Question

关于C# 序列化和反序列化的问题

类XMLtest：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;

namespace XML
{
[Serializable]
[XmlType("SerializabelTest")]
public class XMLtest
{
[XmlElement("test1")]
public string test1 { get; set; }

[XmlElement("test2")]
public string test2 { get; set; }

[XmlElement("test3")]
public string test3 { get; set; }

[XmlElement("test4")]
public string test4 { get; set; }

[XmlArray("tests")]
[XmlArrayItem("test")]
public List<string> tests { get; set; }
}
}

方法：

XMLtest xTest = new XMLtest();
xTest.test1 = "asdfsdf";
xTest.test2 = "sdsdf";
xTest.test3 = "1212";
xTest.test4 = "46454654";

xTest.tests.Add("asdfsadf");//这句话报错，提示“未将对象引用设置到对象的实例。”

XmlSerializer xml = new XmlSerializer(typeof(XMLtest));

FileStream fs = new FileStream(@"c:\t.xml", FileMode.Create);
xml.Serialize(fs,xTest);
fs.Close();

求解，谢谢各位大神

Answer 1

        //加构造函数
        public XMLtest()
        {
            this.tests = new List<string>();
        }