Multi-Dimension Array With Looping?
Feb 20, 2011
I am trying to create a multi dimension array that will search each row of the array and total up the number of 0's 1's, 2's, and 3's. I believe that I need to create some sort of looping structure that will search through each row of the array.I have created a listbox that will allow the user to pick which row of the array the program will search.This is what I have created so far, but I am only just learning and I am having trouble wrapping my head around how arrays work. So I'm not sure if I am on the right path or not.
Dim racescores(,) As Integer = {{0, 1, 0, 3, 2},
{1, 0, 2, 0, 0},
{0, 3, 0, 1, 0},
[code].....
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Mar 28, 2009
I have a grid 10x10, at present is in the form of a multi-dimensional array:
my_Array(10, 10) as char
[Code]...
Additionally this shape can be in any orientation and more than 1 as in the above example.Does anyone know a quick way to do this? e.g regex?Or alternatively achieving the same result by using a different structure rather than a multi-dimentional array?
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Sep 28, 2011
I'll explain what I'm working to eliminate the assumptions of a brute forcer. I'm working a Random SQL Data generator. What I need is a way to create a multi-dimensional array from multiple word lists, 1 dimension per word list. I have tried a few different things and nothing I've tried works. However, I have got it to work with a single word list and an array of 1. I figured there is a more efficient way of doing this than writing a massive block of select case and using multiple 1 dimensional arrays, this would end up very messy and inefficient it seems.No this is not for homework, this is for personal learning use only.I would post my code, but like I said, nothing I've tried comes close to working.
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Feb 5, 2009
I have an one dimension string array ar1
ar1(0) ="One;is;a;dog;"
ar2(1)="Two;is;a;cat;"
...
I want to convert ar1 into ar2 which is a two dimension array
ar2(0)(0)="One";ar2(0)(1)="is";ar2(0)(2)="a";ar2(0)(3)="dog"
etc
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Nov 6, 2011
I have searched for a simple way to search a string array. MS gives a clean simple solution for a one dimesion string.
Dim StrArray() As String = {"ABCDEFG", "HIJKLMNOP"}
Dim FindThisString As String = "JKL"
For Each Str As String In StrArray
[code]......
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May 1, 2011
How do I use only one dimension of an array? What I have going on is: I have an array suit(1, 4) and rank(1, 13) to represent a deck of cards. What I want to do is take the value of the rank of the selected item in my listbox to be able to add it to the rank of other selected items in the listbox (essentially adding the players hand together). [code]...
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Jan 12, 2010
I am having trouble conceptualizing how to create and load my 3d Array. The Project does the following:
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Nov 3, 2011
I had insert value from datagridview to array
but how to make the array become for loop function?
Dim rowNo As Integer = 0
counter = dgv.RowCount()
[code].....
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Feb 26, 2010
I have an application in VBA that gives to my VB.Net dll one bi-dimensional variant. It is a an array, in which every component is a another array containing two positions.
I want to get this two-position array. When I am using VBA I can access directly the data from each position by doing:dataArray(index, 0) or dataArray(index, 1)And when I want to get the two-position array I can use:
Dim posArray as variant
posArray = dataArray(index)
[Code]...
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Oct 6, 2010
I need to add an additional dimesion to outputArrayOfBits() in the code below which I hope conveys my intention. I need to convert a one dimensional array of 1 to n boolean (bit) values into arrays that group them by 8's so the output can be consumed by someone needing these values to be in hex format (0000 1111) = 0F How do I change the declaration of 'outputArrayOfBits and the nested control loop to achieve that?
Dim inputArrayOfBits As New BitArray(32, True) ' I can't change this.
'Create array of bytes containing what will be sent out has hex numbers 0 - F
'outputArrayOfBits(0) = (1,1,1,1,1,1,1,1) 'Hex value FF
[code]....
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Apr 21, 2011
I need to manipulate data for 1000 boxes, each one of these boxes has 8 variables.How to declare an appropriate array? and how to load the array with the 8 variables for each box?
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Jun 22, 2011
I'm trying to return changes to array data, including redimensioned arrays, from within a function call in code similar to:
fault = MyFunction(Array1, Array2)
Public Function MyFunction(ByVal inObj1 as UserStruture(), ByVal inObj2 and Integer(,)) as String
Dim myResult as String = "Failed"
Dim tmpStruct() as UserStructure = inObj1
[Code] .....
This works fine in updating the input array 'Array1', only when the redimensioning of tmpStruct is NOT performed. After redimensioning tmpStruct, the redimensioned array is passed back successfully into 'inObj1' within the function 'MyFunction', but is not passed out of the function call; i.e.
fault = MyFunction(Array1, Array2) -
The dimension of array 'Array1' out of the function call remains as it was before the function call. However, the data change; i.e.
tmpStruct(0).Nam = "New Name"
is passed successfully out of the function call.
Why the Redim operation is not passed back out of such function calls. I would like to return changes to arrays 'Array1' and 'Array2', plus a result string from the function call if I can. Furthermore, I would also like to change the dimension of the array within the function call, if required, and return the complete redimensioned array back out of the function call.
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May 13, 2010
I have the following array in my project that I'm trying to redim without losing the values.The problem with redim preserve is I can only redim the last dimension of the array. I want to redim the 2nd dimension without losing data. How do I get this to work?[code]
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Oct 18, 2011
i have used in vba 3 dimensional jagged arrays where i had up to 10000 rows. i am now transferring this to vb.net and learnt that it would be better to work with lists. the dimensions are such as (30, 10000, 30). how would i structure this by using lists?
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Sep 7, 2010
I've managed to make some single dimension array lists but I can't figure out a multi dimension arraylist.
Here's what I'm trying to do:
I have a database (mdb) with 5 columns that I want each row to be in an array list.
In PHP what I'd typically do is:
$array[$field1] = array($field2,$field3,$field4,$field5);
How I do the same in vb.net so anytime I need to fetch an item for a specific for the row1 I could call it?
For a single dimension I could do the following, but I can't figure out how to add more fields to a single array row:
Dim tmpArrayX As New ArrayList
tmpArrayX.Add(field(0))
tmpArrayX.Add(field(1))
etc...
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Feb 3, 2011
If my array is A(i,j) can I use Array.Clear to zero all of the elements for i=2, for example. It does not work as I expected.
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Jul 19, 2011
If my array is A(i,j) can I use Array.Clear to zero all of the elements for i=2, for example. It does not work as I expecte
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Mar 14, 2012
I retired recently from a job where we had VS2010 Professional for doing ourdevelopment. Now that I'm retired I can't afford "Pro" and cannot find the component than looks like this (see above). Is/was that component left out of the "Express" version? Do I have to "load" it (and, if so, what name should I look for)? I vaguely remember it being some kind of container for other components.As a follow-up question - can anyone provide a (readable) example of creating a two dimension array of this item I could study?
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Sep 22, 2011
I have a gridview in my asp.net website that and I use vb for the code behind. Each time a row is bound an even called the Gridview_RowDatabound event is fired. So what I am doing is looping through all the cells in that row: [Code]
Problem is I get an error saying redim can only change the rightmost dimension. It would suit my needs to change both dimensions here as my final result will be to total each column in the array. what other method can i use if arrays don't suit this task.
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Oct 9, 2009
I am working on a code that should capture the color of a pixel in a bitmap and then check if the 8 surrounding pixels have the same color. If the checked surrounding pixel HAS NOT the same color it will be ignored, otherwise if it HAS the same color, it should check for its own 8 surrounding pixels and so on.
To do that, I have created an array that starts with a single entry (the x,y coordinates of the initial pixel). So, when a pixel with the same color is found it is pushed to the end of the array. I used a for each loop supposing that VB would keep looping until the end of my array - and since it is growing, the last position of the array would be always pushed until I have not more pixels to be checked.
The problem is that VB is not respecting it, and is considering my array as if it had just 1 entry. Seems that it catch the size of the array when it enters the loop, and regardless the fact I have pushed new items to the array it doesnt keep looping it.
How can I force VB to update the end of array position while looping it? Although I think it wouldnt be necessary, here it goes the code I have so far...
Code:
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Jan 7, 2010
I have this 2D array:
Private _Chars As String(,) = {{"`", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "="},
{"¬", "!", """", "£", "$", "%", "^", "&", "*", "(", ")", "_", "+"}}
[code].....
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Oct 16, 2009
I have an arr of sPNoListDefintion.[code]How can I cycle through the elements?Something like For Each i As integer In sPNoList.
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Apr 26, 2011
I'm working on a Connect 4 game. I created a rectangle with 42 holes punched out of it (drawn in Panels Paint event) and I have 42 circles (created with PowerPacks) placed in each punch out. Right now I'm just trying to get the game pieces to drop into place by looping through each column and coloring each punch out sequentially. Here is my
vb.net
Public Class Form1 Private Sub Panel1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.HighQuality Dim dimension As Integer = 50 Dim
[code]....
The problem I'm having is with my array of OvalShapes. I declared it as object and I don't think that's right. The for loop under the click event is not producing anything.
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Nov 15, 2009
I'm making a card game and I want to try and design my own card deck.
Dim X As Integer
Dim currentCard As Integer, currentCard2 As Integer
Dim RandomNumbers As New Random()
Dim NumberofCards As Integer
[code]....
I started a basic vb.net class for my fall semester of high school, and although I've learned a lot, my goal since the start of the semester has been to do this. I realize there are simpler way of assigning card values than writing 52 if then statements, but I'm planning on doing other things with the statements. As you can see, my main plan of action is to generate a random number for each card, loop through the array list to make sure the random number representing that card hasn't been assigned before, use the value to select the card, and then add the randomly selected number to the array list so it won't be used again (non-repeating random numbers).
1) I'm trying to represent all the numbers with Numberlist.Item(X) and that doesn't work because either a) x represents any one number or b) x always represents only 0, which means it only checks the first number.
2) I think I've read something about using this method for generating random numbers in a loop, that it doesn't work for some reason.
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Jul 5, 2011
I am trying to loop an array in a sql insert statement but i can't get it working. Below is a demo i'm trying to get it running. I think i am having problem with the declaration of variable in sql statement.
Public Class Form1
Dim arrayValue(5) As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]......
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Feb 6, 2009
I have a 1-dimensional array that is essentially is written to a csv file. My problem is that after I have loaded the entire array...I wish to write it to the csv file and I'm not sure how to set it up.[code]...
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Mar 6, 2012
im having some trouble with my loop code. When the isnumeric code detects it not a number it throws the msgbox error message but moveson to the next array for the user to enter a value via inputbox. Is there a way for the program to send the inputbox asking for the value again before moving to the next array?
[Code]...
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Jun 21, 2010
how to get an array of string from certain datagridviewcolumn,i try using this code,it doesn't work..
For Each row As DataGridViewRow In dgvPaketRow.Rows
If Not row.IsNewRow Then
Dim str() As String = New String() {row.Cells(0).Value}
Dim strRes = String.Join(", ", modCommon.str)
msgbox(strRes)
End If
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May 26, 2009
I have declared and array
[Code]...
I have created a SWAP function that does the swapping if the index value is greater than the index+1 value, with a loop that will iterate through the array (assuming that you dont have to specify how many iterations are required) until the array is sorted.
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Apr 13, 2012
In VB6 I could set up code to loop through say 10 option buttons to check their values. The code would be something likie this:[code]But in VB .NET it seems that if I use the Controls command as above I cannot use/check the Checked property as Control does not take that as a property of Control. It seems also that I may have to use the Find property of Control as in "Controls.Find" etc.How can I do this in VB .NET? I have a very control intensive application and I must be able to easily loop through controls and check their values without writing out 10 x the code required.
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