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• Hot to trigger saved password autofill in browsers?

  - by Aleksander Kmetec

  I have a web application written in pure JavaScript (no pre-generated HTML except for the document which loads all the JS files). This app contains a login form which is created dynamically when the document.ready event event is triggered. I trick the browser into displaying the "Remember password?" dialog by posting the login form into a hidden iframe before logging in using ajax (in Firefox the password appears on the saved password list, so this part obviously works) but saved passwords never get filled in after the login screen is loaded again at a later time. The same thing happens in Firefox and Safari. Is there something I can do or some function I can call to trigger autofill?

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• sql query to incrementally modify where condition until result contains what is required

  - by iamrohitbanga

  I need an sql query to select some items from a table based on some condition which is based on a category field. As an example consider a list of people and I fetch the people from a particular age group from the database. I want to check if the result contains at least one result from each of a number of categories. If not I want to modify the age group by extending it and check the results again. This is repeated until I get an age group for which one result is present for each category. Right now i am doing this by analyzing the results and modifying the sql query. So a number of sql select queries are sent. What is the most efficient way of doing this? I am invoking the select queries from a java program using jdbc. I am using mysql database.

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• Another Internet Explorer problem... JQuery events

  - by Parhs

  Here is my spaggeti code $("#table_exams tbody tr").click(function () { window.location.hash="#" +$(this).attr("exam_ID"); window.location.href="/medilab/prototypes/exams/edit?examId=" + $(this).attr("exam_ID") +"&referer=" + referer; row_select(this); }); $("#table_exams tbody tr td a").click(function () { window.location.hash="#" +$(this).parent().parent().attr("exam_ID"); var where="/medilab/prototypes/exams/edit?examId=" + $(this).parent().parent().attr("exam_ID") +"&referer=" + referer; window.open(where); row_select($(this).parent().parent()); alert("propaganda"); event.stopPropagation(); event.preventDefault(); return false; }); The problem is that when this function is triggered $("#table_exams tbody tr td a").click(function () { the other function is triggered also.... only in IE... What can i do for this????

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• The relationship between OPC and DCOM

  - by typoknig

  Hi all, I am trying to grasp the link between OPC and DCOM. I have watched all four of the tutorials here and I think I have a good feeling for what OPC is, but in one of the tutorials (the third one 35 seconds in) the narrator states that OPC is based on DCOM, but I do not understand how the two are really linked. My confusion comes from a question my professor posed in which he asked "How and where would you deploy OPC instead of DCOM and vice-versa." His question makes it seem like the two are not as linked as my research suggests. I'm not looking for anyone to answer the question, I just want to know the relation between OPC and DCOM, then I can figure the rest out. Specifically I would like to know if: 1.) One is always based on the other 2.) One can always be deployed without the other.

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• Spring Security - is Role and ACL security overkill?

  - by HDave

  I have a 3 tier application that requires security authorizations be placed on various domain objects. Whether I use Spring's ACL implementation or roll my own, it seems to me that ACL based security can only be used to authorize (service) methods and cannot be used to authorize URL or web service invocations. I think this because how could a web service call check the ACL before it has hydrated the XML payload? Also, all the examples for web access security in the Spring documentation are securing URL's based on Role. Is it typical to use Spring's roles to secure web presentation and web service calls, while at the same time using ACL's to secure the business methods? Is this overkill?

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• Help with InvalidCastException

  - by Robert

  I have a gridview and, when a record is double-clicked, I want it to open up a new detail-view form for that particular record. As an example, I have created a Customer class: using System; using System.Data; using System.Configuration; using System.Collections.Generic; using System.ComponentModel; using System.Data.SqlClient; using System.Collections; namespace SyncTest { #region Customer Collection public class CustomerCollection : BindingListView<Customer> { public CustomerCollection() : base() { } public CustomerCollection(List<Customer> customers) : base(customers) { } public CustomerCollection(DataTable dt) { foreach (DataRow oRow in dt.Rows) { Customer c = new Customer(oRow); this.Add(c); } } } #endregion public class Customer : INotifyPropertyChanged, IEditableObject, IDataErrorInfo { private string _CustomerID; private string _CompanyName; private string _ContactName; private string _ContactTitle; private string _OldCustomerID; private string _OldCompanyName; private string _OldContactName; private string _OldContactTitle; private bool _Editing; private string _Error = string.Empty; private EntityStateEnum _EntityState; private Hashtable _PropErrors = new Hashtable(); public event PropertyChangedEventHandler PropertyChanged; private void FirePropertyChangeNotification(string propName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propName)); } } public Customer() { this.EntityState = EntityStateEnum.Unchanged; } public Customer(DataRow dr) { //Populates the business object item from a data row this.CustomerID = dr["CustomerID"].ToString(); this.CompanyName = dr["CompanyName"].ToString(); this.ContactName = dr["ContactName"].ToString(); this.ContactTitle = dr["ContactTitle"].ToString(); this.EntityState = EntityStateEnum.Unchanged; } public string CustomerID { get { return _CustomerID; } set { _CustomerID = value; FirePropertyChangeNotification("CustomerID"); } } public string CompanyName { get { return _CompanyName; } set { _CompanyName = value; FirePropertyChangeNotification("CompanyName"); } } public string ContactName { get { return _ContactName; } set { _ContactName = value; FirePropertyChangeNotification("ContactName"); } } public string ContactTitle { get { return _ContactTitle; } set { _ContactTitle = value; FirePropertyChangeNotification("ContactTitle"); } } public Boolean IsDirty { get { return ((this.EntityState != EntityStateEnum.Unchanged) || (this.EntityState != EntityStateEnum.Deleted)); } } public enum EntityStateEnum { Unchanged, Added, Deleted, Modified } void IEditableObject.BeginEdit() { if (!_Editing) { _OldCustomerID = _CustomerID; _OldCompanyName = _CompanyName; _OldContactName = _ContactName; _OldContactTitle = _ContactTitle; } this.EntityState = EntityStateEnum.Modified; _Editing = true; } void IEditableObject.CancelEdit() { if (_Editing) { _CustomerID = _OldCustomerID; _CompanyName = _OldCompanyName; _ContactName = _OldContactName; _ContactTitle = _OldContactTitle; } this.EntityState = EntityStateEnum.Unchanged; _Editing = false; } void IEditableObject.EndEdit() { _Editing = false; } public EntityStateEnum EntityState { get { return _EntityState; } set { _EntityState = value; } } string IDataErrorInfo.Error { get { return _Error; } } string IDataErrorInfo.this[string columnName] { get { return (string)_PropErrors[columnName]; } } private void DataStateChanged(EntityStateEnum dataState, string propertyName) { //Raise the event if (PropertyChanged != null && propertyName != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } //If the state is deleted, mark it as deleted if (dataState == EntityStateEnum.Deleted) { this.EntityState = dataState; } if (this.EntityState == EntityStateEnum.Unchanged) { this.EntityState = dataState; } } } } Here is my the code for the double-click event: private void customersDataGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e) { Customer oCustomer = (Customer)customersBindingSource.CurrencyManager.List[customersBindingSource.CurrencyManager.Position]; CustomerForm oForm = new CustomerForm(); oForm.NewCustomer = oCustomer; oForm.ShowDialog(this); oForm.Dispose(); oForm = null; } Unfortunately, when this code runs, I receive an InvalidCastException error stating "Unable to cast object to type 'System.Data.DataRowView' to type 'SyncTest.Customer'". This error occurs on the very first line of that event: Customer oCustomer = (Customer)customersBindingSource.CurrencyManager.List[customersBindingSource.CurrencyManager.Position]; What am I doing wrong?... and what can I do to fix this? Any help is greatly appreciated. Thanks!

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• SQL Anywhere 11, JZ0C0: Connection is already closed

  - by Alex

  SLOVED see commend I develop am webservice based on apache tomcat 6.0.26, apache cxf 2.2.7, spring 3.0, hibernate 3.3 and sybase sqlanywhere 11. im using the latest JDBC Driver from SYBASE jconn.jar Version 6. The persistence layer is based on spring + hibernate dao, the connection is configured via a JNDI datasoure (META-INF directory). It seems that, during longer times of inactivity, the connection from the webservice to the database is closed. Exception: java.sql.SQLException: JZ0C0: Connection is already closed. Best regards, Alex

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• Binding elements when modal window loads from AJAX (jQuery)

  - by thinkswan

  I'd like to set up a drag'n'drop list inside a modal window. The window's content is loaded via an AJAX call, so I believe I need to use jQuery's .live() method. Here is my current code: $('#cboxLoadedContent').live('load', function() { // Event for sortable page lists $('ul#pageList').sortable(); }); How can I set up bindings when the modal window loads? The modal window comes from the colorbox plugin. Note: I'm guessing that 'load' is not the right event to use, because if I throw a simple alert() in there, it doesn't even show up when the window loads.

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• C# GridView dynamically built columns with textboxes ontextchanged

  - by tnriverfish

  My page is a bulk order form that has many products and various size options. I've got a gridview that has a 3 static columns with labels. There are then some dynamically built columns. Each of the dynamically built columns have a textbox in them. The textbox is for quantity. Trying to either update the server with the quantity entered each time a textbox is changed (possibly ontextchanged event) or loop though each of the rows column by column and gather all the items that have a quantity and process those items and their quantities all at once (via button onclick). If I put the process that builds the GridView behind a if(!Page.IsPostBack) then the when a textchanged event fires the gridview only gets the static fields and the dynamic ones are gone. If I remove the if(!Page.IsPostBack) the process to gather and build the page is too heavy on processing and takes too long to render the page again. Some advice would be appreciated. Thanks

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• Best Fit Scheduling Algorithm

  - by Teegijee

  I'm writing a scheduling program with a difficult programming problem. There are several events, each with multiple meeting times. I need to find an arrangement of meeting times such that each schedule contains any given event exactly once, using one of each event's multiple meeting times. Obviously I could use brute force, but that's rarely the best solution. I'm guessing this is a relatively basic computer science problem, which I'll learn about once I am able to start taking computer science classes. In the meantime, I'd prefer any links where I could read up on this, or even just a name I could Google.

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• why licenced code is packed and then is reviewable using Disassembler at the same time ?

  - by Asad Butt

  Is it legal / ethical to copy code for any reason, or utilize it (like code review) from the .Net framework or any other .Net based API using Reflector or similar tools ? If it is, what advantages do Microsoft and other licence based softwares have for packing there code ? If it is not, Why can we use ILDasm and Reflector ? Another way of saying this is Why to pack it up if it is fine to review it ? probably I am missing some bits in the question, any one who feels, could ask this question in a better way, is most welcome to edit. Thanks

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• C# Grid Cell Formating

  - by Mitesh

  IS There Any Event In C# Winform For Formating The Last Cell Or Last Row After Complete DataBinding.

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• XML to be validated against multiple xsd schemas

  - by Michael Rusch

  I'm writing the xsd and the code to validate, so I have great control here. I would like to have an upload facility that adds stuff to my application based on an xml file. One part of the xml file should be validated against different schemas based on one of the values in the other part of it. Here's an example to illustrate: <foo> <name>Harold</name> <bar>Alpha</bar> <baz>Mercury</baz> <!-- ... more general info that applies to all foos ... --> <bar-config> <!-- the content here is specific to the bar named "Alpha" --> </bar-config> <baz-config> <!-- the content here is specific to the baz named "Mercury" --> </baz> </foo> In this case, there is some controlled vocabulary for the content of <bar>, and I can handle that part just fine. Then, based on the bar value, the appropriate xml schema should be used to validate the content of bar-config. Similarly for baz and baz-config. The code doing the parsing/validation is written in Java. Not sure how language-dependent the solution will be. Ideally, the solution would permit the xml author to declare the appropriate schema locations and what-not so that s/he could get the xml validated on the fly in a sufficiently smart editor. Also, the possible values for <bar> and <baz> are orthogonal, so I don't want to do this by extension for every possible bar/baz combo. What I mean is, if there are 24 possible bar values/schemas and 8 possible baz values/schemas, I want to be able to write 1 + 24 + 8 = 33 total schemas, instead of 1 * 24 * 8 = 192 total schemas. Also, I'd prefer to NOT break out the bar-config and baz-config into separate xml files if possible. I realize that might make all the problems much easier, as each xml file would have a single schema, but I'm trying to see if there is a good single-xml-file solution.

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• PHP: Can pcntl_alarm() and socket_select() peacefully exist in the same thread?

  - by DWilliams

  I have a PHP CLI script mostly written that functions as a chat server for chat clients to connect to (don't ask me why I'm doing it in PHP, thats another story haha). My script utilizes the socket_select() function to hang execution until something happens on a socket, at which point it wakes up, processes the event, and waits until the next event. Now, there are some routine tasks that I need performed every 30 seconds or so (check of tempbanned users should be unbanned, save user databases, other assorted things). From what I can tell, PHP doesn't have very great multi-threading support at all. My first thought was to compare a timestamp every time the socket generates an event and gets the program flowing again, but this is very inconsistent since the server could very well sit idle for hours and not have any of my cleanup routines executed. I came across the PHP pcntl extensions, and it lets me use assign a time interval for SIGALRM to get sent and a function get executed every time it's sent. This seems like the ideal solution to my problem, however pcntl_alarm() and socket_select() clash with each other pretty bad. Every time SIGALRM is triggered, all sorts of crazy things happen to my socket control code. My program is fairly lengthy so I can't post it all here, but it shouldn't matter since I don't believe I'm doing anything wrong code-wise. My question is: Is there any way for a SIGALRM to be handled in the same thread as a waiting socket_select()? If so, how? If not, what are my alternatives here? Here's some output from my program. My alarm function simply outputs "Tick!" whenever it's called to make it easy to tell when stuff is happening. This is the output (including errors) after allowing it to tick 4 times (there were no actual attempts at connecting to the server despite what it says): [05-28-10 @ 20:01:05] Chat server started on 192.168.1.28 port 4050 [05-28-10 @ 20:01:05] Loaded 2 users from file PHP Notice: Undefined offset: 0 in /home/danny/projects/PHPChatServ/ChatServ.php on line 112 PHP Warning: socket_select(): unable to select [4]: Interrupted system call in /home/danny/projects/PHPChatServ/ChatServ.php on line 116 [05-28-10 @ 20:01:15] Tick! PHP Warning: socket_accept(): unable to accept incoming connection [4]: Interrupted system call in /home/danny/projects/PHPChatServ/ChatServ.php on line 126 [05-28-10 @ 20:01:25] Tick! PHP Warning: socket_getpeername() expects parameter 1 to be resource, boolean given in /home/danny/projects/PHPChatServ/ChatServ.php on line 129 [05-28-10 @ 20:01:25] Accepting socket connection from PHP Notice: Undefined offset: 1 in /home/danny/projects/PHPChatServ/ChatServ.php on line 112 PHP Warning: socket_select(): unable to select [4]: Interrupted system call in /home/danny/projects/PHPChatServ/ChatServ.php on line 116 [05-28-10 @ 20:01:35] Tick! PHP Warning: socket_accept(): unable to accept incoming connection [4]: Interrupted system call in /home/danny/projects/PHPChatServ/ChatServ.php on line 126 [05-28-10 @ 20:01:45] Tick! PHP Warning: socket_getpeername() expects parameter 1 to be resource, boolean given in /home/danny/projects/PHPChatServ/ChatServ.php on line 129 [05-28-10 @ 20:01:45] Accepting socket connection from PHP Notice: Undefined offset: 2 in /home/danny/projects/PHPChatServ/ChatServ.php on line 112

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• MkMapView setRegion animation prevents touch events on Annotation Views

  - by Vlad Gurovich

  Hi there! We have a MKmapView with a bunch of Image Annotation where each Image annotation responds to touch by overriding these methods of AnnotationView subclass: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event Our map region is updated using [MkMapView setRegion:animated:] whenever the new location is received and is far enough from the old location to make a difference. What I noticed is that if we set animated flag to YES the touches on our annotation are rarely detected(probably due to the fact that main thread is busy animating between two map regions. When we set animated flag to NO, everything is fine, but map transition may(or may not) become jerky. The question I have is whether this is an expected behavior of animated flag of [MkMapView setRegion:animated] function or whether there is a workaround for this issue. Thanks in advance

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• WCF: How to detect new connections to WCF PerSession services ?

  - by Christian Toma

  I have a self-hosted WCF service with the InstanceContextMode set to PerSession. How can I detect new client connections (sessions) to my service from the host application and use that new session context to observe my service trough its events? Something like: [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class MyService : IMyService { public event EventHandler ClientRegistered; public event EventHandler FileUploaded; } and from my host application to be able to do: ServiceHost svc = new ServiceHost(typeof(MyService)); svc.Open(); // something like: svc.NewSession += new EventHandler(...) //... public void SessionHandler(InstanceContext SessionContext) { MySessionHandler NewSessionHandler = new MySessionHandler(SessionContext); // From MySessionHandler I handle the service's events (FileUploaded, ClientRegistered) // for this session and notify the UI of any changes. NewSessionHandler.Handle(); }

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• How to get access to a window that is loaded into a panel

  - by Sandor Drieënhuizen

  I'm loading an external script (that creates a new window component) into a panel, which works fine. Now, I want to access the created window from a callback function to register a closed event handler. I've tried the following: panel.load({ scripts: true, url: '/createWindow', callback: function(el, success, response, options) { panel.findByType("window")[0].on("close", function { alert("Closed"); }); } }); However, the panel seems to be empty all the time, the findByType method keeps returning an empty collection. I've tried adding events handlers for events like added to the panel but none of them got fired. So the question is: how do I access the window in the panel to register my close event handler on it?

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• jQuery Filtering Gridview Columns

  - by RSchmitt

  I'm looking to have a click event for all columns but the last column of a GridView and then have a separate click event for the last column of the gridview (a DropDownList). I have the following right now but just can't seem to get it to exclude the last column: var _activeRow; $('.gridview-jquerify tr').filter(function() { return $('td', this).length && !$('table', this).length }) .bind('click', function(e) { if (_activeRow) _activeRow.removeClass('gridviewrow-highlighted'); _activeRow = $(this).addClass('gridviewrow-highlighted'); $(this).each(function() { var myID = $(this).find('.gridview-cell-hide').html(); __doPostBack('MyUpdatePanel', myID); }); }); Then I can't seem to get a variation of the above to work for the last column by doing a filter using :last in the selector such as: $('.gridview-jquerify tr >td:last').filter(function() { return $('td)', this).length && !$('table', this).length })

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• codingBat last2 using regex

  - by polygenelubricants

  Okay guys, this is similar to my repeatEnd and wordEnds efforts; I want to solve this codingBat Warmup-2 question using only regex-based techniques as a "brain gymnastics" exercise. This solution works for codingBat tests: public int last2(String str) { return str.isEmpty() ? 0 : str.split( str.replaceAll( ".*(.)(.)", "$1(?=$2)" //.replaceAll("(\\$.)", "\\\\\\\\Q$1\\\\\\\\E") ), -1 ).length - 1 - 1; } The monstrous octo-slashes aren't needed to pass codingBat, but is needed for a proper regex-based solution. That is, if I want this (and I do!): assert last2("..+++...++") == 2; I'd have to uncomment the second .replaceAll. I'm just wondering if others can come up with a simpler, more elegant regex solution for this problem. Preferably one that doesn't contain octo-slashes.

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• Handling Hide/Show dock icon menu in AIR on OS X

  - by Alan

  I'm trying to figure out how to access the Show/Hide option that OS X automatically adds to the dock icon menu. The problem is that no matter what I do to hide my app, the dock icon menu will always show Hide and only if I click that option does it switch to Show. I want to have my app toggle visibility using the Invoke event but if a user hides the app that way and then right clicks the dock icon, they won't see Show, just Hide. Is there an event I can monitor for it? Or that I can trigger? I just want to have that menu option status be synced to whatever visibility status I set programatically. This has been driving me nuts!

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• Override default behavior of SPACE key in .net WinForms ListView

  - by Axarydax

  Hello, I'd like to implement some custom behavior of Space key in a ListView. Basically I'd like to toggle selected status of the item under cursor - that should be fairly simple this.FocusedItem.Selected = !this.FocusedItem.Selected; but alas, it also does the default action, which is to select the focused item. This way I am unable to 'unselect' the focused item. I've looked for similar problems and they suggest using PreviewKeyDown event, in which I would process the key and disallow the ListView to do its default action. But the PreviewKeyDown event argument has no "handled" property, so I cannot 'eat' this key.

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• how to localize a table with multiple text entries?

  - by rap-uvic

  Hello, I'm writing a web app which will allow creation of events. An event can have a title as well as a description amongst other things. The app needs to be multilingual. So I have 4 tables for localization: ResourceTypes, ResourceKeys, Resources, and Locales. A resource key can have multiple values in Resources table for different locales. So Resources is a many to many table between ResourceKeys and Locales. So in the event table I want to have a resourceKey for its title as well as a resourceKey for its description. So my question is, is it OK from database-design perspective to have two foreign keys from a table into another table? Has anybody used a better approach in such a scenario?

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• Can NSDictionary be used with TableView on iPhone?

  - by bobo

  In a UITableViewController subclass, there are some methods that need to be implemented in order to load the data and handle the row selection event: - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; //there is only one section needed for my table view } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [myList count]; //myList is a NSDictionary already populated in viewDidLoad method } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease ]; } // indexPath.row returns an integer index, // but myList uses keys that are not integer, // I don't know how I can retrieve the value and assign it to the cell.textLabel.text return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Handle row on select event, // but indexPath.row only returns the index, // not a key of the myList NSDictionary, // this prevents me from knowing which row is selected } How is NSDictionary supposed to work with TableView? What is the simplest way to get this done?

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• How to disable Events for a while in Javascript or jQuery

  - by Tarik

  Hello, I am wondering if you guys know different approach to disable an event for a while. Let me elaborate this more : Lets say I have a div or button which has a subscriber to its onclick event. To prevent the double click when the the methods are doing some ajax things, these are the some of the ways we can do : Disable the button till the method finishes its job Unbind till the methods finishes its job and then bind it again. Use some kind of flagging system like boolean so it will prevent method from working more than once. So is there any other ways, maybe some javascript tricks or jQuery tricks which is more efficient and better practice. Thanks in advance.

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• touchesEnded not being called??? or randomly being called

  - by Rob

  If I lift my finger up off the first touch, then it will recognize the next touch just fine. It's only when I hold my first touch down continuously and then try and touch a different area with a different finger at the same time. It will then incorrectly register that second touch as being from the first touch again. Update It has something to do with touchesEnded not being called until the very LAST touch has ended (it doesn't care if you already had 5 other touches end before you finally let go of the last one... it calls them all to end once the very last touch ends) - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch* touch = [touches anyObject]; NSString* filename = [listOfStuff objectAtIndex:[touch view].tag]; // do something with the filename now } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { ITouch* touch = [touches anyObject]; NSString* buttonPressed = [listOfStuff objectAtIndex:[touch view].tag]; // do something with this info now }

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