{"id":4413,"date":"2022-07-10T23:46:44","date_gmt":"2022-07-10T23:46:44","guid":{"rendered":"https:\/\/powergi.net\/?p=4413"},"modified":"2025-09-09T20:53:56","modified_gmt":"2025-09-09T20:53:56","slug":"handle-empty-combobox-when-filtering-galleries-in-power-apps","status":"publish","type":"post","link":"https:\/\/powergi.net\/de\/blog\/handle-empty-combobox-when-filtering-galleries-in-power-apps\/","title":{"rendered":"Handle empty combobox when filtering Galleries in Power Apps"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"4413\" class=\"elementor elementor-4413\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-16373a7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"16373a7\" data-element_type=\"section\" data-e-type=\"section\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e7339ab\" data-id=\"e7339ab\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f5d2840 elementor-widget elementor-widget-text-editor\" data-id=\"f5d2840\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>When you are using a combobox to filter a gallery based on the selection, you can check if the selection is blank or not, and depending on that, show only the records that match the combobox selection or show all records. This approach is commonly used in <strong><a href=\"https:\/\/powergi.net\/de\/microsoft-power-platform-consulting-services\/\">Power Apps consulting <\/a><\/strong>to enhance user experience and improve data filtering. In broader digital transformation projects, organizations often complement this with <a href=\"https:\/\/powergi.net\/de\/power-apps-consulting-services\/\"><strong>business applications consulting services<\/strong><\/a> to ensure scalable and efficient app design.<\/p><p>Incorporating Power Apps into your business can significantly enhance operational efficiency and user engagement. As experts in <a href=\"https:\/\/powergi.net\/de\/microsoft-power-platform-consulting-services\/\"><strong>Power Platform Beratungsleistungen<\/strong><\/a>, we specialize in optimizing app functionality, ensuring your digital transformation efforts deliver both agility and scalability. Our approach involves using streamlined techniques, like leveraging comboboxes in Power Apps, for effective data management and seamless user experience.<\/p><div id=\"seology-cta-1\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"7280\" class=\"elementor elementor-7280\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-7e3f164 e-con-full e-flex e-con e-parent\" data-id=\"7e3f164\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"background_background\":\"classic\",\"jet_parallax_layout_list\":[]}'>\n\t\t<div class=\"elementor-element elementor-element-9078c9f e-con-full e-flex e-con e-child\" data-id=\"9078c9f\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b99949 elementor-widget elementor-widget-heading\" data-id=\"7b99949\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Automatisieren Sie Aufgaben, die Sie verlangsamen<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e61db5 elementor-widget elementor-widget-heading\" data-id=\"8e61db5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Geben Sie Ihrem Team mehr Zeit und erm\u00f6glichen Sie ihm, sich auf strategische Aufgaben zu konzentrieren, dank digitaler und robotergest\u00fctzter Automatisierung.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a578907 e-flex e-con-boxed e-con e-child\" data-id=\"a578907\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8c827b elementor-view-stacked elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"e8c827b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"#ctc_chat\">\n\t\t\t<i aria-hidden=\"true\" class=\"fab fa-whatsapp\"><\/i>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d834237 elementor-view-stacked elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"d834237\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/powergi.net\/de\/contact\/\">\n\t\t\t<i aria-hidden=\"true\" class=\"far fa-envelope\"><\/i>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div><p><strong>For below scenario, we want to filter the Category of each record based on the selection in the combobox.<br><\/strong><img decoding=\"async\" src=\"https:\/\/powergi.net\/wp-content\/uploads\/2026\/06\/migrated-img-4413-6a4450fa75079.png\" alt=\"\"><strong><br><\/strong><\/p><p><strong>Below could be used for that purpose:<\/strong><\/p><p><img decoding=\"async\" style=\"font-family: var( --e-global-typography-text-font-family ), Poppins; font-weight: var( --e-global-typography-text-font-weight ); background-color: var(--ast-global-color-5); font-size: 1rem;\" src=\"https:\/\/powergi.net\/wp-content\/uploads\/2026\/06\/migrated-img-4413-6a4450fa85ad3.png\" alt=\"\"><\/p><p><strong style=\"font-style: inherit; background-color: var(--ast-global-color-5);\">BUT there is a <span style=\"text-decoration-line: underline;\"><em>cleaner and simpler<\/em><\/span> way to achieve this in Power Apps, all in a single line of code:<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05f107e elementor-widget elementor-widget-code-highlight\" data-id=\"05f107e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"prismjs-tomorrow copy-to-clipboard word-wrap\">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript\">\n\t\t\t\t<code readonly class=\"language-javascript\">\n\t\t\t\t\t<xmp>Filter('App Usage', category=cmbCategory.Selected.Value || IsEmpty(cmbCategory.Selected.Value) || IsBlank(cmbCategory.Selected.Value)) <\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3392822 elementor-widget elementor-widget-text-editor\" data-id=\"3392822\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" src=\"https:\/\/powergi.net\/wp-content\/uploads\/2026\/06\/migrated-img-4413-6a4450fa94d6a.png\" alt=\"\"><\/p><div id=\"seology-cta-2\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"7531\" class=\"elementor elementor-7531\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-7e3f164 e-con-full e-flex e-con e-parent\" data-id=\"7e3f164\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"background_background\":\"classic\",\"jet_parallax_layout_list\":[]}'>\n\t\t<div class=\"elementor-element elementor-element-9078c9f e-con-full e-flex e-con e-child\" data-id=\"9078c9f\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b99949 elementor-widget elementor-widget-heading\" data-id=\"7b99949\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Sind Sie bereit, die Freude an der Automatisierung zu entdecken?<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e61db5 elementor-widget elementor-widget-heading\" data-id=\"8e61db5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Ob Sie ein Projekt im Sinn haben oder einfach nur wissen m\u00f6chten, wie wir Ihnen helfen k\u00f6nnen, wir freuen uns auf ein Gespr\u00e4ch<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a578907 e-flex e-con-boxed e-con e-child\" data-id=\"a578907\" data-element_type=\"container\" data-e-type=\"container\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8c827b elementor-view-stacked elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"e8c827b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"#ctc_chat\">\n\t\t\t<i aria-hidden=\"true\" class=\"fab fa-whatsapp\"><\/i>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d834237 elementor-view-stacked elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"d834237\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/powergi.net\/de\/contact\/\">\n\t\t\t<i aria-hidden=\"true\" class=\"far fa-envelope\"><\/i>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div>\n<p><strong>All done! Use this tip to keep your app code clean and easy!<\/strong><\/p><p><strong><br><\/strong><img decoding=\"async\" src=\"https:\/\/powergi.net\/wp-content\/uploads\/2026\/06\/migrated-img-4413-6a4450fac0807.png\" alt=\"\"><strong><br><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f14ce2b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f14ce2b\" data-element_type=\"section\" data-e-type=\"section\" data-settings='{\"jet_parallax_layout_list\":[]}'>\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d4f29fc\" data-id=\"d4f29fc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>When you are using a combobox to filter a gallery based on the selection, you can check if the selection is blank or not, and depending on that, show only the records that match the combobox selection or show all records. This approach is commonly used in Power Apps consulting to enhance user experience and [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4421,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"glossary_letter":"","footnotes":""},"categories":[81],"tags":[],"class_list":["post-4413","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-power-apps-cat"],"glossary_letter":null,"rank_math_title":null,"rank_math_description":null,"rank_math_focus_keyword":null,"_links":{"self":[{"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/posts\/4413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/comments?post=4413"}],"version-history":[{"count":0,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/posts\/4413\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/media\/4421"}],"wp:attachment":[{"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/media?parent=4413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/categories?post=4413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/powergi.net\/de\/wp-json\/wp\/v2\/tags?post=4413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}