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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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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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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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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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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Nov 10, 2010
I have the following code... in an MDI application. [code] Various lines of code which put data into the Myinstance and then save the instance into the ArrayList.I have buttons which run procedures and functions in the formchild and also in the Class1. I need it so you can jump between formchild instances, and when you do so and click a button on that form, it will run the Class1 code but using the data in the arraylist and myinstance that was set previously by the selected formchild. Then if you switch to another child it uses data from this form. Can this be done by declaring the arraylist with more dimensions and then refer to the records with the index of the selected form instance, e.g.Selected Child is index(3)
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Nov 6, 2010
I have created an MDIparent form and a MDIchild. There is a button on the parent which makes multiple 'clones' of the child form, each time its clicked.I also want (maybe with a module) a set of variables, and array of a structure but these are available to each copy of the child, but each copy's variables, arraylist etc contain its own data?Therefore if you select child1 the variables and array will have different data to child2, child3...etc...
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Aug 11, 2011
Ive got a jagged multi dimensional array, how to work out the length of a single row of the array so;
My array is ;
CODE:
And i wish how to find the length of this;
CODE:
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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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Nov 19, 2011
Dim Paper As Graphics
Paper = picBox.CreateGraphics()
Paper.Clear(Color.White)
[code].....
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Jul 4, 2011
I have two one-dimensional arrays filled with dates. I want to join them into one array.
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Sep 7, 2010
How do I create a multi dimensional array in visual basic. For example I have a soccer team with players. Each player has an id, first name, last name, address, phone number. How would I represent this using a multi dimensional array?
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Jan 8, 2009
I need some advice to accomplish this, i have a datagridview with this data:
Column1 Column2
item1 3
item2 1
item1 2
item1 5
item2 3
item3 1
item1 3
I need an array with distinct values of column1 and the sum of the values in the second dimension of the array: ar(item1,13), ar(item2,4),ar(item3,1).
I don't know how many items i will have, so i don't know the correct dimension of the array...
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Jun 18, 2009
Is it possable to remove a row from a multi-dimensional array?
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Nov 18, 2010
I'm writing an application in VB.NET and face the following issue. I'm trying to create an interface that will allow the user to select their availability given a range of times and the days of the week. I want to create checkbox controls in a tabular form with two indices that I can use to refer to a certain time range and a day of the week.[code]I followed the article found here which creates and exposes a control array,however it is not multi-dimensional. Does anyone know of a similar way to dynamically generate controls and store them in a multi-dimensional array in VB.NET?
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Jun 9, 2010
I was looking for a function I need in internet but I didn't find it... I need to sort a multidimensional array(matrix).. for example
Original matrix
1,b,3
2,c,5
3,a,1
I need a function, lets call it magic() xD with 2 arguments, the matrix and which col to sort first...so..the result of magic(originalmatrix,1) could be..
3,a,1
1,b,3
2,c,5
How can I make it ?
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Apr 19, 2012
In my football sim I am trying to save all the info from a game. There are two defined dimensions to this array. The first is the number of weeks(17 always) and then the number of games per week (Number of teams /2). The plays themselves are unknown in quantity so I decided to use List of to store them. With this type of multi-dimensional array that is also a List of I am having trouble with the Get and Set properties. I have a member variable declared as:
[Code]...
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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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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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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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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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Oct 18, 2009
What would be the best way to load and save a multi-dimensional array (of bytes). I've looked through streamreader tutorials but it always seems to instructions on how to save strings. I also know there's a very easy way to save a one-dimensional array, but it doesn't work on multi-dimensional ones. What should I be reading up on?
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Jun 15, 2011
I am attempting something along the line of below mentioned code. Though it works in single dimension array. How to make it work with 2-d array?
Dim arrayord(,) As String = {ds.Tables(0).Rows(3).ItemArray, ds.Tables(0).Rows(23).ItemArray}
But it throws the following error.Error 8 Value of type '1-dimensional array of 1-dimensional array of Object' cannot be converted to '2-dimensional array of String' because '1-dimensional array of Object' is not derived from 'String'.
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Oct 28, 2011
I am having issues assinging values to a multi-dimensional array.
I am trying to build a 2 col, unlimited row array and populate with data from a data reader.
Dim tblArry(,) As String = {}
If reader.HasRows Then
While reader.Read()
[Code].....
When I use a Jagged Array I can get this to work. The Reader portion is workig just fine, but the coding is just not clean for this problem.
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Mar 30, 2011
I think I need a two dimensional byte array I currently have something like this:
Dim MbyteData(196608) As Byte
' Open the file that is to be loaded into a byte array
Dim oFile As System.IO.FileInfo
oFile = New System.IO.FileInfo(sFilePath)
[code]....
I now need to load several files at once (say four) so I need four arrays of 196608 bytes and I want to reference them by a number - 0 to 3, assuming the array is zero based. If I use Dim MbyteData(196608, 3) as byte or Dim MbyteData(3, 196608) as byte the syntax seems to be correct but I hit an error ("Number of indices is less than the number of dimensions of the indexed array") when I try to add the extra dimension to the stream read with something like oFileStream.Read(MbyteData(index), 0, MiByteCount).
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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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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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Apr 20, 2009
I have a multi-dimensional array storeHand(20,6) which stores 6 ints. The int at point 0 in each array represents a rank. So the array ends up looking like this:
(7, 0, 0, 3, 5, 7)
(6, 2, 3, 0, 6, 5)
(5, 0, 0, 0, 13, 4)
(8, 0, 0, 0, 0, 3)
(2, 0, 0, 0, 0, 1)
I want to re-order the array so that the higher the integer value at position 0 is, the higher it's position will be in the sortedHand(20,6) array. So as above, I'd want sortedHand(20, 6) to look like this at the end:
[Code]...
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Dec 12, 2009
I am trying to turn data in a text file seperated by spaces into a 2D array.
It is for a math game. The data is statistics based on the performance of the user. One line looks like this "John Doe 0 0 1 3 0 6 0 22"
I need to put the line into an array and then be able to search by name to display the results. I keep getting extra spaces in the input of the array so the data isnt where it should be. It seems that the first entry works correctly, but appended lines do not enter correctly.
Sub ResultsToFile()
Dim FILE_NAME As String = "C:\Student_Results.txt"
Dim RecordString As String = NameForm.PlayerFirstName & " " &
[Code].....
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Sep 30, 2011
I am looking to remove an element from an ArrayList using a query, E.g. DELETE FROM arraylist WHERE (0) = "User1" (Where (0) is the index of the second dimension).
Code:
Dim Users As New ArrayList
Users.Add({"User0", "Details"})
Users.Add({"User1", "Details"})
Users.Remove("User1")
The reason I am looking for a query way to do this is because I will not know what the second dimension value will be.
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