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Questions tagged [bindableproperty]

54 questions
4
votes
1 answer

Xamarin BindableProperty works with binding only when I don't use BindingContext

in Xamarin Forms I created a Page that contains a custom component which I want to feed a value just like this: This, however, doesn't work. When I use a raw number instead of the Binding it works. The…
tagtraeumer
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Xamarin: Binding property of nested custom control inside nested custom view

I'm asking myself if there's a better way to bind to a nested property. The set up is: Custom control inside a custom view inside a custom page. So: CustomControl -> CustomView -> CustomPage The CustomControl has an entry and I ultimately want the…
Remo
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Xamarin.Forms Bindable Properties

It may sound like a dumb question but why are bindable properties static? public static readonly BindableProperty MapSpanProperty = BindableProperty.Create( propertyName: "MapSpan", returnType: typeof(MapSpan), declaringType:…
user12945091
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0 answers

Bindable Property In IValueConverter Always Null

I have a converter that deals with Boolean values and uses them to pick either of two ImageSources. I defined the ImageSource as two parameters in the converter, later on I need to supply those resources using the DynamicRsource markup extension…
Scarnet
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Why does setting BindableProperty.DefaultValue not call OnPropertyChanged?

I'm using a bindable property like this in a class the inherits from Xamarin.Forms.ContentView: public static readonly BindableProperty OverlayColorProperty = BindableProperty.Create(nameof(OverlayColor), typeof(Color), typeof(MyControl),…
Gabriel Weidmann
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Xamarin Forms - Custom Control Binding Issue

There's a good chance I haven't had enough coffee today, but I've got an issue I've been going around in circles with for the last few hours. I've created a CustomEntry class which is just a ContentView containing an Entry and a few other bits and I…
Martin Crawley
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Change in ObservableCollection item property not triggering UI update in ContentView in .NET MAUI app

In my .NET MAUI app, I have a feed that displays some data along with a like button. Because I have different variations of this feed in the same app, I created a ContentView with BindableProperty's so that I can reuse my code. Initially, things…
Sam
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MAUI Custom Control : XFC0009 No property, BindableProperty, or event found for "Title", or mismatching type between value and property

Am using MAUI application on .Net 6. Created a custom control for activity indicator, and created bindable property for Running & title. CODE BEHIND ``public partial class CustomProgressDialog : VerticalStackLayout { #region CTOR public…
abhi
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.Net Maui Couldn't get value by binding to Attached Property

In .net Maui 7, I have been trying to bind custom bindable property to an attached property value. I have tried various ways to bind the attached property value to custom bindable property value. In xaml code below you will see the custom view…
yigit sertac
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Xamarin Forms: How to send object and event through to ViewModel on ImageButton Clicked using Commands

I've created a CustomElementTagger class which allows me to set and get custom set tags on view elements. I need this because I want to have a single command that gets executed but has different behavior on the corresponding tag on the element. In…
ThisQRequiresASpecialist
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Problems passing an ObservableProperty variable via BindableProperty into GraphicsView canvas

I am trying to pass a variable into my GraphicsView canvas, but it looks like I have some problems receiving the passed variable in my drawable. What am I doing wrong? Drawable public class NewDrawable : IDrawable { public float Vectors { get;…
Jonas Sønderby
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How to create markup extensions having bindable properties?

I want to have a markup extension called RgbColorExtension where R property is bindable to let me adjust its value with a slider. The following attempt does not work. Changing the slider does not effect the R property.
The Real Masochist
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How to bind data to the bindableproperty in xamarin forms

I have two pages that use the same form so I created a content view of form and apply bindable properties like this:
Đức Tú
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Access a custom controls bindable properties from its xaml

I want to declare a bindable property in my custom view and link it to the corresponding viewmodel. I use the MVVM pattern and want to separate ui logic and data logic from eachother. So I keep my status and other data in the viewmodel and update my…
Gabriel Weidmann
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Getting a property value from a ContentView (child view) to the ContentPage (parent)

As a not so experienced Xamarin developer I am trying to retrieve a property value from a child page (ContentView) in my Parent page (ContentPage). I can find quite some examples how to get / set the value from the parent page to the child page but…
Nicolas
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