public static DbTime?SafeParseNullableTime(object value, object fieldInfo = null,
DateTimeKind kind = DateTimeKind.Utc, DbTimeStyle style = DbTimeStyle.Full)
{
if (value != null && !(value is DBNull))
{
try
{
string timeString;
switch (Type.GetTypeCode(value.GetType()))
{
case TypeCode.Empty:
return(null);
case TypeCode.String:
timeString = (string)value;
break;
case TypeCode.Int32:
return(new DbTime(Convert.ToInt32(value), kind));
case TypeCode.Int64:
return(new DbTime(Convert.ToInt32(value), kind));
case TypeCode.UInt32:
return(new DbTime(Convert.ToInt32(value), kind));
case TypeCode.UInt64:
return(new DbTime(Convert.ToInt32(value), kind));
case TypeCode.DateTime:
var dt = (DateTime)value;
return((DbTime)dt);
default:
timeString = value.ToString();
break;
}
timeString = timeString.Trim();
if (String.IsNullOrEmpty(timeString))
{
return(null);
}
if (timeString == "0")
{
return(DbTime.MinValue);
}
return(DbDateTime.ParseTime(timeString, kind, style));
}
catch (Exception ex)
{
throw FormattedException(ex, value, value.GetType(), typeof(DbDate), fieldInfo);
}
}
return(null);
}
public static DbDate?SafeParseNullableDate(object value, object fieldInfo = null)
{
if (value != null && !(value is DBNull))
{
try
{
string dateString;
switch (Type.GetTypeCode(value.GetType()))
{
case TypeCode.Empty:
return(null);
case TypeCode.String:
dateString = (string)value;
break;
case TypeCode.Int32:
return(new DbDate(Convert.ToInt32(value)));
case TypeCode.Int64:
return(new DbDate(Convert.ToInt32(value)));
case TypeCode.UInt32:
return(new DbDate(Convert.ToInt32(value)));
case TypeCode.UInt64:
return(new DbDate(Convert.ToInt32(value)));
case TypeCode.DateTime:
var date = (DateTime)value;
return((DbDate)date);
default:
dateString = (string)value;
break;
}
dateString = dateString.Trim();
if (String.IsNullOrEmpty(dateString))
{
return(null);
}
if (dateString == "0")
{
return(DbDate.MinValue);
}
return(DbDateTime.ParseDate(dateString.Trim()));
}
catch (Exception ex)
{
throw FormattedException(ex, value, value.GetType(), typeof(DbDate), fieldInfo);
}
}
return(null);
}
public static DateTime?SafeParseNullableDateTime(object value, object fieldInfo = null,
DateTimeKind kind = DateTimeKind.Utc)
{
if (value != null && !(value is DBNull))
{
try
{
string dateTimeString;
switch (Type.GetTypeCode(value.GetType()))
{
case TypeCode.Empty:
return(null);
case TypeCode.String:
dateTimeString = (string)value;
break;
case TypeCode.Int32:
dateTimeString = Convert.ToInt32(value).ToString(Invariant);
break;
case TypeCode.UInt32:
dateTimeString = Convert.ToUInt32(value).ToString(Invariant);
break;
case TypeCode.Int64:
return(new DateTime(Convert.ToInt64(value), kind));
case TypeCode.UInt64:
return(new DateTime(Convert.ToInt64(value), kind));
case TypeCode.DateTime:
//TODO: review if we have to use DateTimeKind to transform - this info is DB provider specific stored or not...
return((DateTime)value);
default:
dateTimeString = value.ToString();
break;
}
dateTimeString = dateTimeString.Trim();
if (String.IsNullOrEmpty(dateTimeString))
{
return(null);
}
if (dateTimeString == "0")
{
return(DateTime.MinValue);
}
return(DbDateTime.ParseDateTime(dateTimeString, kind));
}
catch (Exception ex)
{
throw FormattedException(ex, value, value.GetType(), typeof(DateTime), fieldInfo);
}
}
return(null);
}
