How to fix Operator '&' is not defined for types 'Date()' and 'Date()'?

Question

im doing a programming project and have been stumped on how to add more dates to the bolded dates in a monthly calendar.

Private Sub BTN_Submit_Click(sender As Object, e As EventArgs) Handles BTN_Submit.Click
    Dim format As String = "dd/MM/yyyy"
    Dim boldeddates() As Date = FRM_EventsCalendar.MonthCalendar1.BoldedDates()
    Dim dateTime As String = TXT_Date.Text
    Dim dt As DateTime = Convert.ToDateTime(dateTime)
    Dim str As String = dt.ToString(format)
    Dim specialdate() As Date = {str}

    **FRM_EventsCalendar.MonthCalendar1.BoldedDates = specialdate & boldeddates**

    MsgBox("Date Added")
End Sub

i am trying to add them together so that instead of replacing the variables they both are bolded. i have tried "&" and "," however none of these work. i was just wondering how this could be solved?

thx for any help :).

Answer 1

Use MonthCalendar.AddBoldedDate

FRM_EventsCalendar.MonthCalendar1.AddBoldedDate(specialdate)