Search Results

Search found 20817 results on 833 pages for 'general exception'.

Page 534/833 | < Previous Page | 530 531 532 533 534 535 536 537 538 539 540 541  | Next Page >

• How do I confirm a pdf loaded correctly with Watir webdriver testing

  - by Mike Rose

  This is a general type question that I dont know what code I could post that would help get an answer. So I apologize in advance, but if some piece of code would help, please let me know and Ill add it. The question is, how do I confirm that a pdf loaded in a web browser when using Ruby/Cucumber/Watir Webdriver? My test clicks on a random link that should load a pdf in a new browser window, so I cant check the url because it will vary with each test. Any ideas how I can make sure the correct pdf loads after clicking the link that should load it?

  Read the article

• Java: JSP halt execution on rest of page

  - by bguiz

  Hi, How do you stop a JSP from executing? I have JSPs which kick the user off a page by means of a "forward". public boolean kickIfNotLoggedIn( HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { //code to check if user is logged in req.getRequestDispatcher( ACCESS_DENIED_PAGE).forward(request, response); } In my JSP, I have this code, BEFORE any HTML output: <% //loginHelper.kickIfNotLoggedIn(request, response); if (!loginHelper.kickIfNotLoggedIn(request, response)) { return; } %> If I don't use the return statement, the JSP continues processing, and I get a NullPointerException. If I use the return statement (as is commonly suggested on various sources on the net), I get an IllegalStateException: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response at org.apache.coyote.tomcat5.CoyoteResponse.getWriter(CoyoteResponse.java:717) at org.apache.coyote.tomcat5.CoyoteResponseFacade.getWriter(CoyoteResponseFacade.java:226) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:187) Any ideas how to fix this, or another way to achieve an access denied page? Thanks

  Read the article

• How to append text into text file dynamically

  - by niraj deshmukh

  [12] key1=val1 key2=val2 key3=val3 key4=val4 key5=val5 [13] key1=val1 key2=val2 key3=val3 key4=val4 key5=xyz [14] key1=val1 key2=val2 key3=val3 key4=val4 key5=val5 I want to update key5=val5 where [13]. try { br = new BufferedReader(new FileReader(oldFileName)); bw = new BufferedWriter(new FileWriter(tmpFileName)); String line; while ((line = br.readLine()) != null) { System.out.println(line); if (line.contains("[13]")) { while (line.contains("key5")) { if (line.contains("key5")) { line = line.replace("key5", "key5= Val5"); bw.write(line+"\n"); } } } } } catch (Exception e) { return; } finally { try { if(br != null) br.close(); } catch (IOException e) { // } try { if(bw != null) bw.close(); } catch (IOException e) { // } }

  Read the article

• In Javascript, by what mechanism does setting an Image src property trigger an image load?

  - by brainjam

  One of the things you learn early on when manipulating a DOM using Javascript is the following pattern: var img = new Image(); // Create new Image object img.onload = function(){ // execute drawImage statements here } img.src = 'myImage.png'; // Set source path As far as I know, in general when you set an object property there are no side effects. So what is the mechanism for triggering an image load? Is it just magic? Or can I use a similar mechanism to implement a class Foo that supports a parallel pattern? var foo = new Foo(); // Create new object foo.barchanged = function(){ // execute something after side effect has completed } foo.bar = 'whatever'; // Assign something to 'bar' property I'm vaguely aware of Javascript getters and setters. Is this how Image.src triggers a load?

  Read the article

• Google App Engine Application Error 5

  - by Sam

  I frequently get this Application error. What does this mean ? File "/base/data/home/apps/0xxopdp/10.347467753731922836/matrices.py", line 215, in insert_into_db obj.put() File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 895, in put return datastore.Put(self._entity, config=config) File "/base/python_runtime/python_lib/versions/1/google/appengine/api/datastore.py", line 404, in Put return _GetConnection().async_put(config, entities, extra_hook).get_result() File "/base/python_runtime/python_lib/versions/1/google/appengine/datastore/datastore_rpc.py", line 601, in get_result self.check_success() File "/base/python_runtime/python_lib/versions/1/google/appengine/datastore/datastore_rpc.py", line 572, in check_success rpc.check_success() File "/base/python_runtime/python_lib/versions/1/google/appengine/api/apiproxy_stub_map.py", line 502, in check_success self.__rpc.CheckSuccess() File "/base/python_runtime/python_lib/versions/1/google/appengine/api/apiproxy_rpc.py", line 126, in CheckSuccess raise self.exception ApplicationError: ApplicationError: 5 I do make many calls to the datastore. What caused this problem ?

  Read the article

• Trouble getting email attachment from Exchange

  - by JimR

  I am getting the error message “The remote server returned an error: (501) Not Implemented.” when I try to use the HttpWebRequest.GetResponse() using the GET Method to get an email attachment from exchange. I have tried to change the HttpVersion and don’t think it is a permissions issue since I can search the inbox. I know my credentials are correct as they are used to get HREF using the HttpWebRequest.Method = Search on the inbox (https://mail.mailserver.com/exchange/testemailaccount/Inbox/). HREF = https://mail.mailserver.com/exchange/testemailaccount/Inbox/testemail.EML/attachment.csv Sample Code: HttpWebRequest req = (System.Net.HttpWebRequest) HttpWebRequest.CreateHREF); req.Method = "GET"; req.Credentials = this.mCredentialCache; string data = string.Empty; using (WebResponse resp = req.GetResponse()) { Encoding enc = Encoding.Default; if (resp == null) { throw new Exception("Response contains no information."); } using (StreamReader sr = new StreamReader(resp.GetResponseStream(), Encoding.ASCII)) { data = sr.ReadToEnd(); } }

  Read the article

• Is it "legal" for C++ runtime to call terminate() when the C++ code is used inside some non-C++ prog

  - by sharptooth

  In certain cases - especially when an exception escapes a destructor during stack unwinding - C++ runtime calls terminate() which must do something reasonable post-mortem and then exit the program. When a question "why so harsh" arises the answer is usually "there's nothing more reasonable to do in such error situations". That sounds reasonable if the whole program is in C++. Now what if the C++ code is in a library and the program that uses the library is not in C++? This happens quite often - for example I might have a native C++ COM component consumed by a .NET program. Once terminate() is called inside the component code the .NET program suddenly ends abnormally. The program author will first of all think "I don't care of C++, why the hell is this library make my program exit?" How do I handle the latter scenario when developing libraries in C++? Is it reasonable that terminate() unexpectedly ends the program? Is there a better way to handle such situations?

  Read the article

• How do you design a database to allow fast multicolumn searching?

  - by Fletcher Moore

  I am creating a real estate search from RETS data, but this is a general question. When you have a variety of columns that you would like the user to be able to filter their search result by, how do you optimize this? For example, http://www.charlestonrealestateguide.com/listings.php has 16 or so optional filters. Granted, he only has up to 11,000 entries (I have the same data), but I don't imagine the search is performed with just a giant WHERE AND AND AND ... clause. Or is this typically accomplished with one giant multicolumn index? Newegg, Amazon, and countless others also have cool & fast filtering systems for large amounts of data. How do they do it? And is there a database optimization reason for the tendency to provide ranges instead of empty inputs, or is that merely for user convenience?

  Read the article

• Is Graphics.DrawImage asynchronous?

  - by Roy

  Hi all, I was just wondering, is Graphics.DrawImage() asynchronous? I'm struggling with a thread safety issue and can't figure out where the problem is. if i use the following code in the GUI thread: protected override void OnPaint(PaintEventArgs e) { lock (_bitmapSyncRoot) { e.Graphics.DrawImage(_bitmap, _xPos, _yPos); } } And have the following code in a separate thread: private void RedrawBitmapThread() { Bitmap newBitmap = new Bitmap(_width, _height); // Draw bitmap // Bitmap oldBitmap = null; lock (_bitmapSyncRoot) { oldBitmap = _bitmap; _bitmap = newBitmap; } if (oldBitmap != null) { oldBitmap.Dispose(); } Invoke(Invalidate); } Could that explain an accessviolation exception? The code is running on a windows mobile 6.1 device with compact framework 3.5.

  Read the article

• Tying PyQt4 QAction triggered() to local class callable doesn't seem to work. How to debug this?

  - by Jon Watte

  I create this object when I want to create a QAction. I then add this QAction to a menu: class ActionObject(object): def __init__(self, owner, command): action = QtGui.QAction(command.name, owner) self.action = action self.command = command action.setShortcut(command.shortcut) action.setStatusTip(command.name) QtCore.QObject.connect(action, QtCore.SIGNAL('triggered()'), self.triggered) def triggered(self): print("got triggered " + self.command.id + " " + repr(checked)) Unfortunately, when the menu item is selected, the 'triggered' function is not called. QtCore.QObject.connect() returns True. Nothing is printed on the console to indicate that anything is wrong, and no exception is thrown. How can I debug this? (or, what am I doing wrong?)

  Read the article

• GUI design techniques to enhance user experience

  - by aku

  What techniques do you know\use to create user-friendly GUI ? I can name following techniques that I find especially useful: Non-blocking notifications (floating dialogs like in Firefox3 or Vista's pop-up messages in tray area) Absence of "Save" button MS OneNote as an example. IM clients can save conversation history automatically Integrated search Search not only through help files but rather make UI elements searchable. Vista made a good step toward such GUI. Scout addin Microsoft Office was a really great idea. Context oriented UI (Ribbon bar in MS Office 2007) Do you implement something like listed techniques in your software? Edit: As Ryan P mentioned, one of the best way to create usable app is to put yourself in user's place. I totally agree with it, but what I want to see in this topic is specific techniques (like those I mentioned above) rather than general recommendations.

  Read the article

• Can I configure a strongly typed data set to use nullable values?

  - by Dan Tao

  If I have a strongly typed data table with a column for values of type Int32, and this column allows nulls, then I'll get an exception if I do this for a row where the value is null: int value = row.CustomValue; Instead I need to do this: if (!row.IsCustomValueNull()) { int value = row.CustomValue; // do something with this value } Ideally I would like to be able to do this: int? value = row.CustomValue; Of course I could always write my own method, something like GetCustomValueOrNull; but it'd be preferable if the property auto-generated for the column itself simply returned a nullable. Is this possible?

  Read the article

• How to model dependency injection in UML ?

  - by hjo1620

  I have a Contract class. The contract is valid 1 Jan 2010 - 31 Dec 2010. It can be in state Active or Passive, depending on which date I ask the instance for it's state. ex. if I ask 4 July 2010, it's in state Active, but if I ask 1 Jan 2011, it's in state Passive. Instances are created using constructor dependency injection, i.e. they are either Active or Passive already when created, null is not allowed as a parameter for the internal state member. One initial/created vertex is drawn in UML. I have two arrows, leading out from the initial vertex, one leading to state Active and the other to state Passive. Is this a correct representation of dependency injection in UML ? This is related to http://stackoverflow.com/questions/2779922/how-model-statemachine-when-state-is-dependent-on-a-function which initiated the question on how to model DI in general, in UML.

  Read the article

• How to use UISwipeGestureRecognizer on UIButton?

  - by Ashutosh

  I have a UIbutton which i want to work as a joystick. So i am trying to add some gesture recognizer on the same button. I have this in my code right now: UISwipeGestureRecognizer *recognizer; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)]; [self.gestureRecieverButton addGestureRecognizer:recognizer]; [recognizer release]; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)]; [self.gestureRecieverButton addGestureRecognizer:recognizer]; [recognizer release]; -(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer { NSLog(@"Swipe received.%@",recognizer); } This is the error i am getting now: -[CUETutorialSixteenClusterRootController handleSwipeFrom:]: unrecognized selector sent to instance 0x79b71b0 2012-03-28 13:25:55.724 CUETrainer[1788:11f03] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CUETutorialSixteenClusterRootController handleSwipeFrom:]: unrecognized selector sent to instance 0x79b71b0' But its not actually doing anything. Please help!!!!

  Read the article

• Limit number of views per day in Django

  - by ariddell

  Is there an easy way to limit the number of times a view can be accessed by a given IP address per day/week? A simplified version of the technique used by some booksellers to limit the number of pages of a book you can preview? There's only one view that this limit need apply to--i.e. it's not a general limit--and it would be nice if I could just have a variable overlimit in the template context. The solution need not be terribly robust, but limiting by IP address seemed like a better idea than using a cookie. I've looked into the session middleware but it doesn't make any references to tracking IP addresses as far as I can tell. Has anyone encountered this problem?

  Read the article

• Zend Framework: how to remove rendered views in the controller?

  - by takpar

  i want to render one of these sets of views: head body-$id1 foot OR head body-$id2 foot which set exsists. i do it like this: try { $this->render("head"); $this->render("body-$id1"); $this->render("foot"); } catch (Exception $e) { $this->render("head"); $this->render("body-$id2"); $this->render("foot"); } but it causes the head view be rendered twice if body-$id1 does not exists. do you have a better solution? in another saying, may i check the existance of body-$id1 before rendering it?

  Read the article

• Please Find the error :

  - by jagdeep

  using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class Expt : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Bttnadd_Click(object sender, EventArgs e) { FileUpload1.SaveAs(MapPath("~/img//"+DateTime.Now.ToString()+FileUpload1.FileName)); } } Exception Details: System.Web.HttpException: ~/img//1/1/2011 1:47:52 PMWinter.jpg is not a valid virtual path.

  Read the article

• How to handle updating JDO class definitions on Google App Engine

  - by Spines

  I'm using the Google app engine and JDO. What is the best way to update a JDO class definition without having to wipe the data store contents first? I'm not sure if this is specific to JDO on GAE, but I noticed that when I simply change the name of one of my persistent fields from svotes to votes, an exception is thrown (java.lang.NoSuchFieldError: svotes). I expect once my site goes live I might want to make some changes to my JDO class definitions, such as adding a field or something. Any suggestions for how to update the data definitions without having to wipe the database?

  Read the article

• Error in executing

  - by Saranya.R

  Hi........ I am interested in sending tweets using Java program.I wrote the following prgram.It doen't show any error in compiling.But while executing it shows "Exception in thread "main" java.lang.NoClassDefFoundError: hi Caused by: java.lang.ClassNotFoundException: hi at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) Could not find the main class: hi. Program will exit." This is my code.. package twitter; //import java.lang.object; import net.unto.twitter.*; import net.unto.twitter.TwitterProtos.Status; public class hi { public static void main(String args[]) { Api api = Api.builder().username("usename").password("password").build(); api.updateStatus("This is a test message.").build().post(); } } Can anybody help me ..Pls

  Read the article

• Upgrade Oracle database from 9.2.0.7 to 9.2.0.8

  - by b_dws

  We are planning to upgrade from Oracle 9.2.0.7 to 9.2.0.8. Main reason of the proposed upgrade is to address the issue in relation to exception "terminated with error: ORA-00904: "T2"."SYS_DS_ALIAS_4": invalid identifier" when we try to execute DBMS_STATS.GATHER_SCHEMA_STATS. We are concerned that the proposed upgrade may have negative impact on our Java application or in the worst case may not even support by our Java application. What are the possible approaches or strategies that we can take to ensure the upgrade from Oracle 9.2.0.7 to 9.2.0.8 will not have adverse impact on our Java application or will not cause our Java application to function incorrectly. Essentially we just want to confirm that our application will still support Oracle 9.2.0.8. Thank you.

  Read the article

• Swing Timer in Conjunction with Possible Long-running Background Task

  - by javacavaj

  I need to perform a task repeatedly that affects both GUI-related and non GUI-related objects. One caveat is that no action should performed if the previous task had not completed when the next timer event is fired. My initial thoughts are to use a SwingTimer in conjunction with a javax.swing.SwingWorker object. The general setup would look like this. class { timer = new Timer(speed, this); timer.start(); public void actionPerformed(ActionEvent e) { SwingWorker worker = new SwingWorker() { @Override public ImageIcon[] doInBackground() { // potential long running task } @Override public void done() { // update GUI on event dispatch thread when complete } } } Some potential issues I see with this approach are: 1) Multiple SwingWorkers will be active if a worker has not completed before the next ActionEvent is fired by the timer. 2) A SwingWorker is only designed to be executed once, so holding a reference to the worker and reusing (is not?) a viable option. Is there a better way to achieve this?

  Read the article

• Php/ODBC encoding problem

  - by JohnM2

  I use ODBC to connect to SQL Server from PHP. In PHP I read some string (nvarchar column) data from SQL Server and then want to insert it to mysql database. When I try to insert such value to mysql database table I get this mysql error: Incorrect string value: '\xB3\xB9ow...' for column 'name' at row 1 For string with all ASCII characters everything is fine, the problem occurs when non-ASCII characters (from some European languages) exist. So, in more general terms: there is a Unicode string in MS SQL Server database, which is retrieved by PHP trough ODBC. Then it is put in sql insert query (as value for utf-8 varchar column) which is executed for mysql database. Can someone explain to me what is happening in this situation in terms of encoding? At which step what character encoding convertions may take place? I use: PHP 5.2.5, MySQL5.0.45-community-nt, MS Sql Server 2005.

  Read the article

• buffer overflow with boost::program_options

  - by f4

  Hello, I have a problem using boost:program_options this simple program, copy-pasted from boosts' documentation : #include <boost/program_options.hpp> int main( int argc, char** argv ) { namespace po = boost::program_options; po::options_description desc("Allowed options"); desc.add_options() ("help", "produce help message") ("compression", po::value<int>(), "set compression level") ; return 0; } fails with a buffer overflow. I have activated the "buffer security switch", and when I run it I get an "unknown exception (0xc0000409)" when I step over the line desc.add_options()... I use Visual Studio 2005 and boost 1.43.0. By the way it does run if I deactivate the switch but I don't feel comfortable doing so... unless it's possible to deactivate it locally. So do you have a solution to this problem? EDIT I found the problem I was linking against libboost_program_options-vc80-mt.lib which wasn't the good library.

  Read the article

• Updating only .dll of a reference in my ASP.NET Application

  - by Mike C.

  Hello, I have a deployed web application project that references my Utility.dll class library. I want to make a change to the Utlity.dll and roll only that .dll out. The problem is that when I do that, I get the following error when I try to launch my site: Could not load file or assembly 'Utility, Version=1.0.0.0, Culture=neutral, PublicKeyToken=3766481cef20a9d1' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Is there a setting I can change so I don't have to roll out the entire web application project - only the Utlity.dll? Thanks!

  Read the article

• Asp.Net C# DllImport problem

  - by user346665

  Hi, I want to import DLL file in my web site project. I have dll file "my.dll" in folder C:\DLLDir and I'm using the code : [DllImport("C:\\DLLDir\\my.dll", EntryPoint = "Out32")] This works ok. But I want to use relative path (web site root path) . I'm trying to put "my.dll" in "bin" or root folder and I'm using the code : [DllImport("my.dll", EntryPoint = "Out32")] but I'm getting the error: Unable to load DLL 'my.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) Any ideas?

  Read the article

< Previous Page | 530 531 532 533 534 535 536 537 538 539 540 541  | Next Page >