{"id":13848,"date":"2022-10-05T14:36:00","date_gmt":"2022-10-05T09:06:00","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-javafx-tableview-not-showing-data-from-database\/"},"modified":"2022-10-05T14:36:00","modified_gmt":"2022-10-05T09:06:00","slug":"solved-javafx-tableview-not-showing-data-from-database","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-javafx-tableview-not-showing-data-from-database\/","title":{"rendered":"[Solved] javafx Tableview not showing data from database"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-38400312\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"38400312\" data-parentid=\"38398050\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" 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>In the <code>getRoom.rmview<\/code> method you fill assign the fields of the <code>rmview<\/code> instance again and again, but you never modify the <code>roomlist<\/code> of <code>rmview<\/code> is never modified; it remains empty. Since you use <code>roomlist<\/code> in the <code>TableView<\/code>, there is no data to show.<\/p>\n<p>You should instead add a new element for every row the database query returns:<\/p>\n<pre><code>\/\/ remove data previously in the list\nrmList.roomlist.clear();\n\nwhile (rs.next()){\n    rmList.roomlist.add(new ListRoom(rs.getString(1),\n                                     rs.getString(2),\n                                     rs.getString(3),\n                                     rs.getString(4),\n                                     rs.getString(5)));\n}\n<\/code><\/pre>\n<hr>\n<p>Furthermore I recommend adhering to <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/www.oracle.com\/technetwork\/java\/javase\/documentation\/codeconventions-135099.html\">the naming conventions<\/a>. Especially the part about abreviations since this makes your code hard to read for others. Furthermore <code>object<\/code> is a bad choice as name for a type parameter. It leads to confusion and usually single uppercase letters are used for type parameters.<\/p>\n<p>Also the purpose of the <code>rmlist<\/code> class is unclear. It contains the same fields as <code>ListRoom<\/code>, but also contains a list where you want the data to actually be stored. Why do you need those fields? Do you need <code>rmlist<\/code> at all or could it just be replaced with <code>ObservableList&lt;ListRoom&gt;<\/code>? <\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved javafx Tableview not showing data from database <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] In the getRoom.rmview method you fill assign the fields of the rmview instance again and again, but you never modify the roomlist of rmview is never modified; it remains empty. Since you use roomlist in the TableView, there is no data to show. You should instead add a new element for every row the &#8230; <a title=\"[Solved] javafx Tableview not showing data from database\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-javafx-tableview-not-showing-data-from-database\/\" aria-label=\"More on [Solved] javafx Tableview not showing data from database\">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":[323,1489,340,1458],"class_list":["post-13848","post","type-post","status-publish","format-standard","hentry","category-solved","tag-java","tag-javafx","tag-mysql","tag-tableview"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] javafx Tableview not showing data from database - 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-javafx-tableview-not-showing-data-from-database\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] javafx Tableview not showing data from database - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] In the getRoom.rmview method you fill assign the fields of the rmview instance again and again, but you never modify the roomlist of rmview is never modified; it remains empty. 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