VS 2010 Replace Array With Array?
Aug 23, 2009This is my The step that is screwing up)
Public Sub l2n(ByVal origtext As String)
Dim old As Array
Dim newtxt As Array
[code].....
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VS 2010 Replace All Strings In Array?
Feb 5, 2011I have an string in a textfile that looks like this:or something similar. The T's represent true and the F's represent false. I wrote each letter to an array, like so:
[Code]...
VS 2010 : Copy This Array To A Temp Array So That The Temp Array Has All The Same Values As The Original Custom Array?
Jun 19, 2011I have an array of people stored in a custom structure array... how can i copy this array to a temp array so that the temp array has all the same values as the original custom array?
View 4 RepliesVB 2010 Array/write Array To File?
Dec 3, 2011I'm close to getting this to work, but currently can't get any output to display in the listbox. I had it working, but needed to move some things around to get the join function to work.In my program, a user enters input into a textbox and an array is displayed in a listbox based on what they type in. For example, if they type in "a", all foods (in the textfile that is connected to the program) that start with "a" will be displayed.
When there is output, I need to find a way to name this array (which is created based on what the user inputs) and join all of the items in the listbox (example: foods stacked on top of each other in the listbox will be shown at the bottom as a string).I am posting the code that I have thus far; all of the errors that I'm getting (and potentially my logic errors) are just in the first public class until the end of the first if-next statement:
Public Class frmFoods
Dim foods() As String = IO.File.ReadAllLines("foods.txt")
Private Sub btnDisplay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplay.Click
[code]....
Seaching An Array - Store In A 1d Array A Set Of 5 Place Names And In 2d Array The Distances Between Places
Jul 28, 2010I am trying to create the following program Store in a 1d array a set of 5 place names and in a 2d array the distances between the places. Ensure that the order of the places is the same in both arrays. When the names are places are input the distance between them is displayed. If they are not both in the table a suitable message is displayed
Dim town(1 To 5) As String
Dim Dist(1 To 5, 1 To 5) As Integer
Dim First As Integer
[CODE]......................
I think the best way forward is pass a parameter to the function findnumber.
Incrementally Replace Values In String Array?
Jan 9, 2011I have a String array with the following values[code]...
what i need is a loop or something to replace the values as such[code]...
I then need to add another index to the strArray() which will hold the last value ie[code]...
Replace Elements Of A Non-array String Using Datasplits?
Oct 4, 2011Let's say I have regular string called tempstring, and I want to change a specific item in that string. Like if tempstring = ";1;2;3" and I want to change the "2" to "Baboon." Here's my best solution on how to do it:
vb
Tempstring = ";1;2;3"
'Datasplit tempstring
Dim datasplit As String() = Tempstring.Split(New Char() {";"c})
[Code]....
This works, however, it feels a little heavy. Is there an easier way to do this? Perhaps a way to directly replace datasplits without readding them all to another string one by one using a loop?
Replace Two Dimensional Array With A Collection Or List?
Mar 17, 2010I am using 2 dimensional arrays for my work. My problem working with them they are incredibly slow for my work. I am starting the array with randomly assigning values (non zero) to the array. Most of the array values are zeros as shown in below form (e.g. 5 x 5):
[Code]...
VS 2010 Array From VB6 - Can't Find Array(xxx,xxx,xxx)
Feb 1, 2011Here is a code in my VB6 application.
Array(1,"P11","@P 100", "NEXT")
However, now I'm converting this program to VB.Net and I'm stuck at this point. Can't find Array(xxx,xxx,xxx) in VB.Net 2010. Is there any option or function for this?
Find Duplicate Random Numbers In An Array And Replace With New?
Feb 9, 2012How can I check an array for duplicate random numbers and replace the duplicates with new random numbers?[code]...
View 7 RepliesParsing Through List, Compare 2 Dimensional Array Element And Replace With Higher Value?
Mar 23, 2008unordered text file of 3 columns to assign into 2 arrays. I've been given a graphing component which expects a two dimensional array for a scatter graph for the set of values in the last column.
How would I parse through the list given an indexed array of 215 possible 'zone alarm locations' and if an alarm log list item, of which there can more than one for any given zone location, compare in the two dimensional array any previous value and replace it with the higher valued one? The following are my declarations for the 2 arrays. It isn't clear to me why the array for the scatter data was defined as (999,1) knowing there are only 215 possible x values (alarm zone locations)
[Code]...
Getting Controls That Can Replace The Control "AxMSFlexgrid1" Used As Text Array?
Jan 20, 20121. I want to know:Why the VB2010 always tell me make some mistakes when I use the control:AxMSFlexgrid1 the control:AxMSFlexgrid1 ? Should I define it as a kind of Controls? 2.I want to know :Is there any controls can replace the control:AxMSFlexgrid1 used as Text Array ?2. Also,I want to know :Is there any controls can replace the control "AxMSFlexgrid1" used as text array?
View 2 RepliesAn Array Of Objects - An Entry Will Be Stored In Serialports(4), All Other Array Elements Will Be Blank?
Jun 1, 2009I've come up with the following and it's partly working.
Public serial1, serial2, serial3, serial4, serial5 As SerialPort
Public serialports() As Object = New Object() {serial1, serial2, serial3, serial4, serial5}
dComPort = "COM4"[code]....
The above code works fine! But im having trouble trying to now retreive whats stored in the array.In the above example, an entry will be stored in serialports(4), all other array elements will be blank.If I do this it works.
MsgBox(serialports(4).PortName) ' this retuns the value COM4
But I'd like to loop though all array elements and print out ALL the PortNames, The below code doesnt work, I get an error Object variable or With block variable not set.
For i = 0 To serialports.Length - 1
MsgBox(serialports(i).portname)
Next
Array.Sort Returns Blank Data When Sorting A Structure Array?
Jun 19, 2009I'm trying to sort an array based on a structure but whenever I do this, it basically erases all the data in the entire array.I have verified that the array is populated correctly, it is when using array.sort that everything returns blank.
View 6 RepliesInitialize An Indefinite (eg. Decimal) Array Without Setting Boundaries On The Array Length?
Nov 10, 2009initialize an indefinite (eg. Decimal) array without setting boundaries on the array length?
View 2 RepliesObject Array To Byte Array - Marshal.AllocHGlobal Fragmentation Query?
Jun 14, 2011I didn't think it fair to post a comment on Fredrik Mörk's answer in this 2 year old post, so I thought I'd just ask it as a new question instead..NB: This is not a critiscm of the answer in any way, I'm simply trying to understand this all before delving into memory management / the marshal class.
In that answer, the function GetByteArray allocates memory to each object within the given array, within a loop.Would the GetByteArray function on the aforementioned post have benefited at all from allocating memory for the total size of the provided array:
Dim arrayBufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf(<arrayElement>) * <array>.Count)
I just wonder if allocating the memory, as shown in the answer, causes any kind of fragmentation? Assuming there may be fragmentation, would there be much of an impact to be concerned with? Would allocating the memory in the way I've shown force you to call IntPtr.ToInt## to obtain pointer offsets from the overall allocation pointer, and therefore force you to check the underlying architecture to ensure the correct method is used*1 or is there a better way? (ToInt32/ToInt64 depending on x86/64?)
*1 I read elsewhere that calling the wrong IntPtr.ToInt## will cause overflow exceptions. What I mean by that statement is would I use:
Dim anOffsetPtr As New IntPtr(arrayBufferPtr.ToInt## + (loopIndex * <arrayElementSize>))
I've read through a few articles on the VB.Net Marshal class and memory allocation; listed below, but if you know fo any other good articles I'm all ears![URL]..
Obtain Index From Array Where An Input Value Lies Within A Range Of Values In The Array?
Dec 12, 2010Per this UserControl that can be added to a blank form, I would like to use the HorizUnits array below to map custom grid x coordinate from a mouse x position.For a given input value 13, what syntax would I use to obtain a value of 2 where 13 lies between Value 10 and 16 for which 2 (Name) would be the custom grid's displayed coordinate position?
View 1 RepliesPerform A Sum Of Individual Column Of 2d Array And Send The Result To 2d Or 1d Array Or Datagridview?
Mar 12, 2012I have a 2d array of data that I have performed the sum of the individual column of the 2d array. I want to send the results to a datagridview and also will like to have the result as a 1d or 2d array.
Below is sample of my code
Dim Array1(,) as double
Array1(0, 0) = 5
Array1(0, 1) = 7
[code].....
VS 2008 Binary Serialization - Save An Array Into My .bin File Then Read The Array Again
Nov 27, 2009Can I save an array into my .bin file then read the array again just like a string or Integer??
View 2 RepliesGeneric Class Array - Reading In A Excel File And Extract Data To Store In A Array
Sep 9, 2010I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
View 2 RepliesNull Reference Exception Unhandled Error When Input Is Saved Into Array After Array Has Been Erased?
Jun 23, 2011n my project i am to enter a name and a test mark into two separate text boxes and then select the button to store the information into the arrays, one array for names and another for marks, but when it is reset using the Erase <Array> fuction andi try to re enter information, no matter what information is entered i get a "Null Reference Exception Unhandled" Error.I am using Visual Basic 2008.My code is as it says from now:
Public Class frmAdverageTestMarkCalculator
Dim ClosingMsg As String
Dim Closingtitle As String
[code].....
Array Calculation - Unable To Calculate The Values Coming From The Array ?
Dec 7, 2010I am writing a pizza order program for class and have gotten everything put together, even got my array setup and displaying but when i go to calculate it will not calculate the values coming from the array in any of the calculations.
[highlight="vb"]Option Strict On Public Class Form1 'declare structure and module-level variables Structure PizzaSale Dim SizaString As String Dim StyleString As Stri]
.net - Array.Sort() Doesn't Correctly Order Target Array
Apr 13, 2012I'm using the following code to read in a highscores file with the score written first and the player's name written to the next line, and then display the top 3 scores or fewer if there aren't 3 scores written to the file. A highscores display should have the scores sorted with the highest first so that's what this program tries to implement.
Array.sort() isn't doing a damn thing. In fact, the program's not even reversing the arrays like it should either. I've tested array.sort() this way with the names and scores arrays given explicitly and it works fine. I thought maybe it was still reading the data as string even though it's declared otherwise but it rounds off decimals when I change the array type to Integer so I'm pretty sure it's not that.
I have no idea why reading the data in from a file changes how it's sorted. My teacher didn't understand what was going on either. Does anyone know what's going on here?
Imports System.IO
Public Class Form2
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
.net - Combining Array Of Arrays Into Single, Distinct Array Using LINQ
Apr 19, 2011Can this be rewritten any better using LINQ? I'm a C#er trying to think in VB.NET for this current project. It's in an ASP.NET Web Forms .vb codebehind:
Public ReadOnly Property AllowedCategoryIds As Integer()
Get
Dim ids = New List(Of Integer)
[Code]....
Compare Two Array And Save The Miss Match Character Into 3rd Array?
Apr 9, 2010I want to compare two array and save the miss match character into 3rd array.
View 1 RepliesConvert C# Class's Byte Array Values Into Integer Array?
Jun 22, 2010A c# class's single dimension byte array contains socket level instrument sensor data as per:
public static byte[] frameData
Creating An Array From A CSV Text File And Selecting Certain Parts Of The Array?
Mar 20, 2011I have a Comma Separated value file in .txt format... simply put, its a bunch of data delimited by commas and text qualifier is separated with ""For example:
"So and so","1234","Blah Blah", "Foo","Bar","","","",""
"foofoo","barbar","etc.."
Where ever there is a carriage return it signifies a new row and every comma separates a new column from another.My next step is to go into VB.net and create an array using these values and having the commas serve as the delimeter and somehow making the array into a table where the text files' format matches the array After that array has been created, I need to select only certain parts of that array and store the value into a variable for later use.... how to make the array and selecting the certain info out of it..
Merge Array Of Elements Into Larger Array When Element Order Is Different?
Nov 23, 2010Assume I have an array myArray1 = { A, B, C, D, E, F, ., T}I have another that contains a subset of the elements of myArray1 but where the order may vary
View 3 RepliesPreserve Existing Array Of Booleans And Add 3 'False' Values To End Of Array?
Feb 1, 2011As per this illustration, I'm trying to increase the size of an existing array from 111 to 114 to be consistent with existing code. I need topreserve the existing values and add 3 new items to the end of the existing array of booleans,
View 3 RepliesRead Part Of Text File Into 1d Array Other Half Into 2d Array?
Mar 28, 2012im trying to make an example program for a teacher friend of mine
Springfield
Toledo
Youngstown
[Code]....
thats just what i have so far but im really having trouble getting the other part into a 2d array. i want the second half to look like this when done: the oppsite of what it looks like in the file.
001
359
203948