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  • ASP.NET MVC: How to serve content while returning status code 404?

    - by Marek
    I would like to serve a user friendly "not found" page in my ASP.NET MVC application while providing a 404 status code. (based on this answer) I already have the mechanism how to catch an invalid route and the custom 404 page is served by my ErrorController/Handle404 action. My current implementation of Handle404: public ActionResult Handle404() { Response.StatusCode = 404; return View("NotFound"); } Currently, IIS serves the page as 404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable. (the standard IIS page, not my user friendly content) How can I include the 404 status code in the result served by the Handle404 action while still serving the content?

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  • HttpWebRequest.GetResponse() - what specific status codes cause an exception to be thrown?

    - by H. Morrow
    I've hunted around for some definitive documentation on this but haven't had much luck finding any. Basically - the question is - for which HTTP Status codes coming back from the server will HttpWebRequest.GetResponse() generate a WebException after doing something like say, a POST? Specifically - will it generate a WebException for anything other than status 200 OK? Or will it only generate a WebException for say, 400, 404, and 500 (for the sake of argument). I want to know since, the server I'm communicating with defines anything other than HTTP 200 OK coming back as an error condition - and the key is, can I rely on a WebException being generated for anything other than 200? (I've currently written my code so that it'll actually check the return status code everytime to ensure it's 200 OK and if it's not, take appropriate action - but it's alot of duplication between that, and the catch block for a WebException, and I'm hoping to clean it up...) Any relevant links to documentation would be most appreciated. Thanks!

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  • Using Google Spreadsheet API on Blackberry

    - by Dev
    I am trying to build a Google spreadsheet synchronization feature on a blackberry application that I am building. Not being a pro I was hunting for some sample code to get a grasp of the flow but I could not. When I am using the API from Google to access spreadsheets, it suggests to use the SpreadsheetService class. try{ SpreadsheetService service = new SpreadsheetService ("MRythm"); service.setUserCredentials("username", "password"); service.getFeed(new URL(""), arg1) }catch(Exception e){ } Now the problem is J2ME or Blackberry does not feature the URL class from java.net library. I am just looking for a sample approach to connect to a Google spreadsheet from Blackberry. Thanks in advance

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  • List local administrators with System.DirectoryServices.AccountManagement doesn't retrieve domain us

    - by yajohn
    I'm trying to remotely list members of the local Administrators group. The following code returns only local accounts which are members of the admin group - no domain groups or individual accounts are returned at all (BLAH\Domain Admins or BLAH\yajohn, for instance). Anyone have an idea? Public Function listLocalAdmins(ByVal machinename As String, ByVal creduname As String, ByVal credpass As String) As String Try Dim mctx As New PrincipalContext(ContextType.Machine, machinename, creduname, credpass) Dim lcladmins As GroupPrincipal = GroupPrincipal.FindByIdentity(mctx, IdentityType.Name, "Administrators") Dim pc As PrincipalCollection = lcladmins.Members Dim r As New StringBuilder For Each p As Principal In pc r.Append("Name:->" & p.Name.ToString & vbCrLf) Next Return r.ToString Catch ex As Exception Return ex.Message End Try End Function Thanks for any feedback.

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  • Using Propel ORM in my own custom classes

    - by Stick it to THE MAN
    I am refactoring a few classes I wrote a while ago, into my Symfony project (v1.3.2 with Propel ORM). The classes originally used direct connections to the database, I want to refactor those classes (stored in $(SF_LIB_DIR)) so that I can call propel and also use the ORM objects. To clarify, So for example, I want to be able to use code like this in my custom classes: try { $con = Propel::getConnection(); $c = new Criteria(); $foo = new PropelORMFooObject(); $foobar = PropelORMFooBarObjectPeer::fetch($c); //set fields etc $foo->setFooBar($foobar); // now save using obtained connection .. $foo->save($con) }catch(SomeException $e) { //deal with it } I assume that I will need to add some require_once() statements to my custom libraries, but it is not clear which files to include. Does anyone know how to do this?

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  • jquery write protection in textarea for wildcards

    - by Juri
    Hi everybody. Does anyone know a possibilty to protect a string-wildcard from changing in a textarea? HTML: <textarea name="mail_text" id="mail_text"> {salutation} {recipient}, thanks for your email. Regards {username} </textarea> I would like to catch when someone tries to change one of the wildcards: {salutation},*{recipient}* and {username} $("textarea").keyup(function() { var val = $(this).val(); //protect the wildcards }); Thanks!

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  • How to handle runtime exception on playing audio files?

    - by Maxood
    I have a button that plays an audio file on its click listener. If the button is clicked again and again while the audio file is being played then the app crashes. What's the solution? Here is some code for reference: private OnClickListener btnMercyListener = new OnClickListener() { public void onClick(View v) { // Toast.makeText(getBaseContext(), // "Mercy audio file is being played", // Toast.LENGTH_LONG).show(); if (status==true) { mp.stop(); mp.release(); status = false; } else { mp = MediaPlayer.create(iMEvil.this,R.raw.mercy); //mp.start(); try{ mp.start(); status= true; //mp.release(); }catch(NullPointerException e) { Log.v("MP error",e.toString()); } } mp.setOnCompletionListener(new OnCompletionListener(){ // @Override public void onCompletion(MediaPlayer arg0) { mp.release(); status = false; } } ); } };

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  • Using OpenSessionInViewInterceptor with Hibernate and JSF 2

    - by sammy
    I'm building an application in Hibernate, Spring and JSF2 using only annotations. How can I take advantage of OpenSessionInViewInterceptor found in Spring to catch any hibernate session that might open within a bean? I'm trying to elegantly solve the common “failed to lazily initialize a collection of role: your.Class.assocation no session or session was closed.” problem when trying to read from a yet uninitialized list of POJOs inside another POJO (A Tag entity retrieved by a DAO that contains a List of Project objects I want to read). I've found this: http://www.paulcodding.com/blog/2008/01/21/using-the-opensessioninviewinterceptor-for-spring-hibernate3/ but failed to make use of it in my environment. Please provide a detailed answer, as the Internet is full of foggy, unhelpful tutorials. I'll also be greatful for an alternative solution, given a step-by-step instruction is provided.

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  • Retry web service call if authentication failure requires re-login

    - by Pete
    I'm consuming a web service from C#, and the web service requires a login call and then uses cookie sessions. The web service will time out sessions after a certain timeframe, after which the client will have to re-login. I'd like to find a way to automatically catch the soap fault the service sends back in this scenario, and handle it by re-logging in and then retrying the previously attempted call. I would prefer to do this somehow automatically for all the web service methods in question, rather than having to manually wrap the calls with the retry logic. Suggestions?

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  • How to get descriptive error messages from DB2?

    - by tangens
    When I call a SQL statement via JDBC on the DB2 and the statement fails, I catch an SQLException with the following message text: com.ibm.db2.jcc.a.nn: DB2 SQL Error: SQLCODE=-206, SQLSTATE=42703, SQLERRMC=O.METADATENSATZ, DRIVER=3.52.95 I tried an automatic translation of the message according to the error list published by IBM, but there are placeholders inside the messages referencing other elements of the exception. While looking for these elements inside the exception, I found the DB2ExceptionFormatter and tried to use it to access the missing elements. But here I stopped, because the DB2ExceptionFormatter gave me a clue: Error occurred while trying to obtain message text from server. Only message tokens are available. So my question is: What do I have to configure to get the correct messages from the DB2 server? If I can get a human readable message from the server, I could use it directly and wouldn't have to translate it by myself.

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  • Trouble parsing NMEA data from Serial Port.

    - by rross
    I'm retrieving NMEA sentences from a serial GPS. Then string are coming across like I would expect. The problem is that when parsing a sentence like this: $GPRMC,040302.663,A,3939.7,N,10506.6,W,0.27,358.86,200804,,*1A I use a simple bit of code to make sure I have the right sentect: string[] Words = sBuffer.Split(','); foreach (string item in Words) { if (item == "$GPRMC") { return "Correct Sentence"; } else { return "Incorrect Sentence } } I added the return in that location for the example. I have printed the split results to a text box and have seen that $GPRMC is indeed coming across in the item variable at some point. If the string is coming across why won't the if statement catch? Is is the $? How can I trouble shoot this?

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  • Write a MAT file without using matlab headers and libraries.

    - by YuppieNetworking
    Hello all, I have some data that I would like to save to a MAT file (version 4 or 5, or any version, for that matter). The catch: I wanted to do this without using matlab libraries, since this code will not necessary run in a machine with matlab. My program uses Java and C++, so any existing library in those languages that achieves this could help me out... I did some research but did not find anything in Java/C++. However, I found that scipy on python achieves this with mio4.py or mio5.py. I thought about implementing this on java or C++, but it seems a bit out of my time schedule. So the question is: is there any libraries in Java or C/C++ that permits saving MAT files without using Matlab libraries? Thanks a lot

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  • When to log exception?

    - by Rune
    try { // Code } catch (Exception ex) { Logger.Log("Message", ex); throw; } In the case of a library, should I even log the exception? Should I just throw it and allow the application to log it? My concern is that if I log the exception in the library, there will be many duplicates (because the library layer will log it, the application layer will log it, and anything in between), but if I don't log it in the library, it'll be hard to track down bugs. Is there a best practices for this?

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  • How to filter rows in JTable based on boolean valued columns?

    - by vinny
    Im trying to filter rows based on a column say c1 that contains boolean values. I want to show only rows that have 'true' in c1. I looked up the examples in http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting. The example uses a regex filter. Is there any way I can use boolean values to filter rows? Following is the code Im using (borrowed from the example) private void filter(boolean show) { RowFilter<TableModel, Object> filter = null; TableModel model = jTb.getModel(); boolean value = (Boolean) model.getValueAt(0,1); //If current expression doesn't parse, don't update. try { // I need to used 'value' to filter instead of filterText. filter =RowFilter.regexFilter(filterText, 0); } catch (java.util.regex.PatternSyntaxException e) { return; } sorter.setRowFilter(filter); } thank you.

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  • Visual studio 2010 doesn't make the changes when i do a build/compile a DLL file

    - by Tom
    Ok so i change some code, re-build it and then, say for arguments sake i had a print statement outputting 'test2', well if i change it to 'test3' its still re-producing the old code 'test2'. Ive deleted the debug folder and rebuilt but no good. Then randomly about 10 builds later it will catch up. Ive also closed VS2010 and then re-opened the project but that doesnt help. What can i do as i need to see the changes asap? ps it's definitely the correct file EDIT: I've done clean and rebuild but it hasnt done anything EDIT: This is a .dll file which im modifying

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  • How to stop worker threads in a multithreaded Windows service on service stop

    - by RobW
    I have a Windows service that uses the producer/consumer queue model with multiple worker threads processing tasks off a queue. These tasks can be very long running, in the order of many minutes if not hours, and do not involve loops. My question is about the best way to handle the service stop to gracefully end processing on these worker threads. I have read in another SO question that using thread.Abort() is a sign of bad design, but it seems that the service OnStop() method is only given a limited amount of time to finish before the service is terminated. I can do sufficient clean-up in the catch for ThreadAbortException (there is no danger of inconsistent state) so calling thread.Abort() on the worker threads seems OK to me. Is it? What are the alternatives?

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  • Is it possible to use Windows Authentication to logon to Axapta 4 (or 5) in a Website/webservice

    - by rdkleine
    Using this code I can not create a connection using IIS 7 with Windows Authentication. try { Axapta axapta = new Axapta(); axapta.Logon("", "", "", ""); //Or this> axapta.Logon("COMPANY", "NL-nl", "OBJECTSERVER", ""); System.Diagnostics.Debug.WriteLine("yep"); axapta.Logoff(); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.ToString()); } When changing App Pool Identity to a user with rights in Axapta then I can create a connection. So it seems like the App Pool Identity is used. Is it even possible to get this do without using the LogonAs method? Is there some other way short of asking the user for they're credentials? Appreciate any help on this, Ralf

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  • iOS6 Twitter integration

    - by Peter Warbo
    There seems to be a difference between the iPhone simulator and actual device when checking if Twitter is available. I check if a Twitter account is setup by using this code: [SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter]; In the simulator there is a nice UIAlertView informing the user that there are no Twitter accounts setup and two buttons one for Settings and one for Cancel. However when I run my app on my device it will not show the above UIAlertView. Why is that? And how can I catch what button is tapped in the above UIAlertView (since I did not instantiate it?) This is what it looks like on the simulator:

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  • c# reading integer fields from database, returning empty string when reading integer type field

    - by arnoldino
    what is wrong with this code? field="id"; table="MInvMonth"; condition="machine_id=37"; public static String getConditionedField(String field, String table, String condition) try { if (cmd == null) getConnection(); cmd.CommandText = "Select " + field + " from " + table + " where " + condition; SQLiteDataReader reader = cmd.ExecuteReader(); if (reader.HasRows==true) { reader.Read(); string s = reader[0].ToString(); // return first element reader.Close(); return s; } reader.Close(); return null; } catch (Exception e) { MessageBox.Show("Caught exception: " + e.Message+"|"+cmd.CommandText); return null; } I checked the sql statement, it turns the right value. why can't I read it? the returnvalue is "".

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  • Subsonic 3 Simple Repository And Transactions

    - by ChrisKolenko
    Hey everyone, So this is what I have so far. Am I doing something wrong or is there a bug in 3.0.0.3? var Repository = new SimpleRepository("DBConnectionName"); using (TransactionScope ts = new TransactionScope()) { using (SharedDbConnectionScope scs = new SharedDbConnectionScope("connstring", "providerName")) { try { for (int i = 0; i < 5; i++) { Supplier s = new Supplier(); s.SupplierCode = i.ToString(); s.SupplierName = i.ToString(); Repository.Add<Supplier>(s); } ts.Complete(); } catch { } } } I'm getting an error in SubSonic DbDataProvider public DbConnection CurrentSharedConnection { get { return __sharedConnection; } protected set { if(value == null) { __sharedConnection.Dispose(); etc.. __sharedConnection == null :( Object Null Reference Exception :(

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  • XML-RPC with java

    - by Mona
    hi, I'm developing a server in XML-RPC using Java , but when i compile it , i get this error ServeurSomDiff.java:33: cannot find symbol symbol : method addHandler(java.lang.String,java.lang.String) location: class org.apache.xmlrpc.webserver.WebServer server.addHandler("SOMDIFF",new ServeurSomDiff ()); here 's my server : import java.util.Hashtable; import org.apache.xmlrpc.webserver.*; public class ServeurSomDiff { public ServeurSomDiff (){ } public Hashtable sumAndDifference (int x, int y) { Hashtable result = new Hashtable(); result.put("somme", new Integer(x + y)); result.put("difference", new Integer(x - y)); return result; } public static void main (String [] args) { try { WebServer server = new WebServer(8000); server.addHandler("SOMDIFF",new ServeurSomDiff()); server.start(); System.out.println("Serveur lance sur http://localhost:8000/RPC2"); } catch (Exception exception) {System.err.println("JavaServer: " + exception.toString()); } } } any ideas on how to fix this . thanks

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  • SQL-Calculate percentages from database table values

    - by Howard
    Hi, Im trying to calculate the percentages of selected fields from tables. Within the fields that data is numeric but I want to show the percentage value. Please help. private void btnpics_Click(object sender, EventArgs e) { try { myCon.Open(); string queryString = "SELECT FoodType.Description,FoodType.Calories, FoodType.Carbohydrate, FoodType.Fat, FoodType.Protein FROM [FoodType], [Meal] WHERE (Meal.UserID =" + userid.Text + ") AND (Meal.MealDate =" + date.Text + ");"; MessageBox.Show(queryString); loadDataGrid(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); } }

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  • Exception on dowloading Pdf file in ASP.NET

    - by Sauron
    I am downloading a Pdf file created by crystal report and I download as ReportDocument repDoc = ( ReportDocument ) System.Web.HttpContext.Current.Session["StudyReportCrystalDocument"]; // Stop buffering the response Response.Buffer = false; // Clear the response content and headers Response.ClearContent(); Response.ClearHeaders(); try { repDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "StudyReport" ); } catch( Exception ex ) { } Eventhough it is working But I got an exception base {System.SystemException} = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.} Can anyone explain what is the reason for this and how to override the exception?

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  • Datacontracts property getter running twice

    - by user321426
    I have a set of data contracts that act as wrappers to base classes that we wish to expose. A quick example is: [DataMember] public List<decimal> Points { get { return sourceObject.ListPoints(); } private set{} } We have some other properties that we have to massage the data first (we are converting object graphs and need to guard against circular references). The issue that we are seeing is that this getter will fire twice, once within the service operation, then again during serialization. This is causing two problems: We manually add to collections, since this is running twice the collections are filled with dupes. If an exception is thrown during the second run, it happens outside of the try/catch in the operation, and does not throw a fault. The service throws a cryptic timeout message, and the only way to see the error is via WCF trace logs.

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  • Throwing an exception from a BackgroundWorker which calls an async. method (Webrequest)

    - by mrbamboo
    Hi, My main application creates a new BackgroundWorker X the DoWork event handler of X calls a method Y of my controller. This method creates the WebRequest (async.) instance and the callback using AsyncCallback. When the response arrives the callback method Z gets called and the content will be analyzed. It can happen that the response has an unwanted content. At that moment callback Z will throw an exception. I want to catch this exception in my main application. I tried it in DoWork and RunWorkerCompleted but nothing can be caught from there. Error in RunWorkerCompletedEventArgs is always null.

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