Some kind of security exception that I cannot trace to my own code
I was hoping someone would recognize this stack trace, as I cannot trace the error to my own code so I don't know how I can solve it: Xamarin Exception Stack: System.ArgumentNullException: Value cannot...
View ArticleApplication.Resources StaticResource not found for key
Hi, I am trying to define a Style for a custom control I have created in the Application.Resources section of my App.xaml.cs file. However the page that references this file raises an exception...
View ArticleHow can i use Xam.Plugin.Badge
There are others plugin to show how many messages my App received? And i'd like with the image and the number of message received inside it. How can i do this? I'm trying to implement this plugin, but...
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Remove extra space from listview
I am using two listview in my xaml page which are loading perfectly but takes unnecessary extra space which is not required. It affects layout. I have tried using footer but it didn't helped out....
View ArticleShowing a temporary icon while loading the real image from Azure blob
Hi devs, I have a view where I load an image from azure, but everytime the app loads the image you see white space before the image appears. I want to show an icon while the loading happens and until...
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Cannot update Xamarin.Forms from 3.4.0.1029999 to 3.5.0.169047
I have a Xamarin.Forms solution with .netStandard 2.0 core project project_name. It stops compiling immediately after I try to upgrade Xamarin.Forms from 3.4.0.1029999 to 3.5.0.169047. It complains to...
View ArticleSpecified cast is invalid Xamarin Listview
I am using this link (https://canbilgin.wordpress.com/2018/03/17/re-order-listview-items-with-drag-drop-ii/) for drag and drop feature in Xamarin Forms Listview items. I'm getting the error "Specified...
View ArticleFabulous F# Functional App Development
Hello all! I can't find a thread on Fabulous via search so I'm assuming the subject hasn't come up yet. It's a young framework developed in part by F#'s Don Syme that uses F# and elmish MVU to build...
View ArticlewebClient.DownloadFileAsync() is loading html source of login... why?
Hi, I try to download a file from an old SharePoint. So I get a file using "webClient.DownloadFileAsync()", but unfortunately the file contains html source of the login-Page. Any Idea why? private void...
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Two listviews one over the other causes unwanted inbetween space.
Hey guys, I'm having an issue here and would like some insight on this. I'm trying to have tow listviews in one page, but when I do it, it causes an unwanted space inbetween my listviews. Here's a...
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Blank space after listview items.
Hi all, My listview Bottom portion has some blank space, I tried to remove it by adding Footer and HasUnevenRows, but not get lucky. Screenshot: My code: <ContentPage> <ScrollView>...
View ArticleUpdate item properties in a ListViews ObservableCollection
I have a ListView which is bound to an ObservableCollection. Is there a way to update a single cell whenever a property of a SomeModel item changed, without reloading the ListView by changing the...
View ArticleHow to take a point on the map?
Good afternoon, have a nice day OK, I have a problem, I want to know the location of a point on the map other than the device I had thought to use the location of the device and with buttons move the...
View ArticleHow to create button pressed effect?
Hello, I need to create a button/image/whatever that changes image while pressed to create the button pressed effect. How can i get to the 'while pressed' state? Even if using custom renderers, i cant...
View ArticleLive Previewer Shows Me Nothing
All I get is a gray screen that says "AndroidFormsPreviewerRenderer" Here is a simple sample I used to verify it is not anything complicated (XAML/Code Behind) <?xml version="1.0"...
View ArticleShadow CustomRenderer for iOS dismisses cornerRadius?
Hi, I have found this custom renderer for making shadows on a frame look better, but... When using the custom renderer I do not have the option for rounded corners anymore. How do I accomplish both?...
View ArticleUnable to activate instance of type Java.Lang.Runnable from native handle
I am getting recently so many Java errors. is there anyone else experience such exceptions? Full stacktrace looks like below. I am not able to understand and i am not able to reproduce myself but i can...
View ArticleShadow CustomRenderer for iOS dismisses cornerRadius?
Hi, I have found this custom renderer for making shadows on a frame look better, but... When using the custom renderer I do not have the option for rounded corners anymore. How do I accomplish both?...
View ArticleScanning using ZXing.Net.Mobile.Forms ZXingScannerView
How do I use the ZXingScannerView in a content page to Scan a QR Code? I also want to have a red rectangle (Target Area) inside of the view with a cancel button to end the scanning. How do I accomplish...
View ArticleTrying to place a grid on top of the listview which going to back of listview
I am trying place a grid on top of the listview dynamically and it displaying that grid in background of listview. Can someone help me to fix this issue?
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