Удалить минимальное и максимальное значения datetimepicker для

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Activated   Event   Time    Duration    Thread    
    Exception thrown: 'System.ArgumentOutOfRangeException' in System.Windows.Forms.dll ("Value of '1.1.0001. 00:00:00' is not valid for 'Value'. 'Value' should be between 'MinDate' and 'MaxDate'.")   14.33s      [17640] <No Name> 

Что я уже пробовал:

// don't convert it to datetime (as you said, it may be null)
                var stringValue = (prijava_radnikaDataGridView.SelectedRows[0].Cells["dataGridViewTextBoxColumn3"].Value);


                 var dateValue = string.IsNullOrEmpty(Convert.ToString(stringValue)) ? DateTime.MinValue : Convert.ToDateTime("2018-01-01 00:00:00");

               // now, datevalue is the new value for datepicker
                  if (string.IsNullOrEmpty(Convert.ToString(stringValue))) vrijemeodjaveDateTimePicker.Value = dateValue;

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