C#

foreach (var line in Lines)
{
    var copyline = new LineTable();
    copyline = line;

copyline = line;

Quote:

If any soulution is there, can you please provide me.

using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Windows.Forms;

namespace ?????????????
{
    [DataContract]
    public static class PanelToNode
    {
        [DataMember]
        private static Dictionary<string, string> PanelNameToTreeNodeKey;

        //static ctor
        static PanelToNode()
        {
            PanelNameToTreeNodeKey = new Dictionary<string, string>();
        }

        public static TreeNode GetCurrentNode(Panel pnl)
        {
            // => Treenode
        }

        public static Panel GetCurrentNode(TreeNode node)
        {
            // => Panel
        }

        public static void Serialize(string filepath)
        {

        }

        public static void DeSerialize(string filepath)
        {

        }'

    }
}