Nested collectionview maui xaml GroupHeaderTemplate><DataTemplate x:DataType=„viewModels:GroupedPeopleItemList“><Label FontSize=„18“ FontAttributes=„Bold“ BackgroundColor=„Gray“ Text=„{Binding GroupName Mar 13, 2020 · Here is a little extra on the way you were trying previously and why it didn't work: If you are trying to set an GestureRecognizer for each item in your CollectionView, you are using it in the wrong place, you are setting the GR in the Collection Itself, not in each item. 0&quot; encodi Feb 8, 2023 · ScrollView objects should not be nested. Regards, Maria Oct 1, 2023 · I'm working on an POC in MAUI C#. Jun 17, 2022 · Note for Multiple Selections. In XAML, a CollectionView can display its items in a vertical grid by setting its ItemsLayout property to VerticalGrid: Sep 28, 2023 · Note you have ScrollView + VerticalStackLayout + CollectionView. cs, MainPage. com/watch?v=O3-jFuXqASE&list=PLzewa6pjbr3KKuUTp8ivXjcR4rvFvyoNw&index=1&pp=sAQBWelcome to Coding Droplets! I Nov 8, 2023 · Simplified the CollectionView but still couldn't get any content within the collectionview to show. I understand how to define the item template so that it contains Label objects that bind to properties of the objects in the collection: using (for example) Text="{Binding Surname}". Its size is unknown, so I can't provide a label for each element. Forms toolkit. NET MAUI) multi-bindings provide the ability to attach a collection of Binding objects to a single binding target property. net-maui; Share. youtube. Feb 27, 2025 · Therefore, for XAML markup expressions expressed with curly braces, you can eliminate the Mode= part of the expression. First issue is that will not set the correct BindingContext on a ContentView: <CollectionView. Aug 27, 2024 · CollectionView and ListView differences. Dec 22, 2022 · I'm making a app with . When I hard code the data, it works fine. I'm new in MVVm pattern and MAUI. Microsoft calls . And it can align the header grid properly to the grid in the data template in CollectionView. Below are the files and code I tried to achieve the results. How can I achieve this in . Provide details and share your research! But avoid …. The same is valid for Telerik . Jan 31, 2024 · I'm using . Feb 27, 2025 · Browse the sample. Aug 23, 2022 · I am using . Controls (8. Apr 2, 2025 · . NET MAUI Multi-platform App UI (. CollectionView supports single and multiple selection. Maui ListView vs CollectionView: Which is better? Learn the differences between Maui ListView and CollectionView, and which one is the best choice for your app. So it has to make an educated guess by looking at the closest BindingContext available in the XAML file. The list (or array if it works) resides inside a class of LTEInfo. Jun 10, 2024 · Create File New Maui Project; Create MainPageViewModel & Item. A Grid can be used as a parent layout that contains nested child Grid objects, or other child layouts. Not sure if this is 100% a bug in all cases either. This page was the only relevant search result and helped a lot, but was missing a piece for multiple selections. I personally create all of my UI code in C# using CommunityToolkit. Row 添付プロパティを持つ特定の Grid セルに子ビューを配置できます。 さらに、子ビューが複数の行と列に及ぶようにするには、Grid. cs and CasesPageModel with ReportedCasesView. S: quiet new to . Apr 3, 2023 · . As you can see the IntelliSense can access the Jul 21, 2022 · I use the tapgesturerecognizer nested in a collectionview and the command does not execute, if the item is not visible at loading time. Dec 5, 2022 · This is me, asking the same thing, a month ago: Pass the VisualState of CollectionView Item VisualElement to its child VisualElements Edit: So, what work arounds I use. NET MAUI) CollectionView is a view for presenting lists of data using different layout specifications. ImageCreateCommand, Source={x:Reference PageName}} The full MAUI commands are Dec 15, 2022 · That is causing your CollectionView items to unload and reload from memory every time you scroll. xaml Feb 25, 2025 · Grid. It replaces the older ListView with better performance, virtualization, and layout flexibility. Once I wrap my layout, that Jan 24, 2025 · Context menus. maui sample can't scroll too. Besides styles, visual states, data triggers? Jan 19, 2023 · Something isn't right with the XAML but it's not sticking out at me. I am trying to display a query result in a CollectionView but the data does not show up although the number of records retrieved is indicated. You could add a new issue at github maui issues, if you don't find a similar one already. However, the 'CollectionView' is bound to the CurrentData property of the page, which is a static property. NET MAUI XAML, with the x:DataType and x:Type directives, see Compile bindings that specify a generic type and x:Type markup extension. Mvvm. Aug 25, 2022 · So, I want the nested collection to be bound to the subset of the list of Answer objects with fields within the current FieldGroup, rather than the Fields of the current FieldGroup. Jul 29, 2024 · In one of my projects, I noticed that the CollectionView is not very performant. NET Maui app in Visual Studio, . RowSpan, and Grid. A comprehensive guide on accessing nested CollectionViews in XAML while using MAUI, with practical solutions and examples. forms I Added 2 collection views with the same DataSource binding and toggle visibility between them using the button the datasource is an Observablecollection of objects and each… Jan 24, 2025 · Nested Grid objects. Smooth scrolling is not possible here. When nesting Grid objects, the Grid. Oct 1, 2022 · I workaround by adjusting GridItemsLayout rather than providing a new one. Jun 7, 2024 · The other issue with CollectionView with Radio buttons is that when selecting buttons one by one from the bottom to the top, the very top button takes 2 taps to make it selected. NET MAUI? I did not find native alternatives to CollectionViews or properties in the CollectionView that disabled nested scrolling. GroupHeaderTemplate: <CollectionView. NET MAUI projects, you can call the following command in a CLI to create a new . You could refactor out that nested CollectionView with another BindableLayout (StackView, Grid, etc) and try with that and see what it does? I work in Xamarin/MAUI so that usually means "a CollectionView" for me, but in WPF you've got some more options for doing this. Feb 24, 2025 · The . #MAUIUIJuly is back! This post is my entry for . For any individual child of the FlexLayout, this property overrides the AlignItems property set on the FlexLayout. Row="2" 指代的是第三行，而 Grid. Otherwise you might want to look into devexpress, they have a CollectionView with expand Mar 14, 2023 · I am trying to figure out how to bind either a list or array of unknown size (whichever is easier, or is possible) to xaml in xaml code only. net Maui XAML pages. net MAUI's <CollectionView> with a nested <CollectionView. In . You have three nested collections in your viewmodel . At compile time, I see no issues and I don't see any entries in the XAML Binding Failures window. Jan 11, 2013 · I had a similar question here, and my end result was to create a generic IValueConverter that passed the enum value I wanted to match in as the ConverterParameter, and it returns true or false depending on if the bound value matches the (int) value of the Enum. No idea what i'm doing wrong :/ Nov 18, 2024 · I'm working on a . Net 8. May 17, 2023 · I have the following XAML code: <ContentPage x:DataType="viewmodel:MonkeyViewModel"> <CollectionView ItemsSource="{Binding MonkeyList}";&gt; &lt;CollectionView. net maui on . Jun 21, 2023 · Whether using WPF, ASP. Data templates lower in the view hierarchy take precedence over those defined higher up when they share x:Key attributes. Below is an example image. From the code I get to the methods and properties of the first collectionView by means of an attribute x: Apr 8, 2025 · I want a behavior as if I was using WPF and had ItemControls without scrolling options or as if the CollectionView behaved just liked repeated grids listing all the content vertically. My idea solution is this one: &lt;CollectionView. It is simple to use and provides a variety of built-in features, such as item selection, editing, and sorting. NET7). There are frequent sudden stops while scrolling. Each of the regions may or may not be Jan 14, 2025 · In xamarin, expanders didn't work correctly in CollectionView and ListView, I don't expect it will work in Maui either. Name it CollectionViewGetStarted. ---This video is based on the quest Oct 1, 2023 · I'm working on an POC in MAUI C#. Jun 3, 2022 · On initial load of the page, everything is fine and displays all data correctly. If this is the case, then what is happening is that ALL the items are being rendered as the VSL expands to contain all the children, and so does the CV. Oct 31, 2024 · « ScrollView objects should not be nested. xaml. xaml, MainPage. CollectionView has no concept Feb 15, 2023 · I have a page that presents a list of items in a CollectionView within a ScrollView. For more information about this sample, see . Column 属性的索引值均从 0 开始，因此 Grid. NET MAUI) CollectionView supports displaying grouped data, and defines the following properties that control how it will be presented: IsGrouped , of type bool , indicates whether the underlying data should be displayed in groups. public partial class Items { public int itemNumber { get; set; } public string itemdescr{ get; set; } public List<Items> Child { get; set; } } Apr 10, 2024 · I've got a horizontally oriented (on top) and a vertically oriented (below) CollectionView on the same page. ItemTemplate> to bind to a collection of objects. NET, WinForms, HTML5 or Windows 10, DevExpress tools help you build and deliver your best in the shortest time possible. cs which is the Model file. After that I n Mar 29, 2023 · In . CasesPage. Apr 14, 2023 · I need to display a scrolling list of All invoices. Thank you. NET MAUI and trying to create a set of checkbox lists that will be put inside a FlexLayout so that they will wrap. Many developers, myself included, also choose not to use XAML. In XAML, this property is set on a child without any reference to its Jan 27, 2025 · For information about specifying generic types in . We are here to help. 40) May 10, 2021 · <CollectionView ItemsSource="{Binding BusinessList}" Not <CollectionView ItemsSource="{Binding Businesses}" And you should use . The reality is that . If you’re interested, here’s some resources I’ve published on using CommunityToolkit. Forms in that it adds the ability to create desktop apps in addition to traditional iOS Dec 27, 2022 · I want to add a Button in my CollectionView for each Item. By default, a TwoWay binding is used so that if the user changes the selected item, the value of the SelectedMonkey property is set to the selected Monkey object. The SwipeView is a container control that wraps around an item of content, and provides context menu items for that item of content. Markup: I tried to add multiple views for collectionView in Xamarin. The following examples show how to use the Expander view by setting the Header property to be a Label control and the Content to be a HorizontalStackLayout with an Image and a Label inside. Feb 9, 2023 · You have it almost right. . Grid Row 0 * should tell CollectionView that it has plenty of height; I was thinking maybe it gets assigned zero height. But when I update the page (either by switching page and switching back, or Pull to refresh) I get null reference Aug 7, 2024 · Create a new . NET MAUI CollectionView by leveraging data binding techniques, adding tracking properties, and using converters for UI element customization. NET Multi-platform App UI development workload with its default optional installation options. No document show how to set it . The DetailPage has a nested CollectionView using a DataTemplateSelector. Here is the example the application: Aug 2, 2022 · Description I have two issues with BindingContext. Might be a Maui bug when CollectionView inside RefreshView. Note the ItemsSource="{Binding Source={x:Reference Answers. public partial class MainPage : ContentPage { public MainPage(VM viewmodel) { InitializeComponent (); BindingContext = viewmodel; } } Apr 15, 2025 · This sample demonstrates how to use the . NET MAUI XAML doesn't have the same level of object connection that you might see in UWP, WinUI or WPF. DotNet MAUI Tutorial Series: https://www. \maui-samples-main\6. I would like the page to scroll down infinitely but the bottom CollectionView does not a Sep 29, 2023 · I have a class with nested classes / objects: public class MyTasks { public TaskDetails TaskDetails { get; set; } } public partial class TaskDetails { public TaskIndividual Mar 19, 2025 · In addition to Stephen's excellent (and genuinely recursive) treatment of this, I wanted to simplify my own answer and leave it SxS because backing a tree-style view with portable XML can still be a pretty decent way of going about this. Forms, I know that scrollable elements should not be nested. Again, switching to VerticalStackLayout (BindableLayout) solves this issue too. My DetailPage: A comprehensive guide on accessing nested CollectionViews in XAML while using MAUI, with practical solutions and examples. Before starting to develop . Net MAUI apps, Visual Studio 2022 version 17. ---This video is based on the quest Apr 25, 2025 · Displaying Lists with CollectionView Introducing CollectionView. In general, AFAIK (@hartez may know more) it's preferred to have one CollectionView, max, per page. cs and change MauiProgram. Feb 2, 2023 · I have a page that contains three regions (each a VerticalStackLayout with a Label and a Frame containing a CollectionView) with two Buttons at the bottom. NET MAUI, I would like to create a page which contains a CollectionView of Carousels. Steps to Reproduce. CollectionView is a layout/control which we can be useed in order to show some collection of data. Grid. Row, Grid. NET MAUI app that needs to call a method in parent's view model. NET MAUI CollectionView dont get populated. Feb 16, 2023 · I tested the code you provided in iOS, Windows in MAUI. . Maui. In addition, ScrollView objects should not be nested with other controls that provide scrolling, such as CollectionView, ListView, and WebView. I don't have option to modify the class structure because of the test data I am receiving in this format. Maui ListView is a scrollable list of items that can be used to display a variety of data types. cs and MainPageViewModel. ColumnSpan attached properties always refer to the position of views within their parent Grid. They're created with the MultiBinding class, which evaluates all of its Binding objects and returns a single value through a IMultiValueConverter instance provided by your Jun 29, 2023 · Description I have been testing NET MAUI (NET 7 with latest updates for Visual Studio and Windows) with different native components and recently noticed several issues. It aims to provide a more flexible, and performant alternative to ListView. private void ContentPage_Appearing(object sender, EventArgs e) { //avoid resize bug in InitializeComponent() circle; collectionView. The Self relative binding mode is used bind a property of an element to another property on the same element: Mar 28, 2024 · In a . cs. Column 添付プロパティと Grid. Column="1" 指代的是第二列。 此外，这两个属性的默认值均为 0，因此无需在占用 Grid 的第一行或第一列的子视图上设置。 Apr 5, 2023 · I've been trying to access a variable from my XAML code via binding. This is partly a collection of issues and partly a more specific issue. Apr 18, 2023 · In face, if we want to display the filtered data, we usually filer data on code behind instead of on the xaml which will result in a decrease in code efficiency. Jul 19, 2023 · In this blog post we will play and see what layout features CollectionView is providing to . Filter Items. NET MAUI — Understanding Font Size Discrepancies in . Controls" x:DataType="vm:MyViewModel"> <Grid RowDefinitions="50,50, *"> <control:MyContentView Grid. Learn more about Sep 29, 2023 · I am binding it in MAUI in CollectionView as: It is throwing unhandled error, not even entering the try catch block. xaml, CasesPage. NET Multi-platform App UI (. ItemsSource the nested constraint type Hello everyone, I‘m currently working with . 0\UserInterface\Views\CollectionViewDemos\CollectionViewDemos\Views\Scrolling\ScrollToByIndexPage. NET MAUI Compared to Jun 21, 2023 · Whether using WPF, ASP. Jun 8, 2022 · xaml. NET MAUI UI July - 2023, #MAUIUIJuly, an initiative by Matt Goldman. No matter how I operate, collectionview have not any scrolling action. Horizontal }; This results in a single row list, which grows horizontally as new items are added: Vertical grid. Dec 23, 2024 · I have CasesPage. Net maui and mobile dev. Any guidance on how to bind to Collection view will shall be highly appreciated. NET MAUI XAML provides support for System. Input; namespace SampleApp {public partial class MainViewModel: ObservableObject {// IncludeCancelCommand automatically generates a command that can be used // to cancel this command. I added a collectionView when I noticed that the top data wa . I got hung up trying to bind multiple selections to the view model without linking it in the code behind. The default setting of Auto means to use the AlignItems setting. From Xamarin. So when i add many items to the bound observablecollection, the command is only executed for those items that are visible after that process. ItemsSource, all you're left with is using another type of layout for the collection, such as a VerticalStackLayout, FlexibleLayout or a CollectionView (I recommend avoiding ListView for this) and then using a Grid inside of the DataTemplate for each Feb 2, 2024 · A handy list of . com . Introduction. The MVVM pattern is a natural choice for . Prerequisites. The top collectionview, groups the items and the grouped item's title is shown in Expander Header. Feb 19, 2025 · These two needs require the essential XAML syntax features of property elements and attached properties. MAUI is an evolution of the increasingly popular Xamarin. CollectionView supports context menus for items of data through the SwipeView, which reveals the context menu with a swipe gesture. Xaml: Aug 8, 2024 · The XAML DataBinding warning you get are not real errors and are just from the XAML diagnostics output. NET MAUI markup extensions, see Consume XAML markup extensions. 2 May 30, 2024 · Thanks Mustafa, have an additional question for you on this: The parent model class is actually a MVVM class that I set in the code behind for the page to be the source (so I'm not technically using the ItemsSource in the first CollectionView in the XAML to bind it). A Template Selector is just a class that takes the object from the binding and returns a DataTemplate that should be used to display the item, it's just a specialized value converter. NET MAUI and I try to adjust my page items with a FlexLayout. The child view blocks input from the parent. So the page would display Invoice Header #1 and the items associated with that invId. CollectionView is the go-to control for list rendering in . Field)}}" - that obviously doesn't work, but that is what I am basically Mar 19, 2023 · To show this behavior, I based a sample app off of MauiApp2 that is included in the samples download from GitHub for MAUI, and modified the DetailPage to hold the collection view. The CollectionView. RowSpan 添付プロパティと Grid. I've tested that. " – Aug 25, 2023 · Description If a CollectionView is nested inside another CollectionView, the user is unable to select an item in the parent view. ViewModels" xmlns:control="MyApp. Apr 16, 2023 · Suppose there is a button on the DataTemplate of CollectionView, and if we click the button ,the current item will be removed from the list. Asking for help, clarification, or responding to other answers. Contains(a. CollectionView. Views. ColumnSpan 添付プロパティを使用します。 Dec 1, 2023 · After two weeks of suffering and frustration, I ended up with a genius solution - got rid of the EntryView and TranslationView converting both of them to DataTemplates for better performance, then created a single view to hold the whole thing - EntriesView with a EntriesViewModel. NET MAUI ListView には、選択可能なデータ項目がスクロール可能な縦型のリストで表示されます。 ListView では、ヘッダーとフッター、グループ化されたデータ、プルから更新、コンテキスト メニュー項目の表示がサポートされています。 Feb 28, 2023 · In the XAML code, you have set the binding context of the page to this by using BindingContext = this;. Specifically, when I try to bind a command in my Content Jul 24, 2023 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. NET MAUI 9 application and running into a problem with binding when using RelativeSource while setting x:DataType in XAML. Maybe Feb 6, 2025 · Secondly ObservableCollection Item has Child List of Members which is nested in CollectionView unfortunately it is not also updating the UI, Anything if I am doing wrong please help me in this , as this is the first time I am working with MAUI application Feb 28, 2023 · Basic usage. I have tried to have one main collection view with isgrouped=true and a groupheaderlayout. 1- Create new . NET MAUI application, I'm using a CollectionView to display a particular ItemTemplate which also includes RadioButtons. I work with MVVM and want also pass the CommandParameter of the Item. Mar 18, 2025 · 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 Aug 2, 2023 · Since Grid doesn't support binding to collections for dynamic population, neither by exposing an ItemsSource property nor by using BindableLayout. The ScrollView is also redundant since the CollecitonView also has scrolling. Collections. I have read about grouping data for a collectionview, I have tried the examples that were in this documentation and those worked perfectly. Property elements. I recommended that you could use the SQL to query the data you want from the two tables instead of using the ConverterParameter to write the logic code in the code-behind. On any enclosing XAML element with a BindingContext specify the type with, for example, x:DataType="model:Sample". Generic is defined as the scg XAML namespace. NET MAUI Community Standup video hosted by Microsoft's Maddy Montaquila and David Ortinau. » So it’s likely you have to punt the scroll view. Should you have any questions or need assistance from a member of our team, write to us at info@devexpress. Sep 30, 2024 · データ テンプレートの詳細については、「データ テンプレート」をご覧ください。 実行時にアイテムの外観を選択. I believe this is because you have the CollectionView as a child of a VerticalStackLayout. You can exclusively use a collection view. Bind to self. Here's the working hard-coded Feb 27, 2024 · Note. NET MAUI. Where(a => Fields. When the expander is expanded, I want to displ Dec 1, 2023 · After two weeks of suffering and frustration, I ended up with a genius solution - got rid of the EntryView and TranslationView converting both of them to DataTemplates for better performance, then created a single view to hold the whole thing - EntriesView with a EntriesViewModel. ItemTemplate プロパティを DataTemplateSelector オブジェクトに設定することで、CollectionView 内の各項目の外観を、項目の値に基づいて実行時に選択できます。 . Note: I Don't know about other UI Collections, just the CollectionView. I've been working on the layout of one of my . Page. The CollectionView updates fine on adding, removing items, but not if I programmatically change an i Apr 21, 2024 · P. In this article, we are going to learn about how to add CollectionView in . Regards, Maria Sep 29, 2023 · I am binding it in MAUI in CollectionView as: It is throwing unhandled error, not even entering the try catch block. However, the mutually exclusive state is not achieved, since somehow the Grid within the CollectionView is not recognized as the Parent for the RadioButtonGroup. NET MAUI) XAML, properties of classes are normally set as XML attributes: <Label Text="Hello, XAML!" Aug 10, 2023 · As per the ScrollView documentation you shouldn't nest a CollectionView inside of a ScrollView: "ScrollView objects should not be nested. I don't know which is the property what is the image source. then as item template i tried to create an another collectionview which takes the group again and works as a normal horizontal collectionview but it did not work. The Itemsource of the collection view is a List&lt;RecipeGroup&gt; ( Jan 7, 2025 · I get why you try to put a CollectionView inside a ScrollView. Jul 2, 2024 · Compiled Bindings will improve the rendering and updating of your XAML data-bound controls by telling the compiler the type that is being used. but do have xaml knowledge. You can refer to the following code: Feb 14, 2024 · I'm using ContentView's (not duplicated though). A XAML page can display a clock that always shows the current time, but it requires additional code. 0. In this POC I need to bind a object with a nested List in a collectionView. Binding expressions are only compiled for the view hierarchy that the x:DataType attribute is defined on. Combine compiled bindings with classic bindings in XAML. xaml file: Jan 23, 2025 · — Maintaining ListBox Item Selection Across TabItems in WPF — Handling State Management in Blazor WebAssembly and . 注意. If the wizard does not propose a template for . Therefore I wrapped my page in a FlexLayout and also put a collectionview (picture 2 yellow background) and a Grid with a bunch of button (picture 2 green background) in another FlexLayout. The pagination controls inside the nested grid are not triggered when the imageButtons are clicked. I have nested grid below the above list to display paging controls used to navigate to different pages of the records. 0 Visual Studio 2022 version 17. I don't know why, but I'm able to access the variable, but I don't get any value. A FlexLayout is a control for stacking or wrapping a collection of child controls. Feb 6, 2025 · I have an expander control inside a CollectionView. NET MAUI the evolution of the old mobile-centric Xamarin. NET MAUI Blazor Hybrid — Enhancing WinUI 3 Expander: Implementing a Popup for Secondary Content — Navigating Font Size Challenges from Xamarin to . Jan 13, 2022 · The CollectionView nested inside will have an infinite size but then it is clipped by the Window. From the code I get to the methods and properties of the first collectionView by means of an attribute x: Jan 20, 2023 · Collection view in MAUI is complaining that the model property is not a property and is expecting a property Below is my problem, I have a following data model class 'A' public class A { public s Oct 26, 2022 · ** Good afternoon!** Situation, there is another collectionView inside the collectionView. ItemTemplate> <DataTemplate> <vm:PersonView BindingContext="{Binding Leader}"/> </DataTempla Aug 29, 2024 · For more information, refer to the following topic: FilteringContext. Conversely, any views in a hierarchy on which the x:DataType attribute is not defined will use classic bindings. Net MAUI. Net MAUI App. NET MAUI project. 10 Maui. NET MAUI Compared to Oct 1, 2024 · A XAML page can display a clock that always shows the current time, but it requires additional code. 2- make a new ContentPage and replace it's xaml with this down here Feb 26, 2025 · Learn how to address selection indication issues in . Mar 6, 2023 · I had to introduce x:DataType=„viewModels:GroupedPeopleItemList“ in my DataTemplate of the CollectionView. In your case, you don't need a ScrollView. Oct 21, 2024 · I have a collectionview binding to a list of records. ObservableColletcion intead of . When stacking the items, you can specify Direction, JustifyContent, AlignItems, and Wrap. ComponentModel; using CommunityToolkit. NET MAUI apps when data binding from properties between visual objects and the underlying data. Jan 20, 2023 · Collection view in MAUI is complaining that the model property is not a property and is expecting a property Below is my problem, I have a following data model class 'A' public class A { public s Oct 26, 2022 · ** Good afternoon!** Situation, there is another collectionView inside the collectionView. I want the user to be able to add a new item to this list by hitting an "add" button or tapping an image at the top of the page. NET MAUI controls that have internal scrolling, controls like: DataGrid, ListView, DataForm, ItemsControl. For example, an app-level data template will be overridden by a page-level data template, and a page-level data template will be overridden by a control-level data template, or an inline data template. NET MAUI "do's and don'ts" was yesterday provided to viewers of the latest . However, embedded scrolls are generally to be avoided. Jun 14, 2022 · I'm trying to update actual fields in an ObservableCollection that is bound to a CollectionView. The VerticalStackLayout is redundant since you only have one child. Filter items are separate controls within your application that automatically retrieve available values, format settings, and other information from the bound control – CollectionView. Work-around might be to "hardcode" a height on row 0. Do you really require a CollectionView? Or could you use a StackLayout with BindableLayout for example? That will definitely work. Column, Grid. SizeChanged += CollectionView_SizeChanged; } private void CollectionView_SizeChanged(object sender, EventArgs e) { // content template sould have fixed size, or it will bug again int Feb 24, 2025 · CollectionView collectionView = new CollectionView { ItemsLayout = LinearItemsLayout. XamlC uses the x:DataType="<type-name>" on <DataTemplate> to generate type-specific bindings, however, somce times the scope is incorrect or if the XAML is wrong but happens to match there is no exception and just fails silently. This sample demonstrates how to use the . Lightweight: Optimized for fast loading and low memory use. NET MAUI developers. Feb 21, 2023 · The relevant XAML looks like the following: <controls:RadioGroup ItemsSource="{Binding Themes}" SelectedValue="{Binding PreferredTheme}" /> The child ContentView also uses its own view model and I've defined the x:DataType in its declaration. I would love to see an example of "I would recommend reading about the Model-View-ViewModel (MVVM) pattern, then move the shared collection into a service that can be injected into each ViewModel via constructor injection". Maui CollectionView is a . My code: View <?xml version=&quot;1. Something like this: <ContentPage xmlns:vm="MyApp. NET MAUI) is a framework for building modern, multi-platform, natively compiled iOS, Android, macOS, and Windows apps using C# and XAML in a single codebase. 3 or greater needs to be installed with . So the issue could be related with the services:DigitalInput retrieving the data, they should be correctly formatted with no blank space in those properties. xaml file: Aug 31, 2022 · Phenek changed the title [Bug Android] Scrolls conflicts with nested ScrollView(s) (CarouselView, CollectionView, ListView) [Android] Scrolls conflicts with nested ScrollView(s) (CarouselView, CollectionView, ListView) Aug 31, 2022 Jan 23, 2025 · — Maintaining ListBox Item Selection Across TabItems in WPF — Handling State Management in Blazor WebAssembly and . Jul 17, 2023 · I am trying to avoid bad practice by NOT adding a Collection View inside of a Collection view to display nested data and I have a class of. Try this. I can also see content within the contentpage if it is outside the collectionview. cs as shown in the project repo; Start the app; Click the button marked "" in the lower right corner of the screen; Try to click one of the 3 buttons that appear above it Added a XAML snippet…I’m not defining the thing in XAML Please share your original code then. This works correctly. Besides,depending on your UI display, you can redesign your data structure. List Then, when you bind BusinessList, you have to choose the property to bind in the DataTemplate. Markup. Apr 6, 2023 · ColletctionView can't scroll . ItemTemplate&gt; Feb 24, 2025 · The SelectedItem property data binds to the SelectedMonkey property of the connected view model, which is of type Monkey. Nov 18, 2024 · I'm working on a . I'm using Shell too (setup standard . Row 和 Grid. Dec 20, 2022 · Looks good. NET MAUI) FlexLayout, which can arrange its children horizontally and vertically in a stack, and can also wrap its children if there are too many to fit in a single row or column. Feb 2, 2025 · using CommunityToolkit. Dec 8, 2022 · Description. NET MAUI project: dotnet new maui -n CollectionViewGetStarted Register your personal NuGet package source in Visual Studio. For more information about . NET MAUI CollectionView. Apr 21, 2024 · P. The following XAML shows an example of nesting Jul 16, 2023 · Whatever Element inside a CollectionView, its x:name="whatever" will not be recognized in code-behind. I know the collectionview is visible because when i change the backgroundcolour of the collectionview the colour of the page changes. As a test, I still placed the CollectionView inside a ScrollView. net 6. NET MAUI FlexLayout. I was able to test thi Sep 24, 2024 · End (or "flex-end" in XAML), which indicates that a child should be aligned at the end. So the ScrollTo API believes the item is currently in the view and refuses to scroll. Apr 15, 2025 · The . While the CollectionView and ListView APIs are similar, there are some notable differences: CollectionView has a flexible layout model, which allows data to be presented vertically or horizontally, in a list or a grid. Specifically, when I try to bind a command in my Content May 17, 2023 · I have the following XAML code: <ContentPage x:DataType="viewmodel:MonkeyViewModel"> <CollectionView ItemsSource="{Binding MonkeyList}";&gt; &lt;CollectionView. We could fix the sample by replacing the outermost StackLayout with a Grid as follow: Jul 15, 2023 · I'm trying to create a reusable ContentView in my . Row="0" /> Apr 30, 2023 · I have an a MAUI front end that connect to a button successfully from the VM with Command=&quot;{Binding BindingContext. ymy jhjpnjb ikfcu epcgf yyu wskvhyaa yvmslj xesnz ewr aoy