VS 2008 Create Rectangular Array From List?
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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Aug 2, 2011
I'm trying to do a tic-tac-toe console application for practice. I created a case statement for the user to pick which square they want to fill in. [code]...
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Dec 9, 2010
In a rectangular array which is correct or considered standard? dim array(row,column) as..or dim array(column,row) as. Not sure it actually matters outside of how it looks in your head.
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Sep 21, 2010
I'm working on a reporting section of code for an inventory app I'm making for my office.I call a text file, read every line into an array then populate information pages with what has been pulled from the text file.For reporting, I want to read every text file in the directory, reading each one into a multidimensional array.Thus I can call and report on each item, i.e.ItemArray(i,2) would be all systems with Windows 2008 EE..I have code that lists all files in the desired directory and counts each file, so I eventually get counts of how deep I need the first level of the jagged array to be. but not until after code execution. Basically how can I write each array of data to the jagged array.[code]But I get a null reference exception. "Use the new keyword to create an object instance".
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Sep 16, 2011
I need some constant arrays to be ported like this one:
[3] - first dimension
[2] - dimensions in each first dimension
[3] size of string array is needed in the language i'm porting from, y - 0, o - 1, \0 - 2 = 3 new RevTable[3][2][3] =
[Code]...
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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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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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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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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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Feb 5, 2010
I used an array for collecting data throughout my program. With "Redim Preserve" I increase the size along the way. However I understand that this method is not really efficient and recommended is to use: List
So I tried (simplified here):
[Code]...
But the line: "ExtInfo(indx).Done = True" produces an error: "Expression is a value and therefore cannot be the target of an assignment."Clearly I don't understand fully the concept of "List(Of T)"...
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Jun 28, 2010
How can i add an array on names in a list box And be able to add and delet name in a listbox ps sence i just fond out .net cant mke control array ill use listbox with an array of names in it
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Oct 24, 2009
new to Arrays/List and not sure how to use them properly
Dim deck() As String = {"Ac", "Kc", "Qc", "Jc", "Tc", "9c", "8c", "7c", "6c", "5c", "4c", "3c", "2c", "As", "Ks", "Qs", "Js", "Ts", "9s", "8s", "7s", "6s", "5s", "4s", "3s", "2s", "Ad", "Kd", "Qd", "Jd", "Td", "9d", "8d", "7d", "6d", "5d", "4d", "3d", "2d", "Ah", "Kh",
[code].....
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Feb 3, 2010
I am working on a Card game, and i have a little question. I want to put all the cards in a array or list. The problem is that the list need to be shuffled/randomised. But it should also be able to shrink. Witch of those 2 is better to use? And how can i shuffle them?
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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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May 18, 2010
I have an array of integers (5 x 5). Is it possible for an index to have a a list of numbers?For example, Row3, Column 4 has 10, 4 52,10 Array (3,4) = 10,4,52,10
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May 12, 2009
I have this .txt file with 5 lines, let's say:
I
Have
An
Easy
Question
If I wanted to add those lines to an array list position, how would I do that?
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Aug 6, 2010
I have seen and used Text.split with a single delimiter such as " ",-","-".". However I cannot find a method which allows multiple delimiters. I need to be able to split a richTextBox's text into an array list.
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Dec 24, 2009
When you use List(Of ) you can add different data types to that list, and a while back I remember JM told me to make a new type to list or something and I was wondering how to do that. I want to be able to make a list that has a large amount of text and each item is named so I can gain easy access to that item.
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Nov 29, 2009
I need want to create a array for the days of the week.
Dim DayOfWeek As Integer = Date.Today.DayOfWeek might give me 1 meaning monday, and i want it to looking in the array for the value 1 and find the one that matches.
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Apr 19, 2009
I am currently learning VB.net but for a project I need to create and array and pass it using a property. The data to be passed will be a train's destination, the time its due and the expected time of the train. I was wondering if someone could simplly explain how to first produce an array and then show how to pass it to a custom control
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May 18, 2011
I have a Datatable consisting of columns with Latitude and longitude I want to be able to pass through each of those values in each row into an array that can then be passed through a function which gets the distance between each row and a static. In short I am trying to get distance between one location and various others that reside in a datatable that will vary in size. Right now with this existing code I am getting 6 different locations into an array:
HTML
Public Function GetCoords() As Coord()
Dim myCoords() As Coord
myCoords(0).Lat1 = CDbl(list1_Lat.Text)
myCoords(0).Lon1 = CDbl(List1_Lon.Text)
[Code] .....
If I am on the right track I think I need to create a new array that will accept Lat and Lon from each row in my Datatable? My end goal is to be able to find properties within a certain distance of a property. In other words "return all properties that are within .25 miles of 12 Maple Street". I thought if I had Lat and Lon of a certain property there would be a formula that would give me the max and min Lat and Lon to be within a .25 mile radius. I have searched for how to get a radius, but didnt come up with anything I could comprehend. So instead I thought I would just get each properties (row) return the distance in a new column then loop through the table to return properties within the desired distance .25 miles etc...
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Apr 13, 2010
"Create an array to store 10 integers. Initialize all the array elements with -1."
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Oct 5, 2010
I have a string array that represents the field names for a table I need to create. Given that the first field type is date, the second is time, and the rest are floats, what is the easiest way to create the table? I am currently using the following code, but it seems there may be a simpler, less convoluted way
vb
'read the column names from the OPC server
Dim colNames() As String = GetFileColumnNames().Split(","c)
'build command string used to create the table
[code]....
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Feb 28, 2010
I have a table with 2 rows named timeStamp and value. I know I can iterate through the rows and create points and add them to a list (new point(timeStamp,value), but is there a way to do it without iteration?
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Nov 21, 2009
When I used to play wiith VB 5.0 I was able to create an array of comand buttons on the form. This allowed me to have one routine that knew which of many buttonshad been clicked and I could then take specific action based on which button was clicked. I can't see how to do this in VBE 8. Is this possible?
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Nov 5, 2009
I want to create an array of constant variables for my program. But from everything I read about arrays they are handled by a number. I want to be able to pass back a variable that will hold the name of the constant as well as the value. How would you go about do that.I want to when I type the variable to have the constant name show up as I am typing.
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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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Jun 29, 2009
I have the following code to create an array of serial ports.
[Code]...
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