public void AddWarning(MdpImportWarning message)
{
if (_warnings == null)
{
_warnings = new ArrayList();
}
_warnings.Add(message);
}
public void AddWarning(MdpImportWarning message)
{
if (_warnings == null)
_warnings = new ArrayList();
_warnings.Add(message);
}
protected virtual object ConvertToFile(object value, MetaDataType dest, string destFieldName, int rowIndex, out MdpImportWarning[] warnings)
{
warnings = null;
if (OnConvertToFile != null)
{
MetaObjectResolverEventArgs e = new MetaObjectResolverEventArgs(value, destFieldName, dest);
OnConvertToFile(this, e);
warnings = e.Warnings;
return e.Value;
}
else return null;
}
protected virtual object ConvertDataType(Type source, MetaDataType destination, object value, string destFieldName, bool allowNull, int rowIndex, out MdpImportWarning[] warnings)
{
warnings = null;
switch (destination)
{
case MetaDataType.BigInt:
return Convert.ChangeType(value, typeof(Int64));
case MetaDataType.Binary:
case MetaDataType.Image:
case MetaDataType.VarBinary:
return Convert.ChangeType(value, typeof(byte[])); // TODO: does it work?
case MetaDataType.Bit:
case MetaDataType.Boolean:
switch (value.ToString().ToLower())
{
case "true":
return true;
case "false":
return false;
default:
try
{
return (int.Parse(value.ToString()) != 0);
}
catch
{
}
return false;
}
case MetaDataType.Char:
case MetaDataType.NChar:
case MetaDataType.NText:
case MetaDataType.NVarChar:
case MetaDataType.UniqueIdentifier:
case MetaDataType.Text:
case MetaDataType.VarChar:
case MetaDataType.Sysname:
case MetaDataType.ShortString:
case MetaDataType.LongString:
case MetaDataType.Url:
case MetaDataType.Email:
case MetaDataType.LongHtmlString:
return value.ToString();
case MetaDataType.DateTime:
return Convert.ChangeType(value, typeof(DateTime));
case MetaDataType.Decimal:
case MetaDataType.Numeric:
return Convert.ChangeType(value, typeof(Decimal));
case MetaDataType.Money:
case MetaDataType.SmallMoney: // TODO:?? + temporal code for currency symbol
if (value is string)
return Convert.ChangeType(value.ToString().TrimStart('$'), typeof(Decimal));
else
return Convert.ChangeType(value, typeof(Decimal));
case MetaDataType.Float:
return Convert.ChangeType(value, typeof(Double));
case MetaDataType.Int:
case MetaDataType.Integer:
return Convert.ChangeType(value, typeof(Int32));
case MetaDataType.Real:
return Convert.ChangeType(value, typeof(Single));
case MetaDataType.SmallDateTime:
return Convert.ChangeType(value, typeof(DateTime)); // TODO:??
case MetaDataType.SmallInt:
return Convert.ChangeType(value, typeof(Int16));
case MetaDataType.TinyInt:
return Convert.ChangeType(value, typeof(Byte));
case MetaDataType.Date:
return Convert.ChangeType(value, typeof(DateTime));
case MetaDataType.DictionaryMultivalue:
case MetaDataType.EnumMultivalue:
value = ConvertToDictionary(value, destination, destFieldName, rowIndex, out warnings);
if (value == null && !allowNull)
throw new Mediachase.MetaDataPlus.Import.InvalidCastException(destination.ToString(), source.ToString());
break;
case MetaDataType.DictionarySingleValue:
case MetaDataType.EnumSingleValue:
value = ConvertToDictionary(value, destination, destFieldName, rowIndex, out warnings);
if (value == null && !allowNull)
throw new Mediachase.MetaDataPlus.Import.InvalidCastException(destination.ToString(), source.ToString());
break;
case MetaDataType.File:
case MetaDataType.ImageFile:
value = ConvertToFile(value, destination, destFieldName, rowIndex, out warnings);
if (value == null && !allowNull)
throw new Mediachase.MetaDataPlus.Import.InvalidCastException(destination.ToString(), source.ToString());
break;
default:
throw new Mediachase.MetaDataPlus.Import.InvalidCastException(destination.ToString(), source.ToString());
}
return value;
}
