Bug 57787 - On UWP, setting the BackgroundColor of a Slider results in the slider rail/track not being displayed initially
Summary: On UWP, setting the BackgroundColor of a Slider results in the slider rail/tr...
Status: RESOLVED FIXED
Alias: None
Product: Forms
Classification: Xamarin
Component: Windows ()
Version: 2.3.5
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Paul DiPietro [MSFT]
URL:
Depends on:
Blocks:
 
Reported: 2017-06-27 12:35 UTC by John Hardman
Modified: 2017-08-24 19:57 UTC (History)
5 users (show)

Tags: UWP, Slider, BackgroundColor, ac
Is this bug a regression?: ---
Last known good build:


Attachments
Screenshot showing Slider with rail/track not painted (89.30 KB, image/png)
2017-06-27 12:35 UTC, John Hardman
Details


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Status:
RESOLVED FIXED

Description John Hardman 2017-06-27 12:35:43 UTC
Created attachment 23134 [details]
Screenshot showing Slider with rail/track not painted

On UWP, if the BackgroundColor of a Slider is set (e.g. to Color.White or Color.Yellow), the Slider rail/track is not displayed until the user hovers the mouse pointer over the Slider.

For example, the following code produces the Slider in the attached screenshot. The red arrow points to where the rail/track should be.

                Slider slider = new Slider();
                slider.BackgroundColor = Color.Yellow;
                slider.Maximum = 255;
                slider.Minimum = 0;
                slider.Value = 0;

I am using XF 2.3.4.231
Comment 1 Paul DiPietro [MSFT] 2017-06-28 14:11:42 UTC
Checked against the latest 2.3.6 nightly as well where the issue also exists.
Comment 2 Rui Marinho 2017-08-23 21:42:26 UTC
This should be fixed on 2.4.1-pre1
Comment 3 Samantha Houts [MSFT] 2017-08-24 19:57:37 UTC
https://github.com/xamarin/Xamarin.Forms/pull/1113