Create A 2-dimensional Array For A List?
Feb 12, 2010
I want to create a 2-dimensional Array for a List of five Names for males and another List of five Names for females.
And I want the list of names of males and that of females in a Text Box / List Box. This I couldn't do.
I know how to do this for a 1-Dimensional Array.
I give below what I tried.
Public
Class
Form1
[Code].....
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May 3, 2012
i have issue returning a list in a web method. here is the code
<WebMethod()> _
Public Function getTags(para_parents As String) As List(Of getTypeDetailsByParentName_Result)()
Dim context As New PPEntities
[code]....
the error is
Value of type 'System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)' cannot be converted to '1-dimensional array of System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)'
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Nov 18, 2011
i have been working on a simple program but cant get my head around it. It does not show any errors at the moment but when i run it does not do the things i would like it to do. I will paste in the code first and explain it below.
[Code]...
So basically the form has help button to show instructions, quit to quit the program and check to check whether the country from listbox lstCountries matches the correct capital in lstCapitals. The idea of the program is to shuffle the items in two arraylists and then add them to seperate listboxes called lstCountries and lstCapitals. At start i used 1 dimensional array and it worked like a charm for mixing up items in arrays and then adding them to listboxes, but then the problem had to match the correct Country with correct Capital and it only worked if i picked the items on the same index such as 1 and 1(straight line). It all sounds complicated and confusing, P.S alot of code is commented out, because i have tried many ways to make it work.
[Code]....
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Mar 17, 2010
I 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]...
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Jan 29, 2010
Is it possible to have a two-dimensional array/list/collection such as the following. The first dimension is to have 2 elements, 0 and 1. The second dimension I would like to be able to have a different number of elements for each of the elements in the first dimension. To explain better, I'd like X in array (0, X) to go up to say 4 and Y in array(1, Y) to only go up to say 2.
So there would be:
array(0,0)
array(0,1)
array(0,2)
array(0,3)
array(0,4)
array(1,0)
array(1,1)
array(1,2)
But no array(1,3) or array(1,4).
I'd also need to be able to use Redim Preserve to increase the size of the second dimension for each of the first dimension's elements.
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Nov 28, 2011
I need to put 2 different fields on the same line/row/subscript, into a one-dimensional array or list. I've done this before with a delimiter and then parsed it out later, but I wonder if there is a nicer way to do this?
I've done it this way before:
"John,Address1" PERSON_ARRAY(0)
"Greg,Address2" PERSON_ARRAY(1)
[code]....
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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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Oct 13, 2010
I'm a beginner at programming so I'm going through the Clearly Visual Basic 2008 book. There is a problem that I'm doing called JM Sales Solution and I need to create a one dimensional array with the information given.
JM Sales employs 8 salespeople. The sales manager wants an application that allows him to enter a bonus rate. The application should use the rate, along with the 8 salespeople, in an array, to calculate each salesperson's bonus amount. The application should display each salesperson's number (1 through 8) and bonus amount. as well as the total bonus paid, in the interface.
I did the interface that's not a problem. My problem is the Create Report code. I had the program running and displaying but it didn't display all eight bonuses or the Bonus and Total Bonus paid at the end. I did some tweaking and now I can't even get it to run again. This is the code I'm currently on
[Code]...
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May 30, 2012
I need to create a questionnaire with ten questions. The questions can be hard coded as labels. I will have a radio group box for each question, with options, Always, Usually, Sometimes, Seldom and Never. I will then need to store these values for each time that the questionnaire is answered, and another button that will show the question number and the answer count for each question up to that point in time e.g. [Code] I am also assuming I will have a button that when clicked, will identify the active radio button and add 1 to a counter? [Code]
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Mar 23, 2008
unordered 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]...
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Jun 21, 2010
I want to create a user defined data structure, which will be a 2 dimensional array such that each individual square of this 2-dimensional array will also store the score and the grades. ( Iam using VB.NET) More details:
for example: There is an 2 dimensional array with 3 columns and 2 rows, I want to fill each of the
(0,0);(0,1);(0,2) with their own score (Integer type) and grades (String Type).
And this is same for the rest of the squares i.e. (1,0);(1,1);(1,2) and (2,0);(2,1);(2,2)
After creating such custom data structure: "CustomArray", I should be able to create the instance of this custom data structure (which will be a class) and code something like this:
Dim objCustomArray as CustomArray
objCustomArray = New CustomArray
for i as Integer =0 to 3
[code]....
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Nov 3, 2011
I need to build an interface that allows the user to select a horse from a list. The horses are as follows: horse1, horse2, horse3 and horse4. The application should display the way the horse places with a 1 means the horse won, 2 indicates second place , 3 indicates third and 0 indicates the horse did not place. Application needs to display a summary of each horse's individual performance as well as the performances of the other horses. Table for keeping track of each horse is as follows:
5 races-how each placed
1 2 3 4 5
horse1 0 1 0 3 2
[Code]....
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Feb 20, 2010
I want to create a user defined data structure, which will be a 2 dimensional array such that each individual square of this 2-dimensional array will also store the score and the grades. ( Iam using VB.NET)
More details: for example: There is an 2 dimensional array with 3 columns and 2 rows, I want to fill each of the
[Code]...
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Feb 12, 2011
Consider the following code:
Dim arr1 As New List(Of Double)
Dim arr2 As New List(Of Object)
Dim timeStart As DateTime = Now
For x As Integer = 0 To 1000000
[code]....
It involves 2 lists. The first one is 1-dimensional, the second one is 2-dimensional.The first routine (which operates on the first list) completes in about .015 seconds. The second routine (which operates on the second list), however, takes almost 10 seconds. The only difference is that the second list is 2-dimensional.Is there a way to speed this up or am I doing something wrong? I have a program that requires several 2-dimensional arrays and it's running extremely slow right now. How can I speed it up so I get the same feedback that I'd get if the lists were 1-dimensional?
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Feb 17, 2010
I have a string containing many lines. Each line has many values separated by commas. Basically it's in CSV format. The number of lines is variable but the number of columns is always 7.
I can get each line into a one dimensional array using Split(Var, Chr(10)).
I'd like to make it a two dimensional array where the second dimension contains each comma separated value.
I've got
Dim VarArray1() As String = Split(VarText, Chr(10))
Dim VaryArray2(0 To VarArray1.Length - 1, 0 To 6) As String
Is there a quick way to get the contents of VarArray1 into VarArray2. I know I can do the following.
For Counter = 0 to VarArray1.Length - 1
Dim line as string = VarArray1(Counter)
Dim Values() as string = Split(line, ",")
For Counter2 = 0 to 6
VarArray2(Counter,Counter2) = Values(Counter2)
Next Counter2
Next Counter
But is there a quicker way to do it that doesn't require passing through each element of VarArray1 and then passing through each element of Values.
The eventual goal in all of this will be to find the highest value in the 3rd column (the arrays are strings at this point because not all columns are numeric). To do that once I get the values into VarArray2 I suspect I have to pass through each element VarArray2, i.e. VarArray2(Counter,2). Unless I can copy the whole third column into a SortedList?
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Feb 26, 2012
I have 9 1-dimensional arrays of bytes and 1 of them is empty, I want to make the empty one equal to the others put together like you would a string:
Dim bla As String = "bla" & "bla" & "bla"
'now bla = "blablabla"
but instead:
[Code]......
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Feb 20, 2012
I have an SQL statement like:
SELECT FNAME, LNAME, CITY from EMPLOYEE
How do I create a multi-dimensional array from a datareader which should store values like:
John, Doe, LA
Mike, Johnson, PASADENA
Freddy, Kruger, Long Beach
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Dec 15, 2009
I have a variable declared as...
Dim MyList as List(Of String)
I would like to create an array of these lists of string.
Something like....
[code].....
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Feb 9, 2010
I am having a problem understanding the following error message:
Value of type 1-dimensional array of string cannont be converted to 2-dimensional array of string because the array types have different numbers of dimensions This line seems to be causing the error:
New String((13) - 1) {}
I did a Google search on this but didnt come up with anything useful. I didnt even change the code.I just found this example online and copied/pasted it into a project that Im working on.
All code is listed below!
Calendar.aspx.vb
Imports System
Imports System.Data
[Code].....
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Aug 25, 2010
I need to append STRINg to Array and cast it 1-dimensionalArray
Dim remoteFileNames(0)
As
String
[Code]....
Here "FtpRemoteDirectory" is a string and ftpFileNames() is the Array String which list the FileNames.
and remoteFileNames is 1-dimension array
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Jun 8, 2009
I am a .net programmer vb & c# but i can't seem to figure out how to get my objects into a list or array in php. var mylist = new List<myobject>();
mylist.add(myobject1);
mylist.add(myobject2);
what i have tried. Products being a property for a collection of orderitems
$this->Products = getOrderItems();
public function getOrderItems()
{
$items = array();
[Code]...
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May 25, 2011
i read data from a textfile into a one dimensional array (string()) and refer to that later on to build a new list with just the lines i want. using chartData as New List (of String) I can load the List collection just fine. Now, I want to send the output to a table so I can bind it to a datagrid. using Split and AddRange breaks the one dimensional data up into new rows but I want this sort of thing:
"Row0 Cell0"->"Row0 Cell1 "->"Row0 Cell3";<line break>
"Row1 Cell0""Row1 Cell1"Row1 Cell3;<line break>
Note I provided for characters that can be used in a split function (-> and vbTab), which works, but the split in the List gives me a one dimensional array.
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Apr 4, 2011
How would I create a list of elements in VB.NET, save it to a .dat file, and make Ruby re-create such list (as an array) with such elements (they will be strings, booleans and integers)?
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Jul 27, 2010
I need to create a remoteable object with a method that sums up elements in an array list. How do i go about it?
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May 27, 2012
I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
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Jun 9, 2011
I developing a roster application (asp.net with VB + sql server) to let user input shift duty record, proposed screen as follows:for the database design, each staff will have one record per day.[code]I want to create a multi dimensional array to bind the gridview.Is that correct that I create a arraylist (for 7 days) and then a subarray for each day? How can I create a 7 dimensional array & sub array under this 7-D array in asp.net + VB ?
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Jan 23, 2009
How to redim a two dimenational array in VB.NET, when it reached it's upper limit,.Also want to preserve the data.
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May 10, 2012
I've been working on a VB project where I use a 1st drop down list to select a movie category and then in the 2nd drop menu, movies from that category will be displayed. The movies are stored in a 2-dimensional array by category. I've been able to edit my array but I'm having problems with my .AddRange() function. What would I have to put in those parentheses for the list (for each category) to appear in my 2nd combobox when the category is selected?
[code]...
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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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Apr 1, 2010
I declare 2-dimensional array at class level
Dim delItems(9, 9) As String
The array elements are then each set to "EMPTY". I create a new form in memory
Dim frm As New Form
I create a new DataGridView add columns to it and add it to the new form
Dim d As New DataGridView
frm.Controls.Add(d)
Now the problem.....this code give error when try to load contents of 2-D array into DGV:
For i As Integer = 0 To 9
d.Rows.Add()
For j As Integer = 0 To 9
d.Item(i, j).Value = delItems(i, j).ToString
Next
Next
Error is ArgumentOutOfRangeException (Index was out of range...)
When I check value of loop control variables, i = 0 and j = 1
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