MVVM Jagged ListView Design
Hi All, I am building my first MVVM project with Xamarin.Forms and all is going very well so far. The main element of the project is a questionnaire. The questions are multiple choice but each question...
View ArticleDevice.Idiom Weirdness
I have two apps. When I run one on a 7 inch Android tablet emulator it reports correctly that the device idiom is the tablet. When I run the other one on the same emulator, it reports that the device...
View ArticleDatabase - Problem storing inherited parameters from abstract class
Lets say I've this Abstract class called Accident and a subclass CarAccident: public abstract class Accident : IComparable< Accident >, IComparable { public Int16 AccidentID; public DateTime...
View ArticleXamarin.Forms Entry strange behaviour
Hello, I have a page which I defined in XAML. It has 4 entries, one under another in vertical StackLayout. First, third and fourth entries behave normally - user can enter any text inside, as expected....
View ArticleWindows Phone Asynchronous is not Awaiting for WCF Service Calls &TabbedPage...
Hi, I am working on sample application using Xamarin.Forms (MVVM Pattern logic) with PCL (httpclient). I have designed the sample application with below scenario as "LoginPage(ContentPage) ->...
View ArticleListView + DataTemplate + Updating viewModel on ItemTapped => can't make the...
Hi everybody, I would like to know if some of you succeeded with updating a ListView item, on ItemTapped. For instance, i would like to change the label of the list item. My viewModel is well updated,...
View ArticleChanging MasterDetail behaviour on iPhone
Hi, When using a Phone I would like the user to first see the master view at full page width and then after clicking an item (in a listview) to navigate to the relevant detail view. But on the tablet...
View ArticleListView ItemLongClick event
Using xamarin forms in the listview item if user tap for long time I don't see any ItemLongClick event as we see in Android specific platform. Please suggest how to do it in xamarin forms listview.
View ArticleI want to do the 90-day-trial with Xamarin - but I can’t !!
Hi all I am trying to do the 90-day-trial with Xamarin.Forms under Visual Studio 2013. Note: I am new to Xamarin, App-development and - unfortunately - also to c# (I am a vb.net-developer). In four...
View ArticleIssues with a simple app
I'm working on a really simple app - here is the code: <TableView> <TableView.Root> <TableSection Title="About You"> <ViewCell> <Grid> <Grid.ColumnDefinitions>...
View ArticleError - Instable release
Hi, Folks! I am developing a simple application with addition, modification and deletion. However, I am in error here and not sure what comes to be ... ` [monodroid-gc] GREF GC Threshold: 1800...
View ArticleAttached Properties with Collection
I'd like to use this syntax in my XAML: <b:PersonGroup.Persons> </b:PersonGroup.Persons> </Button> So I created this attached property: public static readonly BindableProperty...
View ArticlePop multiple modal pages at once?
I have two modal pages presented with Navigation.PushModalAsync(). I want to pop them both at the same time. Is there a way to achieve this? Calling Navigation.PopModalAsync() twice doesn't seem to do...
View ArticleCross-platform settings are invalid
Set: this.HeightRequest = Device.OnPlatform(iOS:50,Android:50,WinPhone:70); Result: android height has become a 70
View ArticleMake title bar translucent or appear over page on iOS and Android with...
Is there a way to make the title bar translucent or appear over the page content in iOS and Android for Xamarin Forms? I made the BarBackgroundColor = Color.Transparent and that works for both, but the...
View ArticleAttached properties not invoking Getter and Setter properties
I'm migrating some code from Windows to Xamarin Forms and I've noticed a different behavior with Attached Properties: XAML on Windows requires Getter and Setter to be defined while they seem optional...
View ArticleUnexpected Crash
Hi All, I have no idea why this is happening. All of a sudden I am receiving the following exception when I run my App with the debugger attached: 08-08 12:11:58.490 D/SensorManager(11983):...
View ArticleHow to free memory from unused images?
Hey, My app is crashing very soon on a actual device because of insufficient memory space. I use many images in my app so I guess these are my problem. I have 2 different imageviews with the in use...
View ArticleXamarin Grid horizontal and vertical scroll and zoom
Hi, My requirement is to display Grid horizontally and vertically with scroll and zooming functionality also. Is there any way to implement this functionalities. Thanks in advance.
View ArticleChange the text of label in the view created using pageRenderer
Hi, In my application I'm using page renderer to show a native view.In that view I'm having a label.I need to change the text of that label based on my functionality using xamarin forms page not in the...
View Article