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await DisplayAlert for Simple Messages

Is it necessary to await the DisplayAlert for simple messages? ex: "Are you sure you want to exit?" , "Cancel transaction?" TIA

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Switch tab page cause previous tab page reload on Xamarin.Forms Android

I have a project and I use bottomtabbedpage-xamarin-forms plug-in in my project. github of the plug-in I use Xamarin.Forms Version 2.5.0.280555. It is fine. But if I update grade Xamarin.Forms to...

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ListView can make a phone call

Hi Xamarin Forum may I ask if it is possible I have a list of contact made out of ListView then lets say I have a searchbar then I search for my ListView records for a contact then I will tap on the...

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BorderColor isn't working

Hey, I'm really bored to loose time with that, but I'm stuck with the BorderColor of a button and the OutlineColor of a Frame. I tried both in xaml file but they aren't showing on my Android...

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Xamarin.forms Frame OutlineColor doesn't work on Android

Hey, I am trying to have a frame which has a border around it and by setting the OutlineColor is does show up on iOS+WP but it doesn't on Android. I have been googling alittle and the issue gets...

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How to change the Thickness of OUTLINE / BORDER frame ?

Hi, I want change the Thickness of a Frame border. I my phone the border is VERY small.. My code : <Grid RowSpacing="0" ColumnSpacing="0"> <Grid.RowDefinitions> <RowDefinition...

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Cross platform view with rounded corners fullfill by other view [Help to...

Hello, I've encourage a problem with UWP, and i am not sure how to full fill a native view with cross plaform view, Does any know how to achieve it ? public class RoundedCornerView : Grid { public...

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Spacing in a stacklayout

Hello, I'm actually making an application on Xamarin. I have a problem, I created a stacklayout to put inside several buttons, however, there is a space between these buttons which I can't remove it...

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Text based drag and drop in xamarin.forms

I have implemented text based drag and drop in Xamarin.Android, all boxes on left can be dragged and all boxes on right are drop targets. For Xamarin.Android project i had generated dynamic Textviews...

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DependencyService: System.MissingMethodException: Default constructor not...

I am receiving this error when using the Dependency Service on a Xamarin.Forms PCL. I have seen answers to this error that involve iOS and the Linker. However, I am running this on Android and the...

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Provide feature for Image Annotation

Hi, I want to build a feature in which user can take a picture from camera/gallery. Once done, it provides user to annotate a picture in basic form (Only basic strokes). I haven't found any feature...

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Cannot access a disposed object.\nObject name:...

Hello! This is a second version of this quesion asked in...

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How to make a Toast using Acr Userdialogs?

I tried like below, but getting an unhandled exception. ToastEvent toastEvent = new ToastEvent(); var toastConfig = new ToastConfig(toastEvent,"Toasting...",""); toastConfig.SetDuration(3000);...

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Disable auto scroll in ListView when adding items to group header

Hi! I'am using a ListView with group headers. When a group header is tapped, new items will be added to its ObservableCollection. The problem: When i scroll down and tap a group header, the ListView...

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Disabled button style

I'm using MVVM approach described here. To control a button behaviour I use ICommand binding with CanExecute flag. Everything works. But how can I control disabled button style (background color and...

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How to set Binding property to a ItemTemplate?

Ok, this is driving me crazy. I'm using a list of this model on my ViewModel public class NodeModel { string Id { get; set; } string varName { get; set; } int varQuantity { get; set; } double price {...

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Gradient Renderer not working on iOS

Hi, I'm trying to use a Gradient Renderer for which I have written a class in PCL and have written a renderer for both Android and iOS. Android renderer is working but iOS renderer is not showing the...

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warning about Task.Run()

Hi All, I have a question about how to use Task.Run(). Code is like below: public async Task GetResult() { Result result = new Result: result = await new Manipulator().GetResult(); if (result.Valid) {...

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ERROR ITMS-90032: “Invalid Image Path - No image found at the path referenced

I am deploying my xamarin forms ios application in apple store.While deployment i am getting errors as follows.Any one please help me to get out of this issue.It is very important for me. This is the...

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How to make multi selected picker in Cross Platform

Hi, I m using picker in xamarin cross but there has no property to select multiple item by picker. so it is possible in picker or not? or any other method that implement this.

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