Loop Against A List And Fill Another List From Its Data Using Linq

Jul 29, 2010

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]...

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Images Into An Image List Then Using That To Fill A List View?

Jul 24, 2009

I am loading a series of JPG images into an image list then using that to fill a list view. My program is using ALOT of memory by doing this. What would be the easiest way to add the images but take up less memory/time?

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Aug 15, 2011

is it possible to fill a list box from two SQL tables firstname lastname.

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Determine If Property Is Generic List<of T> Via Reflection And Loop List Items

Oct 1, 2009

I'm looping all the properties in an object via reflection:

For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next

how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.

I've experimented with GetType and TypeOf but have not managed to get anything working.

To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?

(VB.NET 2005 with .Net 2.0)

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Convert A List Linq Expression To Defined List Class?

May 26, 2012

y have this class

Private Class MyClass
Public Property propertyOne() as String
Public Property propertyTwo() as String

[code].....

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May 27, 2009

how to fill List View and Data Grid from a Database (SQL Server).

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.net - Create New Distinct List(of T) From Existing List(of T) Using LINQ?

Jun 1, 2011

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)

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.net - Searching A List Of Objects In An Object List Using Linq?

Dec 22, 2010

I have 2 classes

Public Class Shipper
Public Property ShipperID As Long
Public Property CreateDate As DateTime

[Code].....

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Create New Distinct List(of T) From Existing List(of T) Using LINQ?

Mar 12, 2010

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]......

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Finding Items In One List That Aren't In A Second List Using Linq

Jan 25, 2011

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.

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Linq - Create A List Of Integers From A List Of Objects?

Nov 23, 2011

I'm trying to create a list of days(integer) from a list of dates(date).

I tryed to do this....

[Code]...

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Loop To Total List Box Data

Oct 17, 2009

I'm trying to add all of the totals within a list box, which would then be displayed in a label.[code]

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Getting List Of Items Not In Parent List Using LINQ

Mar 28, 2011

I 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]......

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XML To LINQ - Get List Of All Products From XML Doc And Put Them Into A Generics List

Jun 30, 2009

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.

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Extract Some Data From A List With A Linq Querry?

Nov 15, 2010

I need to extract some data from a list with a linq querry like

(from p as MYClass1 In List where P.Datetime> UserDate1 P.Datetime< UserDate2 Select p Skip (StartPoint) Take (Range)

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How To Group And Merge List Of Data Using LINQ

Apr 19, 2011

I have a list of data as shown below

Original Data
Genre Name Year
Comedy Shrek Forever After 2010
Drama The Karate Kid 2010
Action Iron Man 2 2010

[Code]...

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Read A List Of Data Into An Array Using A FOR NEXT Loop

Mar 1, 2010

I cut my programming teeth on QBASIC so apologise if I'm a bit behind the times. I wrote a program in QB and I'm trying to convert it to VB.NET. One stumbling block I've hit is the DATA & READ facility, there does'nt appear to be an equivilant in VB. I want to read a list of data into an array using a FOR NEXT loop.

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Asp.net - List Of Select Data In Entity Framework (linq)?

May 4, 2012

This is my function:

Public Function GetAllEmployee() As List(Of Employees)
Return DB.Employees.Select(Function(q) New With {q.EmployeeID, q.LastName,q.FirstName}).ToList()
End Function

I'm getting an error:

Value of type System.Collections.Generic.List(Of <anonymous type>) cannot be converted to System.Collections.Generic.List(Of NorthwindModel.Employees).

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How To Use LINQ To Find Matching Data Against A List Of Strings?

Jun 22, 2010

I have a specialized string dictionary of (string, string) (_RulesAndTheirDescriptions) that contains the name (key) and description (value) of methods in a given class. I currently do the following query to search for a match on the key or value and then bind that to a grid.

[Code]...

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LINQ Query To Group Data Between Two List Collections, Populating A Nested Object

Oct 26, 2011

I have these objects:[code]Using LINQ I need to take a List(Of MakeInfo) and a List(Of ModelInfo) and aggregate the StockInfo from ModelInfo into the List(Of MakeInfo).So for each MakeInfo I will have a total count of all stock where MakeInfo.Name = ModelInfo.Make, and also a minimum price.I think it's going to be something like this, but I'm having trouble accessing the nested object and not sure if it's going to be possible with a single query.[code]

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C# - With LINQ, How To Transfer A List<List<string>> To List<string>

Dec 15, 2010

I 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.

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VS 2008 Student List Views - List Boxes And Data Fro Access DB Tables

Dec 30, 2010

This is what I'm sure will be the first of many noob-ish questions from yours truly... I'm studying as a mature student for a Computing Degree (encompassing web design, hardware, programming and systems analysis). The programming seems to be my weak spot this year. I enjoyed C++ last year, doing basic console applications, but progamming visually with VB in Visual Studio 2008 I'm struggling!

[Code].....

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How To Fill A DataTable With A List(Of T) Or Convert A List(Of T) To A DataTable

Nov 26, 2009

I have read many posts on this topic; among them and most recently .NET - Convert Generic Collection to Data Table. Unfortunately, all to no avail.

I have a generic collection of structures :

Private Structure MyStruct
Dim sState as String
Dim lValue as Long
Dim iLayer as Integer
End Structure

Dim LOStates As New List(Of MyStruct) I need to fill a DataTable with this list of structures but have no idea how to go about doing this. I am using vb.net in Visual Studio 2008.

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LIST VIEW - Display The Data About In The List Box

Aug 4, 2010

I have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.

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Use Data From A .txt File To List The Grades In A List Box?

Dec 3, 2009

I'm an instructor trying to use data from a .txt file to list the grades in a list box. I just want to grab the data from a .txt file, list the total amount of grades in a list box, the mean (avg) and the standard deviation.

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Looping Through A List Fill A Table?

Jun 22, 2010

I am trying to move through a list "TodaysCard" and print the TimeOfDay.ToString into the first column of every row and to only create the amount of rows that are needed. But am a bit of a novice when it comes to this and can only get it to display the TimeOfDay.ToString value for the first item in the list over and over again. Just wondering how I can get it to iterate through each item properly.

For Each Race In TodaysCard
With (Race)
Try

[Code].....

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Use Arrays To Fill Out A List From A Database?

Nov 30, 2010

My problem is that i am trying to use a list box to display all the data from one column in one table of my database. and so, i dont know how to do that although someone hinted at using an array, i'm just not entirely sure how also when the list of data is displayed i aim to have a 'select' button that will take the user to the record of the selected item from the box.

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Fill Combobox With List Of Control Names

Jun 17, 2010

I have a WinForms applciation, I wrote a function that returns a list of all the controls on the form. The function returns a list of control objects.My target is to fill up a combo box with a list of the control names so that once clicked I set focus to it.So what is the correct code for converting a List(Of Control) to an array of string.

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Fill Combobox With List Of Control Names?

Jun 17, 2010

Fill Combobox with List of Control names

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List The Steps To Fill A Combobox Using A Bindingsource?

Apr 21, 2009

list the steps to fill a combobox using a bindingsource. I dragged a bindingsource onto a form, created a datatable and datatableadapter(correct term?), added a query. I tried but I am missing something, my combobox displays System.Data.

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