LINQ到XML来POCO对象 [英] LINQ to XML to POCO object
本文介绍了LINQ到XML来POCO对象的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我已经得到了我想要的转向POCO对象的列表的XML文件。
I've got an XML file that I want to turn in to a list of POCO objects.
我有以下工作代码来读取XML并从中创建对象。我只是想检查,这是做到这一点的好办法,我不会错过任何技巧。 。特别是关于嵌套Linq查询
I have the following working code to read the XML and create objects from it. I just want to check this is a good way to do this and I'm not missing any tricks. In particular with regards to the nested Linq query.
XDocument xmlDoc = XDocument.Load(path);
var q = from file in xmlDoc.Descendants("File")
select new ImportDefinition()
{
Name = file.Attribute("Name").Value,
TypeName = file.Attribute("TypeName").Value,
ColumnMappings =
(
from map in file.Descendants("ColumnMap")
select new ColumnMap()
{
DatabaseColumn = new Column()
{
Name = map.Element("DatabaseColumn").Attribute("Name").Value
}
}
).ToList<ColumnMap>()
};
List<ImportDefinition> def = q.ToList<ImportDefinition>();
感谢
Thanks
推荐答案
也许尝试显式转换
public class ColumnMap
{
public static explicit operator ColumnMap(XElement xElem)
{
return new ColumnMap()
{
DatabaseColumn = new Column()
{
Name = xElem.Element("DatabaseColumn").Attribute("Name").Value
}
};
}
}
public class ImportDefinition
{
public static explicit operator ImportDefinition(XElement xElem)
{
return new ImportDefinition()
{
Name = (string)xElem.Attribute("Name"),
TypeName = (string)xElem.Attribute("TypeName"),
Size = (int)xElem.Attribute("Size"),
LastModified = (DateTime?)xElem.Attribute("LastModified"),
ColumnMappings = xElem.Descendants("ColumnMap").Select(xelem => (ColumnMap)xelem).ToList()
};
}
}
然后使用它像这样:
Then use it like so:
XDocument xmlDoc = XDocument.Load(path);
List<ImportDefinition> importDefinitions = xmlDoc.Descendants("File").Select(xElem => (ImportDefinition)xElem).ToList()
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