关于XML 未将对象引用到实例解决方法

2012-06-06

关于XML 未将对象引用到实例XML文件?xml version1.0 encodingutf-8 ?- typeA version1.0cha

关于XML 未将对象引用到实例
XML文件
<?xml version="1.0" encoding="utf-8" ?>
- <typeA version="1.0">
<channelName>北京电视台</channelName>
- <tvProgramTable>
- <tvProgram>
<playTime>2009-9-29 06:02</playTime>
- 
<meridien>早间档</meridien>
- 
<programName>重播：国际双行线</programName>
- 
<path>c:\a.wma</path>
- 
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 07:00</playTime>
- 
<meridien>早间档</meridien>
- 
<programName>北京您早</programName>
- 
<path>C:\New Stories (Highway Blues).wma</path>
- 
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 09:02</playTime>
- 
<meridien>早间档</meridien>
- 
<programName>重播《红星剧场》32集剧：勇者无敌（31）</programName>
- 
<path>**</path>
- 
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 09:58</playTime>
<meridien>早间档</meridien>
<programName>重播《红星剧场》32集剧：勇者无敌（32）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 11:15</playTime>
<meridien>午间档</meridien>
<programName>重播：专题片：我爱你，中国（14）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 11:58</playTime>
<meridien>午间档</meridien>
<programName>身边</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 12:30</playTime>
<meridien>午间档</meridien>
<programName>特别关注</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 13:05</playTime>
<meridien>午间档</meridien>
<programName>天下天天谈</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 13:40</playTime>
<meridien>午间档</meridien>
<programName>《玫瑰剧场》55集剧：闯关东中篇（21）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 14:32</playTime>
<meridien>午间档</meridien>
<programName>《玫瑰剧场》55集剧：闯关东中篇（22）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 15:27</playTime>
<meridien>下午档</meridien>
<programName>《玫瑰剧场》55集剧：闯关东中篇（23）</programName>

<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 16:19</playTime>
<meridien>下午档</meridien>
<programName>《玫瑰剧场》55集剧：闯关东中篇（24）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 17:31</playTime>
<meridien>下午档</meridien>
<programName>法治进行时</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 18:00</playTime>
<meridien>晚间档</meridien>
<programName>新闻晚高峰</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 18:30</playTime>
<meridien>晚间档</meridien>
<programName>北京新闻</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 18:56</playTime>
<meridien>晚间档</meridien>
<programName>天气预报</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 19:00</playTime>
<meridien>晚间档</meridien>
<programName>转播CCTV新闻联播</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 19:31</playTime>
<meridien>晚间档</meridien>
<programName>看气象</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 19:40</playTime>
<meridien>晚间档</meridien>
<programName>专题片：我爱你，中国（15）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 20:22</playTime>
<meridien>晚间档</meridien>
<programName>《爸妈都是老党员》首播庆典</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 21:21</playTime>
<meridien>晚间档</meridien>
<programName>《红星剧场》38集剧：咱爸咱妈六十年（1）</programName>
<path>**</path>
</tvProgram>
- <tvProgram>
<playTime>2009-9-29 23:25</playTime>
<meridien>晚间档</meridien>
<programName>重播文艺：花样年华歌舞大赛（5）</programName>
<path>**</path>
</tvProgram>
</tvProgramTable>
</typeA>

我的C#代码
public class ChannelManager : ChannelBase
{
public ChannelManager()
{
this.fullChannel = new Dictionary<string, ChannelBase>();
}
/// <summary>
/// 对象序列化结果 /// </summary>
private SavingInfo seria = new SavingInfo();
public SavingInfo Seria
{
get { return seria; }
}
/// <summary>
/// 全部频道
/// </summary>

private Dictionary<string, ChannelBase> fullChannel;
public Dictionary<string, ChannelBase> FullChannel
{
get
{
return fullChannel;
}
}
public override void Fetch()
{
}

public void LoadChannel()
{
this.fullChannel.Clear();
XmlDocument myXml = new XmlDocument();
myXml.Load("files/FullChannels.xml");
XmlNode enginner = myXml.DocumentElement;
int dd = enginner.ChildNodes.Count;
TvProgram tp = new TvProgram();
foreach (XmlNode item in enginner.ChildNodes)
{
this.ChannelName = item["tvChannel"].InnerText;
}

XmlDocument typeA = new XmlDocument();
typeA.Load("files/北京电视台.xml");
XmlNode xn = typeA.DocumentElement;
foreach (XmlNode item in xn.ChildNodes)
{
string name=item["meridien"].InnerText; //这里报错，未将对象引用到实例
tp.Median = name;
}
}
}
}

上面的channelManager继承此类
public abstract class ChannelBase
{
#region 属性

/// <summary>
/// 频道名称
/// </summary>
private string channelName;
public string ChannelName
{
get { return channelName; }
set { channelName = value; }
}
/// <summary>
/// 频道路径
/// </summary>
private string path;
public string Path
{
get { return path; }
set { path = value; }
}
/// <summary>
/// 节目列表
/// </summary>
private List<TvProgram> programList;
public List< TvProgram> ProgramList
{
get { return programList; }
set { this.programList = value; }
}
#endregion

public abstract void Fetch();

}

这个是我要赋值的类
public class TvProgram
{
#region 属性

/// <summary>
/// 播出时间
/// </summary>
private DateTime playTime;
public DateTime PlayTime
{
get { return playTime; }
set { playTime = value; }
}
/// <summary>
/// 时段
/// </summary>
private string median;
public string Median
{
get { return median; }
set { median = value; }
}
/// <summary>
/// 名称
/// </summary>
private string programName;
public string ProgramName
{
get { return programName; }
set { programName = value; }
}
/// <summary>
/// 文件路径
/// </summary>
private string filePath;

public string FilePath
{
get { return filePath; }
set { filePath = value; }
}
#endregion

}

代码有点多，求高手指点，纠结了两三个小时，再不解决我要到旁边自宫去了 T_T .

[解决办法]

C# code

 foreach (XmlNode item in xn.ChildNodes)  {  string name=item["meridien"].InnerText; //这里报错，未将对象引用到实例  tp.Median = name;  }调试这段代码，item里面根本就没有meridien这个节点，你自己看看就知道，，，参考XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load("Config.xml");            XmlNodeList nodeList = xmlDoc.SelectSingleNode("setup").ChildNodes;//获取bookstore节点的所有子节点            foreach (XmlNode xn in nodeList)//遍历所有子节点            {                XmlElement xe = (XmlElement)xn;//将子节点类型转换为XmlElement类型                XmlNodeList nls = xe.ChildNodes;//继续获取xe子节点的所有子节点                foreach (XmlNode xn1 in nls)//遍历                {                    XmlElement xe2 = (XmlElement)xn1;//转换类型}

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