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hi i have problem with my thread threadid is 74379 it is not loading the thread please solve my problem thank you

Nilanka Dharmadasa · Answer

Hi Srinivas, You should implment IEquatable interface for that. using System; using System.Collections.ObjectModel; using System.Collections.Generic; using System.Linq; using System.Text; //this is my class public class LibraryClass : IEquatable { #region Fields int bookId; string bookName; string category; string authorName; #endregion #region Properties public int BookId { get { return bookId; } set { bookId = value; } } public string BookName { get { return bookName; } set { bookName = value; } } public string Category { get { return category; } set { category = value; } } public string AuthorName { get { return authorName; } set { authorName = value; } } #endregion public LibraryClass() { } public LibraryClass(int a, string b, string c, string d) { this.BookId = a; this.BookName = b; this.category = c; this.AuthorName = d; } public override string ToString() { return string.Format("{0,-5}{1,-10}{2,-10}{3,-10}", BookId, BookName, Category, AuthorName); } public override bool Equals(object obj) { return this.Equals(obj as LibraryClass); } public bool Equals(LibraryClass p) { // If parameter is null, return false. if (Object.ReferenceEquals(p, null)) { return false; } // Optimization for a common success case. if (Object.ReferenceEquals(this, p)) { return true; } // If run-time types are not exactly the same, return false. if (this.GetType() != p.GetType()) return false; return (bookName == p.BookName); } } Here, also I check the bookname and if there is a book with the same bookname in the list it will return true for contains. But you can change it as you want. Now you can call contains method. LinkedList obj = new LinkedList (); obj.AddFirst(new LibraryClass(10, "srinivas", "fds", "dsffdsf")); obj.AddFirst(new LibraryClass(20, "srini", "ffds", "ddsfsffdsf")); obj.AddFirst(new LibraryClass(30, "sriniffsf", "ffdfsfds", "dfdsdsfsffdsf")); foreach (LibraryClass val in obj) { Console.WriteLine(val); } //Now you create an object with a book name "srini" LibraryClass temp = new LibraryClass(20, "srini", "ffdsfff", "fdsf"); //Now you check there is an object in the list with the same name. if (obj.Contains(temp))//returns true as there is a object with same bookname { } If you find my answer useul, please tick ' Do you like this answer ' checkbox.

srinivas · Answer

no it is not solved please tell me the answer here thank you

Nilanka Dharmadasa · Answer

Hi Srinivas, What do you mean by not loading? Can you upload your code? Then we can locate the error easily. Btw what happened to your contains problem? I cannot access that thread to post a reply. If it is resolved, then no problem. Otherwise let me know. I have the answer.