Reading ArrayList Of Custom Items
Oct 19, 2010I have
Public ReadOnly Property StaffMembers() As ArrayList()
Get
Dim index As Integer
Return vStaffMembers(index)
End Get
End Property
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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.
.net - Arraylist Of Custom Classes Inside My.Settings?
Oct 17, 2010I have a Visual Basic .Net 2.0 program. I'm moving the settings from an older settings file, to an app.config program settings file. I'm trying to do this as nicely as possible.
So, I added my setting as shown in this image.
On load I do this:
If My.Settings.databaseConnectionSettings Is Nothing Then
My.Settings.databaseConnectionSettings = New ArrayList()
End If
[Code]....
So, the question is, how do I get that arraylist of my DatabaseConnectionSettings saved to persistent storage? I want to do this in the cleanest way possible. That is, I don't want to have to convert it to a string or save it to a separate file every-time I want to use it. I would like to be able to use the My.Settings accessor method.
Adding Custom Object To ArrayList At Runtime?
Jan 5, 2010I am having issues adding a custom object to an arraylist at runtime.
Details of what Im trying to achieve.
My object is Fixture which represents a light. My light has the following properties:
Name, isMover, HighlightValue, UserNumber, Channels.
Channels is a dynamic arraylist which lists all the different channels of the fixture. A channel could be the lights colour or its intensity. A channel has the following properties:
Type, FeatureGroup, Value, Universe, Address, Slots and Offset.
Slots is the same again, breaking down to another ArrayList with more details.
Code:
Private Sub Patchingtest()
Dim TestFixture As New Fixture_Structure
Dim Intensity As New Channel
[Code].....
Sort ArrayList Of Custom Objects By Member?
Sep 3, 2009How can I sort an ArrayList of custom objects by public member? Example,If I have a list of article objects, and I'd like to sort the list by the rating member after I've filled the ArrayList
Public Class Article
Public bulletin As String
Public rating As Integer[code].....
Now I'd like to sort uniqueArticles by rating and print articles by rating order.How do I do perform that sort?
Arraylist X2 - Filter Out Items?
Oct 19, 2010This is bugging (my head is now switched off).I have two array's, one populated with dynamic elements and the other with static values. I am trying to filter out the values that i dont want from one of the arrays:
Dim arrFormItems As New ArrayList
arrFormItems.AddRange(arrSplitValues)
Dim arrItemsRemove As New ArrayList
[code]....
No matter what i do, i cant filter out the values. Tried the compare method as well..
Using Arraylist To Insert Items Into DB?
May 23, 2011I have created an ArrayList with items in my Order.aspx.vb. I pass these on to my bllOrder, which passes it on to my dalOrder.
Order.aspx.vb
Dim item As RepeaterItem
For Each item In rptProductList.Items
[code]....
Sorting A List Based On An ArrayList Within A Custom Object
May 24, 2010I am using a list to keep track of a number of custom Row objects as follows:
Public Rows As List(Of Row)()
Row has 2 properties, Key (a String) and Cells (an ArrayList).
I need to be able to sort each Row within Rows based on a developer defined index of the Cells ArrayList.
So for example based on the following Rows
Row1.Cells = ("b", "12")
Row2.Cells = ("a", "23")
Rows.Sort(0) would result in Row2 being first in the Rows list. What would be the best way of going about implementing this?
Asp.net - Want The Checked Items In The Arraylist To Be Added?
Jan 28, 2011having trouble only adding the checkboxstatus's that are checked to the gridview.
[code]...
Find Average Value Of ArrayList Items
Jan 28, 2009I've got an arrayList full of ints, how do i find the average value in it?
View 2 RepliesTextbox AutoComplete - Items From ArrayList
Mar 19, 2008I develop an application in vb.net and mysql server for data storage. I have a problem in my database I have something like 5000 codes stored like code, description, quantity, price, firm. I have a function to extract all the codes from database , it takes about 4,4269 ms to extract all 5000 codes with description and everything... in an arraylist. When I want to put all codes from arraylist in a textbox autocomplete, it took about 2305,400 ms and I think this is a big problem the function to put in textbox autocomplete all the items from arraylist:
Code Snippet:
Public Sub PopuleazaTextBoxDinListaCoduri(ByVal txtbox As TextBox, ByVal list As ArrayList)
txtbox.AutoCompleteMode = AutoCompleteMode.SuggestAppend
txtbox.AutoCompleteSource = AutoCompleteSource.CustomSource
Dim valoare
For Each valoare In list
txtbox.AutoCompleteCustomSource.Add(valoare)
Next
end Sub
This is one item from arraylist extracted from database in this format :
code4993 ->description of code4993(3 buc X 234 lei)
Best Code For Performance To Check If A .net Arraylist Have Two Or More Items With Same Value?
Mar 23, 2012I don't want check if an item with a value exists in the arraylist,I want to know the best code for performance to get how many occurrences of the same item with the same value exists in an arraylist.
View 2 RepliesSet The Total Number Of Items In Arraylist As An Integer
Nov 16, 2009When I try to set the total number of items in my arraylist as an integer I get this error:
[Code]...
VS 2008 Move Items Between ArrayList And ListBox
Mar 23, 2010I need to know how to save listbox items into ArrayList And restoring these items back from Arraylist into Listbox I tried this code but it returns Null Error Exception
[Code]...
Count How Many Items Are In An ArrayList And Then Save That Into A Label Variable?
Sep 9, 2011I am trying to count how many items are in an ArrayList and then save that into a Label variable that is updated each time an item's barcode is scanned.Information about the code below:rejectedList is the ArrayList that contains rejected parts.RejectedPartsNumberLabel is the label I am trying to update with the count from the ArrayList
Public Shared Function isFault(ByRef code As String) As Boolean
rejectedList.Add(code)
RejectedPartsNumberLabel.Text = rejectedList.Count
Return (code.Length = 7 And IsNumeric(Mid(code, 1, 1))) Or (code.Length = 4 And Mid(code, 1, 2) = "NC")
End Function
VS 2010 Custom Type Array / List With Adding Items And Specifying Custom Type Variable
Jun 21, 2011I recently downloaded VB 2010 Express so i am quite new to the language, but i have worked with dark basic, which seems to b very similar.Anyway, my problem is that i cannot seem to correctly set out my array of a custom type/class. i am trying to create two arrays, one of available entities and another of selected entities of which the user selects the entities to be dealt with in irrelevant ways. i have creates a button (called test) which adds some entities to the available list and all the entities come back the same value but they shouldnt be as you'll c in the code. i have run the step into command a found that "available.item(#).Name = " will change all of the entity's names.As of current i am working with lists as the array kept asking for a 'new' statement but i couldnt figure out where to put it.[code]
View 7 RepliesCopy 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.
VS 2008 Reading Custom Syntax
Oct 29, 2010I'm trying to read my custom made syntax from a text file.[code]Okay from that line all I'm trying to read is "01" and "C:ext.txt"
View 5 RepliesASP.NET Cast ArrayList Of Objects To Custom Objects?
Aug 9, 2011getting the following error Unable to cast object of type 'System.Object[]' to type 'OrderService.webdirect_WebLinesRow[]'. On the line
webdirect(web_companyID, web_locationCode, web_customerNumber, web_orderNumber, web_orderReference, web_orderDate, webLinesArray.ToArray(), o_Company, o_LocationCode, o_CustomerNumber, o_OrderNumber, o_OrderStatus, o_OrdDescrip, webRespArray)
I created the webLinesArray.ToArray() array as such
Dim webLinesArray As New ArrayList()
Am I missing an additional cast or something ?
Reading Custom Properties From An Access File?
Oct 6, 2009I'm trying to build an app that will read custom properties set in an accdb file. Basically, I'm trying to build a Front End updater (Yes I know there are others already built, but they don't work the way I want). The Custom properties are initially set manually by pressing the Office button, going to Manage, then Database Properties and selecting the Custom tab.
I've got most of the code set up, but my sticking point is how to read the custom properties.
Following is the function I use within Access VBA to get the properties, but obviously this is not going to work in VB.Net.
[Code].....
I think I need to replace one or more of the 4 lines after the On Error (yes I know I need to change the Error trapping too). I'm guessing I need to connect to the database file (an accdb, btw) and then go from there to define the container and documents collections.
VS 2008 Reading A Custom File Format?
Oct 20, 2009The file format has already been explained to me, and I can easily view it in notepad to understand it. It's basically a text file with a fancy extension and what not. The only problem is that I need to read it and pull a certain span of data from it.Here's the basic format:
8200
3251
1
[code].....
This is the first 10 lines, which is useless data for me. However, right after the first 10 lines, is a span of an unknown quantity of lines that I do need that are formatted like so:grassC:Program FilesMicrosoft GamesHalo Custom itiondatalevelsestlood_creekitmapslood_creek groundThe first line is the name of a bitmap assigned to the ID, while the second line is the path to the bitmap.Finally, after the unknown span of lines, there are two lines that go in this order:01Which I can safely assume at this point that the list no longer needs to be read.What I need to do is be able to open this file, skip over the first 10 lines which are completely useless, and then pull out the unknown gap of lines, and then stop reading when the line is '0', or at the end of the list.
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
Reading Items From File And ComboBoxes
Oct 21, 2009I'm program that uses quite a few different comboboxes. Essentially drop down boxes to prevent invalid user input. Anyways, the problem I've run into is when I'm loading files that will populate those combo boxes. Essentially, certain selection in the combo boxes invalidate selections in other boxes. What I'm doing is taking a text file, and reading it line by line. Each line is based off the combo box selections previously made and saved using the same application. Returning to the same screen, I want to populate the combo boxes with the data previously selected.
I'm initially populating the combo boxes in program with
<combo box>.Items.Add()
Other than searching item by item for the proper text, getting the index of of that text, and then setting that as the selected item?
So what I'm thinking of doing is this...
Dim Fin As System.IO.StreamReader
Fin = System.IO.OpenText(FileName)
Dim sInput As String
Dim iIndex As Integer
[Code] .....
Custom ComboBox And Class Items
Apr 14, 2009I have a custom combobox. Items are of this class
Public Class CustomItemsCombo
Public Sub New(ByVal valore As Integer, ByVal descrizione As String)
Me.Valore= valore
Me.Descrizione= descrizione
End Sub
[Code] .....
Make Custom Listbox Items?
May 14, 2012I just started my WP7 programming journey. I need to add 2 text lines as an item to the listbox.
View 1 RepliesResizing Items In Custom Panel
Sep 3, 2011I've been programming a Fisheye-panel that holds image and make it behave like the icondock in Mac Os X. But now i have a problem. When i add to many item, i want them to shirk, to make room for more, or grow when i remove icons. This is the behavior i get: When i want them to grow, they don't grow at all. When i want them to shrink, they shrink, but leaves lots of empty space (like replacing a photo from a frame with a smaller photo. The image shrink, but not the frame)
[Code]...
Retrieve Custom Listbox Items Value?
May 15, 2012This is how I add the 2 textblock to my listbox as an item
Dim StkP As New StackPanel
StkP.Name = "Stack"
Dim txtLine_1 As New TextBlock
[Code]....
But it is always returning the last input of "lblScore_1"
Saving Multiple Items To One File Then Reading It Again?
Jan 17, 2011Lets say you have a few text boxes, I know how to save the information in each box to a text file, but that creates a file for each box. Is it possible to save the contence of lots of different text boxes to 1 text file, and then when loading them it would load it all back to the right places?
View 9 Replies