將MySql查詢保存到XML文件並避免重複

Question

嗨，我有以下c＃代碼，將數據保存到xml文件。

問題是，它不保存我正在尋找的格式的XML，我似乎無法找到一種方法來獲取它。

C＃代碼

string MyConString = "SERVER=localhost;" + "DATABASE=myvideos75;" + "UID=root;" + "PASSWORD=V0lc0m;"; 
string SQLSelect = "SELECT episode.idShow,tvshow.c00 as 'ShowName',episode.c12 as 'Season',XBMCPathReFact(episode.c18) as 'Path' FROM myvideos75.episode join tvshow on tvshow.idShow = episode.idShow where episode.c13 = 1 order by episode.idShow,episode.c12 "; 
string _XMLFile = "test.xml"; 

MySqlConnection connection = new MySqlConnection(MyConString); 
try 
{ 
    MySqlCommand _MySqlSelect = new MySqlCommand(SQLSelect, connection); 
    DataSet _DataSet1 = new DataSet("XBMC"); 
    MySqlDataAdapter _MySqlDataAdapter1 = new MySqlDataAdapter(_MySqlSelect); 
    _MySqlDataAdapter1.Fill(_DataSet1,"Show"); 
    FileStream myFs = new FileStream(_XMLFile, FileMode.OpenOrCreate, FileAccess.Write); 
    _DataSet1.WriteXml(myFs); 
    myFs.Close(); 
} 

catch (Exception ex) 
{ MessageBox.Show(ex.Message.ToString()); } 

XML它產生

<XBMC> 
    <Show> 
    <idShow>1</idShow> 
    <ShowName>2 Broke Girls</ShowName> 
    <Season>1</Season> 
    <Path>\\10.0.0.3\tv\2 Broke Girls\Season1\</Path> 
    </Show> 
    <Show> 
    <idShow>1</idShow> 
    <ShowName>2 Broke Girls</ShowName> 
    <Season>2</Season> 
    <Path>\\10.0.0.3\tv\2 Broke Girls\Season 02\</Path> 
    </Show> 
    <Show> 
    <idShow>31</idShow> 
    <ShowName>Burn Notice</ShowName> 
    <Season>2</Season> 
    <Path>\\10.0.0.3\tv\Burn Notice\Season2\</Path> 
    </Show> 
    <Show> 
    <idShow>31</idShow> 
    <ShowName>Burn Notice</ShowName> 
    <Season>3</Season> 
    <Path>\\10.0.0.3\tv\Burn Notice\Season3\</Path> 
    </Show> 
</XBMC> 

我想它產生這樣的XML。

<XBMC> 
    <Show> 
    <idShow>1</idShow> 
    <ShowName>2 Broke Girls</ShowName> 
    <Seasons> 
     <Season> 
     <Number>1</Number> 
     <Path>\\10.0.0.3\tv\2 Broke Girls\Season1\</Path> 
     </Season> 
     <Season> 
     <Number>2</Number> 
     <Path>\\10.0.0.3\tv\2 Broke Girls\Season 02\</Path> 
     </Season> 
    </Seasons> 
    </Show> 
    <Show> 
    <idShow>31</idShow> 
    <ShowName>Burn Notice</ShowName> 
    <Seasons> 
     <Season> 
     <Number>2</Number> 
     <Path>\\10.0.0.3\tv\Burn Notice\Season2\</Path> 
     </Season> 
     <Season> 
     <Number>3</Number> 
     <Path>\\10.0.0.3\tv\Burn Notice\Season3\</Path> 
     </Season> 
    </Seasons> 
    </Show> 
</XBMC> 

SQL SELECT語句返回以下數據

謝謝您的時間

Answer 1

好，我得到了一個解決方案，可能是它可以幫助另外一個人用類似的問題。 我已經添加了一些評論來解釋發生了什麼。

string MyConString = "SERVER=10.0.0.3;" + "DATABASE=myvideos75;" + "UID=xbmc;" + "PASSWORD=xbmc;"; 
string SQLSelect = "SELECT tvshow.idShow as 'idShow',tvshow.c00 as 'ShowName',episode.c12 as 'Season',XBMCPathReFact(episode.c18) as 'Path' FROM myvideos75.episode join tvshow on tvshow.idShow = episode.idShow group by episode .idShow,episode.c12"; 

     try 
     {if (File.Exists(_XMLFile)) 
      {File.Delete(_XMLFile);} 
     } 

     catch (Exception ex) 
     { MessageBox.Show(ex.Message.ToString()); } 

     MySqlConnection connection = new MySqlConnection(MyConString); 

     try 
     { 
      MySqlCommand _MySqlSelect = new MySqlCommand(SQLSelect, connection); 
      DataSet _DataSet1 = new DataSet("XBMC"); 
      MySqlDataAdapter _MySqlDataAdapter1 = new MySqlDataAdapter(_MySqlSelect); 
      _MySqlDataAdapter1.Fill(_DataSet1,"Show"); 

      XDocument xdoc; 
      XElement root; 
      XElement tvshow; 
      XElement TvShowElement; 

      xdoc = new XDocument(new XElement("XBMC")); 
      root = xdoc.XPathSelectElement("//XBMC"); 

      // loop start fills stuff in 

      foreach (DataRow row in _DataSet1.Tables[0].Rows) 
      { 
       // Test if the show exists if not create it and add all the Element 
       var ShowIDTest = xdoc.Element("XBMC").Elements("Show").Where(x => x.Element("idShow").Value.Equals(row["idShow"].ToString())).ToList(); 

       if (ShowIDTest.Count < 1) 
       { 
        TvShowElement = new XElement("Show", 
            new XElement("idShow", row["idShow"].ToString()), 
            new XElement("ShowName", row["ShowName"].ToString()), 
            new XElement("Seasons", 
            new XElement("Season", 
            new XElement("Number", row["Season"].ToString()), 
            new XElement("Path", row["Path"].ToString())))); 
        root.Add(TvShowElement); 
       } 
       // The Show Exists , go to the show 
       else 
       { 
        string tvshowpath = "/XBMC/Show[idShow =\"" + row["idShow"].ToString() + "\"]"; 
        tvshow = xdoc.XPathSelectElement(tvshowpath); 
        // Check if the show already has any season if not create it 
        bool SeasonsTest = tvshow.Descendants("Seasons").Any(); 
        if (!SeasonsTest) 
        { 
         TvShowElement = new XElement("Seasons", 
             new XElement("Season", 
             new XElement("Number", row["Season"].ToString()), 
             new XElement("Path", row["Path"].ToString()))); 

         tvshow.Add(TvShowElement); 
        } 
        // the show already has any season element so append the additional seasons 
        else 
        { 
         string tvshowseasonspath = "/XBMC/Show[idShow =\"" + row["idShow"].ToString() + "\"]/Seasons"; 
         tvshow = xdoc.XPathSelectElement(tvshowseasonspath); 

         TvShowElement = new XElement("Season", 
             new XElement("Number", row["Season"].ToString()), 
             new XElement("Path", row["Path"].ToString())); 

         tvshow.Add(TvShowElement); 
        } 
        } 
       } 
      // Save the XML File 
      xdoc.Save(_XMLFile); 
      MessageBox.Show("done"); 
     } 
     catch (Exception ex) 
     { MessageBox.Show(ex.Message.ToString()); }