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ToolBar/AppBar icon disappears after navigation.
I am using PRISM framework in my Xamarin UWP application, and perform navigation using their NavigationService, like this: await _navigationService.NavigateAsync("MyTestPage"); MyTestPage, has a...
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How to connect MySql and Xamarin.Forms?
I have a task: make a connection between Xamarin.Android and MySql DB, wich is located on db4free.net Everything works for PC, but for Android there is an exeception: Why is it so? the code is: string...
View ArticleSqlite net multi tables
Hi, I have some problems with the relations between my 3 tables. The 1 is "StatsEx" many to one => "Ex" many to many with "Trains". My table "Ex" is filled when the app is launch. But during the...
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How to show Tab in bottom in Xamarin.Forms for Android
Xamarin.Forms Version is : 4.4.0.991265
View ArticleDocument scanner with camera
Hi, I am developing an application which has to scan an image and perform some image processing to the perfection of a hardware scanned document. I want to achieve the functionality of apps like...
View ArticleHow to do analytics in App Store Kids Category
I just had my app rejected from the app store and I am having trouble with interpreting what is acceptable to pass. My app needs to go into the "kids category" so there are more strict rules to...
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VS2019 the specified path file name or both are too long error !
Hi everyone ! I'm archiving to publish ios from my Xamarin forms project, but I get an error ; I've put my project on a shorter path to fix this error. (In :C). But , I keep getting errors. Because I...
View ArticleHow to navigate from class
All i want is to navigate from my popup class to content page without disable navigation bar i tried Navigation.PushModelAsync() but it disabling the navigation bar
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How to change the Navigation Page Title font in UWP?
I am trying to use a custom font for my Navigation Page Titles. I have scratched out the unwanted details. I want to use a custom font for the Navigation Bar title, that reads - "Page Title". I was...
View ArticleSetting tint color of an Image
Is there a way to change the tint color of a Forms.Image programmatically? Both in Android and iOS. The source of the Image is a simple .png file with transparent layer. I will welcome any other...
View ArticleCenter popup horizontally with Rectangle structure
Hello, I'am trying to center horizontally a popup with (x and y) position with a rectangle structure : https://docs.microsoft.com/en-us/dotnet/api/xamarin.forms.rectangle?view=xamarin-forms I tried...
View ArticleHow to stop loading duplicate item in Listview using Infinite Scroll.
I had facing a problem. I have 10 item in my database. i load 10 item on the list, when i scroll down same item load again again. how could i stop this problem. It will be helpful if anyone have a...
View ArticleMay I post a message about my app
That is to say, what it does, how to get it, etc.? I've been helped a lot here. RON
View ArticleAppStore submission problem
I submitted my application on the AppStore and it is refused by Apple because it crashes directly at launch. I can't understand what's going on. The application works perfectly in Debug and Release...
View ArticleHow to update item inside ObservableCollection
Hi all i have an ObservableCollection of model i want to change an item inside public class MainModel { public int id { get; set; } public string name { get; set; } public string mainImage { get; set;...
View ArticlePicker inside ListView
Hi, I have a picker that has dynamic selection, however I am struggling to save the selected value back to the DB. What command that I have to put in to refer back to its data? <ListView> ......
View ArticleScanning App in Xamarin forms using custom renderer
I have to implement a Scanning App in Xamarin forms. I want to use AVFoundation for iOS Google Vision for Android. can you please tell me how to achieve it. I tried ZXing but It is creating issue with...
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Pass Array as parameter in constructor in xaml
Hi. I'm trying to pass an Array as an argument to a constructor in xaml, like this: I'm filling the PartNumberDataList and PartNumberDataListID - arrays with values in the xaml.cs-file. The constructor...
View ArticleHow to implement a xamarin android solution in xamarin forms ?
Hi, I need help. I am making an application for android with xamarin forms, and I want to send data to the pc through the otg port. I found a project but it does exactly what I need, but the question...
View ArticleHow can I display a page in different variants depending on a global setting ?
Hopefully my app is fully MVVM compliant. I thought I could now easily exchange the XAML code of one page with another. How can I display a page in different variants depending on a global setting ? I...
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