There are plenty of seemingly related Linq questions, however a quick browse through the content doesn't seem to answer my question specifically enough for my limited intelligence to grasp.
We have a table named PropertyInteractions in which is stored threaded messages via a thread id, the thread identifier is the Id of the initial interaction record. Given the following Linq query (which retrieves all interactions concerning a user), how might I split interactions into lists of PropertyInteractions grouped by Id?
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 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.
I'm having a problem with a program I am re-making. I used to be quite good at this stuff but I stopped and now I've pretty much forgotten everything. In hopes of gaining my knowledge back, I wanted to remake a program I made years ago but I'm having a problem.
I'm trying to split a selected item in a list box. This is what the item looks like:
|DATA|DATA|DATA|DATA/ELSE|
I can split it fine using this code:
Private Sub ListBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Click Dim LineofText As String
I'm basically brand new to LINQ. I've seen some examples that allow me to strong type objects using LINQ but I don't really understand them because they're in C#, which I guess lets you do different things with LINQ(I think?). [Code] I just want to get a list of all the products from the XML doc and put them into a Generics list.
I have a range of strings (Basically filenames) and I want to strip them down. Basically I load a list of files (path/clubs/) and it lists them into a list box as club1.adf club2.adf etc. I then select club1.adf for example from the list box, and hit a button. The button then loads path/club1 into my application. So basically I want to split the .adf from the club1. Something like the following, I imagine?
I have seen and used Text.split with a single delimiter such as " ",-","-".". However I cannot find a method which allows multiple delimiters. I need to be able to split a richTextBox's text into an array list.
I am trying to use linq to query a List(of T) object, but when i type in my linq statement it comes back with the following error: Error57Expression of type 'System.Collections.Generic.List(Of BreakoutData)' is not queryable. Make sure you are not missing an assembly reference and/or namespace import for the LINQ provider.D:\Code\OLGA35\BreakoutByBusinessUnit.aspx17025D:\Code\OLGA35\
I have looked at my web.config and I have the imports:
I am trying to use linq to query a List(of T) object, but when i type in my linq statement it comes back with the following error:
Error57Expression of type 'System.Collections.Generic.List(Of BreakoutData)' is not queryable. Make sure you are not missing an assembly reference and/or namespace import for the LINQ provider.D:\Code\OLGA35\BreakoutByBusinessUnit.aspx17025D:\Code\OLGA35\
I'm using a program see here: Visual Basic Regular Expression Question. I enter letters and the program returns all possible combinations from list. I want change this line of code...
Dim result = fruits.Where(Function(fruit) Not fruit.Except(letters).Any())
If I have this list:
Dim fruit as List(Of string) from {"apple","orange","pear","banana"}
And I input "p a p l e r" then it would return "apple" and "pear", but if I enter "a p l e r" then it would return just "pear". The idea is to return all words, which can be made of entered letters without duplicating any single letter. How to optimize this Linq code?
Dim query = From o In myContainer.MyObjects Select o.MyStringProperty Distinct Dim myProperties As List(Of String) = query.ToList????? 'no way!!!' "query" type is IEnumerable(Of String)
I tried to use the query directly as a DataSource of a (infragistic) combobox, but it throws me NullReferenceException, so I decided to convert it to a listof strings, to be a more "classical" datasource.
Dim values As List(Of String) = query.AsQueryable().ToList() does not work either: Value of type 'System.Collections.Generic.List(Of System.Linq.IQueryable(Of String))' cannot be converted to 'System.Collections.Generic.List(Of String)'.
I have recently started using vs2008 for the linq feature but am having problems using it with a sorted list.my sorted list has a key of timestamp.I want to retrieve the first item from the sorted list having (key) timestamp <= myTimestamp.
I am trying to split a long string based on an array of words. For Example:Words: trying, long, array Sentence: "I am trying to split a long string based on an array of words."Resulting string array:Multiple instances of the same word is likely, so having two instances of trying cause a split, or of array, will probably happen.
I am trying to learn some VB.NET for my coo-op that starts next week, and for that reason i took my portfolio web site that is on C# and just started to converting it to VB.NET to get familiar with the syntax.
I am sure my problem is simple however i have a hard time solving it. I am trying to grab data with the linq query and then return it as list to bind to the Repeater.I have the following function:
[Code]...
And it would work fine. However if I try to use ToList() in VB.NET i am getting error that it cannot convert it from ling to sql List to the generic list. How do i do this convertion in VB.NET ? or maybe there is another way ?
I am decent when it comes to C# however somewhat lost with the VB.NET syntax.
I need to take a collection and group it via Linq but all the examples I've seen fail in some manner or other with some syntax difference that I can't quite lick.
My collection:
Dim a As New List(Of ProcessAlert) a.Add(New ProcessAlert("0000112367", "5551110000@txt.att.net", "Alert", 2)) a.Add(New ProcessAlert("0000112367", "5551110000@txt.att.net", "Document", 2))