GroupHeaderTemplate, Header, and Footer not working in ListView
I used the example in the documentation at https://developer.xamarin.com/guides/cross-platform/xamarin-forms/user-interface/listview/customizing-list-appearance/ pretty much verbatim but I can't get...
View ArticleAre DataTemplates supposed to be so slow?
I am loading a DataTemplate on the fly when the user performs an action. Problem for me is I have what could be up to 100's of different templates based on different objects. These could be small...
View ArticleAdd TapGestureRecognizer to Custom Frame
Hi there. I have a problem when working with TapGestureRecognizer. I have a custom of Frame. Inside custom Frame i add a StackLayout ( inside this StackLayout have few controls ). My code as bellow :...
View ArticleOnStart, OnSleep, and OnResume not called
Hello, I created a Xamarin.Forms Shared application and noticed that OnStart, OnSleep, and OnResume are never reached. OnStart should be called in Xamarin.Forms.Forms.Init am I right ? Why are all of...
View ArticleUsing Zumero Sync to sync a SQLite database - Getting error during sync.
I am using Zumero Sync to sync a SQLite DB in my Forms application, I am getting an error during sync. I am using VS Pro 2015 When it its the sync function I get a pop up "An unhandled exception...
View ArticleStrange error on iOS 9 XF 1.5
Same times, usually when the iPhone have no internet, my app crashes and the message in the debug output is this: 2015-09-24 15:09:39.950 UseallE2ComercialAVMobileiOS[2556:735137] ** -[UIApplication...
View ArticleBest way to trigger specific events depending on the current page
Hi everyone, I have a phone with a physical barcode scanner. Depending on which page the user currently is, the barcode scanner is enabled/disabled and an event handler is added/removed. The event is...
View ArticleEditText: restrict edittext to enter 2 digits after decimal point
Hello, How to restrict edittext to enter 2 digits after decimal point? Thanks.
View ArticleClik here to view.
Xamarin Forms 2.0 and Visual Studio
I have a project that I am trying to upgrade to the newest version of Xamarin Forms (2.0). After upgrading I loose all Xamarin.Forms functionality in my app. For instance, DependencyService is not...
View ArticleProblem with PageRenderer
For Android project I have a jar package that contains a method "ShowView". This method get ViewGroup and should add his View to this ViewContainer. I have Xamarin.Forms project and for this I create...
View ArticleCan I use PCL Projects in a Shared Project
Hi, I have a shared project. I would like to put all my shared resources into a PCL library. Can I access that from my shared project? Best Tom
View ArticleNamespace Xamarin.Forms.Core not found
Hi, I'm just starting with Xamarin.Forms. I now ran into a problem when trying to write a XAML markup extension as described in Petzolds book to access embeded images. using System; using...
View ArticleDeploy to all three platforms at the same time when debugging?
This one is a productivity question. In VS2015, is there a way to deploy to all three platforms at the same time when debugging? Oftentimes, I make changes in the shared project to test them on...
View ArticleMasterDetailPage icon strange behaviour
We have a login screen (screenshot 1.png) that leads to a MasterDetailPage with a three-bar menu icon that looks like we want it (screenshot 2.png). When we disconnect, we're brought back to the login...
View ArticleDependency injection complaining about missing default constructor when it...
I've used the dependency injection successfully with other classes but I just created a class that the injection service seems to have a problem with and I don't understand why. The interface in the...
View ArticlePropagate touch from top view
Hello, I have a grid in top of another grid. Both grids have views that should respond to tap gestures. The problem is that the views that are in the grid "below" can't be touched. I have tried to set...
View ArticleClik here to view.
Please Help .......... the cart icon on Navbar
how to do the same thing to show the number of items on the cart icon of right top corner. any ideas ?
View ArticleSeeing Beacons in the background on Android in a X.F PCL solution.
So its straight forward enough to monitor for beacons in the foreground in a PCL with the Androids MainActivity being the IBeaconConsumer. But I'm not sure how to get background monitoring working, as...
View ArticleXamarin Forms Windows Store App Stuck on Splash
I have followed the instructions to create an app in Windows Store and the App gets stuck in the splash screen It goes through the LoadApplication line with no exception but to no prevail Side note...
View ArticleWhen running on Windows, is it defined how much space the toolbar takes on a...
When running a XF app on Windows, it is documented how high the toolbar is? It obscures the bottom of each page, so unless there is some wizardry required for using a toolbar on Windows, I need to...
View Article
