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Combine two list data into single list C#

Tag: c#,linq

So i have following two list using linq.

List<One> one= A.Common
               .Join(B.Common,
                a => a.ID,
                b=> b.ID,
                (a, b) => new One
                {
                  ID = b.PID,
                  Name = b.PCName,
                  LastName = a.LName
                }).ToList();

List<One> two = (from c in D.Options
                 select new One
                 {
                   MainName = c.mName
                 }).ToList(); 

 List<One> sn = one.Concat(two).ToList();

I am concating both list. But when i debug i am getting MainName as null in sn list.

How do i get data from both list in single list??

Best How To :

This is how you do it:

var sn = one.Zip(two, (x, y) => new One{
  ID = x.ID,
  Name = x.Name,
  LastName = x.LastName,
  MainName = y.MainName
});

check if file is image

c#,asp.net,asp.net-mvc

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Regex that allow void fractional part of number

c#,regex

Just get the dot outside of the captruing group and then make it as optional. @"[+-]?\d+\.?\d*" Use anchors if necessary. @"^[+-]?\d+\.?\d*$" ...

Convert contents of an XmlNodeList to a new XmlDocument without looping

c#,xml,xpath,xmldocument,xmlnodelist

If you're happy to convert it into LINQ to XML, it's really simple: XDocument original = ...; // However you load the original document // Separated out for clarity - could be inlined, of course string xpath = "//Person[not(PersonID = following::Person/PersonID)]" XDocument people = new XDocument( new XElement("Persons", original.XPathSelectElements(xpath) )...

Convert Date Time to IST

c#

You need to use "India Standard Time" instead of "Indian". Please refer to this link for a list of the time zone descriptions.

Difference between application and module pipelines in Nancy?

c#,asp.net,nancy

The module- and application pipelines are explained in detail in the wiki. It's basically hooks which are executed before and after route execution on a global (application pipelines) and per-module basis. Here's an example: If a route is resolved to a module called FooModule, the pipelines will be invoked as...

C# MySQL Parameters.AddWithValue

c#,mysql

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c#,oop,architecture,software-design,code-design

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Visual Studio Assembly force-installs Target Framework

c#,.net,visual-studio-2013,.net-framework-version

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c#,multithreading,file-search

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DialogBox with value verifications

c#,.net,winforms

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c#,xml

Is "User Info" and "Course Data" is a different entity. If it is so, I think you may encapsulate them in one entity. XmlTextWriter writer = new XmlTextWriter(path, System.Text.Encoding.UTF8); writer.WriteStartDocument(true); writer.Formatting = Formatting.Indented; writer.Indentation = 4; writer.WriteStartElement("My Entity"); /* It is a biggest one*/ writer.WriteStartElement("User Info"); writer.WriteStartElement("Name"); writer.WriteString(userName); writer.WriteEndElement(); writer.WriteStartElement("Tutor...

MvcSiteMapProvider - Enhanced bootstrap dropdown menu

c#,twitter-bootstrap,asp.net-mvc-5,mvcsitemapprovider,mvcsitemap

node.Descendants should be node.Children Learn the difference on Descendants and Children here, CSS Child vs Descendant selectors (Never mind the post beeing about CSS, this is a generic pattern)...

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c#,visual-studio,setup-project

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c#,c++,marshalling

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c#,wpf,idataerrorinfo

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c#,xml,linq

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c#,asp.net,iis

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C# PCL HMACSHAX with BouncyCastle-PCL

c#,bouncycastle,portable-class-library

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c#,xml,linq,xpath,linq-to-xml

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c#,string,immutability,method-chaining

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c#,linq

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c#,.net,regex,string,replace

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c#,xml,foreach

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c#,asp.net,asp.net-mvc,json.net

Does the assemblyBinding tag have proper xmlns schema? Check if the issue you are encountering is same as Assembly binding redirect does not work

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c#,xaml,styles,wpf-controls

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c#,reflection,custom-attributes,spring.net

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c#,mysql

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c#,asp.net,.net,entity-framework,entity-framework-6

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c#

It looks like you have a typo in your loop condition: for (int index = filePaths.Count(); filePaths.Count() > 9; index--) It should be for (int index = filePaths.Count() - 1; index > 9; index--) Also note that for the first iteration of loop you're trying to access filePaths[filePaths.Count()] which is...

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c#,wpf,binding

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c#,linq,list,updates

I would do something like this: (for ordinairy lists) // the current list var currentList = new List<Employee>(); currentList.Add(new Employee { Id = 154, Name = "George", Salary = 10000 }); currentList.Add(new Employee { Id = 233, Name = "Alice", Salary = 10000 }); // new list var newList =...

Access manager information from Active Directory

c#,asp.net,active-directory

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c#,.net,windows,sendkeys

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c#,wpf,xaml,canvas

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c#,xaml,windows-phone

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c#,data-access-layer,bll

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c#,design-patterns,cqrs,command-query-separation

In such scenario I usually go with generating new entity Ids on the client. Like this: public class ProductController: Controller{ private IProductCommandService commandService; private IProductQueryService queryService; private IIdGenerationService idGenerator; [HttpPost] public ActionResult Create(Product product){ var newProductId = idGenerator.NewId(); product.Id = newProductId; commandService.AddProduct(product); //TODO: add url parameter or TempData key to...

Export data from table in Pervasive

c#,pervasive

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Foreign key in C#

c#,sql,sql-server,database

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Call Sync method call from Async Callback?

c#,asynchronous,synchronous

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Why is the task is not cancelled when I call CancellationTokenSource's Cancel method in async method?

c#,asynchronous,task,cancellationtokensource,cancellation-token

Cancellation in .Net is cooperative. That means that the one holding the CancellationTokenSource signals cancellation and the one holding the CancellationToken needs to check whether cancellation was signaled (either by polling the CancellationToken or by registering a delegate to run when it is signaled). In your Task.Run you use the...

Unconstrained type parameters casting

c#,.net,types,casting

The compiler sees the T2 and T identifiers and helpfully informs you that those types seem unrelated. That's absolutely correct, as they have no relation: there are no generic constraints that would assert any relations between them (I'm not saying that would be useful here though :) ). Whether this...

SQL Server / C# : Filter for System.Date - results only entries at 00:00:00

c#,asp.net,sql-server,date,gridview-sorting

What happens if you change all of the filters to use 'LIKE': if (DropDownList1.SelectedValue.ToString().Equals("Start")) { FilterExpression = string.Format("Start LIKE '{0}%'", TextBox1.Text); } Then, you're not matching against an exact date (at midnight), but matching any date-times which start with that date. Update Or perhaps you could try this... if (DropDownList1.SelectedValue.ToString().Equals("Start"))...

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c#,.net

Anonymous types do not provide operator overloads for ==, although it wouldn't matter in this case since one of the arguments is typed object. However the C# compiler does provide Equals, GetHashCode, and ToString implementations. Use the static object.Equals, method which will do the appropriate null checks and then call...

how can I add a column to IQueryable object and modify its values

c#,.net,linq,grid,devexpress

Simple example for using a non-anonymous class. public class MyLovelyClass { public Int32 Number { get; set; } public bool Selection { get; set; } } var packs = from r in new XPQuery<Roll>(session) select new MyLovelyClass() { Number = r.number }; gcPack.DataSource = packs; ...