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How to customize the WinForms MonthCalendarAdv dates as Bolded dates?

Customize the MonthCalendarAdv

User can customize the font style of specific dates as Bold. It can be achieved by handling DateQueryCellInfo event. Here we have added the required bolded dates in BoldDateTime list, then check its value with MonthCalenderAdv date cell value in DateQueryCellInfo event. If date value matched, font style of corresponding date changed to bold. The following code demonstrates the same.


private List<DateTime> BoldDateTime = new List<DateTime>();
//Raise the event for Date cell customization
this.monthCalendarAdv1.DateCellQueryInfo += MonthCalendarAdv1_DateCellQueryInfo;
//Add Bold date 
private void MonthCalendarAdv1_DateCellQueryInfo(object sender, Syncfusion.Windows.Forms.Tools.DateCellQueryInfoEventArgs e)
   /// <summary>
   /// check date value is equal for added bold date value
   /// If yes, it shows the date value as bold
   /// </summary>
   if(e.DateValue != null && (!BoldDateTime.Contains(Convert.ToDateTime(e.DateValue))))
      for(int i = 0; i < BoldDateTime.Count; i++)
        if(this.BoldDateTime[i].Date.ToString() == e.DateValue.ToString())
          //enable Bold
          e.Style.Font.Bold = true;


Private BoldDateTime As New List(Of Date)()
'Raise the event for Date cell customization
AddHandler Me.monthCalendarAdv1.DateCellQueryInfo, AddressOf MonthCalendarAdv1_DateCellQueryInfo
'Add Bold date
Private Sub MonthCalendarAdv1_DateCellQueryInfo(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Tools.DateCellQueryInfoEventArgs)
   ''' <summary>
   ''' check date value is equal for added bold date value
   ''' If yes, it shows the date value as bold
   ''' </summary>
   If e.DateValue IsNot Nothing AndAlso (Not    BoldDateTime.Contains(Convert.ToDateTime(e.DateValue))) Then
     For i As Integer = 0 To BoldDateTime.Count - 1
       If Me.BoldDateTime(i).Date.ToString() = e.DateValue.ToString() Then
         'enable Bold
         e.Style.Font.Bold = True
       End If
     Next i
   End If
End Sub



Show the customized date as bold



C#:  MonthCalendarSample

VB:  MonthCalendarSample

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