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  • Logging exceptions during bean injection

    - by Marc W
    I think this is a pretty basic question, but after Googling around I can't seem to find the answer. What I need is a way to log some custom output with log4j during Spring bean construction. I have a factory class called ResponderFactory (being used as an instance factory in Spring) with a factory method that can throw 2 different types of exception. public CollectorResponder collectorResponder(String inputQueueName) throws ConfigurationException, BrokerConnectionException {} Now, normally I could wrap a call to this method in a try-catch block with 2 catch clauses to handle the logging situations for each of the exceptions. However, if I'm using Spring to inject this CollectorResponder, created with the factory, into another class I don't see how this is possible. <bean id="responderFactory" class="com.package.ResponderFactory"> <constructor-arg index="0" ref="basicDispatcher" /> <constructor-arg index="1" value="http://localhost:9000" /> </bean> <bean id="collectorResponder" class="com.package.CollectorResponder" factory-bean="responderFactory" factory-method="collectorResponder"> <constructor-arg value="collector.in" /> </bean> <bean id="collectorConsumer" class="com.package.CollectorConsumer"> <constructor-arg ref="collectorResponder" /> </bean> Again, I want to catch these exceptions when the collectorResponder bean is instantiated. Right now I'm dealing with this is CollectorConsumer when I instantiate using new CollectorResponder(...). Is there any way I can do this?

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  • Does this use of Monitor.Wait/Pulse have a race condition?

    - by jw
    I have a simple producer/consumer scenario, where there is only ever a single item being produced/consumed. Also, the producer waits for the worker thread to finish before continuing. I realize that kind of obviates the whole point of multithreading, but please just assume it really needs to be this way (: This code doesn't compile, but I hope you get the idea: // m_data is initially null // This could be called by any number of producer threads simultaneously void SetData(object foo) { lock(x) // Line A { assert(m_data == null); m_data = foo; Monitor.Pulse(x) // Line B while(m_data != null) Monitor.Wait(x) // Line C } } // This is only ever called by a single worker thread void UseData() { lock(x) // Line D { while(m_data == null) Monitor.Wait(x) // Line E // here, do something with m_data m_data = null; Monitor.Pulse(x) // Line F } } Here is the situation that I am not sure about: Suppose many threads call SetData() with different inputs. Only one of them will get inside the lock, and the rest will be blocked on Line A. Suppose the one that got inside the lock sets m_data and makes its way to Line C. Question: Could the Wait() on Line C allow another thread at Line A to obtain the lock and overwrite m_data before the worker thread even gets to it? Supposing that doesn't happen, and the worker thread processes the original m_data, and eventually makes its way to Line F, what happens when that Pulse() goes off? Will only the thread waiting on Line C be able to get the lock? Or will it be competing with all the other threads waiting on Line A as well? Essentially, I want to know if Pulse()/Wait() communicate with each other specially "under the hood" or if they are on the same level with lock(). The solution to these problems, if they exist, is obvious of course - just surround SetData() with another lock - say, lock(y). I'm just curious if it's even an issue to begin with.

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  • Cannot show scene with Cocos2D when using UITabBarController

    - by gw1921
    Hi I'm new to Cocos2D but am having serious issues when trying to load a cocos scene in one of the UIViewControllers mixed with other normal UIKit UIViewControllers. My project uses a UITabBarController to manage four view controllers. Three are normal UIKit view controllers while one of them I want to use cocos2D for (to draw some sprites and animate them). The following is what I've done so far. In the applicationDidFinishLaunching method, I initialize cocos2D to use the window and take the first tabbarcontroller view: - (void)applicationDidFinishLaunching:(UIApplication *)application { if( ! [CCDirector setDirectorType:CCDirectorTypeDisplayLink] ) { [CCDirector setDirectorType:CCDirectorTypeDefault]; } [[CCDirector sharedDirector] setPixelFormat:kPixelFormatRGBA8888]; [CCTexture2D setDefaultAlphaPixelFormat:kTexture2DPixelFormat_RGBA8888]; [[CCDirector sharedDirector] setDisplayFPS:YES]; [[CCDirector sharedDirector] attachInView: window]; [[[CCDirector sharedDirector] openGLView] addSubview: tabBarController.view]; [window makeKeyAndVisible]; } Then in the third UIViewController code (where I want to use cocos2D) I do this (note: the view is being loaded from a NIB file which has a blank UIView and nothing else):\ - (void)viewDidLoad { [super viewDidLoad]; // 'scene' is an autorelease object. CCScene *myScene = [CCScene node]; // 'layer' is an autorelease object. MyLayer *myLayer = [MyLayer node]; // add layer as a child to scene [myScene addChild: myLayer]; [[CCDirector sharedDirector] runWithScene: myScene]; } However all I see is a blank white view and nothing else. If I call the following in viewdidLoad: [[CCDirector sharedDirector] attachInView: self.view]; The app crashes complaining that CCDirector is already attached. Please help!

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  • How to force c# binary int division to return a double?

    - by Wayne
    How to force double x = 3 / 2; to return 1.5 in x without the D suffix or casting? Is there any kind of operator overload that can be done? Or some compiler option? Amazingly, it's not so simple to add the casting or suffix for the following reason: Business users need to write and debug their own formulas. Presently C# is getting used like a DSL (domain specific language) in that these users aren't computer science engineers. So all they know is how to edit and create a few types of classes to hold their "business rules" which are generally just math formulas. But they always assume that double x = 3 / 2; will return x = 1.5 however in C# that returns 1. A. they always forget this, waste time debugging, call me for support and we fix it. B. they think it's very ugly and hurts the readability of their business rules. As you know, DSL's need to be more like natural language. Yes. We are planning to move to Boo and build a DSL based on it but that's down the road. Is there a simple solution to make double x = 3 / 2; return 1.5 by something external to the class so it's invisible to the users? Thanks! Wayne

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  • How to force c# binary int division to return a double?

    - by Wayne
    How to force double x = 3 / 2; to return 1.5 in x without the D suffix or casting? Is there any kind of operator overload that can be done? Or some compiler option? Amazingly, it's not so simple to add the casting or suffix for the following reason: Business users need to write and debug their own formulas. Presently C# is getting used like a DSL (domain specific language) in that these users aren't computer science engineers. So all they know is how to edit and create a few types of classes to hold their "business rules" which are generally just math formulas. But they always assume that double x = 3 / 2; will return x = 1.5 however in C# that returns 1. A. they always forget this, waste time debugging, call me for support and we fix it. B. they think it's very ugly and hurts the readability of their business rules. As you know, DSL's need to be more like natural language. Yes. We are planning to move to Boo and build a DSL based on it but that's down the road. Is there a simple solution to make double x = 3 / 2; return 1.5 by something external to the class so it's invisible to the users? Thanks! Wayne

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  • I'm having trouble with using std::stack to retrieve the values from a recursive function.

    - by Peter Stewart
    Thanks to the help I received in this post: http://stackoverflow.com/questions/2761918/how-do-i-use-this-in-a-member-function I have a nice, concise recursive function to traverse a tree in postfix order: void Node::postfix() { if (left != __nullptr) { left->postfix(); } if (right != __nullptr) { right->postfix(); } cout<<cargo<<"\n"; return; }; Now I need to evaluate the values and operators as they are returned. My problem is how to retrieve them. I tried the std::stack: #include <stack> stack <char*> s; void Node::postfix() { if (left != __nullptr) { left->postfix(); } if (right != __nullptr) { right->postfix(); } s.push(cargo); return; }; but when I tried to access it in main() while (!s.empty()) { cout<<s.top<<"\n"; s.pop; } I got the error: 'std::stack<_Ty::top': function call missing argument list; use '&std::stack<_Ty::top' to create a pointer to member' I'm stuck. Another question to follow shortly.

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  • What is the best way to process XML sent to WCF 3.5

    - by CRM Junkie
    I have to develop a WCF application in 3.5. The input will be sent in the form of XML and the response would be sent in the form of XML as well. A ASP.NET application will be consuming the WCF and sending/receiving data in XML format. Now, as per my understanding, when consuming WCF from an ASP.NET application, we just add a reference to the service, create an object of the service, pack all the necessary data(Data Members in WCF) into the input object (object of the Data Contract) and call the necessary function. It happens that the ASP.NET application is being developed by a separate party and they are hell bent on receiving and sending data in XML format. What I can perceive from this is that the WCF will take the XML string (a single Data Member string type) as input and send out a XML string (again a single Data Member string type) as output. I have created WCF applications earlier where requests and responses were sent out in XML/JSON format when it was consumed by jQuery ajax calls. In those cases, the XML tags were automatically mapped to the different Data Members defined. What approach should I take in this case? Should I just take a string as input (basically the XML string) or is there any way WCF/.NET 3.5 will automatically map the XML tags with the Data Members for requests and responses and I would not need to parse the XML string separately?

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  • Design to distribute work when generating task oriented input for legacy dos application?

    - by TheDeeno
    I'm attempting to automate a really old dos application. I've decided the best way to do this is via input redirection. The legacy app (menu driven) has many tasks within tasks with branching logic. In order to easily understand and reuse the input for these tasks, I'd like to break them into bit size pieces. Since I'll need to start a fresh app on each run, repeating a context to consume a bit might be messy. I'd like to create an object model that: allows me to concentrate on the task at hand allows me to reuse common tasks from different start points prevents me from calling a task from the wrong start point To be more explicit, given I have the following task hierarchy: START A A1 A1a A1b A2 A2a B B1 B1a I'd like an object model that lets me generate an input file for task "A1b" buy using building blocks like: START -> do_A, do_A1, do_A1b but prevents me from: START -> do_A1 // because I'm assuming a different call chain from above This will help me write "do_A1b" because I can always assume the same starting context and will simplify writing "do_A1a" because it has THE SAME starting context. What patterns will help me out here? I'm using ruby at the moment so if dynamic language features can help, I'm game.

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  • ClassNotFoundException when connecting to Mysql with JDBC

    - by Jacob Lyles
    I'm getting the following error when I try to run a simple Java JDBC program at the command line: Exception in thread "main" java.lang.NoClassDefFoundError: LoadDriver/java Caused by: java.lang.ClassNotFoundException: LoadDriver.java at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) Here's the simple Java program, copied right out of the JDBC docs: import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; // Notice, do not import com.mysql.jdbc.* // or you will have problems! public class LoadDriver { public static void main(String[] args) { try { // The newInstance() call is a work around for some // broken Java implementations Class.forName("com.mysql.jdbc.Driver").newInstance(); } catch (Exception ex) { throw ex; // handle the error } } } Problem is, I'm bloody sure my bash shell $ClASSPATH variable is pointed at the correct .jar file. To be sure, I copied the JDBC .jar to the same directory as my program and ran it as follows: java -classpath ./mysql-connector-java-5.1.12-bin.jar LoadDriver.java I still get the same error. I'm running under Mac OSX, if it matters.

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  • JPA - Setting entity class property from calculated column?

    - by growse
    I'm just getting to grips with JPA in a simple Java web app running on Glassfish 3 (Persistence provider is EclipseLink). So far, I'm really liking it (bugs in netbeans/glassfish interaction aside) but there's a thing that I want to be able to do that I'm not sure how to do. I've got an entity class (Article) that's mapped to a database table (article). I'm trying to do a query on the database that returns a calculated column, but I can't figure out how to set up a property of the Article class so that the property gets filled by the column value when I call the query. If I do a regular "select id,title,body from article" query, I get a list of Article objects fine, with the id, title and body properties filled. This works fine. However, if I do the below: Query q = em.createNativeQuery("select id,title,shorttitle,datestamp,body,true as published, ts_headline(body,q,'ShortWord=0') as headline, type from articles,to_tsquery('english',?) as q where idxfti @@ q order by ts_rank(idxfti,q) desc",Article.class); (this is a fulltext search using tsearch2 on Postgres - it's a db-specific function, so I'm using a NativeQuery) You can see I'm fetching a calculated column, called headline. How do I add a headline property to my Article class so that it gets populated by this query? So far, I've tried setting it to be @Transient, but that just ends up with it being null all the time.

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  • custom wordpress page

    - by sharon
    I'd like to implement a custom post retrieval page in wordpress. Basically, I'm using AJAX to call this page that will be passed a post ID and retrieve certain data from that post. Note: please don't mistake this as a template question. I do not want a template for one single page -- I am looking to make this page query multiple different posts based on postID and return certain data from that post. So I tried creating a page <?php $args=array( 'p'=>'77' ); $friends = new WP_Query($args); ?> <?php if ($friends->have_posts()) : the_post(); ?> <?php the_title(); ?> <?php the_content(); ?> <?php else: ?> <p>Sorry, no posts are available.</p> <?php endif; ?> But this does not work since it is not loading in the wp functions to handle the query. Thanks in advance for any help!

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  • How can I implement a proper counter bean with EJB 3.0?

    - by Aaron Digulla
    I have this entity bean: import javax.persistence.*; @Entity public class CounterTest { private int id; private int counter; @Id public int getId() { return id; } public void setId(int id) { this.id = id; } public int getCounter() { return counter; } public void setCounter(int counter) { this.counter = counter; } } and this stateful bean to increment a counter: import java.rmi.RemoteException; import javax.ejb.*; import javax.persistence.*; @Stateful public class CounterTestBean implements CounterTestRemote { @PersistenceContext(unitName = "JavaEE") EntityManager manager; public void initDB() { CounterTest ct = new CounterTest(); ct.setNr(1); ct.setWert(1); manager.persist(ct); } public boolean testCounterWithLock() { try { CounterTest ct = manager.find(CounterTest.class, 1); manager.lock(ct, LockModeType.WRITE); int wert = ct.getWert(); ct.setWert(wert + 1); manager.flush(); return true; } catch (Throwable t) { return false; } } } When I call testCounterWithLock() from three threads 500 times each, the counter gets incremented between 13 and 1279 times. How do I fix this code so that it is incremented 1500 times?

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  • Using one mixin from LESS within another mixin

    - by user1165984
    I am trying to use a mix that calculates the base line height in another that contains my base font styles. Each time I try to compile, I get an error. Here is an example. .lineHeight(@sizeValue){ @remValue: @sizeValue; @pxValue: (@sizeValue * 10); line-height: ~"@{pxValue}px"; line-height: ~"@{remValue}rem"; } .baseFont(@weight: normal, @size: 14px, @lineHeight: (.lineHeight(2.1)) { font-family: @fontFamily; font-size: @size; font-weight: @weight; line-height: @lineHeight; } The error is: TypeError: Cannot call method 'charAt' of undefined at getLocation (/Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:212:34) at new LessError (/Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:221:19) at Object.toCSS (/Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:385:31) at /Applications/CodeKit.app/Contents/Resources/engines/less/bin/lessc:107:28 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:434:40 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:94:48 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/index.js:116:17 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:434:40 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/parser.js:94:48 at /Applications/CodeKit.app/Contents/Resources/engines/less/lib/less/index.js:116:17

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  • Read StandardOutput Process from BackgroundWorkerProcess method

    - by Nicola Celiento
    Hi all, I'm working with a BackgroundWorker Process from Windows .NET C# application. From the async method I call many instance of cmd.exe Process (foreach), and read from StandardOutput, but at the 3-times cycle the ReadToEnd() method throw Timeout Exception. Here the code: StreamWriter sw = null; DataTable dt2 = null; StringBuilder result = null; Process p = null; for(DataRow dr in dt1.Rows) { arrLine = new string[4]; //new row result = new StringBuilder(); arrLine[0] = dr["ID"].ToString(); arrLine[1] = dr["ChangeSet"].ToString(); #region Initialize Process CMD p = new Process(); ProcessStartInfo info = new ProcessStartInfo(); info.FileName = "cmd.exe"; info.CreateNoWindow = true; info.RedirectStandardInput = true; info.RedirectStandardOutput = true; info.RedirectStandardError = true; info.UseShellExecute = false; p.StartInfo = info; p.Start(); sw = new StreamWriter(p.StandardInput.BaseStream); #endregion using (sw) { if (sw.BaseStream.CanWrite) { sw.WriteLine("cd " + this.path_WORKDIR); sw.WriteLine("tfpt getcs /changeset:" + arrLine[1]); } } string strError = p.StandardError.ReadToEnd(); // Read shell error output commmand (TIMEOUT) result.Append(p.StandardOutput.ReadToEnd()); // Read shell output commmand sw.Close(); sw.Dispose(); p.Close(); p.Dispose(); } Timeout is on code line: string strError = p.StandardError.ReadToEnd(); Can you help me? Thanks!

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  • Running Flask framework on App Engine: Could not find module app.cgi

    - by Linc
    I'm running this Flask example app on App Engine: http://github.com/gigq/flasktodo You can see on the github page that app.cgi is in the main directory for this project. However, when I run this code I get an error complaining about a missing app.cgi: ERROR 2010-05-01 16:43:47,006 dev_appserver.py:2109] Encountered error loading module "app.cgi": <type 'exceptions.ImportError'>: Could not find module app.cgi Traceback (most recent call last): File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 2096, in LoadTargetModule module_code = import_hook.get_code(module_fullname) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1279, in Decorate return func(self, *args, **kwargs) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1956, in get_code full_path, search_path, submodule = self.GetModuleInfo(fullname) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1279, in Decorate return func(self, *args, **kwargs) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1908, in GetModuleInfo submodule, search_path = self.GetParentSearchPath(fullname) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1279, in Decorate return func(self, *args, **kwargs) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1887, in GetParentSearchPath parent_package = self.GetParentPackage(fullname) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1279, in Decorate return func(self, *args, **kwargs) File "/opt/google_appengine/google/appengine/tools/dev_appserver.py", line 1864, in GetParentPackage raise ImportError('Could not find module %s' % fullname) ImportError: Could not find module app.cgi How do I indicate to dev_appserver.py where to look to find it?

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  • How to return a recordset from a function

    - by Scott
    I'm building a data access layer in Excel VBA and having trouble returning a recordset. The Execute() function in my class is definitely retrieving a row from the database, but doesn't seem to be returning anything. The following function is contained in a class called DataAccessLayer. The class contains functions Connect and Disconnect which handle opening and closing the connection. Public Function Execute(ByVal sqlQuery as String) As ADODB.recordset Set recordset = New ADODB.recordset Dim recordsAffected As Long ' Make sure we are connected to the database. If Connect Then Set command = New ADODB.command With command .ActiveConnection = connection .CommandText = sqlQuery .CommandType = adCmdText End With ' These seem to be equivalent. 'Set recordset = command.Execute(recordsAffected) recordset.Open command.Execute(recordsAffected) Set Execute = recordset recordset.ActiveConnection = Nothing recordset.Close Set command = Nothing Call Disconnect End If Set recordset = Nothing End Function Here's a public function that I'm using in cell A1 of my spreadsheet for testing. Public Function Scott_Test() Dim Database As New DataAccessLayer 'Dim rs As ADODB.recordset 'Set rs = CreateObject("ADODB.Recordset") Set rs = New ADODB.recordset Set rs = Database.Execute("SELECT item_desc_1 FROM imitmidx_sql WHERE item_no = '11001'") 'rs.Open Database.Execute("SELECT item_desc_1 FROM imitmidx_sql WHERE item_no = '11001'") 'rs.Open ' This never displays. MsgBox rs.EOF If Not rs.EOF Then ' This is displaying #VALUE! in cell A1. Scott_Test = rs!item_desc_1 End If rs.ActiveConnection = Nothing Set rs = Nothing End Function What am I doing wrong?

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  • javascript: what does this syntax means?

    - by user1067138
    it is like this: (function () { //codes here })(); here is an example: (function () { var D = TED.EditorCore, E = TED.extend, A = TED.EditorInstanceManager, B = TED.augmentObject; window.TED["SimpleEditor"] = C; function C(F) { C.superclass.call(this, F) } C.defaultConfig = { height: "100px", width: "400px", //blablabla... flashNumLimit: 10, didaDelay: 300, imageWidthLimit: 570 }; E(C, D, { getContentLength: function () { return Math.ceil(this.filteHTML(this.editArea.innerHTML, ["img", "br"]).replace(/<img[^>]*>/gi, "mm").replace(/<br[^>]*>/gi, "m").replace(/&nbsp;/gi, "m").replace(/[^\x00-\xff]/g, "mm").length / 2) }, filteEditHTML: function () { return html = this.editArea.innerHTML.replace(/_moz_dirty=""/gi, "").replace(/\[/g, "[[-").replace(/\]/g, "-]]").replace(new RegExp("<\\/?(?:br[^>]*)>", "gi"), "[$1]").replace(new RegExp('<span([^>]*class="?at"?[^>]*)>', "gi"), "[span$1]").replace(new RegExp('<img([^>]*class="?(?:' + this.config.emptyClassName + "|" + this.config.smileyClassName + ')"?[^>]*)>', "gi"), "[img$1]").replace(/<[^>]*>/g, "").replace(/\[\[\-/g, "[").replace(/\-\]\]/g, "]").replace(new RegExp("\\[(/?(?:br|img|span)[^\\]]*)\\]", "gi"), "<$1>") }, filteSubmitHTML: function () { this.reLayout(); var G = this.editArea.innerHTML.replace(/_moz_dirty=""/gi, "").replace(/\[/g, "[[-").replace(/\]/g, "-]]").replace(new RegExp("<(/?(?:" + this.submitValidHTML.join("|") + ")[^>]*)>", "gi"), "[$1]").replace(new RegExp('<img([^>]*class="?(?:' + this.config.imageClassName + "|" + this.config.smileyClassName + "|" + this.config.flashClassName + "|" + this.config.musicClassName + ')"?[^>]*)>', "gi"), "[img$1]").replace(/<[^>]*>/g, "").replace(/\[\[\-/g, "[").replace(/\-\]\]/g, "]").replace(new RegExp("\\[(/?(?:" + this.submitValidHTML.join("|") + "|img)[^\\]]*)\\]", "gi"), "<$1>"); var F = document.createElement("div"); F.innerHTML = G; this.parseURL(F); return F.innerHTML } }); B(C, A) })(); what exactly does (funtion (){})(); do?

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  • RadAjaxManager problem when showing/hiding control on page loading

    - by Lukasz Lysik
    I have the webform with dropdown list, label and textbox. Like below: <asp:DropDownList ID="ddlTest" runat="server" AutoPostBack="true"> </asp:DropDownList> <asp:Label ID="lblTest" runat="server" Text="Some text"> </asp:Label> <asp:TextBox ID="edtTest" runat="server"> </asp:TextBox> I want to show/hide label and text box depending on the value selected on dropdown list. So I've added RadAjaxManader: <rad:RadAjaxManager ID="RadAjaxManager1" runat="server"> <AjaxSettings> <rad:AjaxSetting AjaxControlID="ddlTest"> <UpdatedControls> <rad:AjaxUpdatedControl ControlID="lblTest" /> <rad:AjaxUpdatedControl ControlID="edtTest" /> </UpdatedControls> </rad:AjaxSetting> </AjaxSettings> </rad:RadAjaxManager> and procedure "SetupVisibility" which takes value from the dropdown list, does some walidations and desides whether to show or hide the label and the text box. When I use the procedure like this: Protected Sub ddlTest_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlTest.SelectedIndexChanged SetupVisibility() End Sub it works good, but now I want to call SetupVisibility when the page is loaded: Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init SetupVisibility() End Sub The problem occurs in such a scenario: SetupVisibility() hides textbox and label while page is loaded. I change value on ddlTest dropdown list. SetupVisibility() wants to show textbox and label, but then I get the error: Microsoft JScript - runtime error: Cannot update control with ID: ctl00_CPH1_lblTest. The control does not exist. Where is the problem?

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  • asp.net mvc insert doesnt seem to work for me....

    - by Pandiya Chendur
    My controller's call to repository insert method all the values are passed but it doesn't get inserted in my table.. My controller method, [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create([Bind(Exclude = "Id")]FormCollection collection) { try { MaterialsObj materialsObj = new MaterialsObj(); materialsObj.Mat_Name = collection["Mat_Name"]; materialsObj.Mes_Id = Convert.ToInt64(collection["MeasurementType"]); materialsObj.Mes_Name = collection["Mat_Type"]; materialsObj.CreatedDate = System.DateTime.Now; materialsObj.CreatedBy = Convert.ToInt64(1); materialsObj.IsDeleted = Convert.ToInt64(1); consRepository.createMaterials(materialsObj); return RedirectToAction("Index"); } catch { return View(); } } and my repository, public MaterialsObj createMaterials(MaterialsObj materialsObj) { Material mat = new Material(); mat.Mat_Name = materialsObj.Mat_Name; mat.Mat_Type = materialsObj.Mes_Name; mat.MeasurementTypeId = materialsObj.Mes_Id; mat.Created_Date = materialsObj.CreatedDate; mat.Created_By = materialsObj.CreatedBy; mat.Is_Deleted = materialsObj.IsDeleted; db.Materials.InsertOnSubmit(mat); return materialsObj; } What am i missing here any suggestion....

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  • Nonetype object has no attribute '__getitem__'

    - by adohertyd
    I am trying to use an API wrapper downloaded from the net to get results from the new azure Bing API. I'm trying to implement it as per the instructions but getting the runtime error: Traceback (most recent call last): File "bingwrapper.py", line 4, in <module> bingsearch.request("affirmative action") File "/usr/local/lib/python2.7/dist-packages/bingsearch-0.1-py2.7.egg/bingsearch.py", line 8, in request return r.json['d']['results'] TypeError: 'NoneType' object has no attribute '__getitem__' This is the wrapper code: import requests URL = 'https://api.datamarket.azure.com/Data.ashx/Bing/SearchWeb/Web?Query=%(query)s&$top=50&$format=json' API_KEY = 'SECRET_API_KEY' def request(query, **params): r = requests.get(URL % {'query': query}, auth=('', API_KEY)) return r.json['d']['results'] The instructions are: >>> import bingsearch >>> bingsearch.API_KEY='Your-Api-Key-Here' >>> r = bingsearch.request("Python Software Foundation") >>> r.status_code 200 >>> r[0]['Description'] u'Python Software Foundation Home Page. The mission of the Python Software Foundation is to promote, protect, and advance the Python programming language, and to ...' >>> r[0]['Url'] u'http://www.python.org/psf/ This is my code that uses the wrapper (as per the instructions): import bingsearch bingsearch.API_KEY='abcdefghijklmnopqrstuv' r = bingsearch.request("affirmative+action")

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  • Design: Website calling a webservice on the same machine

    - by Chris L
    More of a design/conceptual question. At work the decision was made to have our data access layer be called through webservices. So our website would call the webservices for any/all data to and from the database. Both the website & the webservices will be on the same machine(so no trip across the wire), but the database is on a separate machine(so that would require a trip across the wire regardless). This is all in-house, the website, webservice, and database are all within the same company(AFAIK, the webservices won't be reused by another other party). To the best of my knowledge: the website will open a port to the webservices, and the webservices will in turn open another port and go across the wire to the database server to get/submit the data. The trip across the wire can't be avoided, but I'm concerned about the webservices standing in the middle. I do agree there needs to be distinct layers between the functionality(such as business layer, data access layer, etc...), but this seems overly complex to me. I'm also sensing there will be some performance problems down the line. Seems to me it would be better to have the (DAL)assemblies referenced directly within the solution, thus negating the first port to port connection. Any thoughts(or links) both for and against this idea would be appreciated P.S. We're a .NET shop(migrating from vb to C# 3.5)

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  • Method binding to base method in external library can't handle new virtual methods "between"

    - by Berg
    Lets say I have a library, version 1.0.0, with the following contents: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { } and I reference this library in a console application with the following contents: class Program { static void Main( string[] args ) { var c3 = new Class3(); c3.Test(); Console.ReadKey(); } } public class Class3 : ClassLibrary1.Class2 { public override void Test() { Console.WriteLine("Console:Class3 - Test"); base.Test(); } } Running the program will output the following: Console:Class3 - Test Library:Class1 - Test If I build a new version of the library, version 2.0.0, looking like this: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test V2" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { public override void Test() { Console.WriteLine("Library:Class2 - Test V2"); base.Test(); } } and copy this version to the bin folder containing my console program and run it, the results are: Console:Class3 - Test Library:Class1 - Test V2 I.e, the Class2.Test method is never executed, the base.Test call in Class3.Test seems to be bound to Class1.Test since Class2.Test didn't exist when the console program was compiled. This was very surprising to me and could be a big problem in situations where you deploy new versions of a library without recompiling applications. Does anyone else have experience with this? Are there any good solutions? This makes it tempting to add empty overrides that just calls base in case I need to add some code at that level in the future...

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  • Use $_FILES on a page called by .ajax

    - by RachelD
    I have two .php pages that I'm working with. Index.php has a file upload form that posts back to index.php. I can access the $_FILES no problem on index.php after submitting the form. My issue is that I want (after the form submit and the page loads) to use .ajax (jQuery) to call another .php file so that file can open and process some of the rows and return the results to ajax. The ajax then displays the results and recursively calls itself to process the next batch of rows. Basically I want to process (put in the DB etc) the csv in chunks and display it for the user in between chunks. Im doing it this way because the files are 400,000+ rows and the user doesnt want to wait the 10+ min for them all to be processed. I dont want to move this file (save it) because I just need to process it and throw it away and if a user closes the page while its processing the file wont be thrown away. I could cron script it but I dont want to. What I would really like to do is pass the (single) $_FILES through .ajax OR Save it in a $_POST or $_SESSION to use on the second page. Is there any hope for my cause? Heres the ajax code if that helps: function processCSV(startIndex, length) { $.ajax({ url: "ajax-targets/process-csv.php", dataType: "json", type: "POST", data: { startIndex: startIndex, length: length }, timeout: 60000, // 1000 = 1 sec success: function(data) { // JQuery to display the rows from the CSV var newStart = startIndex+length; if(newStart <= data['csvNumRows']) { processCSV(newStart, length); } } }); } processCSV(1, 2); }); P.S. I did try this Passing $_FILES or $_POST to a new page with PHP but its not working for me :( SOS.

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  • calling a stored proc over a dblink

    - by neesh
    I am trying to call a stored procedure over a database link. The code looks something like this: declare symbol_cursor package_name.record_cursor; symbol_record package_name.record_name; begin symbol_cursor := package_name.function_name('argument'); loop fetch symbol_cursor into symbol_record; exit when symbol_cursor%notfound; -- Do something with each record here, e.g.: dbms_output.put_line( symbol_record.field_a ); end loop; CLOSE symbol_cursor; When I run this from the same DB instance and schema where package_name belongs to I am able to run it fine. However, when I run this over a database link, (with the required modification to the stored proc name, etc) I get an oracle error: ORA-24338: statement handle not executed. The modified version of this code over a dblink looks like this: declare symbol_cursor package_name.record_cursor@db_link_name; symbol_record package_name.record_name@db_link_name; begin symbol_cursor := package_name.function_name@db_link_name('argument'); loop fetch symbol_cursor into symbol_record; exit when symbol_cursor%notfound; -- Do something with each record here, e.g.: dbms_output.put_line( symbol_record.field_a ); end loop; CLOSE symbol_cursor;

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  • How to cast sockaddr_storage and avoid breaking strict-aliasing rules

    - by sinoth
    I'm using Beej's Guide to Networking and came across an aliasing issue. He proposes a function to return either the IPv4 or IPv6 address of a particular struct: 1 void *get_in_addr( struct sockaddr *sa ) 2 { 3 if (sa->sa_family == AF_INET) 4 return &(((struct sockaddr_in*)sa)->sin_addr); 5 else 6 return &(((struct sockaddr_in6*)sa)->sin6_addr); 7 } This causes GCC to spit out a strict-aliasing error for sa on line 3. As I understand it, it is because I call this function like so: struct sockaddr_storage their_addr; ... inet_ntop(their_addr.ss_family, get_in_addr((struct sockaddr *)&their_addr), connection_name, sizeof connection_name); I'm guessing the aliasing has to do with the fact that the their_addr variable is of type sockaddr_storage and another pointer of a differing type points to the same memory. Is the best way to get around this sticking sockaddr_storage, sockaddr_in, and sockaddr_in6 into a union? It seems like this should be well worn territory in networking, I just can't find any good examples with best practices. Also, if anyone can explain exactly where the aliasing issue takes place, I'd much appreciate it.

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