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• Can you tune C runtime heap segment reservation size on XP?

  - by Jason

  When the VC6 C runtime on XP can't serve an allocation request within an existing heap segment, it reserves a new segment. The size of these new segments increase by factors of 2 (until there are not large enough free areas to do that, at which point it falls down to smaller segments.) In any case, is there any way to control this behavior on XP with the VC6 runtime? For example, doubling up to a point, but capping at 64MB segments. If there is no way on XP but there is on 7, that would be good to know too. Or if there is no way on VC6 but there is on VC8 or up would be interesting.

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• Session Management in Axis1.2

  - by venkat

  Hi, In our application we are using Axis1.2. Our service has one instance variable profileDataManager which is responsible to return set of profiles. The application has pagination to display only 25 profiles at a time. My requirement is the profileDataManager should be instantiated only once for respective client. On subsequent calls, it should use the existing object. For this i need the one service object should be created for user session.If a client sends another request, the service object created in previous call should be returned. On client side i am using Flex. In CXF webserice, my requirement is fulfilled with an annotation '@HttpSessionScope'. Is there away that i can get the abovementioned behavior in Axis? I have given the following trials. but no success added and modified the java client stub.setMaintainSession(true); The above didn't work for me.

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• Load HTML frames in a specific order without back button problems?

  - by Joergen Bech

  I have a web page that uses a frameset. Due to scripting and object dependencies, I need to load the frames in a specific order. I have used this example as a template: The JavaScript Source: Navigation: Frames Load Order This loads an empty page in place of the page I need to load last, then replaces it with the correct page after the first page has loaded. However: I also need to use the browser Back button. If you run the sample at the above link, let both frames load, then click the Back button, the top frame reverts to the temporary blank page. It is then necessary to click the Back button again to navigate to the page before the frameset. Is there a way to force frames to load in a specific order without this Back button behavior - or a way to force the Back button to skip the empty page? This needs to work with Internet Explorer 6 and 7 and preferably with Firefox 3 as well.

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• CommandManager Executed Events don't fire for custom ICommands

  - by Andre Luus

  The WPF CommandManager allows you to do the following (pseudo-ish-code): <Button Name="SomeButton" Command="{Binding Path=ViewModelCommand}"/> And in the code-behind: private void InitCommandEvents() { CommandManager.AddExecutedEventHandler(this.SomeButton, SomeEventHandler); } The SomeEventHandler never gets called. To me this didn't seem like something very wrong to try and do, but if you consider what happens inside CommandManager.AddExecutedEventHandler, it makes sense why it doesn't. Add to that the fact that the documentation clearly states that the CommandManager only works with RoutedCommands. Nonetheless, this had me very frustrated for a while and led me to this question: What would you suggest is the best workaround for the fact that the CommandManager does not support custom ICommands? Especially if you want to add behavior around the execution of a command? For now, I fire the command manually in code behind from the button click event.

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• strange messages in log file @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^....

  - by celalo

  Hello, I have a application server for network operations written with JAVA based on Apache Mina. Recently I encounter a strange behavior in my log files. I noticed that the log file is full of @^@^@^@^@^@^@^@^@^@^@^@^.... characters. I mean those unexpected characters are vast amount of as such the log file gets hundreds of GB in a couple of hours! I have no clue about this problem and it is almost impossible to google it. What could be the reason? Are those set of characters any familiar to anybody? I can give more details about the application if needed. Thanks in advance.

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• Assistance using respond_to to find the right actions to render PDF in ruby on rails

  - by Angela

  Hi, I am trying out Prince with the Princely plugin, which is supposed to format templates that have the .pdf into a PDF generator. Here is my controller: class TodoController < ApplicationController def show_date @date = Date.today @campaigns = Campaign.all @contacts = Contact.all @contacts.each do |contact| end respond_to do |format| format.html format.pdf do render :pdf => "filename", :stylesheets => ["application", "prince"], :layout => "pdf" end end end end I changed the routes.db to include the following: map.connect ':controller/:action.:format' map.todo "todo/today", :controller => "todo", :action => "show_date" My expected behavior is when I enter todo/today.pdf, it tries to execute show_date, but renders according to the princely plugin. Right now, it says cannot find action. What do I need to do to fix this?

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• shell script fun! performing action on each subdirectory from a given path

  - by pocketfullofcheese

  I am writing a shell script (which I suck at) and I need some help. Its a script that is moving things from git to CVS (not important). The thing is, i a file path: controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php and I need to be able to do: cvs add controllers; cvs add controllers/listbuilder; cvs add controllers/listbuilder/setup; cvs add controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php Can someone help me out? The best I've come up with so far is to recursively add ALL files in my working tree, but that seems overly inefficient.

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• Combining prefixes in SSE

  - by Nathan Fellman

  In SSE the prefixes 066h (operand size override) 0F2H (REPNE) and 0F3h (REPE) are part of the opcode. In non-SSE 066h switches between 32-bit (or 64-bit) and 16-bit operation. 0F2h and 0F3h are used for string operations. They can be combined so that 066h and 0F2h (or 0F3h) can be used in the same instruction, because this is meaningful. What is the behavior in an SSE instruction? For instance, we have (ignoring mod/rm for now): 0f 58 -- addps 66 0f 58 -- addpd f2 0f 58 -- addsd f3 0f 58 -- addss But what is this? 66 f2 0f 58 And how about? f2 66 0f 58 Not to mention the following which has two conflicting REP prefixes: f2 f3 0f 58 What is the spec for thse?

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• REDUX: How to overcome an incompatibility between the ksh on Linux vs. that installed on AIX/Solaris

  - by Andrew Stein

  I have uncovered another problem in the effort that we are making to port several hundreds of ksh scripts from AIX, Solaris and HPUX to Linux. See here for the previous problem. This code: #!/bin/ksh if [ -a k* ]; then echo "Oh yeah!" else echo "No way!" fi exit 0 (when run in a directory with several files whose name starts with k) produces "Oh yeah!" when called with the AT&T ksh variants (ksh88 and ksh93). On the other hand it produces and error message followed by "No way!" on the other ksh variants (pdksh, MKS ksh and bash). Again, my question are: Is there an environment variable that will cause pdksh to behave like ksh93? Failing that: Is there an option on pdksh to get the required behavior?

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• Drupal Customizing User Registration Form

  - by Asif Mulla

  Hi All, I am newbie in Drupal 6. I am looking for customizing User registration form. Apparently found that while adding user using Admin login allows registration form to have fields like email address, username, password,confirm password, etc with validations. But when anonymous use wants to register, then only fields like email address and username are displayed. I tried with Profile module available. But now how could I add some fields (password, confirm password, terms & condition check and receive news letter check box)and behavior (password, confirm password validation etc.)? If I am adding such fields they are also get visible in AdminAdd user form resulting duplicate fields like Password,Confirm password. Could you please suggest me how can I do this? I tried googling but confused me a lot as I am beginner to Drupal.

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• how to word wrap a QTreeWidgetItem

  - by japs

  hello all, i have to populate a QTreeWidget with items (or children of items) that may happen to be too long to fit in a single line, so i'm looking for a way to word wrap them. i thought myQTreeWidget.setWordWrap(True) (done via QtDesigner4) would have done the job, but that doesn't seem to be the case. i don't konw if it is relevant, but the tree is enveloped in a splitter frame, so the wrapping should be somehow dynamic to allow resizing of the splitter. Any ideas? I use PyQt4, but hints in any language/binding would be much appreciated. have a good day all.

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• SICP making change

  - by RyanD

  So; I'm a hobbiest who's trying to work through SICP (it's free!) and there is an example procedure in the first chapter that is meant to count the possible ways to make change with american coins; (change-maker 100) = 292. It's implemented something like: (define (change-maker amount) (define (coin-value n) (cond ((= n 1) 1) ((= n 2) 5) ((= n 3) 10) ((= n 4) 25) ((= n 5) 50))) (define (iter amount coin-type) (cond ((= amount 0) 1) ((or (= coin-type 0) (< amount 0)) 0) (else (+ (iter amount (- coin-type 1)) (iter (- amount (coin-value coin-type)) coin-type))))) (iter amount 5)) Anyway; this is a tree-recursive procedure, and the author "leaves as a challenge" finding an iterative procedure to solve the same problem (ie fixed space). I have not had luck figuring this out or finding an answer after getting frustrated. I'm wondering if it's a brain fart on my part, or if the author's screwing with me.

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• jQuery - Trigger click event on links with spacebar?

  - by Herb Caudill

  It looks like in most browsers, an <input type="submit"> treats both [spacebar] and [enter] as a click, but an <a> link only treats [enter] as a click. My app uses a number of links formatted to simulate buttons, so a user that is accustomed to tabbing to a button and pressing [spacebar] will be frustrated. This bit of jQuery solves the problem: $("a.Button").die("keypress").live("keypress", function(e) { if (e.which == 32) { $(this).trigger("click"); e.preventDefault(); } }); My question: Is this a reason not to do this? I'm a little reluctant to override the browser's default behavior on something as basic as this, but since I'm already abusing the link tag to make it look like a button, at least this way I'm not violating the user's expectations any further.

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• TreeView nodes always have .Checked=true on postback even when not checked in UI

  - by GISmatters

  I have a treeview in my .aspx: <asp:TreeView ID="tvDocCatAndType" runat="server" /> Not much else going on in the page -- two <asp:LinkButtons> and one <asp:Label>; the page is a child of a master page, so these controls are within a <asp:Content> control. I populate the treeview in code -- just 3 node levels, including the root node. All nodes have checkboxes, and I initialize all node.Checked to true. I have some Javascript to do the usual check/uncheck up and down the tree as parent and child node checkboxes are toggled. No matter how many checkboxes I clear in the UI, on postback every single node has node.Checked = true regardless of the state of the checkbox in the UI. This is not the first time I've used a treeview, but I've never had this problem before. I created this page by light adaptation of an earlier project that works fine. Thanks in advance for any helpful comments or questions, Chris

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• Multiple complete HTTP requests stuck in TCP CLOSE_WAIT state

  - by Sean Owen

  I have a Java and Tomcat-based server application which initiates many outbound HTTP requests to other web sites. We use Jakarta's HTTP Core/Client libraries, very latest versions. The server locks up at some point since all its worker threads are stuck trying to close completed HTTP connections. Using 'lsof' reveals a bunch of sockets stuck in TCP CLOSE_WAIT state. This doesn't happen for all, or even most connections. In fact, I saw it before and resolved it by making sure to set the Connection: Close response header. So that makes me think it may be bad behavior of remote servers. It may have come up again since I moved the app to a totally new service provider -- different OS, network situation. But, I am still at a loss as to what I could do, if anything, to work around this. Some poking around on the internet didn't turn up anything I'm not already doing. Just thought I'd ask if anyone has seen and solved this?

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• What could make GetCursorPos return incorrect coordinates of {0,0} ?

  - by Dave Moore

  We are seeing bad behavior in an application when it runs on Server 2008 (not R2). This is a WinForms application, and Control.MousePosition is returning {0,0} no matter where the mouse is on the screen... Control.MousePosition just makes a P/Invoke call to Win32 api GetCursorPos(). There is a control in our library that calls SetWindowsHookEx to hook WH_CALLWNDPROCRET for our entire process. I'm suspicious of this code, but tracing statements show that we're getting in + out of that hook cleanly. What else should I be looking for? Thanks, Dave

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• How can I edit a css rule in jQuery?

  - by chacham15

  The purpose is that rows are dynamically added to a table and it is not as nice (and slower) to apply the rule manually later. The specific example is that I am creating a tree table to represent a folder directory. Each folder is a div. In each div, there is a ul with an li for each columns' information. These li have a class name equivalent to the column name. This provides column width. I want to make the columns resizable however. I could do $('.className').css('width', newWidth) but then this wont apply to newly inserted items. Therefore, I want to modify the css rule. How do I do this?

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• Non-interactive command-line FTP client alternative to weex

  - by Halfgaar

  Hi, I'm looking for a good non-interactive, command line FTP client to be run from a Rakefile. Like Weex, but better. Weex has different problems (for me): It stores its config file in my home dir. I want the FTP config to be part of my project and weex doesn't have a --config-file option or something. The behavior of ignoring files seems to be completely buggy. It doesn't remove files which it should, it doesn't let me specify relative paths, even though I do it according to the man page's instructions, etc. I've been struggling with it for an hour now and it is just completely inexplicable. I tried running rsync over FTPFS/FUSE, but that is dead slow because FTP doesn't store mtimes, which makes rsync diff every file. Plus, there are some refresh problems and other bugs that cause access failure (http://bugs.gentoo.org/208168). I'm stuck with FTP, unfortunately. Any help is appreciated.

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• Can I develop for .NET Framework 4 in Visual Studio 2008?

  - by Zack Peterson

  My ASP.NET application runs in IIS on my web server and uses Microsoft .NET Framework 4 Beta 2. (Its Application Pool is set to .NET Framework version .NET Framework v4.0.21006.) It gives this new error: A potentially dangerous Request.Form value was detected from the client... This is due to a breaking change in .NET 4. To revert to the behavior of the ASP.NET 2.0 request validation feature, I added the following setting in the Web.config file: <httpRuntime requestValidationMode="2.0" /> Now Visual Studio 2008 throws a compile-time error: The 'requestValidationMode' attribute is not declared. And I can no longer debug on my development machine using the ASP.NET Development Server that comes with Visual Studio. I need Visual Studio and its ASP.NET Development Server to recognize the new .NET Framework 4 requestValidationMode attribute. How can I debug my application in .NET 4? Must I switch from Visual Studio 2008 to Visual Studio 2010 Beta 2?

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• How can I store data in a table as a trie? (SQL Server)

  - by Matt

  Hi, To make things easier, the table contains all the words in the English dictionary. What I would like to do is be able to store the data as a trie. This way I can traverse the different branches of the trie and return the most relevant result. First, how do I store the data in the table as a trie? Second, how do I traverse the tree? If it helps at all, the suggestion in this previous question is where this question was sparked from. Please make sure it's SQL we're talking about. I understood the Mike Dunlavey's C implementation because of pointers but can't see how this part (The trie itself) works in SQL. Thanks, Matt

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• Simulate the user clicking on a link

  - by timkl

  I want a link to be clicked when a key is pressed, I cooked up this jQuery: $('form#form1').bind("keypress", function(e){ if(e.keycode == 13 || e.keyChar == 13 || e.which == 13){ $('.LoginBoxButton a').click(); } }); It doesn't work, and I've read the following explaining why: It's important to remember that click() will not trigger the default behavior on a link, even if nothing else is preventing it. So you can't use click() by itself to simulate the user clicking on a link and being taken to another url. But how DO you simulate the user clicking on a link and being taken to another url?

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• A tool to find and fix incomplete source code documentation

  - by Pekka

  I have several finished, older PHP projects with a lot of includes that I would like to document in javadoc/phpDocumentor style. While working through each file manually and being forced to do a code review alongside the documenting would be the best thing, I am, simply out of time constraints, interested in tools to help me automate the task as much as possible. The tool I am thinking about would ideally have the following features: Parse a PHP project tree and tell me where there are undocumented files, classes, and functions/methods (i.e. elements missing the appropriate docblock comment) Provide a method to half-way easily add the missing docblocks by creating the empty structures and, ideally, opening the file in an editor (internal or external I don't care) so I can put in the description. Optional: Automatic recognition of parameter types, return values and such. But that's not really required. The language in question is PHP, though I could imagine that a C/Java tool might be able to handle PHP files after some tweaking. Thanks for your great input!

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• Binding Linq To Entities query results to a datagridview

  - by Nickson

  I just started playing with Linq to entities in a windows forms application and am not understanding one behavior that looks so simple though. If i type code below, i get ReadOnly records in my dataGridView Dim x = From n in Table1 _ Select n.FirstName, n.LastName, N.Department DataGridView1.DataSource = x But if i type the following code, i get editable rows in my dataGridView Dim x = From n in Table1 _ Select n DataGridView1.DataSource = x So, basically if i specify the column names to select and databind to my DataGridView1, the rows are readonly but if i do not specify the column names and databind to the DataGridView, the rows are editable and i don't understand why.

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• Select only items in a specific DIV using HtmlAgilityPack

  - by Adam Haile

  I'm trying to use the HtmlAgilityPack to pull all of the links from a page that are contained within a div declared as <div class='content'> However, when I use the code below I simply get ALL links on the entire page. This doesn't really make sense to me since I am calling SelectNodes from the sub-node I selected earlier (which when viewed in the debugger only shows the HTML from that specific div). So, it's like it's going back to the very root node every time I call SelectNodes. The code I use is below: HtmlWeb hw = new HtmlWeb(); HtmlDocument doc = hw.Load(@"http://example.com"); HtmlNode node = doc.DocumentNode.SelectSingleNode("//div[@class='content']"); foreach(HtmlNode link in node.SelectNodes("//a[@href]")) { Console.WriteLine(link.Value); } Is this the expected behavior? And if so, how do I get it to do what I'm expecting?

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• Displaying UserControls based on the type a TreeView selection is bound to

  - by Ray Wenderlich

  I am making an app in WPF in a style similar to Windows Explorer, with a TreeView on the left and a pane on the right. I want the contents of the right pane to change depending on the type of the selected element in the TreeView. For example, say the top level in the Tree View contains objects of class "A", and if you expand the "A" object you'll see a list of "B" objects as children of the "A" object. If the "A" object is selected, I want the right pane to show a user control for "A", and if "B" is selected I want the right pane to show a user control for "B". I've currently got this working by: setting up the TreeView with one HierarchialDataTemplate per type adding all the UserControls to the right pane, but collapsed implementing SelectedItemChanged on the TreeView, and setting the appropriate usercontrol to visible and the others to collapsed. However, I'm sure there's a better/more elegant way to switch out the views based on the type the selection is bound to, perhaps by making more use of data binding... any ideas?

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