What Is The Easies Way To Create A Arraylist Of One Type
Nov 5, 2009What is the easies way to create a arraylist of one type
View 2 Replies
ADVERTISEMENT
Create An Array Of An Array (or Arraylist Of An Arraylist) To Hold Strings?
Mar 20, 2012I want to create an array of an array (or arraylist of an arraylist) to hold strings.I want to fill an array1 with string values Then add this array to array2. - but only taking up 1 row in array2 e.g something like array2(index)=array1 Then clear array1 then loop through this again with different data, and add it to the array2.so will end up with something like
array2(0)... contains a collection of array1 data
array2(1)... contains a collection of different array1 data
.. and so on
i think i need to make new instances of array1 each loop, but not sure.I dont mind if it uses arrays, or arraylists, or lists, or structure of arrayslists?
Know The Type Of Item In Arraylist?
Apr 11, 2012I am defining an ArrayList type varaible. It can have of any type of items. I want to know the type of its item. Is there any way to know the type of items in the arraylist variable? I want to know the type of item in the for loop.
Dim ArrList As New ArrayList
Dim A As Integer
Dim s As String
[Code]....
ArrayList Of User Defined Structure Type?
Nov 19, 2008I have a structure like this:
Code:
Public Structure Interval
Public temp As Double
[Code].....
'I want to be able to add to the array like an ArrayList though... 'after assigning values, like this:
interval(0).add
Value Of Type 'cfeedback' Cannot Be Converted To 'system.collections.arraylist'
Jan 10, 2012Firstly, i have a grdData at my main page. After choosing the data i want and went to another page using
[Code]...
Create A 2 Dimensional Arraylist?
Sep 17, 2009Can I create a 2 dimensional arraylist in VB.net?
View 3 RepliesCreate An Arraylist Of LinkLabels?
Nov 5, 2009I am trying to create an arraylist of LinkLabels and am having the hardest time with getting everything to work and understanding event handlers. Here are my declarations:
Public Class Form1
#Region "Globals"
Dim arrayLink As List(Of LinkLabel) = New List(Of LinkLabel)
[code]....
I receive the error that Class 'System.Windows.Forms.LinkLabel' cannot be indexed because it has no default property'.
Create An Arraylist Of Objects?
Feb 11, 2010I use serializer classes for storing data and each class can hold an array of objects for the same class which is a key feature of the class. I declare this array as so:
myClassObjects(1000) as myClass
My question is- can I declare the array as an arraylist so I can sort and count objects in the array(list) quicker and easier and are there any drawbacks to taking this approach?
VS 2008 - How To Create ArrayList From MDI ChildForms
Aug 11, 2009I want to create an arraylist from MDI childforms and I did it like this:
vb.net
Dim sl As New SortedList(Of Integer, Form)
Dim i As Integer
Dim form As Form
For Each form In Me.MdiChildren
[Code] .....
It's working great, that means that if I delete a childform for example number 2 from all 3 then it creats first number 2 again and then number 4. Now the problem is that It only shows the childformnumber in the parentformtext instead of the name and number of that childform,like this: parentform - childform 1
VS 2008 - Create Or Initialize An Multidimensional Arraylist?
Apr 21, 2011may i have an simple example to create,initialize an multidimensional arraylist some thing like
Dim i As ArrayList()()() and add / retrieve the values from specified indices
Copy The List Of Principal User To Arraylist To Use Arraylist.indexof?
Dec 1, 2011What I am doing is iterating through all the groups that belong to the top group (Generic reports). Then I take advantage of the GroupPrincipal.GetMembers(True) which will recurse through a given group name. I test to see if the user exits under that group and if true I put the group name in an arraylist.
I use the for each principal in GroupPrincipal.GetMembers to loop through each returned user to see if they exist.
Is there a way to put all the returned users Principal.Name from a given group in GroupPrincipal.GetMembers into an ArrayList? This would allow me to to use Arraylist1.IndexOf to search for user. Which would be much faster then iterating through a returned list using the for each construct.
Sub RetAllMbrs(strUser As String)
Dim oPC As PrincipalContext = GetPrincipalContext() '<- this is function somewhere else in the code
[Code].....
VS 2010 Threading & ArrayList - Use Adding A String To ArrayList In Tread?
Jan 11, 2012I have a problem in Treading.I have a code like this;[code].....
I want to change ListBox1 with ArrayList. But I couldn't find how to use adding a string to ArrayList in tread.
Question If ArrayList Contains String Remove It From New ArrayList
May 6, 2010I have an arraylist (arrFirstArry) which I use to populate another arraylist (arrNoDuplicates) preventing any duplicates from being added. This works fine. What I would also like my code to do is prevent adding any partial values which may exist from being added. i.e. my array is like this
[Code]...
Struct - .net 2003 Arraylist Of Structure Which Have An Arraylist?
Sep 22, 2011I have two structures Public Structure myResearchData
Public batchName As String
Public arraylistRData As ArrayList
End Structure
Public Structure myResearchSubData
Public researchDescription As String
[Code]...
Cleared MyResearchData.arraylistRData for new data to be put in but it also clears the arraylist inside MyResearchDataAList and didn't old the contents of the arraylist
VS 2008 - Reading ArrayList In My.Settings And Add Another ArrayList To It
Sep 21, 2010What I need to do is read an ArrayList in My.Settings and add another ArrayList to it. The first think I'm trying to do is load My.Settings.Records into myArrayList. I'm not quite sure on the proper way to do this. I've tried things such as Dim myArrayList As ArrayList = My.Settings.Records, I'm not sure if I need New and I'm not sure if I need .Clone or .CopyTo.
Then I have another ArrayList myArrayList2. To get this into myArrayList I've done: [Code] Then to save it back to My.Settings I've done. My.Settings.Records = myArrayList. The problem is I keep on getting Object reference not set to an instance of an object error on the AddRange line. My.Settings.Records is definitely an ArrayList and it will sometimes = Nothing. The objects will only ever be strings.
Asp.net - Value Of Type 'System.Collections.ArrayList' Cannot Be Converted To 'System.Collections.Generic.List(Of ITextSharp.text.IElement)'
Sep 21, 2011I'm having a problem with this code in the highlighted line(*); getting the error in the heading.
Dim htmlarraylist As New List(Of iTextSharp.text.IElement)
htmlarraylist = *HTMLWorker.ParseToList(New StreamReader(tempFile), New StyleSheet())*
[Code].....
Create A Function Which Have Either 1 Parameter With A String As Data Type Or 2 Parameters With Double As Data Type?
Jun 11, 2012I need to create a function which have either 1 parameter with a string as data type or 2 parameters with double as data type.Something like the substring method.
View 2 RepliesCreate An Array Of List (not Arraylist) From A List?
Dec 15, 2009I 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].....
VS 2005 List(of T) - Create A List To Hold More Than One Control Type Or Create A List For Each Control Type?
Jan 20, 2011If I create a list for a TextBox:
[Code]....
I am able to only add controls that are of type TextBox. My question to you is, can I create a List to hold more than one control type or do I have to create a list for each control type?
Difference Between ArrayList In VB From ArrayList In C#?
Apr 12, 2012s there a difference between the arraylist in visual basic and arraylist in C#? I had to convert some C# code to VB and there is a call I make in a third party api that requires me to pass in an arraylist. When I do this in C# it works just fine, but when I do this in VB, I just get back a vaque exception from the api.
[Code]...
The exception I get is very vague and comes from the API. All i get is, "ARException Occured".
Could Not Create Instance Of Type
Jun 5, 2011I have created a UserControl Popup window and called that xaml file into another file. Imported the namespace.When I am trying to build this project an error at this below given code:
<Popup x:Name="POP" IsOpen="False" PlacementTarget="{Binding}" Placement="Center" AllowsTransparency="True">
<a:PopUpWindow x:Name="pp" />
</Popup>
Error at
<a:PopUpWindow x:Name="pp" />
Could not create an instance of type 'PopUpWindow'.
Create Our Own Primitive Type?
Oct 31, 2009there anyway that we can create our own primitive type? let's say we call this
Code:dim test = 4 then test will automatically be an integer right but i wanted this
Code:dim test = 4% and i want test not to be an integer, but a percentage_integer, in other words, my own primitive type. is that possible?
Create Something 'OF' A Variable's Type?
Sep 17, 2009I have some code like:
Lookup(Of String)("Testing")
Lookup(Of Integer)("Testing")
And both of those Lookups work great. What I'm trying to is call the appropriate LookUp based on the type of another variable. Something that would look like...
Lookup(Of GetType(MyStringVariable))("Testing")
I've tried to Google this but I'm having a hard time coming up with an appropriate search.
.net - Create A New System.String Type With Other Name?
Jun 23, 2011I try to describe my problem step by step because I do not know how to say it in correct programming terms.
When I use a System.String type, I do the following:
Declare the type: Dim Str1 as String
Assign its value: Str1 = "This is a string"
I want to create a new type that just like the System.String type but in different name. For example, I want to create a UrlString type for string like this:
Declare the type: Dim Str2 as UrlString
Assign its value: Str2 = "http://www.example.com"
My question is: How do I create the UrlString type?
The reason: I want to create the UrlString type to help me to identify the value of the content. For example, UrlString type means the string is in url format, PhoneString means the string is in phone format, CreditCardString type means the string is in credit card format and so on.
Class UrlString
Private ReadOnly value As String
Public Sub New(ByVal value As String)
[Code].....
Asp.net - Unable To Create Type - PageAdapter?
Aug 22, 2011Following this tutorial: http:[url].....It works in a test project of mine, but in my production project I get the following error: Server Error in '/products' Application.
Unable to create type 'Photocreator.ThemedPageAdapter'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Exception: Unable to create type 'Photocreator.ThemedPageAdapter'.
Source Error: An unhandled exception was generated during the execution of the current web request.Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[Exception: Unable to create type 'Photocreator.ThemedPageAdapter'.]
System.Web.Configuration.HttpCapabilitiesBase.GetAdapter(Control control) +889
System.Web.UI.Control.ResolveAdapter() +214[code].....
This appears on all pages, both projects are using framework V4.
Create A Constant Of Type Date?
Jan 19, 2009I want to create a constant of type date and assign it a list of 3 date. How can I assign a list of values to a constant. const dates as date=#1/1/2009#, #5/1/2009#.....
View 7 RepliesCreate A New Instance Of A Type Given As Parameter?
Mar 7, 2010I've searched for an answer and found some c#-examples, but could not get this running in vb.net:
I thought of something like the following[code]...
I know, I can create a new instance with the Activator.Create... methods, but how to create an array of this type or just declare a new variable?
Create A Program In The Form Type?
Jul 3, 2009im supposed to create a program in the form type. its supposed to ask the user for a number so i created a textbox for the entry for the number in the form and a button to execute the program. then the program prints a number of "$$$$$" dollar signs as the entered number. furthermore, only upto 5 "$$$$$" sings should be in a row. oh and i have to use the for-loop for this. i used to be do this when i did qbasic but i have completely forgotten the codes and syntax, etc.
View 11 RepliesCreate A Safe Type Programme
Mar 3, 2010im trying to create a safe type programme on visual basic, which has a set combination button which when first clicked opens up a box to allow a password to be entered, once entered the safe is locked until you enter the password and push a button to try the key,
View 1 RepliesCreate A Specific Type Of Priorityqueue?
Mar 5, 2010I want a priority queue that takes two or more entries and sorts by the first one. I already have a priority queue from some programmer named ookii. I had another one and tried that too. Both of them only take one entry, and that just seems useless to me.
Both of them are classes that say like, Dim pq new PriorityQueue(of T)You see, that of T is one element. I don't know what to do to make 2 or more linked elements that can be easily called from existing variables and stuck in a queue sorted by the first element. Basically what I'm used to using is like,Dim sl as new SortedList(thekey,thevalue)When i put things in there, I know what's going on at least.I don't have the experience required to create my own class unless you can walk me through what I need to alter in some other class. I barely know how to go to references and double-click a .dll file that someone else made so I can use functions from it.
I thought to put an array in the "of T" part of the priority queue I have already. But then I'm dimming a whole array every time I want a new entry to the queue. So I want like, a vector? Or some other multi-part entry for the "of T". Two "of T" parts would be ideal because I worked with Sortedlists well already.