2 Dimensional Arrays Of Control Objects

Jul 11, 2009

I have the read the article "Creating Control Arrays in Visual Basic .NET" (link: [URL]) and I its very good and useful code for 1D array of objects. What if someone wants to make a 2D array of control objects. For example creating a "table" of 8x8 buttons that will be able to change properties by using the arrays x-y coordinates. Something like button(x,y). backcolor.black or similar.

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Control Arrays - Allocating Multiple Camera Objects Dynamically

Jan 19, 2009

I have a VB.NET application and use some third party (closed source) ActiveX controls. One of the controls represents a "camera" (connected over several interfaces) and I try to write an example how to work with several cameras in one application. To do this I allocate multiple "camera" objects dynamically as an array which works as expected like this:

Const NUM_CAMERAS = 2
Private MyCameras(NUM_CAMERAS ) As xxx.MCamera

But the camera objects needs to be allocated with WithEvents because they raise events when a new image was taken. I found out that WithEvents variables cannot be typed as arrays and this is a pretty common problem so I also found some workarounds: [URL]. This is already pretty good and I adopted this to my concept. So I have a MyCameras array and a MyCamera all "without Events", first allocate a new MyCamera object, add a event handler and then put it into the array.

Unfortunately I get an error when calling
AddHandler Camera.ProcessModifiedImage, AddressOf MyHook

Normally "MyHook" is declared as
Private Sub MyHook (ByVal sender As Object, ByVal ModifiedBuffer As xxx.ProcessModifiedImageEvent) Handles Camera.ProcessModifiedImage

Like in the "Button examples" I just removed the "Handles Camera.ProcessModifiedImage" but I get an error that "MyHook" has not the same signature as the Delegate
Delegate Sub ICameraEvents_ProcessModifiedImageEventHandler(ImageIndex as Integer)

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Declaring Two Dimensional Arrays?

Feb 16, 2009

I am trying to set up a number of two dimensional arrays that will be accessed from several forms in the project. I have set up a module to declare all public variables.When I declare the array (Using variables to determine the size of each dimension), when I go to run it, I get an out of index error.If I declare it them as public variables within the form, I don't get the error but then the input cannot be accessed from other forms.Am I completing incorrectly in the module or is there something else I ought to be doing.

The code within the form is

Dim Boardresult(NumBoards, Numteams) As Integer
Dim compass(NumBoards, Numteams) As Boolean

Where NumBoards and Numteams have been input and stored previously.

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Make Two Dimensional Arrays?

Nov 19, 2011

Dim Paper As Graphics
Paper = picBox.CreateGraphics()
Paper.Clear(Color.White)

[code].....

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Merging Two One-dimensional Arrays?

Jul 4, 2011

I have two one-dimensional arrays filled with dates. I want to join them into one array.

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Accessing Two Dimensional Arrays Within A Class?

Aug 30, 2011

Ive currently got this:

Public Class World
Dim StringA() As String
Property SetString() As String()
Get

[code]....

I need StringA to be a Two-Dimensional Array. I've played around with it and was unable to figure it out..

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Dynamicly Creating Two-dimensional Arrays

Mar 6, 2011

I have the followig problem; i want to make a class with a private field as a 2-dimensional array, where it's dimension is set in the constructor of the class.Contained data does not matter at this moment.I've looked a bit around but couldn't find a direct solution to my problem, is this possible in VB.NET? [code]

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Saving 2-dimensional Arrays To Settings?

Jun 30, 2011

I have two different 2-dimensional arrays. I assume the setting i need to save them to is a string setting, as is the cast with regular integer arrays. The first 2-d array I need to save is an integer, the second a decimal.

Let's say the settings are called my.settings.2darray1 and my.settings.2darray2
Let's also say the arrays are:

vb

dim 2darray1(50, 99) as integer dim 2darray2(50, 99) as decimal

What would the code be to load each array and save each array?

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Sort Multi-dimensional Arrays?

Oct 18, 2010

is it possible to sort Multi-dimensional Arrays? If the answer is yes could someone help me giving some hints on how to start?

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VS 2010 Multi-dimensional Arrays

May 24, 2011

I have a string, which can easily be splitted by seperators into an array.The output has to be splitted again an move into a multi-dimensional array (2nd index)[code]

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Create A Tic-tac-toe Game But None Of The Tic-tac-toe Tutorials Use 2 Dimensional Arrays

Mar 14, 2010

I am new to VB, trying to create a tic-tac-toe game but none of the tic-tac-toe tutorials use 2 dimensional arrays. Since tic-tac toe is 3x3 I created 9 buttons and want either an X or an O to appear depending on where the user clicks. I want one set of instructions to handle the multiple buttons. I was told to use Case statements.

This is what I have so far. Not sure how much is right but hopefully it gives you an idea of what I am looking for.

[Code]...

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Grasping The Concept / Context Of Two Dimensional Arrays?

Oct 29, 2010

I am having difficulties grasping the concept / context of two dimensional arrays. For the assignment I am working on I am required to use radio buttons to allow a user to vote if they like or dislike an item from a combo box. The contents of the combo box have been populated through the IDE via tht item property.I understand how to set up my rows and columns, which will be, (0 to 4), (0 to 1). The trouble I am having is how to record and display the votes and have them correspond to the selected item from the combo box. Can anyone give me an example of how something like this works?

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Multi Dimensional Arrays Reading A Letter From It?

Feb 18, 2011

ok so im having issues with this

Select Case a(b, 3)
Case "d"
c = 0

[Code]....

OK so a(b, 3) has either the letter d,e or f in it but when I try and read the multi dimensional array I don't think it picks anything up

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Sharing Multi-dimensional Arrays Across Different Forms In VB?

Jul 9, 2011

I have a very simple 2D array, it holds a list of song titles, their genre, and their runtime. frmMain loads the array from a text file and allows me to manipulate it and boil it down to a desired (implicitly sized) playlist. i want to THEN pass that playlist array to a second form, frmPlaylist The problem i'm running into....When frmPLaylist calls the Property from frmMain I receive an error that VB cannot convert the string value to a two dimensional array. Simplified...frmPlaylist is all locked and ready to receive a 2D array, but frmMain seems to only be sending a single string variable. on frmMain

Public ReadOnly Property PlaylistOut() As String
Get
Return mstrTimedPlaylist(,)

[code].....

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Get The Correct 1 Dimensional Array Return From A Function With Arrays?

Nov 9, 2009

[code]...

Expected Results: A scalar result of the comparison between Array1 and Array2 such that when Array1>Array2 it is true. See expected array above.
Actual Results: When Result(x) is true, all elements become Array1(x) and Array2(x) .What is wrong with the function?

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One Dimensional Arrays (accumulate The Value Of Each Item Of The Array) And Classes

Dec 12, 2010

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.

[Code]...

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Using Parallel One-dimensional Arrays To Calculate A Letter Grade?

Jul 27, 2011

The exercise prior to this one had us use two parallel arrays that store a letter grade (A, B, C, D, F) and the minimum points needed for each grade. The user input the points earned by the student and the program shows their letter grade. It took a minute, but I got that one done, and it does what it's supposed to do.This exercise has us modify that exercise to ask for the (via InputBox in MainForm Load event) total points possible. The grade is then determined by percentage of the total points possible. For instance, if x is the user input, an "A" would be 90% of x.

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Two-dimensional Arrays - Display The Total Bonus Paid To All Salespeople?

Apr 24, 2010

I am doing in my Visual Basic Reloaded:second edition school book. Ok here is all the information the case problem gives me and what it wants me to do.JM Sales employs 10 salespeople. The sales made by the salespeople during the months of January,February, and March are shown in Figure 8.52. The sales manager wants an application that allows him to enter the current bonus rate. The application should display each salesperson's number (1 through 10), total sales ammount, and total bonus ammount. It also should display the total bonus paid to all salespeople. Be sure to use one or more array in the application.Then it gives you a table with the salespersons 1-10 sales amount january February and March.(this is the figure 8.52)Here is a duplicate table of it below.

Salesperson January February March
----------- ------- -------- -------
1 2400 3500 2000
2 1500 7000 1000
3 600 450 21

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Multi-Dimensional Arrays - Code To Set Array Values And Store Them In A Variable

Aug 7, 2010

I have this code to set array values and store them in a variable,

Dim productName As String()
Dim productPrice As String()
Dim productCategory As String()

[CODE]...

How do you get the variable values to output like this?

<input type="text" value="Chang Beverages $19.00" id="Chang" /><br />
<input type="text" value="Ipoh Coffee Beverages $46.00" id="Ipoh Coffee" /><br />
<input type="text" value="Gula Malacca Condiments $19.45" id="Gula Malacca" /><br />

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One Dimensional Arrays - Display The Number Of Employees Who Have Earnt A Salary Within The Ranges Below

May 25, 2009

i am a beginner learning vb.net. I have an excercise to create a form and on clicking the totals buttons it should display the number of employees who have earnt a salary within the ranges below. Now this code works, but i want to substitute the Select Case Statement with a more efficient for..next statment to increment my counter. The code is:

[Code]....

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Import Directly To A Multi-dimensional Array Of Objects From SPROC?

Jun 19, 2011

I was planning on using very similar code to the following to export to excel quickly[url]...

However, the data that I'm exporting is rather large and I find it unnecessary to grab a dataset from the sproc, convert it to a multidimensional array of objects and then export to Excel. There are two main reasons this is unnecessary. 1) It takes time to transfer that data from the dataset to the array. 2) There are then two instances of the data, one in the dataset and one in the array. Therefore, I would rather directly insert the sproc results into the array of objects and bypass the dataset altogether. I can't do this unless I know how many rows I'm getting back from the sproc in order to declare the array's size beforehand. [code]...

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Syntax For Arrays Of Objects?

Jun 22, 2009

What is the VB.NET syntax for declaring the size of an array of objects at runtime?To get an idea of what I mean, here is the code so far:

Private PipeServerThread As Thread()
Public Sub StartPipeServer(NumberOfThreads As Integer)' ??? equivalent of C#
' ??? PipeServerThread = new Thread[numberOfThreads];

[code].....

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Does 2010 Support Arrays Of Anonymous Objects

Sep 26, 2010

In C#, one can create an array of anonymous objects with new []. This was not supported in earlier versions of VB.NET, but a comment by Chris Dwyer in another StackOverflow post suggests to me that it might be supported in VB.NET 2010. I haven't been able to confirm this though.

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Express Arrays Of Objects Last Element Overwrites?

Oct 30, 2010

With the following code, I'd expect to get the array elements back that I put in. Instead, the last array element, is output three times.e workaround would be to dimension the array explicitly to hold four strings, but I used this contruct all over my VBA code and I'd rather know why it doesn't do what I expect.

Sub test_d()
Dim youvegotitems(100) As Object
Dim v(4) As String

[code].....

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LINQ To Objects, Query Arrays In Object?

Sep 15, 2011

I need to query an array. I have tried to use LINQ but with no success.

Here is a simplified structure of Insurance

Public Class Insurance
Public _typ As String
Public _numb As Number()

[Code]....

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Make Classes/Modules/arrays And Objects?

May 18, 2010

This probably sounds daft, but im struggling to get to grips with Classes/Modules/arrays and objects, as well as there uses and what they are, and yes im still coding some how i hear you cry.The reason i ask is because Ive got a load of Dim's in my program that are the same giving locations of files and folders and wondered can they be used as a module that i can alter after the program is built, incase of folder locations being wrong or moved, manually correct after install.

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Make Visual Basic Objects Arrays?

May 1, 2012

im trying to make picture boxes as arraybox(0)box(1)ecti want it to be an array so i can make infinite of them

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VB10 No Symbols Loaded - Related To Arrays Standing In For Form Objects?

Sep 22, 2010

Problem in VisualBasic 10 on Windows 7 OS I have a form which has 30 lines for user input in format <textbox for Name> <comboBox for Type> <comboBox for Quality> <NumericUpDown for Amount> At the start of each line is a CheckBox. The intention is this enables/Disables the line. I have associated each object with an Array - eg

Dim Name(30) As Textbox
etc
and assigned
Name(1)=Name1

[code]....

ie enable/disable the boxes on a line dependent on whether CheckBox is Checked The Sub for Picked_Changed refuses to allow referenced to the arrays within, even if not generated by the picking of box (see above - it allowed '=Men3.Value' but not 'Men(3).Value', although the button sub is fine with this)

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Using The Web Service References Tool 2.0 For Sending And Receiving Complex Data (arrays Of Objects) VBA?

Jul 9, 2009

I used the tool about 3 years ago to create the classes for a webservice client to send or recieve arrays as complex data. Now i have to update these classes, since there are additional informations, that have to be exchanged. When i use the tool now with the new wsdl-files, it does'nt create the classes for complex data (structur, IGCTMObjectFactory), but only one class for simple data. In addition i have to establish a new client, that sends an array of complex data and receives another array of complex data. I tried to build the classes manually combining the client that sends an array with the client, that receives an array, but I failed.

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2-dimensional Control Array With Circle's

Mar 5, 2011

I have to make a game "connect four". I'm having some trouble with the 2-dimensional Array that needs to be created in order to play the game. Firstly there is a function which makes rectangle shaped pictureboxes into circleshaped boxes. Secondly there is a method which is supposed to create a 2-dimensional array with circle's but i can't get it to work. When I run it it only gives me 1 circle at the location which i have given it. I don't know how to get it to repeat. Here's the code.

[Code]...

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