private PropertyValue GetSupportedValue(bool isNull, PropertyMapping mapper, DataRow row)
{
if (mapper.Property.Type == typeof(Guid))
{
return(isNull ? new Guid?() : new Guid(row[mapper.Index].ToString()));
}
var typeCode = Type.GetTypeCode(mapper.Property.Type.GetNonNullableType());
switch (typeCode)
{
case TypeCode.Boolean:
return(isNull ? new bool?() : Convert.ToBoolean(row[mapper.Index]));
case TypeCode.Char:
return(isNull ? new char?() : Convert.ToChar(row[mapper.Index]));
case TypeCode.Byte:
return(isNull ? new byte?() : Convert.ToByte(row[mapper.Index]));
case TypeCode.Int16:
return(isNull ? new short?() : Convert.ToInt16(row[mapper.Index]));
case TypeCode.Int32:
return(isNull ? new int?() : Convert.ToInt32(row[mapper.Index]));
case TypeCode.Int64:
return(isNull ? new long?() : Convert.ToInt64(row[mapper.Index]));
case TypeCode.Decimal:
return(isNull ? new decimal?() : Convert.ToDecimal(row[mapper.Index]));
case TypeCode.Double:
return(isNull ? new double?() : Convert.ToDouble(row[mapper.Index]));
case TypeCode.String:
return(isNull ? string.Empty : Convert.ToString(row[mapper.Index]));
case TypeCode.DateTime:
return(isNull ? new DateTime?() : Convert.ToDateTime(row[mapper.Index]));
case TypeCode.Single:
return(isNull ? new float?() : Convert.ToSingle(row[mapper.Index]));
default:
return(PropertyValue.NewValue(row[mapper.Index], null));
}
}
private PropertyValue GetConvertedValue(PropertyMapping mapper, bool isNull, Func <int, object> funcGetValue)
{
var converter = ConvertManager.GetConverter(mapper.Property.Type);
if (converter == null)
{
throw new NotSupportedException(SR.GetString(SRKind.UnableConvertComplexType, mapper.Property.Type));
}
if (isNull)
{
return(PropertyValue.Empty);
}
var dbType = mapper.Property.Info.DataType ?? DbType.String;
return(PropertyValue.NewValue(converter.ConvertFrom(funcGetValue(mapper.Index), dbType)));
}
private PropertyValue GetPropertyValue(PropertyMapping mapper, Func <int, bool> funcIsNull, Func <int, object> funcGetValue, Func <bool, PropertyValue> funcRead)
{
var isNull = funcIsNull(mapper.Index);
if (mapper.Property.Type.IsArray &&
mapper.Property.Type.GetElementType() == typeof(byte))
{
return(isNull ? new byte[0] : (byte[])funcGetValue(mapper.Index));
}
if (mapper.Property.Type.IsEnum)
{
return(GetEnumValue(mapper, isNull, funcGetValue));
}
if (PropertyValue.IsSupportedType(mapper.Property.Type))
{
return(funcRead(isNull));
}
return(GetConvertedValue(mapper, isNull, funcGetValue));
}