Updated the README.md file

README.md

@@ -1 +1,79 @@
 **[View document in Syncfusion .NET MAUI Knowledge Base](https://www.syncfusion.com/kb/13443/how-to-hide-the-line-separator-with-grouping-in-net-maui-listview-sflistview)**
+
+## Sample
+
+```xaml
+<ContentPage.Resources>
+    <ResourceDictionary>
+        <local:SeparatorVisibilityConverter x:Key="VisibilityConverter"/>
+    </ResourceDictionary>
+</ContentPage.Resources>
+
+<ListView:SfListView x:Name="listView"
+                        ItemSize="70" 
+                        GroupHeaderSize="50"
+                        SelectionMode="Single"
+                        IsStickyGroupHeader="True"
+                        ItemsSource="{Binding ContactsInfo}"
+                        AllowGroupExpandCollapse="True">
+
+    <ListView:SfListView.GroupHeaderTemplate>
+        <DataTemplate>
+            <StackLayout BackgroundColor="#E4E4E4">
+                <Label Text="{Binding Key}" FontSize="20" FontAttributes="Bold" TextColor="#4d4d4d" Padding="10,0,0,0" VerticalOptions="Center" HorizontalOptions="Start"/>
+            </StackLayout>
+        </DataTemplate>
+    </ListView:SfListView.GroupHeaderTemplate>
+
+    <ListView:SfListView.ItemTemplate>
+        <DataTemplate>
+            <code>
+            . . .
+            . . .
+            <code>
+        </DataTemplate>
+    </ListView:SfListView.ItemTemplate>
+</ListView:SfListView>
+
+C#:
+
+ListView.DataSource.GroupDescriptors.Add(new GroupDescriptor()
+{
+    PropertyName = "ContactName",
+    KeySelector = (object obj1) =>
+    {
+        var item = (obj1 as ListViewContactInfo);
+        return item.ContactName[0].ToString();
+    },
+});
+
+public class SeparatorVisibilityConverter : IValueConverter
+{
+
+    SfListView ListView;
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        ListView = parameter as SfListView;
+
+        if (value == null || ListView.DataSource.Groups.Count == 0)
+            return false;
+
+        var groupresult = GetGroup(value);
+        var list = groupresult.Items.ToList<object>().ToList();
+        var item = list[list.Count - 1] as ListViewContactInfo;
+
+        return item != value;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+
+    private GroupResult GetGroup(object itemData)
+    {
+        var item = itemData as ListViewContactInfo;
+        return ListView.DataSource.DisplayItems.FirstOrDefault(x => (x is GroupResult group) && group.Key.ToString() == item.ContactName[0].ToString()) as GroupResult;
+    }
+}
+```