I have an array (Items) which holds lots of instances of a class (Item).Item has 2 properties, a Group and an ID.there may be more than Item in the array(Items) that have the same Group and ID properties.How do I "search"/get the first Item which matches a specified Group and/or ID
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I previously posted a Question about code that uses a function to return the frequency of characters in an array. I have now got this code.
View 5 RepliesI am learning about the search capability in an array. I wrote a code that stores three names (first & last) and I want to:
- Make the user select a number (from 1-3) by using a (combobox)
- If the user select the proper number then a message will appear that the name is there.
- If not then an error message will appear.
I did all I could by creating this but my main problem is in the (ButtonFind). I went through lots of tutorials and this is what I came up with and I hope that my code is correct.[code]
I need to write a program that allows the user to input student's names (in textbox) and their studentID (using array) and searching (by name and id). the list of the student data should display in a gridview.
View 1 RepliesI am having trouble writing a loop that will check to see if a random number exists in an array.Let me Elaborate I have a function that returns a random (integer) number between a range called GetRandom()I want to execute GetRandom() and then check to see if MyArray() contains the new number, if it does not contain the number then I want to add it to the array, if it does contain the array then i need to run GetRandom() again until it doesn't contain the number.how to determine whether to throw the number out or add it to the array.
View 1 RepliesOkay so I have my array and I am trying to search it, is there a method for this
View 1 RepliesWrite a program that requests a color as input in a text box and then determines whether or not the color is in the text file. The program should use the Boolean-valued Function procedure IsCrayola that returns the value True if the color in the text box is a Crayola color.
Public Class Form1
Dim colors() As String = IO.File.ReadAllLines("colors.txt")
Dim IsCrayolaAnswer As Boolean = IsCrayola(colors)
[code].....
i'm having problems creating a simple button for a programme which finds the largest word in an array and puts it into a textbox. I've done most of the coding (I hope) was wondering if somebody could help me actually with the code that finds the largest text in the array as I am struggling the most with that.
Private Sub btnLongName_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLongName.Click
Dim LongName As String
Dim LengthOfLongestName As Integer
[code]....
Say I have an array of doubles sorted from smallest to largest. What is the FASTEST way to find the closest value in the array that is LARGER/SMALLER than the search value if an identical value is not found.
Code:
dim myArray() as double = {1.245, 2.45, 3, 4.556, 5.4434}
'LARGER AND SMALLER SEARCH for 3 should obviously return 3 because its in the array.
'LARGER SEARCH for 2.46 should return 3 because it is the closest LARGER value
'SMALLER SEARCH for 2.46 should return 2.45 because it is the closest SMALLER value
I certainly can do this on my own, but I am looking for the fastest way.
I need to search a Byte array for the existence of another Byte array. The first array is large, about 30,000 bytes and the second varies but is usually between 300 and 500 bytes. I need to know the start position of the second array inside the first. For example if these were the arrays:
Code:
Array 1 Array 2
00
34
00
23 23
00 00
64 64
00 00
41 41
00
45
92
33
I would need to know the start position is 3.
Code:
For x = 0 To UBound(Array1)
If Array1(x) = Array2(0) And Array1(x + 1) = Array2(1) And Array1(x + 2) = Array2(2) Then
' Found it
End If
Next
And loop through finding it by brute force but array 2 will be a different size on each system so doing the above, although I could make it work, isn't practical. I could even do multiple if's like if I find the first byte then find the second, then find the third, and make it a little more bearable but still. Is there a simple way to find a array inside another array?
I'm trying to search an object array for a particular object and return the index. g always ends up being -1 even though I'm expecting it to be 0. What am I missing?
Private Sub btnX1_Click(sender As System.Object, e As System.EventArgs) Handles btnX1.Click
Dim g As SByte = Array.IndexOf(buttons, sender)
MsgBox("If worked: " & g, MsgBoxStyle.OkOnly, "Test")
End Sub
dim buttons() as object = {btnX1, btnX2, btnX3}
Basically, I'm trying to design a function that can get the index of an element from one object array and use that to grab an element from a different array at that same index.
I am working on a program that searches an array for the lowest score then displays it in the label. So far I have coded it in For Next and For Each Next loops, but now I have to do it for a Do Loop. I've gotten it to work if I have the For Next in the Do Loop, but I'm trying to not have the For Next loop in the Do Loop.[code..]
View 2 RepliesI need to write a program that shearches a list obxes and displayes the information that is linked in a text box. How would I do this?
[Code]...
I have a little syntax declare problem in VB.Net.
Dim proxy As USImportoerServiceTypeClient = DMRUtils.CreateAndConfigureClient()
Dim request As New USDeclare_I()
request.DeclareCollection = New US_ITypeDeclare() {}
[code]....
This above code do not work, becase the "US_ITypeDeclare() {}" is empty an only contains a new DeclareCollectionStructure
declare a KoeretoejErklaeringStructure to this an set this date value til "DeclareCollectionStructure.DeclareCollectionValidDate" ?
I'm writing a game in visual basic 2008 and things are going fairly well with it for the most part.. well until today.. I can declare a 1 dimensional array of a class just fine but cannot for the life of me get the syntax right for a multidimensional array. I usually don't have many issues in writing in VB but this is the first large scale program I have ever written in VB2008 and the 1st large scale uses of classes in VB as well
Here is my code to better illustrate my problem here is the class..minus most of the properties Public Class Objectives private zone as Integer private TZone as integer Public Property TargetZone As Integer Get Return TZone End Get Set(ByVal value As Integer)
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So I have a function that looks up values in a jagged array, and it goes like this:
Private Function Lookup(ByVal Search_path As String) As Integer
Dim i As Integer = 0
Do Until MasterIndex(i) Is Nothing 'throws an exception here
[Code]....
Problem is, when I test this with an empty array, it gives me the error of Index was outside the bounds of the array at line 3. How do I fix this?
I have been trying to write code that asks the user for the size of an array , and then takes inputs from the array. They are characters A-E... Then I am to call a function that will count the frequency of A,B,C,D,E . Then it is supposed to send the information to a listbox. Eg. There are 2 A's,There are 0 B's, There are 5 C's..
I have the code for populating the array, but when it comes to searching it for the frequencies..This is what i have so far..
[code...]
I have 2 groups, the information i get comes out as follows.
Dim group1 As String = "3 4 7 8 10"
Dim group2 As String = "0 1 2 5 9"
The placements are predetermined, so when the first perso
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I have built a new class lets say it is called class1
Public
Class Class1
Public s As String ' strings
End
now in my program I want to create an array of them in on the windows form, how do I do this?Class
I am working on arrays and I am currently having trouble with searching and finding arrays. In this example, the user should be able to enter a Name, and it will output that person's stats.
Here is the text file (note, I should be able to go to this text file, add a few more names and the code should still work, which is why I am using loops,arrays,text files instead of if and else statements),
Kobe,29,6,4
Allen Iverson,28,7,4
Jason Kidd,12,10,9
So if the user enters Jason Kidd in the text box, this will display in another text box:
Jason Kidd averaged 12 points, 10 assist, and 9 rebounds.
[Code]...
All right now is the searching part. I really do know how to search for what the user entered and display the statement in a text box. I kind of have an idea of how to just get the name, but for it to get the name and then all the data for that name puzzles me even more.-I tried using .contain, indexof and few others.
I know to display the information in the text box will be something like:
textboxoutput.text = PlayerName & " averaged " & PlayerPoints & " points, " & PlayerAssist &" assist, and " PlayerRebounds " &" rebounds"
So basically, I want it to where the user can enter a basketball players name and display the values for that name.
In the past, I have learned by reading three or four other people's coding and once I gained understanding of how it worked, I could easily write my coding. I've got I will say this is a school project, so I don't expect anyone to just throw coding at me. I'd like to actually learn this stuff! Also, I HAVE read my book (over and over) and also requested help from the instructor, but as I'd like to meet the deadline on this project, I'm having problems waiting on his availability or lack thereof.
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I need to provide a DLL that is consumed by a VBA app (Access 2003, late binding) and returns stuff that is retrieved from various WebServices. These WebServices publish methods that not only return a single object, but also arrays of them.
From the Access-app's point of view, it's no problem to consume i.e. an array of strings. However, there's also methods that return an array of a (proprietary) class. I can't seem to be able to consume such an array from VBA.[code]....
I have written a class for my one dimensional array The idea is to collect user information, put the info into an array and accumulate the value of each item of the array so there is a running total. The problem is that the code is not totalling the array when my btnSum is clicked or maybe at all. I am getting no errors, but I am also getting no total.
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I save the client data into an array list. How to find part of data(currentIP) inside the array list(clientList) with fast method? [code]
View 1 RepliesI can't figure out the syntax for searching an array of stored words for a string matching an input string. I understand the pseudocode of it, but I'm tripping up over what variables I need to put where, and how they should be formatted. More than happy to provide more details should anyone request them.
[Code]...
I have two classes, one nested in the other. [code]Neither "Name" or "ID" are unique between operations and records.I wish to construct a dictionary using LINQ = Dictionary(Of String, Of List(Of Integer), whereby the keys are uniqe examples of Names in my collection and the values are the collective set of distinct IDs that are associated with those names.
View 2 RepliesHow can I structure my classes so that the user interfaces though a single class while the supporting classes are hidden from their view? I think its best understood in an example:
Public Class MyInterface
Public Economic as EconomicClass
Public Sub New()
MyBase.New()
[code].....
So you might ask why am I even separating them? It's strictly for others who will be working with this interface. I need to funnel them though a logical structure:
interface.Economic.MyMethod
interface.Currency.MyMethod
etc
This way everything is already handled for them in the background and they only need to run the method they need. I don't know if I can have it both ways in VB.NET.
So I've been using some code to generate directories and such in a custom treeview, but am looking to expand upon this idea. While it's not using recursive functions, and only calls functions when expanding levels, I'm not quite sure how to put some of these together.find a way to just search through all folders on the PC. If the folder contains audio files, that folder is than added to an array (searching a folder for audio files and adding that folder to an array is done). It's just recursivly searching all folders on the PC.Here is the code I've been using for the treeview (I'm not sure if it can be adapted):
Public Function ListAllDrives() As String()
Dim arDrives() As String
arDrives = Directory.GetLogicalDrives()[code].....
Here is some example code of what I mean:
vb
Public Class Form1
Private Sub Button1_Click(ByVal sender as Object, e as systemEventArgs) Handles Button1.Click
[Code]....
Here is the structure that I have:
Friend Class StandardFormatFile
Friend fileType As String
Friend numberOfSeries As Integer
[code].....
