Notify the selected tab changes in TabbedMDIManager In TabbedMDIManager, TabControlAdv has been used internally to display the items in Tabbed structure. SelectedIndexChanged event of TabControlAdv is used to notify the tab selection in TabbedMDIManager. The following code snippet demonstrates the same, C# public partial class Form1 : Form { public Form1() { InitializeComponent(); this.tabbedMDIManager1.TabControlAdded += TabbedMDIManager1_TabControlAdded; } private TabControlAdv tabcontrol = null; private void TabbedMDIManager1_TabControlAdded(object sender, Syncfusion.Windows.Forms.Tools.TabbedMDITabControlEventArgs args) { tabcontrol = args.TabControl; tabcontrol.SelectedIndexChanged += Tabcontrol_SelectedIndexChanged; } private void Tabcontrol_SelectedIndexChanged(object sender, EventArgs e) { Console.WriteLine(tabcontrol.SelectedTab.Text + "is Selected"); } } VB Partial Public Class Form1 Inherits Form Public Sub New() InitializeComponent() AddHandler Me.tabbedMDIManager1.TabControlAdded, AddressOf TabbedMDIManager1_TabControlAdded End Sub Private tabcontrol As TabControlAdv = Nothing Private Sub TabbedMDIManager1_TabControlAdded(ByVal sender As Object, ByVal args As Syncfusion.Windows.Forms.Tools.TabbedMDITabControlEventArgs) tabcontrol = args.TabControl AddHandler tabcontrol.SelectedIndexChanged, AddressOf Tabcontrol_SelectedIndexChanged End Sub Private Sub Tabcontrol_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Console.WriteLine(tabcontrol.SelectedTab.Text + "is Selected") End Sub End Class Samples: C#: https://www.syncfusion.com/downloads/support/directtrac/general/ze/CSharp_TabbedMDIManager_Notify_event752758519.zip VB: https://www.syncfusion.com/downloads/support/directtrac/general/ze/VB_TabbedMDIManager_Notify_event587455476.zip
