Questions tagged as 'xamarin-forms'

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Error uploading with FireBaseStorage.net with Xamarin

I developed the following routine to upload images. var task = new FirebaseStorage("xxxxxx.appspot.com") .Child("data") .Child("random") .Child("file.png") .PutAsync(img); When I...
asked by 26.08.2018 / 21:40
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Problem loading local db data to two pickers

Hello. I have two pickers that loads data from one api. A picker brings category data and the other subcategory. When I select a category the picker subcategory is loaded with the data of the corresponding subcategory. Save selected data to a lo...
asked by 02.07.2018 / 01:35
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Search button for my project not appearing

I have in one of my screens a peculiar problem, the Search Search is not appearing in one of the smartphones, but in others and in Genymotion they appear. Note:Apparatus1=GalaxyNote5,apparatus2=QuantumMUVFollowthecode:<?xmlversion="1.0" e...
asked by 27.07.2018 / 21:23
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User Alert Message - Xamarin.Forms

I'm working with Xamarin.Forms, I have a method in one of my ViewModel that searches a web service for a list of Objects and later these objects are displayed in a View, so far everything works normally. The problem is as follows, I want...
asked by 21.06.2018 / 14:51
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Xamarin Forms Error

Good afternoon, folks, I'm trying to compile my project in Xamarin Forms and it's giving this error: Gravidade Código Descrição Projeto Arquivo Linha Estado de Supressão Erro ***Falha inesperada da tarefa "Aapt".*** System.Agg...
asked by 22.06.2018 / 20:14
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Visual Studio 2017 OleDB Xamarin.Forms

I'm looking for help in the following, I'm doing a multiplatform project using Visual Studio 2017 and Xamarin.Forms, the problem is: I need to make a connection to MS Access Database. I've seen a lot of tutorials and all used OleDB to...
asked by 03.07.2018 / 15:16
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ListView Item Xamarin Forms being opened 2 times Custom Controls

When viewing my list and clicking on an item, it opens 2 times the same page as the item. public class DeliveryViewModel : BaseViewModel { public ObservableCollection<Delivery> Delivery_Col { get; } public Command<Delivery>...
asked by 06.06.2018 / 01:25
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Error "The name" InitializeComponent "does not exist in the current context" in every Xamarin.forms project I create

From scratch, ALL of my projects are giving the error    The name "InitializeComponent" does not exist in the current context (CS0103) When they are created. I do not need to change anything, the error comes for free. As I researched,...
asked by 05.06.2018 / 17:37
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Xamarin Forms Android - Change Toolbar Background

I'm trying to change the background color of the Android Toolbar in a Xamarin Forms application. Expected result: CurrentResult: Styles.xml<resources><stylename="MyTheme" parent="MyTheme.Base"> </style> <style n...
asked by 08.05.2018 / 19:05
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How to open a local webview cshtml in Xamarin Forms

I have a project in Asp net mvc and another in Xamarin Forms, I need to call in my Xamarin Forms project a WebView Local but the page is like cshtml (asp net)     
asked by 01.05.2018 / 23:27