Remove Items From Multidimensional List Using LINQ?
Jul 28, 2010Public Class GroupSelect
Public Property RowNo() As Integer
Get
[Code]....
Public Class GroupSelect
Public Property RowNo() As Integer
Get
[Code]....
I have two generic lists, named ListA and ListB. Both ListA and ListB could potentially have duplicate items. What I would like to do is use LINQ to grab the items in ListB that are not in ListA, but I'm unsure how to do so.
View 8 RepliesI am writing app in vb.net
I have two variables one with list of RoomRate and other with list of RoomTypes.
We have RoomRates and RoomTypes linked with RoomTypeInfo variable insite the RoomRate.
So how do i find the RoomTypes which donot have the RoomRates Defined.
My Sample Code:
class RoomType
property UIN as integer
property Title as string
end class
[Code]......
I have a listbox in my program and I want the user to be able to remove all Listbox Items with the click of a button.
I Figured this would work, Listbox1.Text = ""
i am making a card game and you get three cards in your hand at a time, i am using a list and random assigning to set the cards in my hand as different numbers but they keep being all the same numbers, here is what i have, what should i add to make it be a different number for every one
Dim hand1 As Integer
Dim hand2 As Integer
Dim hand3 As Integer
[Code]....
Good example using the List(T) object. I need to be able to add and remove items from it.
View 7 RepliesHow do i remove a selected item(s) from a list box called "LeftList" and add it to a second list box called "RightList"
[code]...
i am writing a program that reads a excel report from accounting software with our weeks orders on... so basically the program reads a list of around 100 items which all works fine.I also have a database that holds info on each item, when the excel sheet is parsed the software checks to see if any new items have been added to the list that are not on the softwares database. this is where i am having the issue.I have two lists: ItemsOrdered & ExistsingItems.
All the items ordered this week are in ItemsOrdered and all the items not in the items in the database are in the ExistsingItems list. using these two lists how can i find items that are in ItemsOrdered but not in ExistsingItems.
I'm supposed to create a linked list and add/remove items with a push/pop. Currently I can only push 2 items and pop one before it stops, and I'm not sure what I need to do to fix that.
[Code]...
I have a list of "ObjDay" which could have replicated items. How can I select them?
ObjDay is:
Public class ObjDay
_date
...
End Class
[Code].....
Could not find this through Google or in SO questions.I have a checkbox listbox on my form. I want to filter my List by the list of selected Ids from that listbox that are checked, in SQL I would have done this like "Where TypeId In (1, 4, 5, 7)"... how do I do that in LINQ?
I feel like I am missing a really obvious answer, but cannot get it.
For argument sake... here is the what I have for sample data:
In Colors (List<of currentColors>)
ID, Name, TypeId
1, Red, 1
2, Blue, 1
3, Green, 2
4, Pink, 3
Selected Types 2 and 3 in CheckboxList: filteredColors
[Code]...
No matter how I try, I can't seem to create a nice and clean algorithm for doing the following:
System.Array (or generic List) data of System.Object
System.Array (or generic List) xval of System.Object
System.Array (or generic List) idxs of System.Int32
[code].....
I have a List object and I want to remove the duplicated items but leaving at least one of the duplicated items in the list;I wrote something like this however I would optimize this code for better performance, is there something faster?
Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Dim rnd As New Random()
Dim mylist As List(Of String) = Enumerable.Range(1, 100).Select(Function(i)
[code].....
i i have a listbox and 1 button in my application thing i want is when i click on some listbox item auto press that button or when i click on some item in list box it remove selected items from list box just with mouse click
View 3 RepliesIf I have the following array:
Dim Array(4, 10) As String
Array(0, 0) = "100"
Array(0, 1) = "200"
[code]....
How do I get the following count:
0 = 2
1 = 4
Is it possible to have a multidimensional list? For example the equivalent of a multidimensional array by using lists. If so would it be done similar to the following?
CODE:
If not does anyone have some suggestions? It just seems that the above code is sort of sloppy and looks incorrect for some reason.
I 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 Replieshave 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).
I am trying to initialize a dropdownlist in VB.NET but my dropdownlist is not populating any values. I want the DataTextField to be different from DataValues in the dropdownlist. Dropdownlist should display series of strings; DataValues should only be numbers.[code]...
View 2 Repliesi have a listview box full of items, image below:
when i click a button i would like a msgbox to pop up displaying how many are alive.
How would i do this ?
Also how would i remove all items that status is "Dead"
Imports System.Collections.GenericI
mports System.Net
Imports System.IO
Public Class Form2
'Dim filename As String
Public ftpSettings As FtpClient
[Code]...
I don't know what's wrong, i can only move the 1st item but the second and so on doesn't make any changes. It remains in a listbox.
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
I have the following linq statement to go through a dropdown menu's sub items and get what items are checked: vb Dim UnselectedItems = From xItem As ToolStripMenuItem In tsiSelectObjects.DropDownItems Where TypeOf xItem Is ToolStripMenuItem AndAlso CType(xItem, ToolStripMenuItem).Checked = False
I get this error tho: Unable to cast object of type 'System.Windows.Forms.ToolStripSeparator' to type 'System.Windows.Forms.ToolStripMenuItem'. As you can probably guess i have ToolStripMenuItems and separators in there
However the AndAlso should short circuit in the case where the item is not a ToolStripMenuItem and it doesn't seem to be doing so (as TypeOf xItem Is ToolStripMenuItem=false in this case)?
I am trying to remove items from a listbox based on the items on another listbox, this seems simple but apparently[code]...
View 1 Repliesy have this class
Private Class MyClass
Public Property propertyOne() as String
Public Property propertyTwo() as String
[code].....
How can I get a new distinct list from an existing list using LINQ? This is what I have so far and it is not distinct but does give me a new list.
Dim tmpQryColumn = (From a In _allAudits
Select New CheckBoxListItem
With {.Id = a.AuditColumn, .Name = a.AuditColumn}
).Distinct()
_columnList = New List(Of CheckBoxListItem)(tmpQryColumn)
I have 2 classes
Public Class Shipper
Public Property ShipperID As Long
Public Property CreateDate As DateTime
[Code].....
How can I get a new distinct list from an existing list using LINQ? This is what I have so far and it is not distinct but does give me a new list.
Dim tmpQryColumn = (From a In _allAudits
Select New CheckBoxListItem
With {.Id = a.AuditColumn, .Name = a.AuditColumn}
[code]......
I'm trying to create a list of days(integer) from a list of dates(date).
I tryed to do this....
[Code]...
This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...