C# 对IEnumerable类进行XML反序列化时出错
我正在尝试将serial和deresial HistoryRoot类转换为以下XML格式:C# 对IEnumerable类进行XML反序列化时出错,c#,xml,xml-serialization,xml-deserialization,C#,Xml,Xml Serialization,Xml Deserialization,我正在尝试将serial和deresial HistoryRoot类转换为以下XML格式: <?xml version="1.0"?> <HistoryRoot xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Files> <HistoryItem d="2015-06-21T17:40:4
<?xml version="1.0"?>
<HistoryRoot xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Files>
<HistoryItem d="2015-06-21T17:40:42" s="file:///D:\cars.txt" />
</Files>
<Folders>
<HistoryItem d="2015-06-21T17:40:42" s="D:\fc\Cars" />
</Folders>
</HistoryRoot>
“反映类型“History.HistoryRoot.”的错误。“System.Exception{System.InvalidOperationException}如何修复此错误?谢谢! 为了序列化或反序列化使用实现
IEnumerable
的类,您的类必须具有Add
方法。从:
XmlSerializer对实现IEnumerable或ICollection的类给予特殊处理。实现IEnumerable的类必须实现接受单个参数的公共Add方法。Add方法的参数的类型必须与从GetEnumerator返回的值的当前属性返回的类型相同,或者是该类型的基之一
即使从不反序列化而只序列化,也必须使用此方法,因为XmlSerializer
同时为序列化和反序列化生成运行时代码
该方法实际上不必为序列化成功而工作,它只需要存在:
(当然,要使反序列化成功,必须实现该方法。)虽然sbc的答案是正确的,我接受了,但我现在将
HistoryList
类更改为更简单:
public class HistoryList : List<HistoryItem> // <-- Add List<HistoryItem>
{
[XmlIgnore]
public SortedList<DateTime, string> sl;
[XmlIgnore]
public int max;
[XmlIgnore]
public ComboBox c;
}
谢谢你的帮助,我现在修好了:)
using (FileStream fs = new FileStream("filepath.xml", FileMode.Open))
{
XmlSerializer serializer = new XmlSerializer(typeof(HistoryRoot));
HistoryRoot h = (HistoryRoot)serializer.Deserialize(fs);
}
public void Add(object obj)
{
throw new NotImplementedException();
}
public class HistoryList : List<HistoryItem> // <-- Add List<HistoryItem>
{
[XmlIgnore]
public SortedList<DateTime, string> sl;
[XmlIgnore]
public int max;
[XmlIgnore]
public ComboBox c;
}
[Serializable]
public class HistoryRoot
{
public HistoryList
Files = new HistoryList
{
sl = new SortedList<DateTime, string>(),
//list = new List<HistoryItem>(), <-- Remove this line
max = 500,
c = program.M.qFile
},
Folders = new HistoryList
{
sl = new SortedList<DateTime, string>(),
//list = new List<HistoryItem>(), <-- Remove this line
max = 100,
c = program.M.qFolder
},
}