftChild = True current = current.rightNode Else
[code].....
Binary Search Tree Sample Code In .Net?
Mar 13, 2010Anyone knows where I can download binary search tree for VB.Net ? I'm working on a small project for my company and I'm thinking of using BST as a sorting tool.I used to do BST using C++ and I was using linked list. I'm not sure if that can be done in VB.Net but is there any other ways? any input and comments are welcome.
View 1 RepliesDisplay Multiple Results With Binary Search?
Aug 14, 2011I want to produce a search that lets me have multiple search results but it only returns one.[code]...
View 14 RepliesIDE :: Selection Sort And Binary Search With Words?
Apr 28, 2009I have an array of words that must be sorted alpabetically using selection sort, I must then be able to search the array with a binary search. I just can't get my head around how you would go about doing it. I know that the words must be first sorted into alphabetical order. Here is the code for selection sort with numbers:
Dim pass As Integer
Dim count As Integer
Dim minmax As Integer
Dim temp As Integer
[code]....
How would you apply that to an array of strings?
VS 2010 Binary Search Of Arrays/Lists?
Dec 15, 2011my binary search isnt working, i think it has to do with the fact that im using a list and its searching thru an array
List
Option Strict On
Public Class Form1
[Code].....
Search And Get Index String In A Big File?
May 22, 2011How to search and get position a string in a big file?I have searched in forum2 and get several ways to search for strings in files, but it is not for large files above 500 mb,I have just been make a function to search string and get its index,but it is very slow and uses lots of RAM.This is my function
Function StringInFile(ByRef fs As FileStream, ByRef
substring As String, Optional ByVal occurence As Integer = 1,_
Optional ByVal start As Integer = 0, Optional ByVal count As Integer = -1) As Integer
[code]....