How to set empty value to DateTimeField WebControl?

Question

We tried to use DateTime.MaxValue to set empty value for DateTimeField and it works quite nice on our test environment, but we get following exception on some production farms.

Exception: Ticks must be between DateTime.MinValue.Ticks and DateTime.MaxValue.Ticks. Parameter name: ticks, Stack Trace: at System.DateTime..ctor(Int64 ticks) at Microsoft.SharePoint.SPTimeZone.ConvertToUTC(DateTime date, UInt16 tzid) at Microsoft.SharePoint.WebControls.DateTimeField.set_Value(Object value)

Can anyone suggest how we can workaround this?

Answer 1

try handling it with IsDateEmpty property, while saving it. for e.g.

if (!yourDatecontrol.IsDateEmpty)
{
    item["Date"] = yourDatecontrol.SelectedDate;
}
else
{
    item["Date"] = null;
}

Call ClearSelection method for empty value.

yourDatecontrol.ClearSelection();