Get List Of String From Objects?
Aug 26, 2011I was wondering how I could go about getting a list of string from a list of objects, while removing duplicates[code]....
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Linq - Create A Concatenated String From A List Of Objects In 3.5?
Apr 27, 2012I figure I should use 'Aggregate' but apparently I am getting it wrong First I get a list of my Entity objects Dim employers As List(Of myEntity) = (New XXXX()).getZZZ(userName, userType) Then I figured this would be a way to put all the names in a string Dim names as String = employers.Aggregate(Function(current, [next]) current.Name & " " & [next].Name)
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Working With Generic List Of String Array Objects
Apr 7, 2010I'm writing a program that reads a directory of xml files (not well-formed), parses the xml, and dumps the data into an Excel Workbook.The file contents are similar in that they have many common xml nodes/attributes.Some files have additional nodes/attributes.The xml in these files represent configuration settings for a Web Application, one file per user.The expected output is a worksheet with a column for each node/attribute combination and a row of node/attribute values for each user.I'm just about finished with the program, but I've run into a bit of a snag.As the final step in the process, I need to loop through a generic list of array objects (that represent a user row) and send the array elements to Excel.I don't know the correct syntax to get the array objects out of the list and have been unable to find sample code specific to generic lists of array objects.[code]
View 3 RepliesThe SqlParameterCollection Only Accepts Non-null SqlParameter Type Objects Not String Objects?
Jan 18, 2012Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New SqlConnection("Database=Clinic_Management_System;Data Source=.SQLExpress;Integrated Security=True;AttachDBFilename=|DataDirectory|Clinic Management System.mdf")
Dim cmdRecord As SqlCommand
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.net - Function To Accept List(Of String), Array & String And Similarly Return List(Of String)?
Jul 29, 2011I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
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Create List Of Child Objects From List Of Parent Object?
Jun 2, 2011I would like to create list of child objects from list of parent object. Like If i have list of bookingroom which has one member room then i would like to create list of room from it.
eg. code:
Dim BookingRoomList As List(Of BookingRoom) = New List(Of BookingRoom)
Dim RoomList As List(Of Room) = New List(Of Room)
BookingRoomList = BookingRooms.FillGrid()
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Is there any short cut method instead of iterating over for earch?
VS 2005 Sort List Of Objects By Child List Order?
Jul 20, 2011I'm having a bit of a 'brain doner' moment here
I have a list of Objects. Each of these Objects contains a list of other Objects (pseudo code) :-
Private Structure Object1
dim Name as string
dim ListOfObject2 as List(Of Object2)
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I need to sort the list of Object1 by the Value in Object2. I have a comparison class which sorts Object2 by its Value nicely.
.net - Searching A List Of Objects In An Object List Using Linq?
Dec 22, 2010I have 2 classes
Public Class Shipper
Public Property ShipperID As Long
Public Property CreateDate As DateTime
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Linq - Create A List Of Integers From A List Of Objects?
Nov 23, 2011I'm trying to create a list of days(integer) from a list of dates(date).
I tryed to do this....
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Multithreading - Create Custom Objects/list Of Custom Objects In .NET?
Jan 24, 2010I need two seperate lists, which every item is Integer, String, Bitmap - and one which every item is Integer, String String. However I don't know how to do this, or even where to look - I've googled for custom objects and custom object lists. What I'm trying to do is this.Custom Object1 is Integer, String, Bitmap Custom Object2 is Integer, String, String
In one thread I'll be adding items to List1(Of Object1), and processing them, and adding the results to List2(Of Object2), however I need to be able from other threads to look at the list and say only give me the items where Integer = (my thread ID), is this possible? Any help, or even links to information that would be relevant to this request would be helpful?
C# - With LINQ, How To Transfer A List<List<string>> To List<string>
Dec 15, 2010I got an object of List<List<string>>I need to bring this into a ist<string>I have no idea how to do this with LINQ.
View 1 RepliesDisplay A List (Of Object) Which Has Single Objects And Child List (Of Object)?
Sep 6, 2011Limited to using v2.0 of .Net framework (we use VB.net) due to environmental constraints on our servers.I've got an ASP.net webpage which pulls data from a webservice that performs checks on user accounts in active directory. Operators can check multiple accounts at one time using the web interface. The webservice returns a list(of AccountCheck) objects which themselves contain single properties like username, email address, and List(of AccountError) objects which contain multiple properties.[code]What I want to do is using some kind of repeater, create multiple panels or divs which contain labels showing the username, email etc, and a gridview which has the accounterror list bound to it to show all the errors. The users could be checking 2, 5, 7 accounts at once, and is dynamic.
View 2 RepliesAdding To A List Of Objects
Nov 9, 2011I have an Object structured as follows:[code]I thought this would work but I keep getting the following error: Object reference not set to an instance of an object.
View 1 RepliesIntersecting List Objects?
Dec 18, 2009just needed to get my head round something. Say I have a class 'myClass' with properties ID and Name. Now say I have 2 lists of objects of this type as follows:
Dim list1 as List(of myClass) = GetList1()
Dim list2 as List(of myClass) = GetList2()
What I want is to 'intersect' (this may not be the right word!) the two sets of data by the Name property, but bring back the ID property from list1. A suitable database analogy would be if list1 and list2 were tables, I'd want to do a left join from list1 to list2 on the Name field.
List Of Objects Into SQL Query?
Oct 7, 2011The scenario is this, I have several variables that are set as a list(of objects). The values for these lists are populated during code via a SQL query. I want to be able to take these values and then use them within another SQL query. Each time the program runs the values will be different and there will be more or less within the list.
View 6 RepliesList Of Superclass Objects?
Aug 14, 2009I have a superclass NetworkTest and 3 derived classes PingTest, Pop3Test, SMTPTest. I want to create a big list of all the tests, like this:
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Looping With List(of Objects)
Oct 15, 2009I have a procedure in VB.net using VS.net 2008 which will get the list of Orders and build a XML file with the list of Orders as shown in the code below: As the number of Orders is getting huge, I want to build the XML file for every 500 Orders
[Code]....
Instead of building XML for all the records I want to create XML for each 500 records. I tried the following code and it is throwing an error saying Expression is of type Orders which is not a collection type.
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Objects To Interface With The GUI Instead Of List(Of T)?
Mar 9, 2010I have started using BindingList(Of T) for my generic collections whenever I need the objects to interface with the GUI instead of List(Of T). This has worked well for me so far but a few of my collections are stored in Dictionary(Of TKey, TValue) and there doesn't appear to be a corresponding BindingDictionary(Of T).
Has anyone else come across the necessity to use this, and how did they achieve it? Should I implement this myself? (How?) or is there a better solution already available?
Separate List Of Objects?
Apr 21, 2010Why I couldn't have a separate list of objects of the same class?
This one works,
Dim list As New List(Of Address)
list.Add(New Address With { _
.Country = "USA", _
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Sorting A List Of Objects?
Mar 16, 2012Suppose I have:
Public Class myClass1
Dim foo As String
Dim bar As String
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Add Objects Into A Doubly Linked List?
Dec 7, 2011I have a VB 2010 class like
Public Class cStar
Public Name As String
Public Magnitude As Single
End Class
I want to add stars into some doubly linked collection or list that is ordered by magnitude.
I tried to create my own list cList based on collection
Class cList Inherits collection error - collection not inheritable End class
I had hoped to enable things like
Dim Star1 as cStar
Dim Star2 as cStar
cList.AddFirst(Star1)
cList.AddLast(Star1)
Star2 = cList.Behead
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C# - Create A List Or An Array Of Objects In PHP?
Jun 8, 2009I 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();
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Create A Dynamic List Of Objects?
Mar 29, 2010I have to ask my first question at some point, so here she goes.I am trying to create a dynamic list of objects. The objects will have several types (String, Integer) associated with them. Currently I am forming a Collection as I instantiate new objects.Is there a prefered to map this collection to, say, a Datagridview? Will I have to Iterate through the collection and add the rows at each iteration?Would I be better served using an ArrayList or something else over a Collection?
View 8 RepliesDispose A List Of Disposable Objects?
Jul 18, 2010I am implementing IDisposable for a class and while disposing there is a internal list of disposable objects. Should I be disposing those object by looping through them.
public Class MyDisposable
Implements IDisposable
private _disposbaleObjects as new List(of OtherDisposables)
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Finding A Particular Item In A List Of Objects
Jul 5, 2011I have a question about locating a particular object in a generic list. I have 2 lists, one contains a list of every song in a library and the other contains only copies of some the those elements that are added to a playlist. How would I locate and change a value of an particular item in a list by comparing one of their variables such as name? Or find it's index in the masterlist.
View 14 RepliesLINQ Filtering List Objects?
Mar 1, 2011I have list object and I need to check id in a comma separated string using LINQ in VB.NET, something like this:
dim strId as String = "1,2,3,5,"
dim myList = from objmylist where objmylist.id in (strId)
List Of Objects - How Does SyncLock Works
Apr 22, 2011I have a List of objects shared by multiple threads, it sometimes generate IndexOutOfRangeException when trying to Clear. While searching for solution I found that I should use SyncLock while accessing the List. But my question if what is the importance of lockObject in SyncLock block
E.g. while clearing myList
Can I use
Synclock myList
myList.Clear
End SyncLock
or lockObject should be different from myList?
What I think about sysnclock is "lock is obtained for object specified as lockObject". What if I specify list to be cleared as lockObject, shouldn't the compiler supposed to obtain the exclusive access to list before clearing it ?
List Of Objects And Shared Events
Dec 8, 2010Okay so I've created a list of objects from a class like
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List Of Objects To Excel Spreadsheet?
Jul 9, 2009Anyone know of some code out there that does this already? I have a bunch of pages with data grids on them in an admin website they want to export them to Excel, was hoping someone had this written already
View 1 RepliesPass A List Of Objects To WCF Service?
Apr 26, 2011I'm trying to pass a list of objects to my WCF service, but it doesn't seem I can pass an object list from my console test application. I have an error that states:
Value of type
'System.Collections.Generic.List(Of
ConsoleTestingApp.ServiceReference1.LetterVariables)'
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