Inserting Multidimensional Array Into ListView
Jul 12, 2011I have a 2 dimensional array and also a 2 column listview box. I am able to insert array (0,i) into column A, but i do not know how to insert Array(1,i) into column B.
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VS 2010 Datareader To Multidimensional Array To MultiColumn ListView?
Oct 7, 2011I am using a datareader to pull data from my database. I store the data in a multidimensional array in a seperate class file. I access the values in the array from a form through properties.The problem I am having is when I run the project as I step through the code I can see the values being added to the array but when access it from a string property it shows up as string System.String[,]. I would like to have my array transposed accross the listview under the corresponding column. below is the code I am using.
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Adding Value To Multidimensional Array?
Jun 22, 2012I have a multidimensional array which will hold 3 bits of value and value will be added through a loop by reading from db. When it come this line of code:
*MenuAccess(.Fields("GROUPNO").Value, .Fields("ITEMNO").Value, .Fields("SUBITEMNO").Value) = OKNO*
It's hitting error, 'Object reference not set to an instance of an object.'
Public MenuAccess(100, 30, 50) As Boolean
Private Sub RtGetMenu_Access()
Try
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Asp.net - Multidimensional Associative Array?
Jun 7, 2009Hi can someone show me an example of a multidimensional associative array in vb.net. Need array to hold peoples name, there age and a few other settings. Want to be able to use a Dictionary to use People.Add.
View 1 RepliesHow To Clear Multidimensional Array
Apr 16, 2009I've got a 3-dimensional array that I'd like to clear.
View 1 RepliesMultidimensional Array Of Classes?
Mar 17, 2010I'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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Multidimensional Array Within A Structure
Oct 23, 2009I'm very new to VB.NET and I suppose this is a little big for a first project.I've done the same thing in other languages so I figured it wouldn't give me much trouble.I'm working on a map editor program for a 2D platformer game.The map will be an array of a structure which contains the width, height, and tile elements of each layer. the tile elements are stored in a 2D array within the structure.[code]That didn't give an exception but I'm not sure that it actually redimmed considering the second assignment command still crashed.
View 1 RepliesPopulating A Multidimensional Array
Nov 8, 2011I am writting a vb.net program that I want to read in data from Excel and then populate a multidim array with it.I have been able to import the Excel data into a DataGridView (haven't been able to go directly to an array). Now I am trying to loop through the DataGridView to populate the array.This is were I am having troubles.[code]
View 2 RepliesSort A Multidimensional Array?
Sep 23, 2011vb.net 2005.
I have profitMarginArray(29,3) <29 is actually a variable, but figured I'd put in a number for the example> and what I need is to retreive elements 0 and 3 sorted on 3 in some way shape or form. The biggest problem is element 3 isn't unique so there could be 5 that have the same value (56.34 for instance) so a sorted list is out.
The current array could look something like
Item1, .34, .75, 54.67
Item2, .32, .75, 57.33
Item3, .29, .5, 42
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Sorting A Multidimensional Array?
Apr 15, 2012Is there at all a way to sort (numerically) a multidimensional array?
I have an array that is as follows `dim points(23,1) as String`
The first dimension of the array has the players names in, the second dimension of it has their cumulative points, so I want to sort the array by points and maintaing the correlation of players name to points
Sum Column In Multidimensional Array
Dec 12, 2010* I posted this in VB forum at first by accident instead of .Net* I am trying to create a console application that computes the row and column sum and prints the elements with the resulting sums for each row and column.
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My column sum code is currently showing the row sums. I need the column sums to display in descending order. So i know it would require a sorted array, but i'm not sure how to go about doing that given i can't get the correct values to show up. So I would need it to display as "Column sums are 12, 20, 13, 24, 51. " and then the next line would be "Column indexes are 1, 3, 2, 4, 5."
Build Multidimensional Array In Program?
Nov 23, 2010I'm trying to build up a multidimensional array which will hold two bits of info for each record in a database e.g. id, description.[code]...
View 2 RepliesC# - Number Of Repeating In Multidimensional Array
Mar 23, 2010I need to count number of repeating and position where they repeat of all number in multidimensional array like this:
1 2 1
1 1 2
2 3 1
And result need to be:
Number 1- two times on position 1, one time on position 2, two times on position 3
Number 2- one time on position 1, two times on position 2, one times on position 3
Number 3- 0 on position 1, one time on position 2, 0 on position 3
C#: Find Index Of A Multidimensional Array?
Mar 16, 2011if i have a multidimensional array:
dim test(,,) as string
how can i loop through the array to find if another variable is contained in the second dimension of the array
dim x as integer = test.indexof(OtherVariable)
obviously above won't work
Counting Items In A Multidimensional Array?
Mar 4, 2011If I have the following array:
Dim Array(4, 10) As String
Array(0, 0) = "100"
Array(0, 1) = "200"
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How do I get the following count:
0 = 2
1 = 4
Importing CSV File Into Multidimensional Array
Dec 20, 2011I can't seem to get the code structure I'm looking for when importing a csv file into an array. The CSV format in question is 69 columns, and unknown rows since it depends on the time length of the data capture. Over the past 3 days I have tried many methods and can output it all to a listbox, as shown below (column headers appear in order), however when I try to put it into an array it only reads the first column. Am I missing something in the declaration of the array, or do I need to use an arraylist? Every permutation doesn't seem to get the results I seek, or I just plain crash the program.
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Make A Multidimensional Jagged Array?
Mar 26, 2012I am trying to make a jagged array that has,
3 columns
with 5,4,4 rows respectively
that each have 2 rows
that have a varying number of rows, for example 6,9,5,6,4 I have the first part setup but I don't know how to get to another level of the jagged array.
Dim potentialStructure()() As Short = {New Short() {0, 1, 2, 3, 4}, New Short() {0, 1, 2, 3}, New Short() {0, 1, 2, 3}}
And how would I access an element at say, the lowest level?
Pass A Multidimensional Array To A Function?
Oct 29, 2010I have a multidimensional array (not jagged array) that saves data from rows and columns of an excel spreadsheet. After it completes recording the data from Excel, I need to pass the array to another function.I understand how to pass a jagged array, but not a true multidimensional array.
Can someone point me in the right direction? I've done some searching on this site, and others, but most of the info only includes single dimension arrays or jagged arrays.
Passing A Multidimensional Array Into A Function?
Apr 30, 2009I am trying to use a simple quicksort routine for a multidimensional array but cannot figure out the syntax. I am stumped because it works fine in VB6 but no luck in .Net
Array Declaration:
Dim sArrIn(25000, 3) As String 'sort key (pkg, kitting, zip), kitting, data
Function Call:
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Sort A Multidimensional Array By The 3rd Column?
Oct 3, 2009Dim array1(9,2) as String
So basically, 10 rows and 3 columns and say I want to sort them by the values in the 3rd column.
Each row is essentially a record of data and must be kept together.
Now I know that you can't use the array.sort method but would I have to use a bubble sort or something for this?
What's a good way to manipulate the records while still keeping each row linked together somehow.
Sum Rows And Columns In MultiDimensional Array
Dec 12, 2010I am trying to create a console application that computes the row and column sum and prints the elements with the resulting sums for each row and column.[code]My column sum code is currently showing the row sums.and the rowsum code is showing a continuous sum, rather than a sum for just that row.
View 4 RepliesVS 2010 SQL Database To Multidimensional Array?
May 15, 2012First time I've had occasion to do this, but how would you represent the data in a SQL database table in a multidimensional array? I've heard tell of multidimensional arraylists but have no idea how to use them.
Here's what I have -
The table is 15 columns across and a varied amount of rows depending on the query.
rawData is an arraylist. finalData is an array.
Dim myReader As SqlDataReader = sqlcom.ExecuteReader
While myReader.Read()
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Obviously, this gives me a long list of all the data from the query. I want to break it in rows.
While Loops - How To Initialize Multidimensional Array
Jul 12, 2011I am trying to initialize a multidimensional array. Here is my syntax; this does not create errors but it does not store all values either. Although it correctly prints out all records in this snippet,
dFirstWeek = CDate(FirstWeek)
dFirstWeek = DateAdd(DateInterval.WeekOfYear, -1, dFirstWeek)
Dim dFirstDay As Date
Dim arrWeekYear(5000, 1) As Date
Dim i As Integer = 0
Dim j As Integer = 0
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But this time, only one "j" record appears per "i" record. Why is this? And then after these few records, many dates resembling null dates appear: "1/1/0001". So why do all records appear in upper section, but not from lower? Did I insert values wrongly into this array? And it does not have to have fixed number of rows, just a fixed number of columns.
Create A Multidimensional Array That Contains Arrays Of Different Lengths?
Jan 1, 2011Is there any way to create a multidinensional array that contains arrays of different lengths (similar to nesting arrays of different lengths in python).
Because if I were to declare a variable Dim accounts(2,2) As Integer all 1D arrays at each dimension have the same length. Is there any way to create an array so that this is not the case?
e.g The above code would create an array like this:
[[0,0],[0,0]]
but would it be possible to create this:
[[0,0],[0,0,0]]
Forms :: ReDim Preserve Multidimensional Array?
Jun 7, 2009with a function to redim preserve a multidimensional array (2d) and change both dimensions, also it would be a
View 3 RepliesMultidimensional Array - Creating A Variable For A Grid In .net?
Sep 6, 2011I need to store elements in a multidimensional array. Specifically, I need to save "tiles" to a grid (e.g.Grass at x:2 y:5, Dirt at x:3 y:5, etc.). Using a multidimensional feels very hacked up and is very glitchy (having to resize my arrays and having to create new ones were they are non-existant). Is there some kind of element made for this? Something I can say obj.getPos(2,5) and get my Grass Element and use obj.setPos(DirtObj, 3, 5) to set it to my Dirt Element?
I'm just wondering if there is something easier to use than multidimensional arrays in vb.net, that is all.
Multidimensional Array - How To Get Textbox To Show String
Mar 5, 2012For a To-do list program, I am trying to use something like this to get the textbox (txtlast) to show the string held in the array, but the text box just keeps coming up blank..... why is this?
txtLast.Text = Arrnumbervalue(IntYear, IntMonth, IntDay, IntHour)
Parallel.for To Calculate Aggregated Value In Multidimensional Array
Jun 18, 2012I am trying to use parallel.for in order to calculate the summation of all the values in an multidimensional array. I googled and found Click Here. However, this is just for one dimensional arrays. The LINQ does not work for multidimensional array. And when I use parallel.for it gives me different answer than the sequential approach.
how to implement parallel.for for summing up multidimensional array.
Reading A Complete Column Of A Multidimensional Array At Once
Jun 10, 2011I'm working on a piece of software to read a comma separated text files with thousands of lines each line has around 32 word separated with a comma What my code does at the moment it reads the file line by line choose 11 words out of the 32 and outputs them into a new file. This is actually time consuming although i used threads and a progress bar my manager still not happy. So i was thinking if i can read the whole text file into a 2 dimensional array and then choose certain Colums to output on the new file that will make it work much faster. But i don't know how to read a whole colum from a 2 dimensional array. And let's say for example the array is gonna be like array(9500)(32) where the first argument representing the number of lines and the second represents the number of fields in each line. Is there any way to access it like this array(all lines)(15) I'm using vb.net 2008
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