Move Through Array In Reverse Using Loop And Not For?
Mar 27, 2010
I'm in a pickle... either that or it's getting too late in the day. How do I loop through an array in reverse without using FOR?I have an array of string values, I need to loop through these values until I find the first instance of a value then stop. I have considered a sort on the array but each query would need me to sort it accordingly (the data in the array has many instances of the strings within strings I am looking for, e.g. there could be several 'to' but I need the first, there could be several 'from' but i need the last)When I find the instance of the string, I then need to grab specific data from that string.
[Code]...
View 6 Replies
ADVERTISEMENT
Dec 16, 2010
I have the array dimensioned as public to the form. I populate the array on Form1_Load.When I click the button btnReversingAnArray the first time all are sorted in reverse except for Wendy and it is the last item shown. ie..(The book I am even shows an image of the list Box and their example also shows Wendy as the last item)
Richard
Michelle
Jay
Harriet
Wendy
Then I do nothing else except I click the button btnReversingAnArray again and then it displays correctly.
Wendy
Richard
Michelle
[code]....
View 2 Replies
Feb 21, 2012
I am fairly new to VB and I am struggling with not using the Reverse string.I need to take a persons name from a text box and print the name backwards in a label using lop and the MID function.I have this, but it doesn't use the MID Function, how would I change it.
Private Sub convertButton_Click(sender As System.Object, e As System.EventArgs) Handles convertButton.Click, ClearToolStripMenuItem.Click
Dim Name As String = ""
[code].....
View 17 Replies
Apr 13, 2011
I am trying to print out a triangle of stars with the longest side on the top. I have tried adding removing step, changing value of step, changing order of 5 to 1, 1 to 5 but I can't get it to reverse. I thought that is what step does? [code]
View 9 Replies
Apr 19, 2009
i'm sure its very simple, but i couldn't find how to do it
my normal use of For Loop
For x= 1 To 100
bla bla
Next
how do i "count down" like this
For X = 100 To 1
View 3 Replies
Oct 18, 2011
I know how to loop through a GridView and extract each row using the for each loop as below, but I was looking for a easy way to loop through the datagrid and say extract the last 20 rows? Is it possible to go through in reverse order in vb.net?
For Each row As GridViewRow In InventHistoryGridView.Rows
View 1 Replies
Dec 29, 2009
Reverse an array of objects?
View 8 Replies
Jun 8, 2012
How can I reverse a whole array of Booleans?
View 3 Replies
Dec 26, 2009
I have three listboxes in an array and on form_load the listboxes initially select the fifth item in each listbox:
Private Sub frmSample_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
For i As Integer = 1 To 3
View 8 Replies
Apr 25, 2012
Is There Any Method To Reverse Array In A Textbox? i want to reverse the array by line in the textbox [Code]
View 3 Replies
Mar 9, 2010
I just want to know if we can reverse an integer number without using an array
View 3 Replies
Sep 10, 2011
I hope that I'm not just overlooking something, but I am really struggling with working with an array. To simplify my issue: Suppose you type out the values: 1 through 5 into a textbox (1 2 3 4 5). I'm looking to convert that string to an array, so that I can reverse the order and then show the new order in the textbox.
[Code]...
View 4 Replies
Apr 5, 2010
I need to reverse a string of words without using the reverse function. This is what I have so far, BUT it only shows the last two letters. For example: if i type "John" it will only give me "ho"
Public Class frmReverse
Dim original As String
Dim New1 As String
[code]....
I need to this without using things we haven't seen in class.
View 3 Replies
Jan 5, 2010
Is it possible to move the cursor down in something like a for next loop? I would like to sequentially fill in cells (down a column).
View 1 Replies
May 6, 2009
Is there a statment like Exit For, except instead of exiting the loop it just moves to the next item.[code]...
Just wondering if there is a way to jump to the next item in the Items List. Im sure most will proberly be asking why not ust use the else statment, but to me wrapping the "Do Something" code seems to be less readable especcially, when there is a lot more code.
View 5 Replies
Jan 15, 2010
I am using Visual Studio .Net 2008. I am using "Structure" statement for my work. It is working with me perfectly. I am not sure if Understand the structure statement very well because it does give me wrong answer if I change the position of "Redim" of the structure elements. My problem is the structure is using "Redim" in many places which is a dangerous procedure. I do not know how exactly to explain my problem because the structure in my code is used widely and called in many subroutines. I will try to explain with the below simple code:
[code]...
My question is: How can I move the all "Redim" statements outside the loop so that the Redim happens only ones? What does "TheCollection(Iteration + NumberOfMembers).TheResult" does take? Is it zero or what?I searched the web but I could not find a proper website or article which explains the structure. The only useful link I found is this:[url]
View 6 Replies
Oct 17, 2009
When it comes to threading. I've managed to adapt one of JMcIllhinney's backgroundworker codebank examples to somewhat suit my needs, but not completely. I have a main form, and a second form that appears while I'm running through a for loop. It informs the user what is currently happening. I set up a backgroundworker that allowed me to continue to use the main form during the for loop, but the other "status" form was completely frozen, and any labels or graphics were shown as white boxes. I am struggling to figure out how to be able to move/interact with both forms while the loop is running.
View 4 Replies
Mar 22, 2011
I have a problem with move items of an array according to a schema.This is the purpose of the
arrayi= {1,2,3,4,5,1,2,3,4,5,1,2,3,4,5,1,2,3,4,5,1,2,3,4,5 }
Move items in the array to achieve this:
arrayf= {1,2,3,4,5,5,1,2,3,4,4,5,1,2,3,3,4,5,1,2,2,3,4,5,1 }
[code]......
View 1 Replies
Jan 26, 2011
Is there a way to move a entire row from one array to another array, without having to move it cell by cell? Assuming that the row length in both arrays is the same.
View 1 Replies
Jan 7, 2009
Imports System
Imports System.Collections.Generic
Imports System.Data
Imports System.ComponentModel
Imports System.Drawing
[Code]...
View 1 Replies
Feb 2, 2009
I need to move bytes in byte array.
Dim data() As Byte = {&HE4, &H96, &HA3, &H47, &H42, &H4A, &H80, &H90}
I need to make so that the first two bytes would be deleted and the rest moved to the first one's for example:
Delete: E4, 96
Move: A3 and all the rest to the place where E4 was. (|A3 = 0|,|47 = 1| etc.)
In C++ it's possible to do it like that:
unsigned char data[]={0xE4, 0x96, 0xA3, 0x47, 0x42, 0x4A, 0x80, 0x90};
data+=2;
how to do this in VB.Net without making a new byte array and then using a loop to put the all bytes in that place - it would be too long and would use more resources.
View 8 Replies
Mar 15, 2012
i want to see if i can get my hands on a working example of a 2d array something along the lines of continents and 5 sample countries from each continent.i would also like to know how to loop through a 2d array - i know i need a loop inside a loop but cant find any examples.i know to declare a 2d array its like: dim arrayName(,) = {{"sample","sample"}{"sample2","sample2"}}
View 1 Replies
Feb 26, 2011
I am designing a prisoner system
On the design i have different text boxes that display the prisoner name, birth date, number etc.
I then set all of the the different prisoners up in an array.
I want to know how to loop though this array so that when i start the program up it will start at the beginning of the array with the first prisoners details and then when i click "Next" the next prisoners details will be displayed in all of the boxes.
View 9 Replies
Apr 29, 2012
I am trying to display payment details for each loan, but I am having problems displaying on the form.
Public Class MortgageDetailsCalculatorForm
Private Sub CalculateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CalculateButton.Click
[Code]......
View 2 Replies
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].....
View 5 Replies
Oct 14, 2011
I'm writing a loop to go through the first array of a 2D loop, and I currently have it like this:
For Each Dir_path In MasterIndex(, 0)
'do some stuff here
Next
But it's giving me an error, saying it expects an expression in the first field. But that's what I'm trying to do, loop through the first field. How do I fix this? What would I put in there?
EDIT: to clarify, I'm specifically looking for the 0th element in the subarray of each array, that's why that second field is constantly 0.
View 2 Replies
Feb 13, 2012
I define a arrary.
Dim myStr(100) as string.
Then the length of this array is still 0. Then is risky to cross the bound. So how to intialize this array without using a loop?
View 9 Replies
Mar 10, 2009
I've been looking far and wide to find the answer to my question. Its probably has a simple answer, but I am new to VB2008 and can't figure it out. I have a web form setup 30 textboxes, and am trying to find a way to quickly add them to an array through a loop.Their ID's are all - TextBox1,TextBox2 ect. I have this loop here that runs with no errors, but nothing shows up in the TextBox's on the web form.If the TextBoxes are already on the form, do I still need to declare new boxes when trying to add them to the array? [code]...
View 4 Replies
Feb 5, 2011
I would like to ask a code on how to loop using values in an array.To site an example:
Dim arrTarget(Target1, Target, Target3) as Array
Dim i As Integer
Dim endi As Integer = arrTarget.Max() 'Get the sum of arrTarget index
[code].....
View 5 Replies
Jun 22, 2010
I Have 100 Picture Box(PictureBox1-100) And I want to use Each PictureBox with loop like
[Code]...
View 1 Replies
