{"id":19619,"date":"2022-11-07T06:40:30","date_gmt":"2022-11-07T01:10:30","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-do-i-manipulate-an-objects-properties-after-it-has-been-added-to-a-list-in-c\/"},"modified":"2022-11-07T06:40:30","modified_gmt":"2022-11-07T01:10:30","slug":"solved-how-do-i-manipulate-an-objects-properties-after-it-has-been-added-to-a-list-in-c","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-do-i-manipulate-an-objects-properties-after-it-has-been-added-to-a-list-in-c\/","title":{"rendered":"[Solved] How do I manipulate an object&#8217;s properties after it has been added to a List in C#"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-14650510\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"14650510\" data-parentid=\"14650459\" data-score=\"2\" data-position-on-page=\"3\" data-highest-scored=\"0\" data-question-has-accepted-highest-score=\"0\" itemprop=\"suggestedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You can get the first item of the list like so:<\/p>\n<p><code>Person p = pList[0];<\/code> or <code>Person p = pList.First();<\/code><\/p>\n<p>Then you can modify it as you wish:<\/p>\n<p><code>p.firstName = \"Jesse\";<\/code><\/p>\n<p>Also, I would recommend using automatic properties:<\/p>\n<pre><code>class public Person\n{\n    public string firstName { get; set; }\n    public string lastName { get; set; }\n    public string address { get; set; }\n    public string city { get; set; }\n    public string state { get; set; }\n    public string zip { get; set; }\n\n    public Person(string firstName, string lastName)\n    {\n        this.firstName = firstName;\n        this.lastName = lastName;\n    }\n}\n<\/code><\/pre>\n<p>You&#8217;ll get the same result, but the day that you&#8217;ll want to verify the input or change the way that you set items, it will be much simpler:<\/p>\n<pre><code>class public Person\n{\n    private const int ZIP_CODE_LENGTH = 6;\n    public string firstName { get; set; }\n    public string lastName { get; set; }\n    public string address { get; set; }\n    public string city { get; set; }\n    public string state { get; set; }\n    private string zip_ = null;\n    public string zip \n    { \n        get { return zip_; } \n        set\n        {\n            if (value.Length != ZIP_CODE_LENGTH ) throw new Exception(\"Invalid zip code.\");\n            zip_ = value;\n        }\n    }\n\n    public Person(string firstName, string lastName)\n    {\n        this.firstName = firstName;\n        this.lastName = lastName;\n    }\n}\n<\/code><\/pre>\n<p>Quite possibly not the best decision to just crash when you set a property here, but you get the general idea of being able to quickly change how an object is set, without having to call a <code>SetZipCode(...);<\/code> function everywhere. Here is all the magic of encapsulation an OOP.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How do I manipulate an object&#8217;s properties after it has been added to a List in C# <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You can get the first item of the list like so: Person p = pList[0]; or Person p = pList.First(); Then you can modify it as you wish: p.firstName = &#8220;Jesse&#8221;; Also, I would recommend using automatic properties: class public Person { public string firstName { get; set; } public string lastName { get; &#8230; <a title=\"[Solved] How do I manipulate an object&#8217;s properties after it has been added to a List in C#\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-do-i-manipulate-an-objects-properties-after-it-has-been-added-to-a-list-in-c\/\" aria-label=\"More on [Solved] How do I manipulate an object&#8217;s properties after it has been added to a List in C#\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,519,540,430,2770],"class_list":["post-19619","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-class","tag-list","tag-object","tag-properties"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] How do I manipulate an object&#039;s properties after it has been added to a List in C# - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-how-do-i-manipulate-an-objects-properties-after-it-has-been-added-to-a-list-in-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] How do I manipulate an object&#039;s properties after it has been added to a List in C# - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You can get the first item of the list like so: Person p = pList[0]; or Person p = pList.First(); Then you can modify it as you wish: p.firstName = &quot;Jesse&quot;; Also, I would recommend using automatic properties: class public Person { public string firstName { get; set; } public string lastName { get; ... 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