diff --git a/wpf/Gantt/How-To/Restrict-SelectionMode-as-Single.md b/wpf/Gantt/How-To/Restrict-SelectionMode-as-Single.md
index fa2fa83a72..33a642f96d 100644
--- a/wpf/Gantt/How-To/Restrict-SelectionMode-as-Single.md
+++ b/wpf/Gantt/How-To/Restrict-SelectionMode-as-Single.md
@@ -1,38 +1,139 @@
 ---
 layout: post
-title: Restrict SelectionMode as Single | Gantt | Wpf | Syncfusion
-description: This section describes how to restrict the SelectionMode behavior as Single in GanttControl for WPF platform.
+title: Restrict item selection | Gantt | Wpf | Syncfusion
+description: This section describes how to implement the SelectionMode behavior in the Syncfusion Essential Studio WPF Gantt control.
 platform: wpf
 control: Gantt
 documentation: ug
 ---
 
-# Restrict SelectionMode as Single in WPF Gantt
+# Restrict item selection
 
-To restrict the selection mode to single, set the ListBoxSelectionMode options of GanttGrid’s Model in the GanttControl loaded event. 
+To restrict item selection, set the [SelectionMode](https://help.syncfusion.com/cr/wpf/Syncfusion.Windows.Controls.Gantt.GanttControl.html#Syncfusion_Windows_Controls_Gantt_GanttControl_SelectionMode) property of the [GanttControl](https://help.syncfusion.com/cr/wpf/Syncfusion.Windows.Controls.Gantt.GanttControl.html) to [None](https://help.syncfusion.com/cr/wpf/Syncfusion.Windows.Controls.Gantt.GanttSelectionMode.html#Syncfusion_Windows_Controls_Gantt_GanttSelectionMode_None). 
 
 The following codes illustrate this
 
 {% tabs %}
-{% highlight xaml %}
+{% highlight xaml hl_lines="3" %}
 
-…
-<gantt:GanttControl x:Name="Gantt"
+<gantt:GanttControl x:Name="gantt"
                     ItemsSource="{Binding TaskDetails}"
-                    VisualStyle="Metro"
-                    Loaded="Gantt_Loaded">
+                    SelectionMode="None">
+    <gantt:GanttControl.DataContext>
+        <local:ViewModel/>
+    </gantt:GanttControl.DataContext>
 </gantt:GanttControl>
-…
 
 {% endhighlight  %}
-{% highlight c# %}
+{% highlight c# hl_lines="2" %}
 
-…
-private void Gantt_Loaded(object sender, RoutedEventArgs e)
-{
-    this.Gantt.GanttGrid.Model.Options.ListBoxSelectionMode = Syncfusion.Windows.Controls.Grid.GridSelectionMode.One;
-}
-…
+this.gantt.ItemsSource = new ViewModel().TaskCollection;
+this.gantt.SelectionMode = GanttSelectionMode.None;
 
 {% endhighlight  %}
-{% endtabs %}
\ No newline at end of file
+
+{% highlight c# tabtitle="ViewModel.cs" %}
+ public class ViewModel
+ {
+    /// <summary>
+    /// Holds the task collections.
+    /// </summary>
+    private ObservableCollection<TaskDetails> taskCollections;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ViewModel"/> class.
+    /// </summary>
+    public ViewModel()
+    {
+        this.taskCollections = GetData();
+    }
+    
+    /// <summary>
+    /// Gets or sets the appointment item source.
+    /// </summary>
+    /// <value>The appointment item source.</value>
+    public ObservableCollection<TaskDetails> TaskCollection
+    {
+        get
+        {
+            return this.taskCollections;
+        }
+        set
+        {
+            this.taskCollections = value;
+        }
+    }
+
+    /// <summary>
+    /// Method to get the data.
+    /// </summary>
+    /// <returns>The task details</returns>
+    public  ObservableCollection<TaskDetails> GetData()
+    {
+        var taskDetails = new ObservableCollection<TaskDetails>();
+
+        taskDetails.Add(new TaskDetails() { TaskId = 1, TaskName = "Analysis/Planning", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 14), Progress = 40d });
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 2, TaskName = "Identify Components to be Localized", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 5), Progress = 20d }));
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 3, TaskName = "Ensure file localizability", StartDate = new DateTime(2011, 7, 6), FinishDate = new DateTime(2011, 7, 7), Progress = 20d }));
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 4, TaskName = "Identify tools", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 5, TaskName = "Test tools", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 8, 1), Progress = 10d }));
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 6, TaskName = "Develop delivery timeline", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 8, 1), Progress = 10d }));
+        taskDetails[0].Child.Add((new TaskDetails() { TaskId = 7, TaskName = "Analysis Complete", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 8, 10), Progress = 10d }));
+
+        taskDetails.Add(new TaskDetails() { TaskId = 8, TaskName = "Production", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 14), Progress = 40d });
+        taskDetails[1].Child.Add((new TaskDetails() { TaskId = 9, TaskName = "Software Components", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 5), Progress = 20d }));
+        taskDetails[1].Child.Add((new TaskDetails() { TaskId = 10, TaskName = "Localization Component - User Interface", StartDate = new DateTime(2011, 7, 6), FinishDate = new DateTime(2011, 7, 7), Progress = 20d }));
+        taskDetails[1].Child.Add((new TaskDetails() { TaskId = 11, TaskName = "User Assistance Components", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+        taskDetails[1].Child.Add((new TaskDetails() { TaskId = 12, TaskName = "Software components complete", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 7, 19), Progress = 10d }));
+
+        taskDetails.Add(new TaskDetails() { TaskId = 13, TaskName = "Quality Assurance", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 12), Progress = 40d, });
+        taskDetails[2].Child.Add((new TaskDetails() { TaskId = 14, TaskName = "Review project information", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 15), Progress = 20d }));
+        taskDetails[2].Child.Add((new TaskDetails() { TaskId = 15, TaskName = "Localization Component", StartDate = new DateTime(2011, 7, 6), FinishDate = new DateTime(2011, 7, 8), Progress = 20d }));
+        taskDetails[2].Child.Add((new TaskDetails() { TaskId = 16, TaskName = "Localization Component", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+        taskDetails[2].Child.Add((new TaskDetails() { TaskId = 17, TaskName = "Localization Component", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 7, 18), Progress = 10d }));
+
+        taskDetails.Add(new TaskDetails() { TaskId = 18, TaskName = "Beta Testing", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 14), Progress = 40d });
+        taskDetails[3].Child.Add((new TaskDetails() { TaskId = 19, TaskName = "Disseminate completed product", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 5), Progress = 20d }));
+        taskDetails[3].Child.Add((new TaskDetails() { TaskId = 20, TaskName = "Obtain feedback", StartDate = new DateTime(2011, 7, 6), FinishDate = new DateTime(2011, 7, 7), Progress = 20d }));
+        taskDetails[3].Child.Add((new TaskDetails() { TaskId = 21, TaskName = "Modify", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 19), Progress = 10d }));
+        taskDetails[3].Child.Add((new TaskDetails() { TaskId = 22, TaskName = "Test", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 7, 19), Progress = 10d }));
+        taskDetails[3].Child.Add((new TaskDetails() { TaskId = 23, TaskName = "Complete", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 19), Progress = 10d }));
+
+        taskDetails.Add(new TaskDetails() { TaskId = 24, TaskName = "Post-Project Review", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 18), Progress = 40d, });
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 25, TaskName = "Finalize cost analysis", StartDate = new DateTime(2011, 7, 3), FinishDate = new DateTime(2011, 7, 5), Progress = 20d }));
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 26, TaskName = "Analyze performance", StartDate = new DateTime(2011, 7, 6), FinishDate = new DateTime(2011, 7, 7), Progress = 20d }));
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 27, TaskName = "Archive files", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 28, TaskName = "Document lessons learned", StartDate = new DateTime(2011, 7, 14), FinishDate = new DateTime(2011, 7, 18), Progress = 10d }));
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 29, TaskName = "Distribute to team members", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+        taskDetails[4].Child.Add((new TaskDetails() { TaskId = 30, TaskName = "Post-project review complete", StartDate = new DateTime(2011, 7, 10), FinishDate = new DateTime(2011, 7, 14), Progress = 10d }));
+
+        taskDetails[0].Resources = new ObservableCollection<Resource>() { new Resource { ID = 1, Name = "John" }, new Resource { ID = 2, Name = "Neil" } };
+        taskDetails[0].Child[3].Resources = new ObservableCollection<Resource>() { new Resource() { ID = 3, Name = "Peter" } };
+        taskDetails[1].Resources = new ObservableCollection<Resource>() { new Resource() { ID = 4, Name = "David" } };
+
+        taskDetails[0].Child[1].Predecessor.Add(new Predecessor() { GanttTaskIndex = 2, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[0].Child[2].Predecessor.Add(new Predecessor() { GanttTaskIndex = 3, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[0].Child[3].Predecessor.Add(new Predecessor() { GanttTaskIndex = 3, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+
+        taskDetails[1].Child[1].Predecessor.Add(new Predecessor() { GanttTaskIndex = 9, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[1].Child[2].Predecessor.Add(new Predecessor() { GanttTaskIndex = 10, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[1].Child[3].Predecessor.Add(new Predecessor() { GanttTaskIndex = 7, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+
+        taskDetails[2].Child[1].Predecessor.Add(new Predecessor() { GanttTaskIndex = 12, GanttTaskRelationship = GanttTaskRelationship.FinishToFinish });
+        taskDetails[2].Child[2].Predecessor.Add(new Predecessor() { GanttTaskIndex = 12, GanttTaskRelationship = GanttTaskRelationship.FinishToFinish });
+        taskDetails[2].Child[3].Predecessor.Add(new Predecessor() { GanttTaskIndex = 12, GanttTaskRelationship = GanttTaskRelationship.FinishToFinish });
+
+        taskDetails[3].Child[1].Predecessor.Add(new Predecessor() { GanttTaskIndex = 18, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[3].Child[2].Predecessor.Add(new Predecessor() { GanttTaskIndex = 18, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[3].Child[3].Predecessor.Add(new Predecessor() { GanttTaskIndex = 19, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+
+        taskDetails[4].Child[1].Predecessor.Add(new Predecessor() { GanttTaskIndex = 25, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[4].Child[2].Predecessor.Add(new Predecessor() { GanttTaskIndex = 28, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[4].Child[3].Predecessor.Add(new Predecessor() { GanttTaskIndex = 30, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        taskDetails[4].Child[4].Predecessor.Add(new Predecessor() { GanttTaskIndex = 27, GanttTaskRelationship = GanttTaskRelationship.StartToStart });
+        return taskDetails;
+    }
+}
+
+{% endhighlight %}
+{% endtabs %}