Creating A Search Function To Search Through A Binary File?
Jan 5, 2010
I'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].....
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Jun 10, 2011
With writting a program that demotrates Binary Search Tree operation(insert, delete, and search)in VB.N NET?
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Nov 14, 2009
i am trying to create a search function/filter for a list box basicly when i type a letter or letters into a text box i want the listbox items to be filtered so say i have 5 names in the list box as follows:
[Code]...
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Oct 26, 2010
I 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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Aug 23, 2009
Im making a search function for an application and they need to be able to search by any value in the DB in any of the three tables. Im wondering the best wayto about this. 2 of the 3 tables have the same columns while the last one is totally different. Below is what I kinda "thought" itd look like but no.
"SELECT * FROM cases, opencases, staff WHERE Crime ='" & txtsearch.Text.ToString & "'"
I need to query the results the user can search for anyterm and if it matches something in the columns it return it to the user. Im wondering if the best way to go about this is to maybe query all the tables and then put all the matching records in a seperate table and the dgv look at that table or how to exactly go about it.
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Mar 4, 2011
I 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?
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Apr 13, 2009
I am creating a search function which searches a database for keywords in a selected field in FilmTable (name of table to be searched)
This is the SQL I am using:
CODE:
It is saying there is an error in the FROM syntax
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Mar 4, 2012
The code search for the specified bytes in jpg file and when first match is founded msgbox gives you position of the bytes in the file and Function stops. [Code] Now, because I am newbie to VB I have one question. How can I change the Function so that Function search the whole file for all byte matches?
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May 17, 2010
Binary Search in ListBox
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Apr 11, 2011
I 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]....
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Jan 17, 2012
I 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.
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Sep 24, 2010
Im 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
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Aug 4, 2009
We 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] .....
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Apr 9, 2011
I 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].....
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Mar 13, 2010
Anyone 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.
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Aug 14, 2011
I want to produce a search that lets me have multiple search results but it only returns one.[code]...
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Apr 28, 2009
I 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?
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Dec 15, 2011
my 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].....
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Apr 9, 2011
I have a delete method for a binary search tree that only deletes the last two values that were entered in, and when it tries to delete anything to the left of the root or even the root itself it returns a null pointer exception.
Public Function Delete(ByVal key As Integer) As Boolean
Dim current As Node = root
Dim parent As Node = root
Dim isLeftChild As Boolean = True
[Code]...
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Dec 25, 2009
Couldn't think of a better title.(Background on the problem/me)Okay, so, first question/post here, so hi. Now that that's done with, the information pertinent to my problem. I'm fairly new to VB (and programming as well, aside from screwing around with C++ and learning assembler(well, attempting is the better word) god knows how many years ago), and have only seriously been programming for about under half a year, and my skill level is about at that stage. Only been using VB.Net, nothing older. Depending on the time of day and if I'm home or at school, I fluxuate between VB express and Vis Studio 08. Umm, this program I'm having trouble with was on a test that I took yesterday (took the problem home with me cause I really wanted to figure out what was wrong with it).
The stipulations of the test were:
No For->Each Loops
No using Built-In Sorting or Searching Functions
[code].....
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Dec 31, 2009
i want to ask that how i can open a search page in my vb.net webbrowser with a separate textbox in a tool bar separate from the url text box
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Dec 15, 2009
I have a datagridview with 2 columns, 1 is Batch_Number and another is Existing_Stock, there is about 6000 rows.My question is, I want to be able to write in a TextBox and hit a Search Button to search the Batch_Number column and filter out or highlight the row with the matching number to see the Existing_Stock
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Jun 11, 2011
How can I search, for example ID Number, and want to highlight the listview item found in search from my first form? I'm using combobox from my second form to search.
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Nov 22, 2009
I'm using SQL as a database in VB 2010, I already add a table to my form as a datagrid view but I don't know how to add buttons for filtering, deleting and adding things in my table, for example I want to have one button on my form call it search button to search in table names or Phone Numbers. how can I do that and where shall I write the code?
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Sep 27, 2011
I have written some software for a company I want to start, basically I want to supply automotive parts. The software I have created uses a database to hold information for users, parts, suppliers and so on.I want to write in a search bar so I can search for a part by name.The code I have written so far for this form is basically what is created when the new dataset wizard is used.[code]I have a datagridview that loads the data for my partslist table, underneath there is a textbox control for my search bar and a button to perform the search, underneath that I have placed another datagridview control to receive the results from the search.Can anyone help me write code to perform a search and place the results in the second datagrid control.
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Jun 5, 2011
I have been asked to write a search screen for a rooms booking application.I have kept the design nice and simple so all the user has to do is enter the dates they want to book a room for and the results are shown in a datagrid view, if no rooms are available for that date a message is shown.I have absolutly no idea where to start with the code.I have written the code for the connection to the sql database, but this is as far as I get, everything I have tried so far just hasn't worked.
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May 26, 2009
I'm in a bit of a quandry. I am trying to build a simple search form where the user selects the column title and in puts the criteria then clicks the search button. This is the code I am using
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
details = ComboBox2.Text
'column name selected by user
specifics = TextBox1.Text
'criteria input by user
[Code]...
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Aug 3, 2011
when you want to use the search engine and when mouse cursor move in textbox search you'll see a small word ("Search") or ("Enter your Search term")
[Code]...
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May 7, 2010
Lets say a search engine is doing a search by date range. If we want to further expand the search by decreasing the date range by looping with date range one month close to end date how would you change the parameters?
For example if these are the date parameters:
start date = 05 / 07/ 2009
end date = 05 / 07/ 2010
050709 - 050710
Thats my set range; so now I want to change the range by month like this
050809 - 050710
050909 - 050710
051009 - 050710
051109 - 050710
051209 - 050710
050110 - 050710
etc
How can I use a loop to set this up? the year has to change accordingly when month hits 12.
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Jun 22, 2010
i am creating a search system i have one of y search querys working but when i try to do the same on a different part of the project i get this error message and one of my text boxes underlined message is : -
Error1 Argument not specified for parameter 'Param4' of 'Public Overridable Overloads Function GetDataBySearch1(Site As String, Postcode As String, Site1 As String, Param4 As String, Param5 As Object, Param6 As String, Param7 As String, Param8 As String) As WincantonDataSet.SitesDataTable'.C:search_Systemsearch_Systemsitesearch.vb2026Wincanton_System
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