Taller Mobile C# (Mobile C-Sharp Developer Wokshop Costa Rica)
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View ArticleXLabs.Forms checkbox not working in iOS throwing exception
I Created Xamarin.Forms PCL project to work on CheckBox in Xamarin Studio(5.7) in Mac environment. I added XLabs.Forms package from Nuguet Package. CheckBox is working fine in android. But when i run...
View ArticleCan I bind a property that will update custom ViewCell renderer for iOS?
I have a simple ListView where I have populated the ItemsSource and ItemTemplate. The custom renderer needs to be run to set iOS specific cell properties on a button click, for example, but I cannot...
View ArticleXamarin.Forms use Camera to Capture Image using PCL.
Hello Everyone, I have used xlab to use camera functionality but it is throwing Error on below line var device = Resolver.Resolve(); Error: Object Reference not set to an instance of an object. is...
View ArticleXF with Mvvm - dumb question on debugging
I have an admittedly dumb issue that I am stuck on. I have a property that is being set from a picker in my UI in XF. When the value is set by the user, the setter is called. The setter has the...
View ArticleException on developer console, "You MUST call Xamarin.Insights.Initialize();...
Hi all, I have built and published my app in google playstore. Recently one of our user who uses Samsung Galaxy 3 reported that App is crashing frequently. Since Xamarin Insights is under renovation I...
View ArticleException on developer console, "You MUST call Xamarin.Insights.Initialize();...
Hi all, I have built and published my app in google playstore. Recently one of our user who uses Samsung Galaxy 3 reported that App is crashing frequently. Since Xamarin Insights is under renovation I...
View ArticleAdding padding to Hamburger Menu Icon
We are using the master detail page to implement navigation drawer hamburger menu.Now we are styling the action bar in a native way using a theme. <style name="CustomActionBarTheme"...
View ArticleAdding full screen buttons to Relative Layout
Hello Experts, I have created a content page and added buttons to it using a relative layout. My designer gave me the buttons pre-positioned, meaning, they are the same size as the screen resolution...
View ArticleChart is not display in xamarin.forms.
I want to display chart. For that i am using the following link. But chart is not displayed in the page. Anyone please give solution for this. I am using Xamarin.Forms.Labs.Charting version 1.2.1-pre 2...
View ArticleAre there issues with Binding on Android, or restrictions on property names...
My UI uses binding to the view models. Everything is working well on Windows, WinPhone and iOS, but on Android binding is failing. At run-time, the following is being reported on Android, even though...
View ArticleHow to service Button.Clicked event in a custom ListView.ItemTemplate
If using XAML, it is very easy as all the events are defined in the code behind where all objects of the page are accissible. But I am building UI in the code and servicing a button click event with in...
View ArticleToolbar that slides away when scrolling ListView - or Y scroll position of...
Hi, I'd like to be able to slide a toolbar away as you scroll the listview - like many apps these days do to provide more viewing area in a list. I've already implemented this using "LayoutTo" but that...
View ArticleHow can I make Xamarin.forms TapGestureRecognizer make an audible click sound?
I am using a TapGestureRecognizer for an Image on an Android device. When I tap the image, it is working properly, except there is no audible click noise like there is when I tap any other button.
View ArticleDateTime output in wrong Cultrue
Hey, I am having a problem with the output of a DateTime value. The device culture is German so I expected a DateTime to get formated to the culture but it doesn't work. <Label Text="{Binding...
View ArticleAdd left padding to entry
Is there an easy way to add padding to the left on an entry so the text doesn't start right up against the edge? I know I could do a boxview or something and hack it to make it be similar, but I feel...
View ArticleCustom emoji keyboard for crossplatform
Hello, Im working in chat project what needs a set of my own emoticons. But I couldn't find the way to implement emoji keyboard for cross platform, anyone can help me? Thanks a lot.
View ArticleCan't get context menu working
Hi, I can't seem to get my context MenuItems to fire either the edit or the delete commands indicated below. The menu comes up just fine, but nothing happens. Hopefully someone can help me out....
View ArticleDatabinding to a command inside a DataTemplate
Hi there, I'm just having a play with Xamarin Forms and databinding and am having a problem working out the syntax. Say I've got a view model associated with some XAML. Inside the view model I've got a...
View Articlex:Reference not working?
I'm trying to use a view-to-view binding using x:Reference, but am having no luck. Specifically, I am binding the command/parameter of a TextCell's context actions menu. I wish to bind the command...
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