CommandParameter binding does not work
I am observing strange behavior when attempting to bind to a CommandParameter. Although the IsEnabled binding works fine, the CommandParameter binding results in a null argument being passed to my...
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View ArticleCustom Cell Button Click Show DisplayActionSheet
Hi! I use a custom cell for my listview. I create buttons inside the custom cell. I want to show displayactionsheet when i press this button. But i can't do it, because custom cell class is viewcell,...
View ArticleEvery update of ObservableCollection should run the Converter on ItemSource....
Hello, I have a ListView. The ItemSource is bind to a ObservableCollection. ListView: <ListView xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"...
View ArticleHow to catch platform specific errors in PCL Xamarin Forms
Hi there, I am developing a CROSS PLATFORM mobile that works on ANDROID and iPhone. My project structure is 1. PCL 2. Android 3. iOS I have a screen(XAML) where I upload a photo to an Image. On an...
View ArticleFind image path
Hi, I am taking a picture with the camera which is saving with the relative path in a subfolder (Named: imgFolder). After that I want to load that image. I tried to load it from the PCL project and...
View ArticleAdd separator/divider between rows in a ListView
I know there exists a solution for IOS(using ExtendedViewCell from Xamarin forms labs), but I am looking for a way to do the same for Android. This is how I am solving it for now, looking if someone...
View ArticleSave a stream as a string
Hello, I would like to save a stream as a string. I am converting it to a stream like this: public string StreamToString(Stream s) { s.Position = 0; StreamReader reader = new StreamReader(s); string...
View ArticleStrange application on my device
Hi, Every time I deploy my application (debug, release, phone or tablet) appears another application with the same icon as mine. When I tried to open this app, it crashes and shows a message saying...
View ArticleCross Platform Crop Image View
Hey, Anyone have ever implemented some custom crop image UI that can be used in forms ios/android/win phone? What I`m trying to achieve is something like instagram that crop a image to a square, so I...
View ArticleHow do I create an Editor that's readonly and supports carriage returns?
I am unable to create an editor that's read-only and supports carriage returns. My renderer has this: this.Control.InputType = Android.Text.InputTypes.Null;
View ArticleDo ColumnDefinitions have to be added to a Grid pre ui tree?
I have a weird issue where I add a bunch of items in code behind to a grid, they show fine when I set their row/col via Grid.SetRow/SetColumn. Problem is that the ColumnDefinition count is always 0....
View ArticleListview without animation on iOS when cells are added
Is it somehow possible to disable the animation on iOS when a cell gets added to the Listview?
View ArticleHiding the Status Bar and the Action Bar in Android App
Can anyone tell me how to implement this in a (Xaml) implementation of an Android app?
View ArticleDifficulty Consuming ASMX using Method GET and POST
Hi, I am new to mobile development and I am struggling to consume ASMX using Xamarin , I wonder how would the implementation of the GET and POST method. I have two projects WS and PCL. Implementation...
View ArticleDo forms use a two pass rendering system? Does Something like Microsoft's...
Basically I need a way to make a uniform width and height amongst multiple items and in Microsoft's XAML where we had the measure pass and arrange pass we could do this via the DesiredSize and then set...
View ArticleGet Version Information
Is there a built in way in forms to get version information of the app? Or do we have to implement this ourselves? For iOS: var ver = NSBundle.MainBundle.InfoDictionary["CFBundleVersion"]; For Android:...
View ArticleAnimationDrawable in Custom Renderer
Hi, Has anyone had any success with using animationdrawables in android custom renderers? If so would you mind giving me some tips or a code snippet, I'm a bit lost as I have rarely (never) been asked...
View ArticlePage objects not being Garbage Collected after navigation
I attempted to post this yesterday but I can't see it anywhere in the forum - apologies if we end up with a duplicate. I have run into a problem where it appears Page objects are not being Garbage...
View ArticleForms App OnStart() iOS - NullReferenceException...
I have a xamarin.forms app that is working fine on Android and I had working fine on iOS. Recently I have started bringing the iOS side up to date with the Android version and have run into an issue....
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