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• displaying sql exception in JSF

  - by user234194

  I was wondering how would I be able to show SQL errors generated during update, delete, select * etc in JSF. Any help would be appreciated.

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• C++ method passed by reference memory question

  - by gilbertc

  Assume, void proc(CString& str) { str = "123"; } void runningMethod() { CString str="ABC"; proc(str); } I understand that at the exit of runningMethod str will be deallocated automatically; in this case, how does C++ delete the old data ("ABC")? Thanks, Gil.

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• Smart Cards Development

  - by user292395

  I need a 'java' source code on how to extract a cap file from the computer and divide it into blocks in order to send it using APDUs to the smart card to install or load or delete an application. Thanks in advance.

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• how to Design a vista like button using CSS

  - by GayaMani

  can any one tell me the way to design vista like buttons using CSS for the application in ASP.NET. For the Buttons like Save,delete,Cancel etc

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• Trace Flag 1211 Not Working - SQL Server 2008 R2

  - by psam

  During a SSIS load, when an employee table is getting updated, locking comes into effect. However, have disabled lock escalation on the table using the following statements: ALTER TABLE dbo.Employee SET (LOCK_ESCALATION = DISABLE) DBCC TRACEON (1211,-1) However, the table (object) does get locked and is held for almost an hour. The total no. of updates (insert, update, delete statements) are approx 200,000

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• How do I create an empty Django formset using modelformset_factory?

  - by nbolton

  I'm creating a formset, but it seems to populate it with all of the existing data in the table for that object. I can't figure out how to start with a blank formset; the only way seems to be to delete all of the data from the table, but clearly this isn't an option. I will post code if necessary (but there's lots of it, so knowing what is relevant is tricky).

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• How do large sites accomplish row-level permissions?

  - by JayD3e

  So I am making a small site using cakephp, and my ACL is set up so that every time a piece of content is created, an ACL rule is created to link the owner of the piece of content to the actual content. This allows each owner to edit/delete their own content. This method just seems so inefficient, because there is an equivalent amount of ACL rules as content in the database. I was curious, how do big sites, with millions of pieces of content, solve this problem?

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• DeleteSubKey UnauthorizedAccessException

  - by Adam Haile

  I'm trying to write a quick app to modify some registry keys. When I'm browsing via RegEdit, I can modify and delete the keys with no problems. But when I try to use RegistryKey.DeleteSubKey() it throws an UnauthorizedAccessException Is there anyway to gain the privileges to do this? Also, why would there be a problem if my user account obviously has access to make the changes?

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• Saving program working data

  - by gloris

  When the program runs, the intermediate data must save in the user's computer. Now I use .txt files, encoding with AES. But file/code user can break, delete.... Maybe is better decision?

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• sql data source

  - by George

  I have a table (EmployeeID,EmployeeName,ManagerID) How can I create a sqldatasource to include the ManagerName from the EmployeeName given EmployeeID = ManagerID? In my gridview after dragging a dropdownlist what bindings should I do to display the managerName? Is it possible to use it without writing custom select,insert,delete,update? If not what are the steps I need to do to write the whole thing i.e. custom grid and source? Thank you very much

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• Making Postgres SQL minimal size. How?

  - by voipsecuritydigest.com

  I want to cut Postgres to its minimal size for purpose of including just database function with my application. I'm using Portable Postgres found on internet. Any suggestions what I can delete from Postgres installation which is not needed for normal database use?

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• Can items deleted from "Trash" be recovered?

  - by Miraaj

  Hi all, In mac we have option to delete items securely from trash, while deleting it warns that: once deleted items will not be recovered. I want to know that is there any way by which items deleted "normally, (not securely)" from "Trash" can be recovered? Thanks, Miraaj

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• How can i use appendTo and insertBefore properly

  - by Opoe

  hi all! With the append button i add elements to the same class. I want the append button and delete button beneath the appended elements, but when i use insertBefore, the Toggle function only toggles the buttons visibility. You can check out what i mean here; click add a box and start appending http://www.jsfiddle.net/myd3k/ replace appendTo with inserBefore and toggle the visibility. Thanks in advance

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• Best way to represent a 2-D array in C++ with size determined at run time

  - by Tristan Havelick

  In C++ I'd like to do something like: int n = get_int_from_user(); char* matrix = new char[n][n]; matrix[0][0] = 'c'; //... matrix[n][n] = 'a'; delete [][] matrix; but of course this doesn't work. What is the best way to do something similar? I've seen some solutions to this but they seem pretty messy.

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• [C++] Multiple inheritance from template class

  - by Tom P.

  Hello, I'm having issues with multiple inheritance from different instantiations of the same template class. Specifically, I'm trying to do this: template <class T> class Base { public: Base() : obj(NULL) { } virtual ~Base() { if( obj != NULL ) delete obj; } template <class T> T* createBase() { obj = new T(); return obj; } protected: T* obj; }; class Something { // ... }; class SomethingElse { // ... }; class Derived : public Base<Something>, public Base<SomethingElse> { }; int main() { Derived* d = new Derived(); Something* smth1 = d->createBase<Something>(); SomethingElse* smth2 = d->createBase<SomethingElse>(); delete d; return 0; } When I try to compile the above code, I get the following errors: 1>[...](41) : error C2440: '=' : cannot convert from 'SomethingElse *' to 'Something *' 1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast 1> [...](71) : see reference to function template instantiation 'T *Base<Something>::createBase<SomethingElse>(void)' being compiled 1> with 1> [ 1> T=SomethingElse 1> ] 1>[...](43) : error C2440: 'return' : cannot convert from 'Something *' to 'SomethingElse *' 1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast The issue seems to be ambiguity due to member obj being inherited from both Base< Something and Base< SomethingElse , and I can work around it by disambiguating my calls to createBase: Something* smth1 = d->Base<Something>::createBase<Something>(); SomethingElse* smth2 = d->Base<SomethingElse>::createBase<SomethingElse>(); However, this solution is dreadfully impractical, syntactically speaking, and I'd prefer something more elegant. Moreover, I'm puzzled by the first error message. It seems to imply that there is an instantiation createBase< SomethingElse in Base< Something , but how is that even possible? Any information or advice regarding this issue would be much appreciated.

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• question related to Autorotation

  - by user217572

  hi when i delete the application and then on first page if i rotate from portrait landscape then it rotates but on second time it not why?

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• keep keyboard open when deleting/inserting UITableView's cell (iphone)

  - by Jonathan

  I have a login form using a UITableView. One of the cells has a UISwitch which when on will delete the row above it and when off reinsert it. But the first cell automatically has the keyboard up when the cell is created (basically when the view loads) (by using [cell becomeFirstResponder];) Inserting/deleting any of the cells means that the keyboard animates out and then animates back in. I'd like to remove this so the keyboard stays up while rows are deleted/inserted.

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• How to remove all files ending with ~ made by Emacs

  - by jcmoney

  Whenever I edit files on emacs, it seems a temporary file is created with the same name with ~ appended to it. Does anyone know an quick/easy way to delete all of these files in the working directory?

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• priority Queue destructor

  - by russell

  How do I delete all elements from a priority queue? That means how do I destroy a priority queue? advanced thanks for u answer. Is there any clear- or erase-like method?

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• asp.net gridview editing

  - by George

  I have a gridview (Edit and Delete enabled) that shows a table. A Text Box and A Button. When I type something in the textbox and click the button, the button runs the datasource.filterexpression and filters out the rows. The question whenever I click on the edit button after the filter has been applied The grid auto resets back to the original table? How can I solve this?

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• handling multiple buttons in a form in struts

  - by sarah

  Hi All, I am facing an issue while handling multiple buttons in a form using struts. I have three buttons add,delete and go .I have made forward as hidden and on click of a button i would get the name of the button. The problem is with go button on click of that i want to call a javascript and then call the action and return to the same page .

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• How to manually build mysql cache

  - by hamstar

  I have a table of over 150,000 rows of which most would be updated daily. I have mysql caching turned on so the pages load faster however everytime the database is updated the pages load slow again, which I assume is the cache building itself again. So at the moment I have resorted to doing a wget -m --delete-after http://localhost/ on the server however this takes about 4 hours to complete and moves something like 13 gig. Is there a better way to do this?

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• does it makes sense to do SP for simple queries like select * from users

  - by Omu

  is it going to be faster if instead of doing select * from users where id = 1 or delete from users where id = 1 or select count(*) from users I would create a SP for it ?

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• Attribute to skip over statement in unit test c#

  - by Eli Perpinyal

  I am looking to skip a certain statement in my unit tests eg: if (MessageBox.Show("Are you sure you want to remove " + contact.CompanyName + " from the contacts?", "Confirm Delete", MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.Yes) == MessageBoxResult.Yes) is there an attribute i can place above the statement to avoid the unit test executing it?

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• Generic Open Source REST Client?

  - by Dean J

  I want a simple client that takes a few parameters (Method, URL, Parameters), makes an HTTP request, and shows me the results that were returned. A browser obviously can easily send GET and POST requests, but I have no good ideas on DELETE and UPDATE. Did I miss something in browser 101, or is there a common freeware tool to do this? I've seen other threads that give me Java APIs for a simple client, but that's not what I'm looking for.

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