1 files changed, 59 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/SliderRenderer.cs b/Xamarin.Forms.Platform.WinRT/SliderRenderer.cs
new file mode 100644
index 00000000..ee7a8adc
--- /dev/null
+++ b/Xamarin.Forms.Platform.WinRT/SliderRenderer.cs
@@ -0,0 +1,59 @@
+using System;
+using System.ComponentModel;
+using Windows.UI.Xaml.Controls.Primitives;
+
+#if WINDOWS_UWP
+
+namespace Xamarin.Forms.Platform.UWP
+#else
+
+namespace Xamarin.Forms.Platform.WinRT
+#endif
+{
+	public class SliderRenderer : ViewRenderer<Slider, Windows.UI.Xaml.Controls.Slider>
+	{
+		protected override void OnElementChanged(ElementChangedEventArgs<Slider> e)
+		{
+			base.OnElementChanged(e);
+
+			if (e.NewElement != null)
+			{
+				if (Control == null)
+				{
+					var slider = new Windows.UI.Xaml.Controls.Slider();
+					SetNativeControl(slider);
+
+					slider.ValueChanged += OnNativeValueCHanged;
+				}
+
+				double stepping = Math.Min((e.NewElement.Maximum - e.NewElement.Minimum) / 10, 1);
+				Control.StepFrequency = stepping;
+				Control.SmallChange = stepping;
+
+				Control.Minimum = e.NewElement.Minimum;
+				Control.Maximum = e.NewElement.Maximum;
+				Control.Value = e.NewElement.Value;
+			}
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			if (e.PropertyName == Slider.MinimumProperty.PropertyName)
+				Control.Minimum = Element.Minimum;
+			else if (e.PropertyName == Slider.MaximumProperty.PropertyName)
+				Control.Maximum = Element.Maximum;
+			else if (e.PropertyName == Slider.ValueProperty.PropertyName)
+			{
+				if (Control.Value != Element.Value)
+					Control.Value = Element.Value;
+			}
+		}
+
+		void OnNativeValueCHanged(object sender, RangeBaseValueChangedEventArgs e)
+		{
+			((IElementController)Element).SetValueFromRenderer(Slider.ValueProperty, e.NewValue);
+		}
+	}
+}
+\ No newline at end of file