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  • ASP.NET/C# - Deserialize XML, XSD.exe created multiple classes

    - by Barryman9000
    I'm trying to deserialize some XML (returned from a web service) into an object that I created using XSD.exe. The XSD executable created a .CS file with a different partial class for each parent node in the XML. For Example, the beginning of the XML looks like this (why can't I post xml here? sorry, this is ugly): <disclaimer><notificationDescription>Additional charges will apply.</notificationDescription></disclaimer><quote><masterQuote></masterQuote></quote> And the Class generated by the XSD.exe has a partial class named disclaimer with a get; set; string for notificationDescription. And another partial class for quoteMasterQuote with the corresponding child nodes as public strings. How can I deserialize this XML file into multiple classes? I found this code, but it seems like it'll only work for one object. public static PricingResponse2 DeSerialize(string _xml) { PricingResponse2 _resp = new PricingResponse2(); StringReader _strReader = new StringReader(_xml); XmlSerializer _serializer = new XmlSerializer(_resp.GetType()); XmlReader _xmlReader = new XmlTextReader(_strReader); try { _resp = (PricingResponse2)_serializer.Deserialize(_xmlReader); return _resp; } catch (Exception ex) { string _error = ex.Message; throw; } finally { _xmlReader.Close(); _strReader.Close(); _strReader.Dispose(); } } This is the first time I've tried this, so I'm a little lost.

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  • WPF: UnauthorizedAccessException using anonymous methods.

    - by Diego Pacheco Pedemonte
    Here is the thing, I want to create a simply app that copy many files from one site, and move them to another; but using async methods and create a new thread. private void button3_Click(object sender, RoutedEventArgs e) { //progressBar1.Maximum = _FileInfoArray.Count; DispatcherTimer dt1 = new DispatcherTimer(); foreach (FileInfo Fi in _FileInfoArray) { Thread t = new Thread(new ThreadStart(delegate() { DispatcherOperation _dispOp = progressBar1.Dispatcher.BeginInvoke(DispatcherPriority.Loaded, new Action(delegate() { File.Copy(txtdestino.Text, Fi.FullName, true); //progressBar1.Value = n; //txtstatus.Content = ("Copiados " + n.ToString() + " archivos"); //Thread.Sleep(100); } )); _dispOp.Completed += new EventHandler(_dispOp_Completed); } )); t.Start(); } } UnauthorizedAccessException is throw! It says that I can't access to txtdestino content. Some clues? -------------------------------------------------------------------------------Edited This is the version with all the changes, get the same error :( any clues? private void button4_Click(object sender, RoutedEventArgs e) { //First: Build mynames List<string> mynames = new List<string>(); foreach (FileInfo fi in _FileInfoArray) { mynames.Add(fi.FullName); } Thread t = new Thread(new ThreadStart(delegate() { foreach (string fullname in mynames) { DispatcherOperation _dispOp = progressBar1.Dispatcher.BeginInvoke(DispatcherPriority.Loaded, new Action(delegate() { string destino = System.IO.Path.Combine(@"C:\", System.IO.Path.GetFileName(fullname)); File.Copy(fullname, destino, true); //Some progressbar changes } )); _dispOp.Completed += new EventHandler(_dispOp_Completed); } } )); t.Start(); } File.Copy(txtdestino.Text, Fi.FullName, true); // here the exception is throw

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  • Java JUnit: The method X is ambiguous for type Y

    - by Rosarch
    I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code: import static org.junit.Assert.*; import java.util.HashSet; import java.util.Map; import java.util.Set; import org.jgrapht.Graphs; import org.jgrapht.WeightedGraph; import org.jgrapht.graph.DefaultWeightedEdge; import org.jgrapht.graph.SimpleWeightedGraph; import org.junit.*; @Test public void testEccentricity() { WeightedGraph<String, DefaultWeightedEdge> g = generateSimpleCaseGraph(); Map<String, Double> eccen = JGraphtUtilities.eccentricities(g); assertEquals(70, eccen.get("alpha")); assertEquals(80, eccen.get("l")); assertEquals(130, eccen.get("l-0")); assertEquals(100, eccen.get("l-1")); assertEquals(90, eccen.get("r")); assertEquals(120, eccen.get("r-0")); assertEquals(130, eccen.get("r-1")); } The error message is this: The method assertEquals(Object, Object) is ambiguous for the type JGraphtUtilitiesTest How can I fix this? Why did this problem occur as I moved the class to a different package?

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  • Generic wrapper for System.Web.Caching.Cache functions

    - by David Neale
    I've created a generic wrapper for using the Cache object: public class Cache<T> where T : class { public Cache Cache {get;set;} public CachedKeys Key {get;set;} public Cache(Cache cache, CachedKeys key){ Cache = cache; Key = key; } public void AddToCache(T obj){ Cache.Add(Key.ToString(), obj, null, DateTime.Now.AddMinutes(5), System.Web.Caching.Cache.NoSlidingExpiration, System.Web.Caching.CacheItemPriority.Normal, null); } public bool TryGetFromCache(out T cachedData) { cachedData = Cache[Key.ToString()] as T; return cachedData != null; } public void RemoveFromCache() { Cache.Remove(Key.ToString()); } } The CachedKeys enumeration is just a list of keys that can be used to cache data. The trouble is, to call it is quite convuluted: var cache = new Cache<MyObject>(Page.Cache, CachedKeys.MyKey); MyObject myObject = null; if(!cache.TryGetFromCache(out myObject)){ //get data... cache.AddToCache(data); //add to cache return data; } return myObject; I only store one instance of each of my objects in the cache. Therefore, is there any way that I can create an extension method that accepts the type of object to Cache and uses (via Reflection) its Name as the cache key? public static Cache<T> GetCache(this Cache cache, Type cacheType){ Cache<cacheType> Cache = new Cache<cacheType>(cache, cacheType.Name); } Of course, there's two errors here: Extension methods must be defined in a non-generic static class The type or namespace name 'cacheType' could not be found This is clearly not the right approach but I thought I'd show my working. Could somebody guide me in the right direction?

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  • Gridview empty when SelectedIndexChanged called

    - by xan
    I have a DataGrid which is being bound dynamically to a database query. The user enters some search text into a text field, clicks search, and the code behind creates the appropriate database query using LINQ (searches a table based on the string and returns a limited set of the columns). It then sets the GridView datasource to be the query and calls DataBind(). protected void btnSearch_Click(object sender, EventArgs e) { var query = from record in DB.Table where record.Name.Contains(txtSearch.Text) //Extra string checking etc. removed. select new { record.ID, record.Name, record.Date }; gvResults.DataSource = query; gvResults.DataBind(); } This works fine. When a user selects a row in the grid, the SelectedIndexChanged event handler gets the id from the row in the grid (one of the fields), queries the full record from the DB and then populates a set of editor / details fields with the records full details. protected void gvResults_SelectedIndexChanged(object sender, EventArgs e) { int id = int.Parse(gvResults.SelectedRow.Cells[1].Text); DisplayDetails(id); } This works fine on my local machine where I'm developing the code. On the production server however, the function is called successfully, but the row and column count on gvResults, the GridVeiw is 0 - the table is empty. The GridView's viewstate is enabled and I can't see obvious differences. Have I made some naive assumptions, or am I relying on something that is likely to be configured differently in debug? Locally I am running an empty asp.net web project in VS2008 to make development quicker. The production server is running the sitecore CMS so is configured rather differently. Any thoughts or suggestions would be most welcome. Thanks in advance!

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  • Class Decorators, Inheritence, super(), and maximum recursion

    - by jamstooks
    I'm trying to figure out how to use decorators on subclasses that use super(). Since my class decorator creates another subclass a decorated class seems to prevent the use of super() when it changes the className passed to super(className, self). Below is an example: def class_decorator(cls): class _DecoratedClass(cls): def __init__(self): return super(_DecoratedClass, self).__init__() return _DecoratedClass class BaseClass(object): def __init__(self): print "class: %s" % self.__class__.__name__ def print_class(self): print "class: %s" % self.__class__.__name__ bc = BaseClass().print_class() class SubClass(BaseClass): def print_class(self): super(SubClass, self).print_class() sc = SubClass().print_class() @class_decorator class SubClassAgain(BaseClass): def print_class(self): super(SubClassAgain, self).print_class() sca = SubClassAgain() # sca.print_class() # Uncomment for maximum recursion The output should be: class: BaseClass class: BaseClass class: SubClass class: SubClass class: _DecoratedClass Traceback (most recent call last): File "class_decorator_super.py", line 34, in <module> sca.print_class() File "class_decorator_super.py", line 31, in print_class super(SubClassAgain, self).print_class() ... ... RuntimeError: maximum recursion depth exceeded while calling a Python object Does anyone know of a way to not break a subclass that uses super() when using a decorator? Ideally I'd like to reuse a class from time to time and simply decorate it w/out breaking it.

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  • How to use BeanTreeView?

    - by joseph
    Hello. I have read through whole platform.netbeans.org and I do not find how to add some instance to existing children. I can add static array of diagrams(created in addNotify()), but how to add new Diagram object to the Children? I want to add it from an action that I will create(not included in code). See the code: public class ExploirerTopComponent extends TopComponent implements ExplorerManager.Provider { ... ... ... public ExploirerTopComponent() { ... ... associateLookup (ExplorerUtils.createLookup(mgr, getActionMap())); mgr.setRootContext(new MyProjects());// setDisplayName ("Projects explorer"); } public class MyProjects extends AbstractNode { public MyProjects(MainProject obj) { super (new ProjectsChildren(), Lookups.singleton(obj)); setDisplayName ( obj.getName()); } public MyProjects() { super (new ProjectsChildren()); setDisplayName ("My projects"); } } . public class ProjectsChildren extends Children.Keys{ public ProjectsChildren() { } @Override protected Node[] createNodes(Object o) { MainProject obj = (MainProject) o; return new Node[] { new MyDiagrams() }; } @Override protected void addNotify() { Diagram[] d = new Diagram[3]; for (int i = 0; i < pr.length; i++) { pr[i] = new Diagram("digram"); } setKeys (pr); } }

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  • jquery use return data from 2 functions in another function ---always get undefined. why ??

    - by user253530
    Function socialbookmarksTableData(data) is called by another function to generate the content of a table -- data is a JSON object. Inside the function i call 2 other functions that use getJSON and POST (with json as a return object) to get some data. The problem is: though the functions execute correctly i get undefined value for the 2 variables (bookmarkingSites, bookmarkCategories). Help with a solution please. function socialbookmarksGetBookmarkCategories(bookmarkID) { var toReturn = ''; $.post("php/socialbookmark-get-bookmark-categories.php",{ bookmarkID: bookmarkID },function(data){ $.each(data,function(i,categID){ toReturn += '<option value ="' + data[i].categID + '">' + data[i].categName + '</option>'; }) return toReturn; },"JSON"); } function socialbookmarksGetBookmarkSites() { var bookmarkingSites = ''; $.getJSON("php/socialbookmark-get-bookmarking-sites.php",function(bookmarks){ for(var i = 0; i < bookmarks.length; i++){ //alert( bookmarks[i].id); bookmarkingSites += '<option value = "' + bookmarks[i].id + '">' + bookmarks[i].title + '</option>'; } return bookmarkingSites; }); } function socialbookmarksTableData(data) { var toAppend = ''; var bookmarkingSites = socialbookmarksGetBookmarkSites(); $.each(data.results, function(i, id){ var bookmarkCategories = socialbookmarksGetBookmarkCategories(data.results[i].bookmarkID); //rest of the code is not important }); $("#searchTable tbody").append(toAppend); }

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  • Servlet receives null from Remote EJB3 Session Bean

    - by Hank
    I'm sure this is a beginner error... So I have a JEE6 application with entities, facades (implementing the persistence layer) and Stateless Session Beans (EJB3) with Remote interfaces (providing access to the entities via facades). This is working fine. Via the SLSB I can retrieve and manipulate entities. Now, I'm trying to do this from a Web Application (deployed on the same Glassfish, entity+interface definitions from JEE app imported as separate jar). I have a Servlet, that receives an instance of the SLSB injected. I get it to retrieve an entity, and the following happens (I can see it in the logs): the remote SLSB gets instantiated, its method called SLSB instantiates the facade, calls the 'get' method facade retrieves object from DB, returns it SLSB returns the object to the caller (all is good until here) calling servlet receives .. null !! What is going wrong? This should work, right? MyServlet: public class MyServlet extends HttpServlet { @EJB private CampaignControllerRemote campaignController; // remote SLSB protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/plain"); PrintWriter out = response.getWriter(); try { Campaign c = campaignController.getCampaign(5L); // id of an existing campaign out.println("Got "+ c.getId()); // c is null !! } finally { out.close(); } } ... } Pls let me know if you want to see other code, and I'll update the post.

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  • Marshalling C# com items when using recursion

    - by Kevin
    I am using the SourceSafe COM object (SourceSafeTypeLib) from C# to automate a SourceSafe recursive get (part of a larger build process). The recursive function is shown below. How do I ensure that all the COM objects created in the foreach loop get released correctly? /// <summary> /// Recursively gets files/projects from SourceSafe (this is a recursive function). /// </summary> /// <param name="vssItem">The VSSItem to get</param> private void GetChangedFiles(VSSItem vssItem) { // 'If the object is a file perform the diff, // 'If not, it is a project, so use recursion to go through it if(vssItem.Type == (int)VSSItemType.VSSITEM_FILE) { bool bDifferent = false; //file is different bool bNew = false; //file is new //Surround the diff in a try-catch block. If a file is new(doesn't exist on //the local filesystem) an error will be thrown. Catch this error and record it //as a new file. try { bDifferent = vssItem.get_IsDifferent(vssItem.LocalSpec); } catch { //File doesn't exist bDifferent = true; bNew = true; } //If the File is different(or new), get it and log the message if(bDifferent) { if(bNew) { clsLog.WriteLine("Getting " + vssItem.Spec); } else { clsLog.WriteLine("Replacing " + vssItem.Spec); } string strGetPath = vssItem.LocalSpec; vssItem.Get(ref strGetPath, (int)VSSFlags.VSSFLAG_REPREPLACE); } } else //Item is a project, recurse through its sub items { foreach(VSSItem fileItem in vssItem.get_Items(false)) { GetChangedFiles(fileItem); } } }

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  • How to provide stl like container with public const iterator and private non-const iterator?

    - by WilliamKF
    Hello, I am deriving a class privately from std::list and wish to provide public begin() and end() for const_iterator and private begin() and end() for just plain iterator. However, the compiler is seeing the private version and complaining that it is private instead of using the public const version. I understand that C++ will not overload on return type (in this case const_iterator and iterator) and thus it is choosing the non-const version since my object is not const. Short of casting my object to const before calling begin() or not overloading the name begin is there a way to accomplish this? I would think this is a known pattern that folks have solved before and would like to follow suit as to how this is typically solved. class myObject; class myContainer : private std::list<myObject> { public: typedef std::list<myObject>::const_iterator myContainer::const_iterator; private: typedef std::list<myObject>::iterator myContainer::iterator; public: myContainer::const_iterator begin() const { return std::list<myObject>::begin(); } myContainer::const_iterator end() const { return std::list<myObject>::end(); } private: myContainer::iterator begin() { return std::list<myObject>::begin(); } myContainer::iterator end() { return std::list<myObject>::end(); } }; void myFunction(myContainer &container) { myContainer::const_iterator aItr = container.begin(); myContainer::const_iterator aEndItr = container.end(); for (; aItr != aEndItr; ++aItr) { const myObject &item = *aItr; // Do something const on container's contents. } } The error from the compiler is something like this: ../../src/example.h:447: error: `std::_List_iterator<myObject> myContainer::begin()' is private caller.cpp:2393: error: within this context ../../src/example.h:450: error: `std::_List_iterator<myObject> myContainer::end()' is private caller.cpp:2394: error: within this context Thanks. -William

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  • WCF- "The underlying connection was closed: The connection was closed unexpectedly"

    - by SumGuy
    Hi there. I'm recieving that wonderfuly ambiguous error message when using one of my webmethods on my WCF webservice. As that error message doesn't provide any explanation whatsoever allow me to post my theory. I believe it may have something to do with the return type I'm using I have a Types DLL which is refrenced in both the webservice and the client. In this DLL is the base class ExceptionMessages. There is a child of this class called DrawingExcepions. Here is some code: public class ExceptionMessages { public object[] ReturnValue { get; set; } } public class DrawingExceptions : ExceptionMessages { private List<DrawingException> des = new List<DrawingException>(); } public class DrawingException { public Exception ExceptionMsg { get; set; } public List<object> Errors { get; set; } } The using code: [OperationContract] ExceptionMessages createNewBom(Bom bom, DrawingFiles dfs); public ExceptionMessages createNewBOM(Bom bom, DrawingFiles dfs) { return insertAssembly(bom, dfs); } public DrawingExceptions insertAssembly(Bom bom, DrawingFiles dfs) { DrawingExceptions des = new DrawingExceptions(); foreach (DrawingFile d in dfs.drawingFiles) { DrawingException temp = insertNewDrawing(bom, d); if (temp != null) des.addDrawingException(temp); if (d.Child != null) des.addDrawingException(insertAssembly(bom, d.Child)); } return des; } Returns to: ExceptionMessages ems = client.createNewBom(bom, currentDFS); if (ems is DrawingExceptions) { } Basically the return type from the webmethod is ExceptionMessages however I would usually be sending the child class back instead. My only idea is that it's the child that's causing the error but as far as I've read, this should have no effect. Has anyone got any ideas what could be going wrong here? If any more info is required, just ask :) Thanks.

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  • Dynamically loading sub-trees into YUI Treeview

    - by user319399
    When you create a YUI TreeView instance, you can pass in an object that represents an entire tree, and it will automatically build up the TextNodes for you. I'd like to send in a partial tree, such that the tree only goes, say, 2 levels deep, and anything deeper than that will invoke dynamic loading. I've got that much working. Now for the interesting part. In the dynamic loading callback I give to my tree instance, I want to again be able to just give YUI a big object representing more of the tree. I want to do something like this: // data is a array of objects organized into a tree, with some nodes requiring dynamic loading when they are navigated to tree = new YAHOO.widget.TreeView("treeDiv1", data); tree.setDynamicLoad(loadDataForNode); function loadDataForNode(node, onCompleteCallback) { if(node.children.length==0) { var subTree = { "label":"Cars", isLeaf:false, children:[ { "label":"Chevy", isLeaf:true }, { "label":"Ford", isLeaf:true }, ] }; // doesn't work, even though it has the required "label" field var tempNode = new YAHOO.widget.TextNode(subTree, node, true); } onCompleteCallback(); } Is this possible? Or do I have to iterate over all the nodes in my subtree and construct individual TextNodes for each one? Thanks much...

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  • What am I missing with log4net - No log file created

    - by Saif Khan
    I am trying to use log4net in a VB.NET app for some unknown reason it's not creating the log file. Here is my app.config <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" /> </configSections> <log4net> <appender name="FileAppender" type="log4net.Appender.FileAppender"> <file value="c:\log-file.txt" /> <appendToFile value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /> </layout> </appender> <root> <level value="ALL" /> <appender-ref ref="FileAppender" /> </root> </log4net> </configuration> Here is the app code Imports log4net Public Class Form1 Dim log As ILog Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click log.Error("test") End Sub Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load log4net.Config.XmlConfigurator.Configure() log = log4net.LogManager.GetLogger("TestThings") End Sub End Class "TestThings" is the name of the VS project. What am I missing?

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  • ASP.Net GridView UpdatePanel Paging Gives Error On Second Click

    - by joe
    I'm trying to implement a GridView with paging inside a UpdatePanel. Everything works great when I do my first click. The paging kicks in and the next set of data is loaded quickly. However, when I then try to click a link for another page of data, I get the following error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 12030 aspx code <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <contenttemplate> <asp:GridView ID="GridView1" runat="server" CellPadding="2" AllowPaging="true" AllowSorting="true" PageSize="20" OnPageIndexChanging="GridView1_PageIndexChanging" OnSorting="GridView1_PageSorting" AutoGenerateColumns="False"> <Columns> <asp:BoundField DataField="ActivityLogID" HeaderText="Activity Log ID" SortExpression="ActivityLogID" /> <asp:BoundField DataField="ActivityDate" HeaderText="Activity Date" SortExpression="ActivityDate" /> <asp:BoundField DataField="ntUserID" HeaderText="NTUserID" SortExpression="ntUserID" /> <asp:BoundField DataField="ActivityStatus" HeaderText="Activity Status" SortExpression="ActivityStatus" /> </Columns> </asp:GridView> </contenttemplate> </asp:UpdatePanel> code behind private void bindGridView(string sortExp, string sortDir) { SqlCommand mySqlCommand = new SqlCommand(sSQL, mySQLconnection); SqlDataAdapter mySqlAdapter = new SqlDataAdapter(mySqlCommand); mySqlAdapter.Fill(dtDataTable); DataView myDataView = new DataView(); myDataView = dt.DefaultView; if (sortExp != string.Empty) { myDataView.Sort = string.Format("{0} {1}", sortExp, sortDir); } GridView1.DataSource = myDataView; GridView1.DataBind(); if (mySQLconnection.State == ConnectionState.Open) { mySQLconnection.Close(); } } protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) { GridView1.PageIndex = e.NewPageIndex; bindGridView(); } protected void GridView1_PageSorting(object sender, GridViewSortEventArgs e) { bindGridView(e.SortExpression, sortOrder); } any clues on what is causing the error on the second click?

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  • Spring-json problem in Liferay with Spring 2.5

    - by Jesus Benito
    Hi all, I am trying to use the library spring-json.1.3.1 in a project that has been done with Liferay 5.1.2 which includes Spring 2.5. Following the project website instructions, I managed to make the request hit in my controller, but at the moment of returning the json object back through the modelAndView object it fails with the following error: java.lang.IllegalArgumentException at com.liferay.portlet.MimeResponseImpl.setContentType(MimeResponseImpl.java:162) I have checked Liferays source code, and it checks that contentType that its being set is in a harcoded list,if it not it will throw a IllegalArgumentException that it is exactly what os happening. This is my view resolver code: <bean id="xmlFileViewResolver" class="org.springframework.web.servlet.view.XmlViewResolver"> /WEB-INF/context/views.xml 1 My views.xml code: <beans> <bean name="jsonView" class="org.springframework.web.servlet.view.json.JsonView"/> And my controller: @SuppressWarnings("unchecked") @Override public ModelAndView handleRenderRequest(RenderRequest arg0, RenderResponse arg1) throws Exception { Map model = new HashMap(); model.put("firstname", "Peter"); model.put("secondname", "Schmitt"); return new ModelAndView("jsonView", model); } Any ideas?

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  • How to access attributes using Nokogiri

    - by Liz
    I have a simple task of accessing the values of some attributes. Below is a simple script that uses Nokogiri::XML::Builder to create a simple xml doc. require 'nokogiri' builder = Nokogiri::XML::Builder.new(:encoding => 'UTF-8') do |xml| xml.Placement(:messageId => "392847-039820-938777", :system => "MOD", :version => "2.0") { xml.objects { xml.object(:myattribute => "99", :anotherattrib => "333") xml.nextobject_ '9387toot' xml.Entertainment "Last Man Standing" } } end puts builder.to_xml puts builder.root.attributes["messageId"] The results are below: <?xml version="1.0" encoding="UTF-8"?> <Placement messageId="392847-039820-938777" version="2.0" system="MOD"> <objects> <object anotherattrib="333" myattribute="99"/> <nextobject>9387toot</nextobject> <Entertainment>Last Man Standing</Entertainment> </objects> </Placement> C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/document.rb:178:in `add_child': Document already has a root node (RuntimeError) from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/node.rb:455:in `parent=' from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/builder.rb:358:in `insert' from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/builder.rb:350:in `method_missing' from C:/Documents and Settings/etrojan/workspace/Lads/tryXPATH2.rb:15 The xml that is generated looks fine. However, my attempts to access attributes cause an error to be generated, "Document already has a root node". I don't understand why a puts statement would cause this error. Any suggestions would be greatly appreciated.

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  • Is there any danger in calling free() or delete instead of delete[]? [closed]

    - by Matt Joiner
    Possible Duplicate: ( POD )freeing memory : is delete[] equal to delete ? Does delete deallocate the elements beyond the first in an array? char *s = new char[n]; delete s; Does it matter in the above case seeing as all the elements of s are allocated contiguously, and it shouldn't be possible to delete only a portion of the array? For more complex types, would delete call the destructor of objects beyond the first one? Object *p = new Object[n]; delete p; How can delete[] deduce the number of Objects beyond the first, wouldn't this mean it must know the size of the allocated memory region? What if the memory region was allocated with some overhang for performance reasons? For example one could assume that not all allocators would provide a granularity of a single byte. Then any particular allocation could exceed the required size for each element by a whole element or more. For primitive types, such as char, int, is there any difference between: int *p = new int[n]; delete p; delete[] p; free p; Except for the routes taken by the respective calls through the delete-free deallocation machinery?

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  • Debugging Key-Value-Observing overflow.

    - by Paperflyer
    I wrote an audio player. Recently I started refactored some of the communication flow to make it fully MVC-compliant. Now it crashes, which in itself is not surprising. However, it crashes after a few seconds inside the Cocoa key-value-observing routines with a HUGE stack trace of recursive calls to NSKeyValueNotifyObserver. Obviously, it is recursively observing a value and thus overflowing the NSArray that holds pending notifications. According to the stack trace, the program loops from observeValueForKeyPath to setMyValue and back. Here is the according code: - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if ([keyPath isEqual:@"myValue"] && object == myModel && [self myValue] != [myModel myValue]) { [self setMyValue:[myModel myValue]; } } and - (void)setMyValue:(float)value { myValue = value; [myModel setMyValue:value]; } myModel changes myValue every 0.05 seconds and if I log the calls to these two functions, they get called only every 0.05 seconds just as they should be, so this is working properly. The stack trace looks like this: -[MyDocument observeValueForKeyPath:ofObject:change:context:] NSKeyValueNotifyObserver NSKeyValueDidChange -[NSObject(NSKeyValueObserverNotification) didChangeValueForKey:] -[MyDocument setMyValue:] _NSSetFloatValueAndNotify …repeated some ~8k times until crash Do you have any idea why I could still be spamming the KVO queue?

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  • sencha dataitem datamap setItems

    - by user1795667
    I'm trying to follow the kitten example given here http://www.sencha.com/blog/dive-into-dataview-with-sencha-touch-2-beta-2#comment_form and I have complex components in which one of the property of my data is a list of objects. And I do find a method for setting a list of objects which is setItems however it does not seem to work. My object array is my model MyApp.Model.Sponsor. Could anyone suggest what I'm missing to get this working? Ext.define('MyListItem', { extend: 'Ext.dataview.component.DataItem', requires: ['Ext.Button','Ext.Img', 'MyApp.model.Sponsors', 'MyApp.model.Sponsor'], xtype: 'mylistitem', config: { sponsor: true, dataMap: { getSponsor: { setItems: 'sponsor' } } }, applySponsor: function(config) { // I put an alert here to see if I get getSponsor() but the object I get here is undefined alert(this.getSponsor()); return Ext.factory(config, MyApp.model.Sponsor, this.getSponsor()); }, updateSponsor: function(newNameButton, oldNameButton) { if (oldNameButton) { this.remove(oldNameButton); } if (newNameButton) { this.add(newNameButton); } }, onSponsorTap: function(button, e) { var sponsors = record.get('sponsor'); //my specific action } }); Ext.define('MyApp.model.Sponsors', { extend: 'Ext.data.Model', xtype:'Sponsors_m', config: { fields: [ {name: 'level', type: 'auto'}, {name: 'id', type: 'int'}, {name: 'sponsor', type: 'Sponsor'} ] } }); Ext.define('MyApp.model.Sponsor', { extend: 'Ext.data.Model', xtype:'Sponsor_m', config: { fields: [ {name: 'name', type: 'auto'}, {name: 'image', type: 'auto'}, {name: 'url', type: 'auto'}, {name: 'description', type: 'auto'} ] } });

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  • Embedding a Media manager video in the article in Joomla1.5

    - by Aruna
    Hi, I am working on Joomla currently for the past one month. I am trying to embed a video stream in my article page like inside the content i am trying to have video stream like youtube video. I have uploaded a video in my media manager. And i dono how to stream that video in my page. Please help me in doing so.. EDIT: FOr an youtube video i have used like <object width='425' height='344'> <param name='movie' value='http://www.youtube.com/v/hQVTIJBZook&hl=en&fs=1'> <param name='type' value='application/x-shockwave-flash'> <param name='allowfullscreen' value='true'> <param name='allowscriptaccess' value='always'> <param name="wmode" value="opaque" /> <embed width='425' height='344' src='http://www.youtube.com/v/hQVTIJBZook&hl=en&fs=1' type='application/x-shockwave-flash' allowfullscreen='true' allowscriptaccess='always' wmode="opaque"> </embed> </object> But i am having the video in my http://www.abc.com/images/abc.flv i am not able to know of how to use this video ?? where http://www.abc.com is my website running in Joomla1.5 . Please help me..

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  • Programmatically access the CIL for a .NET type

    - by Jordão
    Is there a straighforward library that I can use to access the CIL for a .NET type? Let me demonstrate what I want the fictitious CilExtractor to do: [Serializable] public class Type_For_Extract_Cil_Test { private int _field = 3; public int Method(int value) { checked { return _field + value; } } } [Test] public void Extract_Cil_For_Type_Test() { string actualCil = CilExtractor.ExtractCil(typeof(Type_For_Extract_Cil_Test)); string expectedCil = @" .class public auto ansi serializable beforefieldinit Type_For_Extract_Cil_Test extends [mscorlib]System.Object { .method public hidebysig specialname rtspecialname instance void .ctor() cil managed { .maxstack 8 L_0000: ldarg.0 L_0001: ldc.i4.3 L_0002: stfld int32 Type_For_Extract_Cil_Test::_field L_0007: ldarg.0 L_0008: call instance void [mscorlib]System.Object::.ctor() L_000d: ret } .method public hidebysig instance int32 Method(int32 'value') cil managed { .maxstack 8 L_0000: ldarg.0 L_0001: ldfld int32 Type_For_Extract_Cil_Test::_field L_0006: ldarg.1 L_0007: add.ovf L_0008: ret } .field private int32 _field }"; // indentations and code formatting issues apart, this should succeed Assert.AreEqual(expectedCil, actualCil); } I know I can do this with Mono.Cecil or Reflector, but I also know I have to write a lot of code to achieve this. Since Reflector already does this on its UI, isn't there a simple way to access this functionality, like with a simple method call? Are there other libraries that are better suited to this specific scenario?

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  • What's the strangest corner case you've seen in C# or .NET?

    - by Jon Skeet
    I collect a few corner cases and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible: string x = new string(new char[0]); string y = new string(new char[0]); Console.WriteLine(object.ReferenceEquals(x, y)); I'd expect that to print False - after all, "new" (with a reference type) always creates a new object, doesn't it? The specs for both C# and the CLI indicate that it should. Well, not in this particular case. It prints True, and has done on every version of the framework I've tested it with. (I haven't tried it on Mono, admittedly...) Just to be clear, this is only an example of the kind of thing I'm looking for - I wasn't particularly looking for discussion/explanation of this oddity. (It's not the same as normal string interning; in particular, string interning doesn't normally happen when a constructor is called.) I was really asking for similar odd behaviour. Any other gems lurking out there?

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  • FindBugs controversal description

    - by Tom Brito
    Am I understanding it wrong, or is the description wrong? Equals checks for noncompatible operand (EQ_CHECK_FOR_OPERAND_NOT_COMPATIBLE_WITH_THIS) This equals method is checking to see if the argument is some incompatible type (i.e., a class that is neither a supertype nor subtype of the class that defines the equals method). For example, the Foo class might have an equals method that looks like: public boolean equals(Object o) { if (o instanceof Foo) return name.equals(((Foo)o).name); else if (o instanceof String) return name.equals(o); else return false; This is considered bad practice, as it makes it very hard to implement an equals method that is symmetric and transitive. Without those properties, very unexpected behavoirs are possible. From: http://findbugs.sourceforge.net/bugDescriptions.html#EQ_CHECK_FOR_OPERAND_NOT_COMPATIBLE_WITH_THIS The description says that the Foo class might have an aquals method like that, and after it says that "This is considered bad practice". I'm not getting the "right way".. How should the following method be to be right? @Override public boolean equals(Object obj) { if (obj instanceof DefaultTableModel) return model.equals((DefaultTableModel)obj); else return false; }

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  • Format date from SQLCE to display in DataGridView

    - by Ruben Trancoso
    hi folks, I have a DataGridView bound to a table from a .sdf database through a BindSource. The date column display dates like "d/M/yyyy HH:mm:ss". e.: "27/2/1971 00:00:00". I want to make it display just "27/02/1971" in its place. I tried to apply DataGridViewCellStyle {format=dd/MM/yyyy} but nothing happens, event with other pre-built formats. On the the other side, there's a Form with a MasketTextBox with a "dd/MM/yyyy" mask to its input that is bound to the same column and uses a Parse and a Format event handler before display and send it to the db. Binding dataNascimentoBinding = new Binding("Text", this.source, "Nascimento", true); dataNascimentoBinding.Format += new ConvertEventHandler(Util.formatDateConvertEventHandler); dataNascimentoBinding.Parse += new ConvertEventHandler(Util.parseDateConvertEventHandler); this.dataNascimentoTxt.DataBindings.Add(dataNascimentoBinding); public static string convertDateString2DateString(string dateString, string inputFormat, string outputFormat ) { DateTime date = DateTime.ParseExact(dateString, inputFormat, DateTimeFormatInfo.InvariantInfo); return String.Format("{0:" + outputFormat + "}", date); } public static void formatDateConvertEventHandler(object sender, ConvertEventArgs e) { if (e.DesiredType != typeof(string)) return; if (e.Value.GetType() != typeof(string)) return; String dateString = (string)e.Value; e.Value = convertDateString2DateString(dateString, "d/M/yyyy HH:mm:ss", "dd/MM/yyyy"); } public static void parseDateConvertEventHandler(object sender, ConvertEventArgs e) { if (e.DesiredType != typeof(string)) return; if (e.Value.GetType() != typeof(string)) return; string value = (string)e.Value; try { e.Value = DateTime.ParseExact(value, "dd/MM/yyyy", DateTimeFormatInfo.InvariantInfo); } catch { return; } } Like you can see by the code it was expexted that Date coming from SQL would be a DateTime value as is its column, but my eventHandler is receiving a string instead. Likewise, the result date for parse should be a datetime but its a string also. I'm puzzled dealing with this datetime column.

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