Merge pull request #16606 from unoplatform/dev/mazi/slider-tooltip

src/Uno.UI.RuntimeTests/Tests/Windows_UI_Xaml_Controls/Given_Slider.cs

@@ -12,6 +12,7 @@
 using MUXControlsTestApp.Utilities;
 using Uno.Extensions;
 using Uno.UI.RuntimeTests.Helpers;
+
 #if WINAPPSDK
 using Uno.UI.Extensions;
 #elif __IOS__
@@ -74,6 +75,35 @@ public async Task When_Slider_Constrained_Vertical()
 			Assert.AreEqual(0, slider.VerticalDecreaseRect.ActualHeight);
 		}
 
+#if HAS_UNO
+		[TestMethod]
+		public async Task When_Value_Decimal()
+		{
+			if (!FeatureConfiguration.ToolTip.UseToolTips)
+			{
+				Assert.Inconclusive("ToolTips are not enabled on this target");
+				return;
+			}
+
+			var slider = new Slider()
+			{
+				Value = 0.5,
+				Minimum = 0,
+				Maximum = 1,
+				StepFrequency = 0.01,
+				Orientation = Orientation.Horizontal,
+			};
+			WindowHelper.WindowContent = slider;
+			await WindowHelper.WaitForLoaded(slider);
+
+			var thumb = VisualTreeUtils.FindVisualChildByName(slider, "HorizontalThumb");
+			var toolTip = ToolTipService.GetToolTipReference(thumb);
+			var tb = (TextBlock)toolTip.Content;
+			var text = tb.Text;
+			Assert.AreEqual("0.50", text);
+		}
+#endif
+
 #if HAS_UNO
 		[TestMethod]
 #if !HAS_INPUT_INJECTOR

src/Uno.UI/UI/Xaml/Controls/Slider/Slider.mux.cs

@@ -1512,16 +1512,16 @@ public object Convert(object value, Type targetType, object parameter, string la
 						szFormat = "{0:0}";
 						break;
 					case 1:
-						szFormat = "{0:0.0}f";
+						szFormat = "{0:0.0}";
 						break;
 					case 2:
-						szFormat = "{0:0.00}f";
+						szFormat = "{0:0.00}";
 						break;
 					case 3:
-						szFormat = "{0:0.000}f";
+						szFormat = "{0:0.000}";
 						break;
 					default:
-						szFormat = "{0:0.0000}f";
+						szFormat = "{0:0.0000}";
 						break;
 				}
 			}