Category "xamarin.forms"

Porting Xamarin tutorial over to .NET MAUI

For my first ever mobile app project (which will eventually become an actual commercial project), I would like to try out .NET MAUI. Unfortunately since it's s

I would like to change my Items Page from using CollectionView to ListView in xamarin.forms but I am having issues?

The above header refers. I would like to make this change so I can implement expanding lists (whereby my some of my list of items could have sub-items that can

Xamarin iOS Crash on Launch mono_handle_exception_internal mini-exceptions.c EXC_BAD_ACCESS (SIGABRT)

When I submit the app to the AppStore, I get an error from Apple, can I ask a question here After a while trying to read the crashlog file Apple attached (I us

Xamarin System.ObjectDisposedException: 'Cannot access a closed Stream.'

I'm working on a mobile project with Xamarin Forms and I have this error in particulary case but, it's impossible to use the debuger to fix it. System.ObjectDis

Xamarin.Forms: editing (in VS) custom control's property value at runtime in XAML doesn't cause any updates

I have a custom control in Xamarin.Forms app that's described via XAML. For example, CustomControl.xaml: <ContentView xmlns="http://xamarin.com/schemas/2014/

Newtonsoft.Json.JsonSerializationException Message=Cannot deserialize the current JSON object

here the ex Newtonsoft.Json.JsonSerializationException Message=Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collection

Xamarin.Forms: add control (in XAML) based on Platform

I have this (simplified) layout in XAML using Xamarin Forms: <controls:MyTabItemView> <ScrollView> <Grid> ......

Change item control property of checked listview item Xamarin.Forms

Hy, I am trying to show a comment input if the item checkbox is checked and hide it else, i have this XAML <ListView ItemsSource="{Binding TaskItems}" x:Name

Xamarin Drag and drop how to edit balloon icon and text see image

Using the drag drop sample https://github.com/xamarin/xamarin-forms-samples/tree/main/WorkingWithGestures/DragAndDropGesture I'm not sure its actually a notify

Azure B2C broken when explicitly-declared value for android:exported is used

My Xamarin.Forms application uses Azure AD B2C for authentication. Currently, I have to use Android 12 instead of Android 10. According to the documentation, it

Show CollectionView Grouping not working in Xamarin

I have an article here about showing Data Groups from Preferences . As per everyone's input I switched to CollectionView. I have consulted the article https://d

Uploading Image files from Xamarin App to Gallery and Azure

I am working on a development (Android, IOS) that requires uploading Images files to an Azure Storage, this images can be taken from the gallery or with the dev

Xamarin.Forms : Error running program in debug mode after reinstalling Visual Studio 2019 v 16.11.11 preview 1.0

I had to reinstall Visual Studio 2019 after a Windows 10 crash. My program was developed under VS 2019 16.9.3, and the reinstalled version is 16.11.11 preview 1

CarouselView Xamarin forms indicator view not showing

Im trying to see the indicator views , but for some reason I cant see them , also , I tried horizontals options : fill and expand , it does work on ios on lands

Xamarin Forms ToolbarItem text (only) is not displaying on Android (only)

I have a working Xamarin Forms app for Android and UWP. (I have not yet attempted iOS.) I have the following ToolbarItem: <ContentPage Title="Debug" ... >

Cannot get Alerts to show on iPhone no matter what way I code it and I have tried 4 different ways

Of these 4 methods mentioned, they all work in the simulator, but non of them work on the iPhone. Here are the pieces of code that come into play here. <List

How to dynamically add/remove back button from a page that's already been constructed in XamarinForms.Android?

Our team is currently implementing some UI/UX improvements to standardize how a user saves/cancels any changes made while editing data in our app; and I've got

DisplayPromptAsync is unable to disallow suggestions in Xamarin on Android

I have a working Xamarin Forms app for Android, UWP and one of these days, iOS. I ask the user to type a userid in a DisplayPromptAsync() and I would like to di

How can display Picker item of firebase realtime using xamarain forms and add to firebase when select item

I want to display a picker items from firebase how can do this ? <Picker x:Name="AppointmentPatientName" Title="Patient Name" > <Picker.Ite

Xamarin forms android throw null exception after updating Xamarin forms to 5.0.0.2401

I have updated Xamarin Forms to latest version(5.0.0.2401). It is working fine in iOS. In android first it returns Error: Could not find 2 Android X assemblies,