How to set the backcolor for all appointment dates in calendar in WinForms ScheduleControl?

this.scheduleControl1.Calendar.CalenderGrid.PrepareViewStyleInfo += new Syncfusion.Windows.Forms.Grid.GridPrepareViewStyleInfoEventHandler(CalenderGrid_PrepareViewStyleInfo);
// to apply the style for appointment dates
void CalenderGrid_PrepareViewStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.GridPrepareViewStyleInfoEventArgs e)
{
   DateTime dt;
   if (e.Style.Text.Length > 0 && DateTime.TryParse(e.Style.Text, out dt))
   {
      GridControl grid = sender as GridControl;
      // to get appointment date from the datasource
      IScheduleDataProvider dataProvider = this.scheduleControl1.DataSource;
      IScheduleAppointmentList list = dataProvider.GetScheduleForDay(dt);
      if (list.Count > 0 && (e.RowIndex != 0 && e.RowIndex !=8) )
      {
         // to apply the color for appointment
         e.Style.BackColor = Color.Red;
      }
   }
}

AddHandler scheduleControl1.Calendar.CalenderGrid.PrepareViewStyleInfo, AddressOf CalenderGrid_PrepareViewStyleInfo
‘ to apply the style for appointment dates
Private Sub CalenderGrid_PrepareViewStyleInfo(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.GridPrepareViewStyleInfoEventArgs)
    Dim dt As DateTime
    If e.Style.Text.Length > 0 AndAlso DateTime.TryParse(e.Style.Text, dt) Then
       Dim grid As GridControl = TryCast(sender, GridControl)
       ' to get appointment date from the datasource
       Dim dataProvider As IScheduleDataProvider = Me.scheduleControl1.DataSource
       Dim list As IScheduleAppointmentList = dataProvider.GetScheduleForDay(dt)
       If list.Count > 0 AndAlso (e.RowIndex <> 0 AndAlso e.RowIndex <> 8) Then
          'to apply the color for appointment
          e.Style.BackColor = Color.Red
       End If
    End If
End Sub