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POdeserializing xml doc to a list of key value pairs
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  1. POdeserializing xml doc to a list of key value pairs
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    copied!<p>I am trying to deserialize a list of key value pairs that represent a list of high scores and initials. I keep getting an error when I try to deserialize the XML document: <code>There is an error in XML document (0, 0).</code></p> <p>I am deserializing my XML document as below:</p> <pre><code>GameHighScore highScoreHelper = new GameHighScore(); XmlSerializer deserializer = new XmlSerializer(typeof(GameHighScore)); highScoreHelper = (GameHighScore)deserializer.Deserialize(stream); for (int i = 0; i &lt; highScoreHelper.highScoreList.Count; i++) { highScore[i] = new KeyValuePair&lt;string, int&gt;(highScoreHelper.highScoreList[i].Initials, highScoreHelper.highScoreList[i].Score); } </code></pre> <p>Am I missing something in my helper class?</p> <pre><code> [XmlRootAttribute("GameScore")] public class GameHighScore { [XmlArray("Scores")] [XmlArrayItem("HighScore")] public List&lt;HighScoreStruct&lt;string, int&gt;&gt; highScoreList; private HighScoreStruct&lt;string, int&gt; scoreListHelper; [Obfuscation(Exclude = true)] public struct HighScoreStruct&lt;K, V&gt; { [XmlElement("Initials")] public K Initials { get; set; } [XmlElement("Score")] public V Score { get; set; } public HighScoreStruct(K initials, V score) : this() { Initials = initials; Score = score; } } /// &lt;summary&gt; /// The constructor instanstiates the highscore list and /// the high score struct. /// &lt;/summary&gt; public GameHighScore() { highScoreList = new List&lt;HighScoreStruct&lt;string, int&gt;&gt;(); scoreListHelper = new HighScoreStruct&lt;string, int&gt;(); } /// &lt;summary&gt; /// This method creates the list of scores to be stored to the disk. /// &lt;/summary&gt; /// &lt;param name="scoreList"&gt;&lt;/param&gt; public void CreateGameHighScore(List&lt;KeyValuePair&lt;string, int&gt;&gt; scoreList) { for (int i = 0; i &lt; scoreList.Count; i++) { scoreListHelper = new HighScoreStruct&lt;string, int&gt;(scoreList[i].Key, scoreList[i].Value); highScoreList.Add(scoreListHelper); } } } </code></pre> <p>Generated XML document </p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;GameScore xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt; &lt;Scores&gt; &lt;HighScore&gt; &lt;Initials&gt;ZZZ&lt;/Initials&gt; &lt;Score&gt;53125&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;50000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;45000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;40000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;35000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;30000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;25000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;20000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;15000&lt;/Score&gt; &lt;/HighScore&gt; &lt;HighScore&gt; &lt;Initials&gt;AAA&lt;/Initials&gt; &lt;Score&gt;10000&lt;/Score&gt; &lt;/HighScore&gt; &lt;/Scores&gt; &lt;/GameScore&gt; </code></pre> <p><strong>EDIT</strong></p> <p>The above XML document was generated by serializing my helper class.</p> <p>The <code>stream</code> is gotten from below from Nick Gravelyn's EasyStorage Library:</p> <pre><code>/// &lt;summary&gt; /// Loads a file. /// &lt;/summary&gt; /// &lt;param name="containerName"&gt;The name of the container from which to load the file.&lt;/param&gt; /// &lt;param name="fileName"&gt;The file to load.&lt;/param&gt; /// &lt;param name="loadAction"&gt;The load action to perform.&lt;/param&gt; public void Load(string containerName, string fileName, FileAction loadAction) { VerifyIsReady(); // lock on the storage device so that only one storage operation can occur at a time lock (storageDevice) { // open a container using (StorageContainer currentContainer = OpenContainer(containerName)) { // attempt the load using (var stream = currentContainer.OpenFile(fileName, FileMode.Open)) { loadAction(stream); } } } } </code></pre> <p>My full Load Method is below: Note: The save device is just an instance of my EasyStorage save device.</p> <pre><code>public static void Load() { if (Global.SaveDevice.IsReady) { if (Global.SaveDevice.FileExists(Global.containerName, Global.filename_highscores_xml)) { Global.SaveDevice.Load( Global.containerName, Global.filename_highscores_xml, stream =&gt; { try { //stream.Position = 0; GameHighScore highScoreHelper = new GameHighScore(); XmlSerializer deserializer = new XmlSerializer(typeof(GameHighScore)); highScoreHelper = (GameHighScore)deserializer.Deserialize(stream); for (int i = 0; i &lt; highScoreHelper.highScoreList.Count; i++) { highScore[i] = new KeyValuePair&lt;string, int&gt;(highScoreHelper.highScoreList[i].Initials, highScoreHelper.highScoreList[i].Score); } } catch (Exception e) { //if (!Global.SaveDevice.IsBusy &amp;&amp; Global.SaveDevice.IsReady) // Global.SaveDevice.DeleteAsync(Global.containerName, Global.filename_highscores_xml); //Save(); Logger.LogError("Score.Load", e); } }); } else { Save(); } } } </code></pre>
 

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