帮助从一个xmlnode移动到另一个同名的xmlnode
本文关键字：xmlnode 移动 另一个 一个 帮助 | 更新日期: 2023-09-27 18:01:23
我试图比较一个属性值到另一个，如果它返回true我什么都不做，如果false然后我添加一些东西。
这是xml或它的一部分。
<tv grabber-info-name="MCE7-digiguide">
<channel id="101" id2="817">
<display-name>BBC 1 West</display-name>
</channel>
<programme channel="101" channel2="817" start="20110626013000 +0000" stop="20110626060000 +0000">
</programme>
<channel id="102" id2="5223">
<display-name>BBC Two</display-name>
</channel>
<programme channel="102" channel2="5223" start="20110626021000 +0000" stop="20110626220000 +0000">
</programme>
</tv>
我正在使用这些方法来比较Jodrell所显示的数据。
MXFDoc类
public void CheckTimes()
{
MXFProgramme previousProg = null;
MXFProgramme nextProg = null;
foreach (MXFProgramme prog in Programmes.OrderBy(p => p.channel))
{
nextProg = prog;
if (previousProg != null)
{
if (previousProg.stopped != nextProg.started)
{
MessageBox.Show(previousProg.stopped +" "+ nextProg.started.ToString() +" "+ previousProg.channel +" "+ nextProg.channel);
}
}
previousProg = prog;
}
}
在MXFProgramme类
public DateTime stopped
{
get
{
string StopString = xProgramme.Attributes.GetNamedItem("stop").Value;
DateTime time = new DateTime(int.Parse(StopString.Substring(0, 4)), int.Parse(StopString.Substring(4, 2)), int.Parse(StopString.Substring(6, 2)), int.Parse(StopString.Substring(8, 2)), int.Parse(StopString.Substring(10, 2)), int.Parse(StopString.Substring(12, 2)));
return time.ToUniversalTime();
}
}
public DateTime started
{
get
{
string StartString = xProgramme.Attributes.GetNamedItem("start").Value;
DateTime time = new DateTime(int.Parse(StartString.Substring(0, 4)), int.Parse(StartString.Substring(4, 2)), int.Parse(StartString.Substring(6, 2)), int.Parse(StartString.Substring(8, 2)), int.Parse(StartString.Substring(10, 2)), int.Parse(StartString.Substring(12, 2)));
return time.ToUniversalTime();
}
}
这实际上工作得很好，我不能弄清楚的一件事是为什么返回的DateTime值是1小时。
下面的代码相当简单和可读。
几乎肯定有一种更巧妙的方法，也许是交错枚举的Zip。
public void CheckTimes
{
MFXProgramme previousProg = null;
MFXProgramme nextProg = null;
foreach (MFXProgramme prog in Programmes.OrderBy(p => p.Start))
{
nextProg = prog;
if (previous != null)
{
if (previous.Stop != next.Start)
{
//Gap
}
}
previousProg = prog;
}
}
class MXFProgramme
{
...
public DateTime Start
{
get
{
return DateTime.Parse(xProgramme.Attributes["start"].Value);
}
}
public DateTime Stop
{
get
{
return DateTime.Parse(xProgramme.Attributes["stop"].Value);
}
}
}
再次感谢Jodrell，有了这段代码，把剩下的代码放在一起就容易多了。
这是我最后的结果:
public void CheckTimes()
{
MXFProgramme previousProg = null;
MXFProgramme nextProg = null;
using (XmlTextWriter writer = new XmlTextWriter("Gaps.xml",Encoding.UTF8))
{
writer.Formatting = Formatting.Indented;
writer.WriteStartDocument();
writer.WriteStartElement("tv");
foreach (var prog in Programmes.OrderBy(p => p.channel))
{
nextProg = prog;
if (previousProg != null)
{
if (previousProg.stopped != nextProg.started)
{
if (previousProg.channel == nextProg.channel)
{
writer.WriteStartElement("programme");
writer.WriteAttributeString("channel", previousProg.channel);
writer.WriteAttributeString("channel2", previousProg.channel2);
writer.WriteAttributeString("start", string.Format("{0:yyyyMMddHHmmss} +0000", previousProg.stopped.ToLocalTime()));
writer.WriteAttributeString("stop", string.Format("{0:yyyyMMddHHmmss} +0000", nextProg.started.ToLocalTime()));
writer.WriteStartElement("title");
writer.WriteString("Channel Off Air");
writer.WriteEndElement();
writer.WriteStartElement("desc");
writer.WriteString("Programmes start again at" + " : " + nextProg.started.ToLocalTime().ToShortTimeString());
writer.WriteEndElement();
writer.WriteStartElement("category");
writer.WriteString("General");
writer.WriteEndElement();
writer.WriteStartElement("length");
writer.WriteAttributeString("units", "minutes");
writer.WriteString(nextProg.started.Subtract(previousProg.stopped).TotalMinutes.ToString());
writer.WriteEndElement();
writer.WriteEndElement();
}
}
}
previousProg = prog;
}
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Close();
StartMXF();
}
}
public void StartMXF()
{
XmlDocument xXMLTVDoc = new XmlDocument();
xXMLTVDoc.Load("Gaps.xml");
XmlNodeList xNodes = xXMLTVDoc.SelectNodes("//tv");
foreach (XmlNode xNode in xNodes)
{
foreach (XmlNode xN in xNode.ChildNodes)
{
if (xN.Name == "programme")
{
MXFProgramme newProg = new MXFProgramme(xN);
Programmes.Add(newProg);
foreach (MXFChannel Chn in Channels)
{
if (Chn.id == newProg.channel)
Chn.Programmes.Add(newProg);
}
if (!SeriesList.Contains(newProg.Series))
SeriesList.Add(newProg.Series);
}
}
}
Programmes.Sort(new ArrayListSort());
WriteMXF();
}