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POCustom config section containing collection
 

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    <p>I'm having trouble getting a custom config section to work. It's some code I got from the web in an effort to try to understand this area a little better and enable me to get to where I want to ultimatly be, my own custom config section.</p> <p>The error I get when I run the code in a console app is ' <em>Unrecognized attribute 'extension'. Note that attribute names are case-sensitive.</em>'</p> <p>The code in the main app to get things going is</p> <pre><code>var conf = ConfigurationManager.GetSection("uploadDirector"); </code></pre> <p>and this is where the exception appears.</p> <p>This is the config section I am hoping/trying to achieve</p> <pre><code>&lt;AuthorisedClients&gt; &lt;AuthorisedClient name="Client"&gt; &lt;Queue id="1" /&gt; &lt;Queue id="7" /&gt; &lt;/AuthorisedClient&gt; &lt;AuthorisedClient name="Client2"&gt; &lt;Queue id="3" /&gt; &lt;Queue id="4" /&gt; &lt;/AuthorisedClient&gt; &lt;/AuthorisedClients&gt; </code></pre> <p>Here's the code I have got from the web</p> <p><em>.config file</em></p> <pre><code>&lt;uploadDirector&gt; &lt;filegroup name="documents" defaultDirectory="/documents/"&gt; &lt;clear/&gt; &lt;add extension="pdf" mime="application/pdf" maxsize="100"/&gt; &lt;add extension="doc" mime="application/word" maxsize="500"/&gt; &lt;/filegroup&gt; &lt;filegroup name="images"&gt; &lt;clear/&gt; &lt;add extension="gif" mime="image/gif" maxsize="100"/&gt; &lt;/filegroup&gt; &lt;/uploadDirector&gt; </code></pre> <p><em>UploadDirectorConfigSection.cs</em></p> <pre><code>public class UploadDirectorConfigSection : ConfigurationSection { private string _rootPath; public UploadDirectorConfigSection() { } [ConfigurationProperty("rootpath", DefaultValue="/", IsRequired=false, IsKey=false)] [StringValidator(InvalidCharacters=@"~!.@#$%^&amp;*()[]{};'\|\\")] public string RootPath { get { return _rootPath; } set { _rootPath = value; } } [ConfigurationProperty("", IsRequired = true, IsKey = false, IsDefaultCollection = true)] public FileGroupCollection FileGroups { get { return (FileGroupCollection) base[""]; } set { base[""] = value; } } } </code></pre> <p><em>FileGroupCollection.cs</em></p> <pre><code>public class FileGroupCollection : ConfigurationElementCollection { protected override ConfigurationElement CreateNewElement() { return new FileGroupElement(); } protected override object GetElementKey(ConfigurationElement element) { return ((FileGroupElement) element).Name; } public override ConfigurationElementCollectionType CollectionType { get { return ConfigurationElementCollectionType.BasicMap; } } protected override string ElementName { get { return "filegroup"; } } protected override bool IsElementName(string elementName) { if (string.IsNullOrWhiteSpace(elementName) || elementName != "filegroup") return false; return true; } public FileGroupElement this[int index] { get { return (FileGroupElement) BaseGet(index); } set { if(BaseGet(index) != null) BaseRemoveAt(index); BaseAdd(index, value); } } } </code></pre> <p><em>FileGroupElement.cs</em></p> <pre><code>public class FileGroupElement : ConfigurationElement { [ConfigurationProperty("name", IsKey=true, IsRequired = true)] [StringValidator(InvalidCharacters = @" ~.!@#$%^&amp;*()[]{}/;'""|\")] public string Name { get { return (string) base["name"]; } set { base["name"] = value; } } [ConfigurationProperty("defaultDirectory", DefaultValue = ".")] public string DefaultDirectory { get { return (string) base["Path"]; } set { base["Path"] = value; } } [ConfigurationProperty("", IsDefaultCollection = true, IsRequired = true)] public FileInfoCollection Files { get { return (FileInfoCollection) base[""]; } } } </code></pre> <p><em>FileInfoCollection.cs</em></p> <pre><code>public class FileInfoCollection : ConfigurationElementCollection { protected override ConfigurationElement CreateNewElement() { return new FileInfoCollection(); } protected override object GetElementKey(ConfigurationElement element) { return ((FileInfoElement) element).Extension; } } </code></pre> <p><em>FileInfoElement.cs</em></p> <pre><code>public class FileInfoElement : ConfigurationElement { public FileInfoElement() { Extension = "txt"; Mime = "text/plain"; MaxSize = 0; } [ConfigurationProperty("extension", IsKey = true, IsRequired = true)] public string Extension { get { return (string)base["extension"]; } set { base["extension"] = value; } } [ConfigurationProperty("mime", DefaultValue = "text/plain")] public string Mime { get { return (string) base["mime"]; } set { base["mime"] = value; } } [ConfigurationProperty("maxsize", DefaultValue = 0)] public int MaxSize { get { return (int) base["maxsize"]; } set { base["maxsize"] = value; } } } </code></pre>
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