The component is not complete yet as the cdk-virtual-scroll-viewport needs to know how big each node will be as well as the min/max buffer sizes. Oct 20, 2020 · I am getting more than 30000 records from backend to list in frontend, So using cdk-virtual-scroll I can able to achieve this. May 4, 2019 · Your code is wrong: the size of your items in css is 50px, but you are binding 1 to the itemSize of the cdk-virtual-scroll-viewport element – Jota. Component infrastructure and Material Design components for Angular - angular/components Mar 27, 2019 · I figured this out. But the problem did not exist if I use angular + angular material only. I would like the user to be able to pick an option using his May 11, 2021 · Virtual scroll relies on an calculatable element height to calculate the offsets. Allowing access to your localhost resources can lead to security issues such as unwanted request access or data leaks through your localhost. ts file. * Sets the offset from the start of the viewport to either the start or end of the rendered data Virtual scroll for for Angular Cdk Table. Stackblitz example In the above example, first dropdown is working properly. Nov 27, 2018 · Step 2 is to add the <cdk-virtual-scroll-viewport> element around the markup of your table. I would like to load more results (call the next page) every time I reach Jul 25, 2021 · Angular cdk-virtual-scroll-viewport: does not render correct number of items 7 Maintain scroll position with CDK autosize virtual scroll strategy Jun 13, 2023 · Infinite scroll of Rick & Morty characters (Demo application) I prepared an example application where you can follow along and build a virtual scrolling list of items from scratch or just check it Feb 23, 2018 · Make sure that you only rendering list items in the viewport. We need to add the tag, <cdk-virtual-scroll-viewport></cdk-virtual-scroll-viewport> to work with virtual scroll module. But I would like to add a section at the very top of the list. 2, last published: 3 years ago. May 11, 2022 · I'm using CDK VIRTUAL SCROLL in a table that loads a service (API) that returns me a list, with this list I can remove or return their columns respectively as well as Sep 8, 2023 · Angular’s Virtual Scroll is a powerful feature provided by the @angular/cdk library that enables efficient rendering of large lists by displaying only the items visible in the viewport. Do you know if there is any way to set the dynamic height of scroll viewport? Everything works fine with standard style property but I can't set the value using ngStyle. Dec 9, 2019 · I am Using cdk-virtual-scroll-viewport to render a List but It renders all the elements like a classic ngFor <cdk-virtual-scroll-viewport itemSize="16"> <;div *cdkVirtualFor="let i o Oct 23, 2018 · Angular CDK 7. The tag needs to be added to . Dec 13, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Apr 14, 2020 · I am using cdk-virtual-scroll-viewport to dynamically render items a small set at a time as the user scrolls. Feb 7, 2023 · The viewport described above is done by the <cdk-virtual-scroll-viewport> component. And so when i searching for infinity scrolling support, most tutorial provided with the below code. cdk-virtual-scroll-content-wrapper { min-width: unset !important; } mat-option { width: 100px !important; background-color: red; } Now mat option is taking off half of the container and on the right side scroll is working as expected. We just tell cdk-virtual-scroll-viewport size of our item and that’s it. The simplest way to provide it is to use the itemSize directive on the viewport (e. Nov 17, 2020 · How to use cdk-virtual-scroll-viewport for table tbody. If 'cdk-virtual-scroll-viewport' is an Angular component, then verify that it is part of this module. px]="viewPortHeight"> </cdk-virtual-scroll-viewport> Note that: my viewport component was put within an <ng-template>; itemSize and viewPortHeight are variables defined in the context. push(newItem); this. For this to properly render, we add an [itemSize] value to the selector itself and specify a restricted height. If you want to show five items at once, the container size would be 5 * 48 = 240: Jan 6, 2019 · The component I am currently working on uses Angular's virtual scrolling and should update the data source when a certain index of the virtual scroll viewport is reached. cdk-virtual-scroll-orientation Jun 19, 2020 · Build infinite virtual scrolling lists using the Angular 7 CDK. Instead of using *ngFor we’re going to use *cdkVirtualFor. With virtual scroll, I have to set the [itemSize] property, but for me it is not a static value: // Access the CDK Virtual Scroll Viewport @ViewChild Nov 30, 2018 · The VirtualScrollDemoComponent view will comprise of cdk-virtual-scroll-viewport, which takes care of loading only the data which fits the screen. height. I need the inital position of the cdk-virtual-scroll-viewport to be other than the first element / item of the list. component. but Why when you scrolling over mat-options it is lagging? Feb 9, 2021 · So since cdk virtualscroll doesn't support multi column, I ended up using ngx-virtual-scroller, which does support multi-columns. Let's start by reviewing a few important concepts with virtual scroll. When a user starts typing, a small window pops up with options to select from. If 'cdk-virtual-scroll-viewport' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule. Originally, I was adding new days by grabbing the current value like this. Instead, there is a horizontal scroll bar. Feb 28, 2019 · I'm using virtual scroll with Angular 7. The viewport is set to 480px in height. May 8, 2023 · Actually, if you've noticed, the standard cdk-virtual-scroll-viewport component, as already mentioned, works with fixed-size items, the experimental CDK – variable-size items. You are setting 500px as the size for each item, which is the size of the full cdk-virtual-scroll-viewport container. That's why it was not working: table { width: 100%; } cdk-virtual-scroll-viewport { height: 400px; } works now with the height set correctly. I would like to bind a keyboard event like KeyPress to detect the enter key and mimi Feb 11, 2021 · Angular Virtual Scrolling is one of the game-changer features to deal with extensive lists of items. Jul 2, 2021 · It might be not clear but working. Each item is 48px in height. 4. example-item { height: 50px; } Virtual Scrollingを使う場合は、itemSizeとheightを同じにする必要があります。 Dec 17, 2018 · I'm trying to integrate Angular material's virtual scrolling with drag and drop, but for some reason when i'm trying to implement this it reverts the items and when i'm trying to drag and drop an e Jul 3, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Dec 1, 2022 · And after that, the infinite scroll (with virtualization) stopped working. What I observed is that the cdk-virtual-scroll-viewport does not add a scroll anymore if the scrollWindow property is set to false and the ngx-infinite-scroll needs that property to be set to false. These two modes are separate VirtualScrollStrategy -ies – FixedSize and Autosize , respectively. This is my Component's template: <cdk-virtual-scroll-viewport itemSize="50" class="example Feb 23, 2018 · But I found the root cause, it was because the cdk viewport wrapper doesn't work properly. Jul 2, 2015 · Basic virtual scroll. I have a large list of items that can be scrolled with <cdk-virtual-scroll-viewport autosize> provided by @angular/cdk-experimental (the items have dynamic heights, thus I'm using this scroll strategy instead of the FixedSizeVirtualScrollStrategy). Apr 19, 2022 · What I tried to do is to put all these 3 sections into the virtual scroll viewport in order to make the whole page scrollable and not only the list itself. It should have an itemSize input property defined as the pixel height of each item. So setting itemSize="x" which, according to the documentation refers to The size of the items in the list (in pixels) , is unpractical. The viewport only displays 5 items, regardless of the height given to the cdk-virtual-scroll-viewport element. 3 days ago · 「cdk-virtual-scroll-viewport」で仮想スクロールを定義します。 . Its [itemSize] input must be set to give the item height in pixels (unless you use a custom scroll strategy). itemSize represents the height of item in pixels which we are rendering in our case this should be exact height of our card div which is 141px. 此外 CdkVirtualScrollViewport 也能配置更为精确的大小模拟: < cdk-virtual-scroll-viewport itemSize = "50" minBufferPx = "100" maxBufferPx = "250" > Jun 22, 2019 · It's the transformY indeed, that gets updated whenever elements of the list are replaced (remove+append). (this works, but i still get the initial 30% then after re initing the full height is taken). The actual project I'm working on is based on Angular 14. You switched accounts on another tab or window. 0. The issue I’m having is the cdk-virtual-scroll-viewport cannot be nested in any element except for the ion-content element. In this Apr 18, 2019 · This tutorial on Firebase says:. And there is the problem. Dec 13, 2019 · In the Angular CDK virtual Scrolling I'm using a list and adding items to the list from a button and it works. May 13, 2019 · In my Angular app, I'm using the Virtual Scroll from the Angular cdk. When I refresh the page, the selected item comes from the server and is again highlighted. I think you tried to express it as a number of item, which is not correct. However it is also possible to provide a custom strategy by creating a class that implements the VirtualScrollStrategy interface and providing it as the VIRTUAL_SCROLL_STRATEGY on the component containing your Jun 5, 2018 · cdk-virtual-scroll-viewport is a container for the *cdkVirtualFor directive, if we look into this directive (CdkVirtualForOf) we can see that It implements CollectionViewer ( code ) It accepts (works with) DataSource instance ( code ) I´m working in a project where i need to display more 1000 records and was think in use virtual scroll from the angular material CDK but for some reason i get this error: Error: CdkVirtualScrollVie Dec 27, 2020 · I got a fix which considers the number of elements in the list to set the container height. Jul 22, 2022 · I'm working on Angular cdk virtual viewport. Feb 24, 2022 · 'cdk-virtual-scroll-viewport' is not a known element: 1. let items = this. Calling this after the view was initilaized made it take up the entire space it could. Feb 5, 2020 · I'm working on Angular table with usage of cdk Virtual Scroll. Feb 15, 2024 · This one was really tough to debug, but basically the problem was that when an mat-option is outside the rendering window of the virtual scroll the option will not get selected, so I wrote a special slice method, that will always place the selected bank on the top of the array, so that will get surely selected and that fixed your issue. However, to achieve this implementation, I found a demo project in Angular 11. g. html. The scrolling is pretty smooth but as you can see searching and navigating back and forth is a bit slow as there's a reloading of the DOM. A problem arose in an area that was not expected at all, and it was difficult to solve it. io Jan 1, 2019 · If 'cdk-virtual-scroll-viewport' is an Angular component, then verify that it is part of this module. Bring StackBlitz to Work How Frontend and Design System Teams Collaborate with StackBlitz Dec 18, 2020 · It is a simple task in Angular to make a Material CDK Scrolling list automatically scroll to a certain point. We need to provide the attribute [itemSize]=”heightOfRowInPx” that tells the scrolling component how high each row is. And in my case, I found another CSS (outsite my component but makes an impact for my current component) that set cdk-virtual-scroll-content-wrapper height to 100%,::ng-deep . cdk-virtual-scroll-orientation-vertical . I have set itemSize to the height of one item and the viewport's width to 100%. items$. Demonstrate Virtual Scrolling for @angular/cdk. At the moment, CDK Virtual Scroller only supports fixed sized elements, but dynamic sized elements are planned for the future. 2) Use tvsItemSize directive on <cdk-virtual-scroll-viewport> Jul 14, 2022 · . Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jan 13, 2022 · Recently I replaced all the ion-virtual-scroll components in my ionic project to cdk-virtual-scroll from and Angular cdk because ion-virtual-scroll is gonna be deprecated in ionic7. virtual scroll uses itemSize to calculate the number of items that fit into your viewport. In the component, I load an array of 100 strings. But using this, I was not able to set the width of the list to 100%. The scrolling does work as expected, but some items of the list get detached to early, so the header section sometimes bounces back in. Oct 4, 2022 · I’m getting up to speed with ionic/angular for a project and after noting the ion-virtual-scroll is deprecated, I’m attempting to reproduce my very small feature using cdk-virtual-scroll-viewport. Nov 4, 2018 · I am trying to implement an infinite loop scroll for a list of items using the CDK virtual-scroll I reached a point where I gave up. Let’s start by reviewing a few important concepts with virtual scroll. But beware of the version of cdk and cdk-experimental when installing. It calculates the amount of height for the container until it reaches the final height value. ScrollingModuleをimportして下さい。 <cdk-virtual-scroll-viewport>内の要素にcdkVirtualForを指定して下さい。 <cdk-virtual-scroll-viewport>のitemSizeとスクロール上で表示する各行のheightは同じ値にする。(itemSizeで表示部分の高さ計算が行われるため) See full list on v7. In particular, your code can easily be changed to use virtual scrolling. Oct 2, 2018 · A great answer but be careful if, like me, you have a custom component rendering nodes: <cdk-virtual-scroll-viewport> <my-node *cdkVirtualFor="let node of dataSource" [node]="node"><my-node> </cdk-virtual-scroll-viewport>results in cdk-virtual-scroll-content-wrapper having flex-direction: row; giving horizontal scrolling beyond the viewport. However it is also possible to provide a custom strategy by creating a class that implements the VirtualScrollStrategy interface and providing it as the VIRTUAL_SCROLL_STRATEGY on the component containing your Nov 14, 2023 · Hi in my case i have used an angular cdk virtual scroll the scroll element should be in parent so i achieved it using (cdkVirtualScrollingElement) below code: Note: you need to install and configure cdk-virtual-scroll-viewport (ScrollingModule) and mat-table (MatTableModule) before. So it was necessary to specify a with to every column. For example: Initially I have 100 items in the scroll. Setting CSS for cdk-virtual-scroll-viewport or cdk-virtual-scroll-viewport > div doesn't work either: Mar 30, 2021 · Yes, that is the limitation for virtual scroll - it works with rows. html file where we want the data to be displayed. I create a CdkVirtualScrollViewport and I would add a listener to every scroll event. This is useful if you like to include other containers into the scroll container of your virtual list. Mar 13, 2021 · The virtual scroll viewport needs a size in order to know, how big the scroll container must be. Aug 11, 2023 · You're using the <ng-template> element. I have created normal table enclosed with cdk-tag <cdk-vi May 3, 2020 · Here, first of all you can check the current status of the app without virtual scrolling: PokeDex - Webapp. Feb 6, 2019 · For this I use Angular Material Virtual Scroll. Reload to refresh your session. TableVirtualScroll only make them work together properly . Here is an updated solution. This can be done by specifying the [itemSize] property of <cdk-virtual-scroll-viewport> and its height. Jan 24, 2022 · I’m working with Ionic 6 with Angular and Capacito3 As I scroll down the list, there are shots, where the elements suddenly slide upwards. Nov 4, 2018 · since html parse tr then td, using <cdk-virtual-scroll-viewport>breaks the view is there any cdkVirtualScrollViewport as directive for <tbody>? <tbody>; <cdk-virtual-scroll-vie Custom Scroll Elements . basically I want to be able to show the absol Feb 26, 2019 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jan 22, 2021 · I am facing this problem too when using ionic angular. Aug 12, 2019 · According to the CDK documentation the itemSize property is expressed in pixels. Dec 21, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand. io to help you apply any of the features of their package successfully. With <ng-template>, you can define template content that is only being rendered by Angular when you, whether directly or indirectly, specifically instruct it to do so, allowing you to have full control over how and when the content is displayed. I don't really have a neat solution. . Aug 13, 2020 · It can be replaced by a Virtual Scroll loop: The cdk-virtual-scroll-viewport component specifies the itemSize (the height of our tree nodes in our case), The structural directive *cdkVirtualFor loops over the tree dataSource. angular. The <cdk-virtual-scroll-viewport> displays large lists of elements efficiently by only providing the items that fit on-screen. Feb 4, 2022 · We had a similar issue a while back and it was solved by getting the correct CdkVirtualScrollViewport instance with ViewChild and then using checkViewportSize()-method after the viewport size was altered/displated with *ngIf. module. between the items you should add this "heading"-items as list items (also with a static height ) to get rid of overflow space in the bottom of the virtual-scroll viewport. Now I found the scrollToIndex and scrollTo methods, but I only can get them to work when using it in the ngAfterViewChecked, which feels off. Replace *ngFor with *cdkVirtualFor. When it was initialized, it was less than what it needed to be. ts Oct 21, 2018 · Angular CDK Virtual Scroll Basics. Jul 12, 2019 · The scrolling list is one of the most common UI patterns today, whether it's browsing an infinitely scrolling feed on your favorite social media site, or navigating an enterprise dashboard. There is a hugh differents between <cdk-virtual-scroll-viewport [itemSize]="45" and <cdk-virtual-scroll-viewport [itemSize]="20" (a table with 2k rows). attribute could be set like this <cdk-virtual-scroll-viewport itemSize="0" > – Oleg Bondarenko. If you want to render headings e. Feb 19, 2019 · I would like to use virtual scroll on my Angular application. Furthermore, I can use autosize (remove itemSize property) in cdk-virtual-scroll-viewport. In your example the height of one <option> item is 48px. We can then tell it to scroll to an item, do that smoothly or subscribe to current item index when user scrolls it. Image Preview Of the Website Here. Toledo. Oct 9, 2023 · I have an implementation of mat-list-option to be used inside cdk-virtual-scroll-viewport. Loading hundreds of elements at a time "," styles: ["," `"," . Dec 11, 2018 · I am using cdk-virtual-scroll-viewport + cdkVirtualFor in my component and it seems to work fine. In this article, we will discuss 10 best practices for using Angular CDK Virtual Scroll. <cdk-virtual-scroll-viewport itemSize="1" [style. cdk-virtual-scroll-viewport is not working properly when I use more than two cdk-virtual-scroll-viewport in the same page. This optimizes performance by pre-calculating the size of each item. 2. I have it loading new data as I scroll down. You signed in with another tab or window. Nov 9, 2022 · <cdk-virtual-scroll-viewport>のitemSize属性と、cdkVirtualForのheightは同じにします。 virtual-scroll. It works great straight out of the box when your items all have the same size. Jan 14, 2019 · I would like to use cdk-virtual-scroll-viewport in a TimeLine view with items of different heights. Start using ng-cdk-table-virtual-scroll in your project by running `npm i ng-cdk-table-virtual-scroll`. In this guide, we will discuss Angular Virtual Scrolling focusing on the Angular CDK Virtual Scroll package and its core component, cdk-virtual-scroll-viewport. The items in my list are the result of a remote paged search. I'm having another button to remove item from the list but the UI is not refreshed wit . It is also possible to define a scroll container which is not part of the rx-virtual-scroll-viewport itself. When an item is selected, the selected item is highlighted and then is saved on the server. value; items. x; 実装時の注意点. Oct 5, 2021 · I have found a number of tutorials for using the cdk-virtual-scroll-viewport, but there is one thing missing from every single tutorial I have found so far: how do I tell the viewport how many item cdk-virtual-scroll-viewport is not working properly when I use more than two cdk-virtual-scroll-viewport in the same page. – sfelli Commented Jan 18, 2023 at 12:49 For more details, check out the CDK Virtual Scrolling docs. I cannot make it happen, how can I achieve this the CDK virtual- Oct 5, 2022 · For the first issue, setting the itemSize to 1 seems to fix it. Feb 3, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Angular CDK has virtual scroll toolkit starting from version 7. <mat-form-field> <mat- Feb 10, 2022 · I was working with angular material project. You signed out in another tab or window. I am using CdkVirtualScrollViewport library from angular to plot the table Aug 29, 2023 · Take care of cdk-virtual-scroll-viewport component element because it takes its place in DOM generation, because of that in this example we provided class to viewport and item. How it looks with virtual scroll. Particularly, we should set itemSize <cdk-virtual-scroll-viewport [itemSize]="itemSize"> If you want 2 columns per row then itemSize = half value of size (in pixels) For the responsiveness, we can use cdk BreakpointObserver, and then we can set itemSize dynamically. Dec 11, 2023 · To solve your problems, try this approach without unnecessary delays and handle scrolling more efficiently. 8 cdk virtualscroll with mat-grid-list. Jul 26, 2022 · call ngOnInit on the ViewChild for the cdk-virtual-scroll-viewport. Jan 26, 2024 · ng new virtual-scroll-demo cd virtual-scroll-demo Integrating Angular CDK Angular’s Component Dev Kit (CDK) provides the tools for building the virtual scrolling feature. Instead of using the *ngFor directive to iterate over the items, you must use the dedicated *cdkVirtualFor directive that supports the exact same API. Oct 27, 2019 · Saved searches Use saved searches to filter your results more quickly Nov 3, 2020 · Maintain scroll position with CDK autosize virtual scroll strategy. <cdk-virtual-scroll-viewport itemSize="50">). Tried to meddle with extending the FixedSizeVirtualScrollStrategy and move back a provided sticky header whenever onRenderedOffsetChanged was triggered but it's ugly and still too far from when transformY is applied, resulting in random blips unsuited Aug 13, 2019 · Is it possible to use Angular Material's <cdk-virtual-scroll-viewport> when you have multiple items in one line (display: inline-block; vertical-align: top;)? For me the CDK renders only 3-2 items per line, with lots of space left on the right. However in the unit test of that component the items don't get rendered. Another thing to note is Oct 13, 2022 · I have an angular material table that has millions of records, I have added pagination which has options like 10, 25, 50, 100, 500, and 1000, and the max length of the records, which I select 1000 Feb 23, 2020 · I am able to set up my virtual scroll view port using Angular Material. example-viewport { height: 200px; width: 200px; border: 1px solid black; } . In my case, the component trying to use <cdk-virtual-scroll-viewport> was missing in the declarations part of the app. I was using mat-sidenav-container of mat-sidenav to display content. Do you know if there is a solution? My Oct 21, 2018 · Angular CDK Virtual Scroll Basics. cdk-virtual-scroll-viewport has a required input called [itemSize]. CdkVirtualForOf 提供了与 NgForOf 相类似的 API,几乎没有任何额外学习成本。. Latest version: 1. You should try it like that (with the itemSize value matching your inline styled height of 100px per item): use min-height of 100% for the viewport and verify; make sure, the height set on the viewport with 'itemSize' matches the height of the item in css; if you are using an Observable, make sure to resolve it with *ngIf and the async pipe. Sep 6, 2023 · I have a mat dialog component contain a list of available language in my app dosplayed as list, and I'm trying to create a scrollable element instead, the dialog is opened from a main navbar with an Dec 6, 2019 · I have a cdk-virtual-scroll-viewport element and inside this element I have a relatively positioned div with an absolute positioned element inside it. First, you declare the cdk-virtual-scroll-viewport component to provide a context for virtual scrolling. 13 cdk Virtual Scrolling with HTML table The simplest way to provide it is to use the itemSize directive on the viewport (e. Using event binding I can attach actions to click an dblclick events. <cdk-virtual-scroll-viewport #scrollViewport [itemSize]="itemSize" [style. I mean I would like to be notified on scrolling inside that viewport. Apr 8, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Oct 12, 2021 · So I understand that so if the my visible viewport height is 250px, then the virtual scroll viewport will be rendered between 350px and 500px. To control this, set the input itemSize of cdk-virtual-scroll-viewport to whatever height you expect your items to have (in px). this should allow you to scroll faster but it will also take more cpu to run. a big problem of the previous code was that it wasn't able to dynamical calculate the widths of columns. *cdkVirtualFor is similar to *ngFor directive to which we provide the data to be displayed. This tutorial will introduce you to the Angular Component Development Kit, some best practices for building using the CDK, and guide you through building a basic and a more advanced example. Mar 27, 2019 · I was neglecting to set the cdk-virtual-scroll-viewport element height in the css file. I made a sample app you can reduce the itemSize to a lower number which should trick the scroller into rendering more rows above/below the current viewable area. next(items) Jul 25, 2022 · I also tried to use "cdkVirtualScrollingElement" outside of my component (which has the "cdk-virtual-scroll-viewport") to set the <main> as the scroll-container (same as the result of scrollWindow) but the scroll-container remains the "cdk-virtual-scroll-viewport", if I use the "scrollWindow" I get the same issue as OP Jul 17, 2022 · Virtual Scroll Viewport Now we'll wrap the table-row data element with the <cdk-virtual-scroll-viewport> selector. cdk-virtual-scroll-content-wrapper { position: absolute; top: 0; left: 0; contain: content; } But if I change the CSS of the respective HTML element directly in the developer tools of the browser, the scroll bar is displayed. Is there any way to automatically adjust height of scroll viewport? So in my case When viewport size increases there is a blank space displays at the bottom of viewport, this is the similar example for the reference May 24, 2024 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand Mar 20, 2019 · I wonder if you solved the problem. The mat-grid-list I also had to let go because of this, but, creating your own tiles isn't that much work when using flexbox. I had a situation where the virtual scroll's viewport was in a flex-box, so it needed to respond to what the flex's layout would be. Also, for the issue of the element not scrolling to the top, use the scrolledIndexChange event to track when the viewport has finished scrolling and then scroll the element into view. The itemSize represents what height the feature should expect of each row Dec 23, 2022 · Angular CDK Virtual Scroll is a powerful tool for building large lists and tabular data. Jul 15, 2023 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jun 13, 2021 · Since there will possibly be thousands of items in the list I want to increase the performance using CDK virtual Scroll. Bug, feature request, or proposal: Bug What is the expected behavior? cdk-virtual-scroll-viewport inside a mat-select or mat-autocomplete should align with the overlay panel. The viewport is split into two and the scroll does not work as expected. Nov 20, 2018 · The Angular Material team has developed some good documentation at https://material. It provides a way to optimize the performance of an application by only rendering the items that are visible in the viewport. If you need to have items displayed next to each other, you need to split those in the component into groups and have the virtual scroll work on groups. Dec 13, 2022 · In my angular application, I want to keep my table header at fixed position and display the scrollbar to the body part only. material. What I cannot figure out, however, is how to make two or more lists automatically scroll. Dec 7, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jul 27, 2019 · For this first we need to wrap our ngFor with <cdk-virtual-scroll-viewport> and then replace *ngForwith . cdk-virtual-scroll-content-wrapper {"," display: flex;"," flex-direction: column;"," }",""," . cdk-virtual-scroll-content-wrapper { height: 100%; } Jan 18, 2023 · To fix this error, you will need to set the "itemSize" property on the "cdk-virtual-scroll-viewport" component in your code to the appropriate value. schemas' of this component to suppress this message. ngtsc(-998001) The code: module Feb 18, 2019 · Trying to create an Autocomplete component functionality. for ex: change this <cdk-virtual-scroll-viewport itemSize="50"> to this <cdk-virtual-scroll-viewport itemSize="10"> Dec 7, 2023 · If your items have a fixed height, specify the itemSize attribute on the cdk-virtual-scroll-viewport. There is 1 other project in the npm registry using ng-cdk-table-virtual-scroll. *cdkVirtualFor accepts data in the form of an Array, Observable<Array>, or a custom DataSource. I need only scrolling for cdk virtual scroll, but the scroll comes for whole side n Oct 27, 2021 · The Angular Material cdk-virtual-scroll-viewport property is not working correctly for nested *cdkVirtualFor or *ngFor. In my opinion, the problem occurs every few pixels that correspond to the value set in maxBuffer, in fact the lower the maxBuffer, the more it appears, but having a high maxBuffer means slowing down the application. After this change I got an issue that when I'm using the cdk scroller, the last items are overlapping with the soft buttons on android and you can't see the last item. While the BehaviorSubject does indeed get updated, i cannot see the new version in the view. Please Aug 1, 2019 · I have a list of items (products) inside a virtual scroll, the problem occurs when I change the items of array. Here is the working of <cdk-virtual-scroll-viewport> in app. px]="5*42" minBufferPx="400" maxBufferPx="400" > That happens because your itemSize is too big for the container height. Commented May 9, 2023 at 14:48. I created a virtual scroll list with divs. hcth hfzac wdcdn gghzvu bpj pmndw rczu swgxwva agkt smb