Drag and drop tabs in Windows Forms Tabbed Form (SfTabbedForm)

3 Sep 2020 / 2 minutes to read

Tabbed Form allows move the tabs from one position to another position by dragging the corresponding tab. This can be done by setting the TabbedFormControl.AllowDraggingTabs property to true.

tabbedFormControl.AllowDraggingTabs = true;
tabbedFormControl.AllowDraggingTabs = True

Winforms showing the drag and drop in tabbed form

Cancel tab dragging

Dragging a particular tab in TabbedForm can be canceled by handling the TabDragging event by setting e.Cancel to true when e.Action is TabDraggingAction.DragStarting.

this.TabbedFormControl.TabDragging += OnTabDragging;

private void OnTabDragging(object sender, TabDraggingEventArgs e)
{
    if (e.From == 1 && e.Action == TabDraggingAction.DragStarting)
        e.Cancel = true;
}
AddHandler TabbedFormControl.TabDragging, AddressOf OnTabDragging

Private Sub OnTabDragging(ByVal sender As Object, ByVal e As TabDraggingEventArgs)
	If e.From = 1 AndAlso e.Action = TabDraggingAction.DragStarting Then
		e.Cancel = True
	End If
End Sub

Cancel tab reordering

Re-ordering a tab to a particular position can be canceled by handling TabDragging event by setting e.Cancel to true when e.Action is TabDraggingAction.DragDropping.

this.TabbedFormControl.TabDragging += OnTabDragging;

private void OnTabDragging(object sender, TabDraggingEventArgs e)
{
    if (e.To == 1 && e.Action == TabDraggingAction.DragDropping)
        e.Cancel = true;
}
AddHandler TabbedFormControl.TabDragging, AddressOf OnTabDragging

Private Sub OnTabDragging(ByVal sender As Object, ByVal e As TabDraggingEventArgs)
	If e.To = 1 AndAlso e.Action = TabDraggingAction.DragDropping Then
		e.Cancel = True
	End If
End Sub