[UWP] Fixes call Tapped event ListView (#3400) fixes #2318 fixes #4901

- fixes EntryCellTextBox template

Xamarin.Forms.Platform.UAP/ListViewRenderer.cs

@@ -722,9 +722,9 @@ namespace Xamarin.Forms.Platform.UWP
 			List.SelectedIndex = index;
 		}
 
-		void OnListItemClicked(int index)
+		void OnListItemClicked(int index, Cell cell = null)
 		{
-			Element.NotifyRowTapped(index, cell: null);
+			Element.NotifyRowTapped(index, cell);
 			_itemWasClicked = true;
 		}
 
@@ -735,7 +735,7 @@ namespace Xamarin.Forms.Platform.UWP
 				var templatedItems = TemplatedItemsView.TemplatedItems;
 				var selectedItemIndex = templatedItems.GetGlobalIndexOfItem(e.ClickedItem);
 
-				OnListItemClicked(selectedItemIndex);
+				OnListItemClicked(selectedItemIndex, e.ClickedItem as Cell);
 			}
 		}
 

Xamarin.Forms.Platform.UAP/Resources.xaml

@@ -318,7 +318,7 @@
         <uwp:EntryCellTextBox IsEnabled="{Binding IsEnabled}" Header="{Binding}" Text="{Binding Text, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" TextAlignment="{Binding HorizontalTextAlignment,Converter={StaticResource HorizontalTextAlignmentConverter}}" PlaceholderText="{Binding Placeholder}"  InputScope="{Binding Keyboard,Converter={StaticResource KeyboardConverter}}" HorizontalAlignment="Stretch">
 			<uwp:EntryCellTextBox.HeaderTemplate>
 				<DataTemplate>
-					<TextBlock Text="{Binding Label}" Style="{ThemeResource BaseTextBlockStyle}" Foreground="{Binding LabelColor, Converter={StaticResource ColorConverter}, ConverterParameter=DefaultTextForegroundThemeBrush}" />
+                    <TextBlock Text="{Binding Label}" IsHitTestVisible="False" Style="{ThemeResource BaseTextBlockStyle}" Foreground="{Binding LabelColor, Converter={StaticResource ColorConverter}, ConverterParameter=DefaultTextForegroundThemeBrush}" />
 				</DataTemplate>
 			</uwp:EntryCellTextBox.HeaderTemplate>
 		</uwp:EntryCellTextBox>