Updated the README.md file

README.md

@@ -1 +1,86 @@
 **[View document in Syncfusion Xamarin Knowledge base](https://www.syncfusion.com/kb/12267/how-to-conditionally-handle-the-swiping-using-mvvm-in-xamarin-forms-listview-sflistview)**
+
+## Sample
+
+```xaml
+<syncfusion:SfListView x:Name="listView" ItemSpacing="1" AllowSwiping="True" AutoFitMode="Height" SelectionMode="None" ItemsSource="{Binding ContactsInfo}">
+    <syncfusion:SfListView.ItemTemplate >
+        <DataTemplate>
+            <code>
+            . . .
+            . . .
+            <code>
+        </DataTemplate>
+    </syncfusion:SfListView.ItemTemplate>
+
+    <syncfusion:SfListView.LeftSwipeTemplate>
+        <DataTemplate>
+            <Grid BackgroundColor="Black">
+                <Label Text="Left Swipe" TextColor="White" FontAttributes="Bold" VerticalTextAlignment="Center" HorizontalTextAlignment="Center"/>
+            </Grid>
+        </DataTemplate>
+    </syncfusion:SfListView.LeftSwipeTemplate>
+
+    <syncfusion:SfListView.RightSwipeTemplate>
+        <DataTemplate>
+            <Grid BackgroundColor="Black">
+                <Label Text="Right Swipe" TextColor="White" FontAttributes="Bold" VerticalTextAlignment="Center" HorizontalTextAlignment="Center"/>
+                <Grid.GestureRecognizers>
+                    <TapGestureRecognizer Command="{Binding Source={RelativeSource AncestorType={x:Type local:ContactsViewModel}}, Path=TakePhotoCommand}" CommandParameter="{x:Reference listView}"/>
+                </Grid.GestureRecognizers>
+            </Grid>
+        </DataTemplate>
+    </syncfusion:SfListView.RightSwipeTemplate>
+</syncfusion:SfListView>
+
+ViewModel.cs:
+
+public Command<object> SwipeStartedCommand { get; set; }
+
+SwipeStartedCommand = new Command<object>(OnSwipeStarted);
+
+private void OnSwipeStarted(object obj)
+{
+    var args = obj as Syncfusion.ListView.XForms.SwipeStartedEventArgs;
+    if ((args.ItemData as Contacts).BackgroundColor == Color.LightGray)
+    {
+        args.Cancel = true;
+    }
+}
+
+C#:
+
+void OnEvent (object sender, object eventArgs)
+{
+    if (Command == null) {
+        return;
+    }
+
+    object resolvedParameter;
+    if (CommandParameter != null) {
+        resolvedParameter = CommandParameter;
+    } else if (Converter != null) {
+        resolvedParameter = Converter.Convert (eventArgs, typeof(object), AssociatedObject, null);
+    } else {
+        resolvedParameter = eventArgs;
+    }		
+
+    if (Command.CanExecute (resolvedParameter)) {
+        Command.Execute (resolvedParameter);
+    }
+}
+
+static void OnEventNameChanged (BindableObject bindable, object oldValue, object newValue)
+{
+    var behavior = (EventToCommandBehavior)bindable;
+    if (behavior.AssociatedObject == null) {
+        return;
+    }
+
+    string oldEventName = (string)oldValue;
+    string newEventName = (string)newValue;
+
+    behavior.DeregisterEvent (oldEventName);
+    behavior.RegisterEvent (newEventName);
+}
+```