{"id":6185,"date":"2022-09-02T00:19:57","date_gmt":"2022-09-01T18:49:57","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/"},"modified":"2022-09-02T00:19:57","modified_gmt":"2022-09-01T18:49:57","slug":"solved-how-can-i-use-combobox-with-wpf-mvvm","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/","title":{"rendered":"[Solved] How can I use combobox with wpf mvvm"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-60785808\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"60785808\" data-parentid=\"60781745\" 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>Your code in <code>LocationFilter<\/code> make no sense at all.<\/p>\n<pre><code>ParticularEntries.Select(pg =&gt; pg.Region.Location == _selectedLocation);\n<\/code><\/pre>\n<p>It returns an <code>IEnumerable&lt;bool&gt;<\/code> but it is never assigned.<\/p>\n<p>If you want to filter, you have to use <code>Where<\/code>.<\/p>\n<p>But even if you change your code to<\/p>\n<pre><code>ParticularEntries = ParticularEntries.Where(pg =&gt; pg.Region.Location == _selectedLocation);\n<\/code><\/pre>\n<p>you will see a change, but you will face the next problem next time when you select a different location.<\/p>\n<h1>Solution<\/h1>\n<p>You need a collection with all unfiltered items stored inside a private field and use that for filtering.<\/p>\n<pre><code>private IEnumerable&lt;EntryReportParticular&gt; _allEntries;\n\nprivate IEnumerable&lt;EntryReportParticular&gt; _particularEntries;\npublic IEnumerable&lt;EntryReportParticular&gt; ParticularEntries\n{\n    get { return _particularEntries; }\n    set { Set(ref _particularEntries, value); }\n}\n\nprivate void LocationFilter()\n{\n   ParticularEntries = _allEntries\n       .Where(pg =&gt; pg.Region.Location == _selectedLocation)\n       .ToList();\n}\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">0<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How can I use combobox with wpf mvvm <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Your code in LocationFilter make no sense at all. ParticularEntries.Select(pg =&gt; pg.Region.Location == _selectedLocation); It returns an IEnumerable&lt;bool&gt; but it is never assigned. If you want to filter, you have to use Where. But even if you change your code to ParticularEntries = ParticularEntries.Where(pg =&gt; pg.Region.Location == _selectedLocation); you will see a change, but &#8230; <a title=\"[Solved] How can I use combobox with wpf mvvm\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/\" aria-label=\"More on [Solved] How can I use combobox with wpf mvvm\">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":[324,1678,446,1677,874],"class_list":["post-6185","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-combobox","tag-command","tag-mvvm","tag-wpf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] How can I use combobox with wpf mvvm - 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-can-i-use-combobox-with-wpf-mvvm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] How can I use combobox with wpf mvvm - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Your code in LocationFilter make no sense at all. ParticularEntries.Select(pg =&gt; pg.Region.Location == _selectedLocation); It returns an IEnumerable&lt;bool&gt; but it is never assigned. If you want to filter, you have to use Where. But even if you change your code to ParticularEntries = ParticularEntries.Where(pg =&gt; pg.Region.Location == _selectedLocation); you will see a change, but ... 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ParticularEntries.Select(pg =&gt; pg.Region.Location == _selectedLocation); It returns an IEnumerable&lt;bool&gt; but it is never assigned. If you want to filter, you have to use Where. But even if you change your code to ParticularEntries = ParticularEntries.Where(pg =&gt; pg.Region.Location == _selectedLocation); you will see a change, but ... Read more","og_url":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/","og_site_name":"JassWeb","article_published_time":"2022-09-01T18:49:57+00:00","author":"Kirat","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Kirat","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/#article","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/"},"author":{"name":"Kirat","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31"},"headline":"[Solved] How can I use combobox with wpf mvvm","datePublished":"2022-09-01T18:49:57+00:00","mainEntityOfPage":{"@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/"},"wordCount":92,"publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"keywords":["c++","combobox","command","mvvm","wpf"],"articleSection":["Solved"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/","url":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/","name":"[Solved] How can I use combobox with wpf mvvm - JassWeb","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/#website"},"datePublished":"2022-09-01T18:49:57+00:00","breadcrumb":{"@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/jassweb.com\/solved\/solved-how-can-i-use-combobox-with-wpf-mvvm\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jassweb.com\/solved\/"},{"@type":"ListItem","position":2,"name":"[Solved] How can I use combobox with wpf mvvm"}]},{"@type":"WebSite","@id":"https:\/\/jassweb.com\/solved\/#website","url":"https:\/\/jassweb.com\/solved\/","name":"JassWeb","description":"Build High-quality Websites","publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jassweb.com\/solved\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jassweb.com\/solved\/#organization","name":"Jass Web","url":"https:\/\/jassweb.com\/solved\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/","url":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","contentUrl":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","width":693,"height":132,"caption":"Jass Web"},"image":{"@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31","name":"Kirat","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/","url":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1776403586","contentUrl":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1776403586","caption":"Kirat"},"sameAs":["http:\/\/jassweb.com"],"url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/6185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/comments?post=6185"}],"version-history":[{"count":0,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/6185\/revisions"}],"wp:attachment":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/media?parent=6185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/categories?post=6185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/tags?post=6185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}