Find Item In List Of Class?
Mar 9, 2011I have class called GroupSelect and made a collection List(Of GroupSelect)().Now I need find to RowNo = 4 in List(Of GroupSelect)() and get GroupSelect object.[code]
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VS 2010 : Create A New Class And Have Each List Item Of That Class Such As 'btnID', 'btnText'?
Apr 27, 2011I want to read a number of items from a file and then associate each of those items with a new button at run-time, so that when the user clicks one of the buttons I can display some information about that item.Can I use a LIST to manage these buttons and items? Can I create a new class and have each list item of that class, such as 'btnID', 'btnText', etc... ?
View 2 RepliesGet Type Of Derived Generic List Class From List Item Method?
Mar 23, 2011Public Class notifierMain
Public Class Contacts
Inherits List(Of row)
Public Sub New()
[code]....
When I debug this winforms application I get curType = "notifier.notifierMain+Contacts+row" I want to the Validate function to know it is in MyContacts. How do I do this?
Find An Item In An List(Of T) By Values X,y,z?
Jul 26, 2010I have the following setup[code]...
What I would like is a Item property in the collection that I can say [code]...
I know about predicates but what I am struggling with is how to set the criteria of the predicate (i.e passing x,y,z)
How To Find Whether Data Is In Item List
Mar 20, 2011In vb.net, I am having myList as List(of myClass) and myData as myClass. So how do I find whether if myList contains myData or not? Currently I am doing it like:
dim myList as List(of myClass) = myClasses.GetData()
dim myData as myClass = myClasses.getData(1)
for each Item as myClass in myList
if Item.uin = myData.uin then
msgbox 'yeah'
end if
next
Find Count Each Item In MultiDimensional List
Jul 28, 2010I have a class having 2 properties (both integers) and storing class into List collection.[code]Here I need return "TRUE". (values in "GroupNo" is not static and not in sort).How can we do that in vb.net?
View 2 RepliesFind Count Each Item In MultiDimensional List?
Jul 28, 2010have a class having 2 properties (both integers) and storing class into List collection.
Public Class GroupSelect
Public Property RowNo() As Integer
Get
[Code].....
Here I need return "TRUE". (values in "GroupNo" are not static and not in sort).
Find In List / Remove Item And Ignore Case Of Characters In String
May 20, 2012I'm having issues with finding something in list, and removing the item, ignoring the case of characters in string.
The code goes:
Dim listItems As New List(Of String)
Dim pattern As String = "AbC"
Dim array() As String
array = {"ABC", "abc"}
listItems.AddRange(array)
Here I'd like to remove all items from listItems, that are abc, no matter what case single characters of item are, including mixed case items. So in this example, every items should be removed
listItems.Remove(listItems.Find(Function(r) r = pattern))
If I change pattern to match the case of item, then item #2 gets removed:
pattern = "abc"
listItems.Remove(listItems.Find(Function(r) r = pattern))
How can I find item in listItems, ignoring the case characters in pattern?
C# - Find And Insert Into List Class Collection?
Mar 10, 2011I have class called GroupSelect and made a collection List(Of GroupSelect)().[code]...
View 1 RepliesPossible To Make List Box Item Height For Item Depending On Amount Of Lines That Item Contains?
Jan 1, 2012I have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.
View 11 RepliesFind "index" Item From List(Of T) Is In?
Feb 2, 2012I have a List(of String)Each item in the list has multiple values. i.e.
ItemList As List(Of String)
Get Selected Item Index Or A Sorted & Grouped List Relative To Item Source?
Feb 12, 2011I'm having some difficulty with a sorted & grouped listbox in WPF vb.net 3.5 that has an items source bound to an ObservableCollection.
What I want to be able to do is to retrieve a piece of data from the ObservableCollection items source depending on what item in the listbox the user has selected.I've almost got it working but because the listbox is sorted it does not match the index of the items source.
[code]...
As I previously mentioned, because the lstBox is sorted and also grouped the index's don't match up.Does anyone know how I can get the correct information I want from the List Source depending on the selected item in the list box?
Select An Item From A List Box And Click A Button And Have That Item Go Into Another Listbox With It's Price
Oct 13, 2011How someone would select an item from a list box and click a button and have that item go into another listbox with it's price? I seem to be stuck on this part.
Here's my code:
I want to select the first option from the first listbox and I want to put it into another listbox along with the price of that item on the same line in the listbox. I can't seem to figure out how to that.
Public Class Form1
Const dcmPRICE_STRESS As Decimal = CDec(595.0)
Const dcmPRICE_TIME_MANAGMENT As Decimal = 695
[CODE]...
Add To A Combobox A List Of Item (not Every Item) In A Txt Located On A Server
Feb 13, 2011my program downloads into a combobox every item(line) that is in a text file located on a server.
Every line in the text file ends with "a)" or with "g)".
Now I just want to make 3 radio buttons:
- one that will allow the download in the combobox only the item ending with "g)"
- one that will allow the download in the combobox only the item ending with "a)"
- one that will allow the download in the combobox of both (I already know how to do).
How can I do so?
To download the entire list in the combobox I do:
Dim List As String = client.DownloadString("http://mywebsite.com/mytextfile.txt)Dim lines As String() = List.Split(New String() {ControlChars.CrLf}, StringSplitOptions.RemoveEmptyEntries)ComboBox1.Items.Clear()
ComboBox1.Items.AddRange(lines)
Delete Item From List Box Select Next Available Item?
May 14, 2012how whould I go about deleteing an item from a listbox and it will select the next available item.you know like the treeview control selects the next node if you delete one.
View 2 RepliesDrop Down List Box (stop Selecting Item From List)
Jun 18, 2009i want to stop accepting form drop down listbox if certrain criteria is not met [code]how i can cancel the selection of drop down list?
View 3 RepliesVS 2008 Search Item A (from A List Of X Items) In List B?
May 5, 2010i want to search item A (from a list of X items) in list B but i want to get the item not found example Search ITEM A in LIST B if not found then return a print....if found continue with ITEM B..and so on.
View 5 Replies.net - Overrides A "list Of Base Class" Property And Returning A "list Of Child Class"
Oct 19, 2010I have a base class (ex: Class1) containing a list of another base class (ex: ClassA). Each child class of first base class (ex: Class1AA, Class1AB,..) containing a list of child class of second base class (ex: ClassAA, ClassAB,...)The client must never know which child class is using, then i don't think i can use generic for my bases classes.I try something like this and many more, but i always received errors..Imports System.Collections.Generic
[code]...
.net - List.Contains Based On A Property Of A List Item?
Jan 11, 2011I have a List myList of MyObjects. Is it possible to check if myList contains a particular myObject based on a property of myObject in VB.NET? In C#, you'd something similar to this right:
myList.Exists(myObject => myObject.property1 == 3)
Comparing An Item In A List Against Other Items In The Same List In .NET?
May 30, 2011I have a List(Of MyObj), and I want to iterate through that list and compare each element to all other elements in the same list, excluding (if possible) the same element. I have a solution that works, but it's slow and uses double For loops. It may possibly have also summoned Cthulhu from his sleep. This below is a sanitized version of what I have:
Dim MyList As New List(Of MyObj)({Obj1, Obj2, Obj3, Obj4, Obj5, Obj6})
If MyList.Count > 0 Then
For i = 0 To (MyList.Count - 1) Step 1
[code]....
How To Test 1st List Box If It Has Items More Than Other List Box But By One Item
Nov 15, 2011I want to know how to test the 1st list box if it has items more than the other list box but by one item, here is what i have: If lstInvisibleTv. Items.Count > lstInvisiblePc.Items.Count Then it works good if the lstInvisibleTv list box is greater than the other list box by one but it also works if it is greater the other one by one or more which I do not want. I want it to work just by one.
View 3 RepliesVS 2008 Adding Class Object To List Or Array In A Different Class
Jun 21, 2010I am trying to create an list or an array of a class.Here is my "Ingredient" class that I am trying to create a list of:[code]In my "recipe" class, I am want to create a list (or array) and I am drawing a big blank on how to do it. Can anyone point me in the right direction?
View 2 RepliesMake A Project Where A Teacher Views A List Box With A List Of Students Of A Class?
Nov 5, 2011I wish to make a project where a teacher views a list box with a list of students of a class. When he selects a name from the first list box the second listbox would change its data to show the grades for that one student.
View 10 RepliesVS 2010 List(of Class) - System.NullReferenceException Error When Add The Info To The List
Jan 27, 2011I'm getting System.NullReferenceException error when I try to add the employee info to the Employees list.
[Code]...
Convert A List Linq Expression To Defined List Class?
May 26, 2012y have this class
Private Class MyClass
Public Property propertyOne() as String
Public Property propertyTwo() as String
[code].....
Adding A List (of Class) Or Collection As Another Class's Property
Apr 2, 2010I'm looking for a tutorial on how to Adding a list(of Class) or Collection as another Class's Property.What I am after is something like the Columns Collection for the DatagridView control.I would like to add Items in the graphics screen. Where the item list is displayed in the left panel and the selected Item properties are displayed in the right panel.
View 4 RepliesUsing The List Class - Displaying Information From A List Into A Listbox
Mar 6, 2012I am trying to understand classes in VB 2010. I am a bit confused with displaying information from a list into a listbox.When I run the following code, the word collection appears in my list box. How do I drill down into 'hostnames' to display the info I want.
Public Class computer
Private _HostName As String
Public Property HostName As String
[CODE]...
Program That Will Compare Array Of Grocery List Items Glist And Array Of Coupon Item List
May 27, 2012I 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?
View 18 RepliesFind The Certain Item?
Feb 16, 2010For example, there are a lot of item in ListBox..so, how can i find the certain item that i need.. Let the item in ListBox as below
1234567899
9987654321
6666666666
8908899889
8678678768
5467676767
so, how can i find 6666666666 without using the scroll bar at ListBox
Array In One Class Writing To A List In Another Class?
Jun 3, 2011I'm designing a small GUI Windows program that allow staff at a cinema to reserve seats for customers. There will be a total of 60 seats in the cinema. I have two classes in my program:-
1.) MainForm.vb - used for I/O actions and user interaction
2.) SeatManager.vb - used to hold and handle the background methods and functions that make the program work Here is the code for my MainForm.vb class thusfar:-
[Code]...