How to copy list from another list?

Question

0.00/5 (No votes)

See more:

Hai I am having two classes and list here they are

public class Person
   {
       readonly List<Person> _children = new List<Person>();
       public IList<Person> Children
       {
           get { return _children; }
       }

       public List<Person> _Rightchildren = new List<Person>();
       public IList<Person> RightChildren
       {
           get { return _Rightchildren; }
       }

       public string  Name            { get; set; }
       public bool IsChecked { get; set; }
       public string Psize { get; set; }
       public ulong   ullSector       { get; set; }
       public ulong   ullSize         { get; set; }
       public string fType { get; set; }
       public string path { get; set; }
      public ImageSource ListIcon { get; set; }
       public IntPtr pNext           { get; set; }
        public IntPtr pChild          { get; set; }
        public IntPtr pParent         { get; set; }

       public uint     dwID                 { get; set; }
       public uint     dwSelfNum            { get; set; }
       public uint     dwParentNum         { get; set; }

       public IntPtr   pwcName            { get; set; }

       public ushort   wCT               { get; set; }
       public ushort   wAT                { get; set; }

       public byte     bStatus             { get; set; }
       public byte     bMarked              { get; set; }
       public byte     bNameLength          { get; set; }
       public ImageSource SystemIcon { get; set; }
   }

public class NodeDetails
	{
		public  List<NodeDetails> _childrenList = new List<NodeDetails>();
		public List<NodeDetails> ChildrenList
		{
			get { return _childrenList; }
		}
		public string Name { get; set; }
		public string Size { get; set; }
		public ushort DateModified { get; set; }
		public string FType { get; set; }
		public string Path { get; set; }
		public ImageSource ListIcon { get; set; }
		public bool IsChecked { get; set; }
		public uint SelfNum { get; set; }

	}

so i need to copy the list of _children into _childrenList i know both having different data types but i need atleast the data's of common data types variable .

What I have tried:

i simply tried to assign the value of both list.

Posted 29-Jan-21 0:51am

Fazil13

Updated 29-Jan-21 5:27am

Add a Solution

3 solutions

Solution 3

If both of your classes are fixed there is also another way - sometimes used by me :
You create in one of these classes (or both) a Property which has the Output-Type of the other class. For example inside the class 'Person' a Property 'toNodeDetails' - or the other way round ...

Posted 29-Jan-21 5:27am

Ralf Meier

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard Deeming · Accepted Answer · 2021-01-29T00:56:00

There is no connection between the Person and NodeDetails classes. To copy a list of Person objects into a list of NodeDetails objects, you would need to create a new NodeDetails instance for each Person, and copy the relevant properties.

C#

foreach (Person person in listOfPeople)
{
    listOfNodeDetails.Add(new NodeDetails
    {
        Name = person.Name,
        IsChecked = person.IsChecked,
        ...
    });
}

NB: There will not be any connection between the objects in the two lists. Updates to objects in one list will not affect the objects in the other list.

OriginalGriff · Accepted Answer · 2021-01-29T01:24:00

While Richard is right, the other solution is to derive your Person class from the NodeDetails class - that way you can use a Person instance everywhere you can use a NodeDetails (but not the other way around).

Since it's likely that you are using NodeDetails to construct a list or other collection, this seems like the most sensible approach, instead of trying to maintain two unrelated and incompatible classes.

How to copy list from another list?

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0