I don't know of any built-in methods to disable the selecting of weekend
dates, but here is a simple idea that might accomplish the same thing:
1. Set the properties of the WeekendDayStyle so that the weekends appear
invisible by making the BackColor and ForeColor the same, as follows:
<asp:Calendar id="Calendar1" runat="server">
<WeekendDayStyle ForeColor="White" BackColor="White"></WeekendDayStyle>
</asp:Calendar>
2. Write an event handler for the SelectionChanged event that will display
an error or message letting the user know they have chosen an invalid date
when they choose a weekend. Here is some simple code of mine (my code simply
displays whether it is a weekend or weekday, you will want to custumize the
code for your purposes):
Private Sub Calendar1_SelectionChanged(ByVal sender As System.Object, ByVal
e As System.EventArgs) Handles Calendar1.SelectionChanged
If Calendar1.SelectedDate.DayOfWeek = DayOfWeek.Saturday OrElse
Calendar1.SelectedDate.DayOfWeek = DayOfWeek.Sunday Then
lblDayType.Text = "Weekend"
Else
lblDayType.Text = "Weekday"
End If
End Sub
If you plan on using validation on your page, you may want to use a
CustomValidator to do this instead (the If condition would still be the
same, you would simply be setting the args.IsValid property instead of
displaying a message).
Good Luck!
