Fixed [Windows] MAUI Entry in Windows always shows ClearButton despite ClearButtonVisibility set to 'Never' (dotnet#25567)

* Fixed-Entry-ClearButtonVisibility-Issue

* Added-Windows-SnapShot

* Added-SnapShots

* Added-Additional-TestCases

* Added-new-testcases.

* Modified-Entry-Cases

* Updated tests.

* Added-SnapShots

* Fixed-Entry-ClearButtonVisibility-Issue

* Added-Windows-SnapShot

* Added-SnapShots

* Added-Additional-TestCases

* Added-new-testcases.

* Modified-Entry-Cases

* Updated tests.

* Added-SnapShots

* Added-TestCase-Windows-Only

---------

Co-authored-by: Prakash Kannan <prakash.kannan@syncfusion.com>
Co-authored-by: prakashKannanSf3972 <127308739+prakashKannanSf3972@users.noreply.github.com>

Author: NirmalKumarYuvaraj

src/Controls/tests/TestCases.HostApp/Issues/Issue25473.xaml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+				 xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+				 xmlns:local="clr-namespace:Maui.Controls.Sample.Issues"
+				 x:Class="Maui.Controls.Sample.Issues.Issue25473">
+
+      <VerticalStackLayout Spacing="20" HorizontalOptions="Center">
+        <!-- Entry control with ClearButtonVisibility set to 'WhileEditing' -->
+        <HorizontalStackLayout>
+          <Entry
+                x:Name="mainEntryField"
+                AutomationId="MainEntryField"
+                BackgroundColor="Transparent"
+                ClearButtonVisibility="WhileEditing"
+                FontSize="16"
+                ReturnType="Search"
+                IsSpellCheckEnabled="false"
+                IsTextPredictionEnabled="false"
+                HorizontalOptions="Fill"
+                VerticalOptions="Center"
+                MinimumWidthRequest="300"
+                VerticalTextAlignment="Center"/>
+        </HorizontalStackLayout>
+      
+        <!-- Button to toggle the ClearButton visibility for the Entry control -->
+        <Button AutomationId="ToggleClearButtonVisibilityButton"
+                Text="Toggle Clear Button Visibility"
+                Clicked="OnToggleClearButtonVisibilityClicked"/>
+      </VerticalStackLayout>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/Issues/Issue25473.xaml.cs

@@ -0,0 +1,20 @@
+namespace Maui.Controls.Sample.Issues
+{
+
+	[Issue(IssueTracker.Github, 25473, "MAUI Entry in Windows always shows ClearButton despite ClearButtonVisibility set to 'Never'", PlatformAffected.UWP)]
+	public partial class Issue25473 : ContentPage
+	{
+		public Issue25473()
+		{
+			InitializeComponent();
+		}
+
+		private void OnToggleClearButtonVisibilityClicked(object sender, EventArgs e)
+		{
+			if(mainEntryField.ClearButtonVisibility == ClearButtonVisibility.Never)
+				mainEntryField.ClearButtonVisibility = ClearButtonVisibility.WhileEditing;
+			else
+				mainEntryField.ClearButtonVisibility = ClearButtonVisibility.Never;
+		}
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue25473.cs

@@ -0,0 +1,42 @@
+#if WINDOWS
+using Microsoft.Maui.Platform;
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues
+{
+	public class Issue25473 : _IssuesUITest
+	{
+		public Issue25473(TestDevice testDevice) : base(testDevice)
+		{
+		}
+
+		public override string Issue => "MAUI Entry in Windows always shows ClearButton despite ClearButtonVisibility set to 'Never'";
+
+		[Test]
+		[Category(UITestCategories.Entry)]
+		public void VerifyEntryClearButtonVisibilitySetToWhileEditing()
+		{
+			App.WaitForElement("ToggleClearButtonVisibilityButton");
+			App.Click("ToggleClearButtonVisibilityButton");
+			App.ClearText("MainEntryField");
+			App.EnterText("MainEntryField", "ClearButton is set to WhileEditing");
+			App.Tap("MainEntryField");
+			VerifyScreenshot();
+		}
+
+		[Test]
+		[Category(UITestCategories.Entry)]
+		public void VerifyEntryClearButtonVisibilitySetToNever()
+		{
+			App.WaitForElement("ToggleClearButtonVisibilityButton");
+			App.Click("ToggleClearButtonVisibilityButton");
+			App.ClearText("MainEntryField");
+			App.EnterText("MainEntryField", "ClearButton is set to Never");
+			App.Tap("MainEntryField");
+			VerifyScreenshot();
+		}
+	}
+}
+#endif

src/Controls/tests/TestCases.WinUI.Tests/snapshots/windows/VerifyEntryClearButtonVisibilitySetToNever.png

@@ -68,16 +68,20 @@ static void OnIsDeleteButtonEnabledPropertyChanged(DependencyObject d, Dependenc
 			Button? deleteButton = element.GetDescendantByName<Button>(DeleteButtonElementName);
 
 			// Adjust the second column's width to 'Auto' when the delete button is enabled, and set it to zero when disabled.
+			// Disables the delete button when ClearButtonVisibility is set to Never, and enables it otherwise.
+			// In WinUI, they set the opacity to '0' when the button is disabled. Here, we use IsEnabled to manage visibility.
 			if (deleteButton?.Parent is Grid rootGrid && rootGrid.ColumnDefinitions.Count > 1)
 			{
 				int deleteButtonColumnIndex = Grid.GetColumn(deleteButton);
 				if (GetIsDeleteButtonEnabled(element))
 				{
 					rootGrid.ColumnDefinitions[deleteButtonColumnIndex].Width = new UI.Xaml.GridLength(1, UI.Xaml.GridUnitType.Auto);
+					deleteButton.IsEnabled = true;
 				}
 				else
 				{
 					rootGrid.ColumnDefinitions[deleteButtonColumnIndex].Width = new UI.Xaml.GridLength(0);
+					deleteButton.IsEnabled = false;
 				}
 			}
 		}