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• Using thread in aspx-page making a webrequest

  - by Mike Ribeiro

  Hi, I kind of new to the hole threading stuff so bare with me here.. I have a aspx-page that takes some input and makes a reqest: HttpWebRequest request = (HttpWebRequest)WebRequest.Create(string.Format("{0}?{1}", strPostPath, strPostData)); request.Method = "GET"; request.Timeout = 5000; // set 5 sec. timeout request.ProtocolVersion = HttpVersion.Version11; try { HttpWebResponse response = (HttpWebResponse)request.GetResponse(); /do some with response } catch (WebException exce) { //Log some stuff } The thing is that this function is used ALOT. Is there any advantage to make every request in a separate thread and exactly how would that look like? Thx!

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• Exporting data to an accounting system for billing and invoicing - is there any generic standard pra

  - by Ali

  Hi guys, I've built a web application which basically logs work that has been done upon projects plus maintain resources used etc. What I need now is to set it up so that projects can be billed. Billed such that - each task that has been undertaken in a project is regarded as a billable service. Instead of building my own invoicing system and accounts management system I was wondering if there was any standard data format i.e in xml DTD or so to which I could set up the information so it could be imported by a third party accounting system for billing - or if not then what is the best way to accomplish this. I need to integrate invoicing capabilities somehow - better if its third party as I don't wish to have to go through building an entire accounting system.

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• Uploading files to varbinary(max) in SQL Server -- works on one server, not the other

  - by pjabbott

  I have some code that allows users to upload file attachments into a varbinary(max) column in SQL Server from their web browser. It has been working perfectly fine for almost two years, but all of a sudden it stopped working. And it stopped working on only the production database server -- it still works fine on the development server. I can only conclude that the code is fine and there is something up with the instance of SQL Server itself. But I have no idea how to isolate the problem. I insert a record into the ATTACHMENT table, only inserting non-binary data like the title and the content type, and then chunk-upload the uploaded file using the following code: // get the file stream System.IO.Stream fileStream = postedFile.InputStream; // make an upload buffer byte[] fileBuffer; fileBuffer = new byte[1024]; // make an update command SqlCommand fileUpdateCommand = new SqlCommand("update ATTACHMENT set ATTACHMENT_DATA.WRITE(@Data, NULL, NULL) where ATTACHMENT_ID = @ATTACHMENT_ID", sqlConnection, sqlTransaction); fileUpdateCommand.Parameters.Add("@Data", SqlDbType.Binary); fileUpdateCommand.Parameters.AddWithValue("@ATTACHMENT_ID", newId); while (fileStream.Read(fileBuffer, 0, fileBuffer.Length) > 0) { fileUpdateCommand.Parameters["@Data"].Value = fileBuffer; fileUpdateCommand.ExecuteNonQuery(); <------ FAILS HERE } fileUpdateCommand.Dispose(); fileStream.Close(); Where it says "FAILS HERE", it sits for a while and then I get a SQL Server timeout error on the very first iteration through the loop. If I connect to the development database instead, everything works fine (it runs through the loop many, many times and the commit is successful). Both servers are identical (SQL Server 9.0.3042) and the schemas are identical as well. When I open Activity Monitor right after the timeout to see what's going it, it says the last command is (@Data binary(1024),@ATTACHMENT_ID decimal(4,0))update ATTACHMENT set ATTACHMENT_DATA.WRITE(@Data, NULL, NULL) where ATTACHMENT_ID = @ATTACHMENT_ID which I would expect but it also says it has a status of "Suspended" and a wait type of "PAGEIOLATCH_SH". I looked this up and it seems to be a bad thing but I can't find anything specific to my stuation. Ideas?

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• How to properly catch a 404 error in .NET

  - by Luke101

  I would like to know the proper way to catch a 404 error with c# asp.net here is the code I'm using HttpWebRequest request = (HttpWebRequest) WebRequest.Create(String.Format("http://www.gravatar.com/avatar/{0}?d=404", hashe)); // execute the request try { //TODO: test for good connectivity first //So it will not update the whole database with bad avatars HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Response.Write("has avatar"); } catch (Exception ex) { if (ex.ToString().Contains("404")) { Response.Write("No avatar"); } } This code works but I just would like to know if this is the most efficient.

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• NSDateFormatter dateFromString for 24hr date gives wrong time

  - by krusty

  I want to add event to native calender.I am having problem in getting date accurate time from string. I have set locale,24 hr format. but still getting the same bug. EKEvent *event = [EKEvent eventWithEventStore:self.eventStore]; event.title=txtTitle.text; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; NSLocale *locale =[[[NSLocalealloc]initWithLocaleIdentifier:@"en_US_POSIX"]autorelease]; [dateFormatter setLocale:locale]; [dateFormatter setDateFormat:@"dd/MM/yyyy HH:mm"]; event.startDate=[dateFormatter dateFromString:lblStartDate.text]; My lblStartDate.text is:-10/02/2011 12:12 PM And event.startDate is getting set as:-2011-02-10 06:42:00 GMT Can anyone help???

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• SQL? "Show me all the Activities that can be performed by User X."

  - by Casey Fulton

  I'm at my wits end. I've searched like crazy, read plenty of database textbooks and God knows how many online guides, blogs and forums. Can someone put me out of my misery? PseudoSchema Diagram (Warning: although pretty, not in a format even remotely approaching ER diagrams! Primary keys are bold, foreign keys are italics.) Given the above set of tables relating Users to Groups to Privileges, and then a set of Activities that can each require a Privilege to perform, how do you find out this: Show me all the Activities that can be performed by User X. That is: User X is a member of groups G and F; groups G and F correlate to privileges P, Q, R and S; show me all the activities that require privileges either P, Q, R or S. How do you do this?

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• Send asapMail without reloading page using ajax

  - by Darren Cook

  Hi, I have a form that posts data to an aspMail file for delivery (works fine in current format), but would like to have the form data sent without having to re-direct to another page. Looks like Ajax is the way to proceed but I'm having a problem getting the setup to work. Here's how I've changed the html: Added: $('#myForm').submit(function() { $.ajax({ data: $(this).serialize(), type: $(this).attr('post'), url: $(this).attr('aspSend.asp'), success: function(response) { $('#created').html(response) } }); }); Changed the form tag from: <form name="myForm" action"aspSend.asp"> to: <form name="myForm"> but now the emails don't arrive!! Any suggestions?

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• Using finch first time. How to play mp3,ogg or other formats (wav files to big) ?

  - by Allisone

  My *.wav's work as expected. But wav files are to big, so I want to play *.mp3 or *.ogg but it doesn't work. I use this lines of code found in the finch Demo project engine = [[Finch alloc] init]; sitar = [[Sound alloc] initWithFile:RSRC(@"sitar.wav")]; [sitar play]; So I only change sitar.wav into my .mp3 filename. Note 1: It mustn't be mp3 or ogg, any file format not as huge as wav should be ok, but which ? Note 2: I didn't know how to use sound, so I searched and found finch here at stackoverflow. It looks easy, so I would like to use that, but if you know some other easy way to play that sound files (ambient + effects sound with compressed codec) I would also switch to that other technique.

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• What are the pro and cons of having localization files vs hard coded variables in source code?

  - by corgrath

  Definitions: Files: Having the localization phrases stored in a physical file that gets read at application start-up and the phrases are stored in the memory to be accessed via util-methods. The phrases are stored in key-value format. One file per language. Variables: The localization texts are stored as hard code variables in the application's source code. The variables are complex data types and depending on the current language, the appropriate phrase is returned. Background: The application is a Java Servlet and the developers use Eclipse as their primary IDE. Some brief pro and cons: Since Eclipse is use, tracking and finding unused localizations are easier when they are saved as variables, compared to having them in a file. However the application's source code becomes bigger and bloated. What are the pro and cons of having localization text in files versus hard coded varibles in source code? What do you do and why?

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• Change the output of the Html.menu() asp control .

  - by user327893

  Im creating a asp mvc application and im using a sitemap to create my menu. Is it possible to change the output of the Html.menu() asp control? normal output: <ul> <li><a href="#">Item 1</li> <li><a href="#">Item 2</li> </ul> needed output: <ul> <li><a href="#"><span>Item 1</span></li> <li><a href="#"><span>Item 2</span></li> </ul> Or should i filter true the nodes of the sitemap to get the format i want?? TY in advance:)

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• How to load an RSA key from binary data to an RSA structure using the OpenSSL C Library?

  - by Andreas Bonini

  Currently I have my private key saved in a file, private.key, and I use the following function to load it: RSA *r = PEM_read_RSAPrivateKey("private.key", NULL, NULL, NULL); This works perfectly but I'm not happy with the file-based format; I want to save my key in pure binary form (ie, no base64 or similar) in a char* variable and load/save the key from/to it. This way I have much more freedom: I'll be able to store the key directly into the application const char key[] { 0x01, 0x02, ... };, send it over a network socket, etc. Unfortunately though I haven't found a way to do that. The only way to save and load a key I know of reads/saves it to a file directly.

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• Advice on simple efficient way to store web form data when no db/auth required

  - by ted776

  Hi, I have a situation where I need to provide an efficient way to process and store comments submitted via a web form. I would normally use PHP and either MySQL or XML to store the data, but this is slightly different in that this web form will only be temporarily available in a closed LAN environment, and all i need to do is process the form data and store it a format which can be accessed by another application on the LAN (Adobe Director). Each request made by the Director app should pop the stack of data. I'm wondering how best to store the data for this type of situation as it's not something I would normally do. I'm thinking possibly storing the data in an XML file, but any advice would be great!

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• Can Atom be used for things besides syndication feeds?

  - by greim

  Purely in terms of its conceptual model, is the purpose of Atom (and RSS) only to provide a time-sequential series of frequently-updated items, such as "most recent blog posts" or "last twenty SVN commits," or can Atom be legitimately used to represent static and/or non-time-sequential listings/indices? As an example, "index of files under this directory", "dog breeds" or "music genres". Even if there's a date associated with the items, like a file's last modified date, what if you don't necessarily want time to be the primary consideration when you represent that model to your users? The context for this is passing around (generating and consuming) lists of things in a REST-ful environment, hopefully using a well-understood format, where "date something was created/updated" is a pertinent detail, but not the primary consideration. I realize there's probably no right answer, but wanted to get some perspectives. Thanks.

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• How to represent datetime of deifferent time zomes in C#

  - by Mohoch

  Hi. I have a .NET WebService (written in C#), that is supposed to serve people around the world. With each request I get the user's datetime in his own time zone with the format : "yyyy/MM/dd HH:mm ZZZZ". I have to convert the string to something representing the original date and time and specifying the time zone in GMT. I have to make some logical calculations and keep it in the database. The regular DateTime doe's not support this. it does not have a property specifying the time zone. When I try to convert my string into DateTime - it simply converts it to my local time. I do not want to keep my time in UTC, because I have some logic that has to run per user by his own time. Does anyone know a C# class that handles this? Thanks!

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• Prolog term concatenation

  - by d0pe

  Hi, I'm trying to format a result from a program but getting an hard time. I wanted to give something like this as result: Res = do(paint(x) do(clean(a), do(repair(b) , initialState))) basically, I want to concatenate successive terms to initialState atom but, it doesn't work with atom_concat since the other terms to concatenate aren't atoms and also I wanted to add the ) everytime I pass through the "do" function. So it would be something like: Res = initialState. When do function was called, I would have a function like concatenateTerm(Pred, Res, Res). Pred beeing repair(b) for instance and obtain the result: res = do(repair(b), initialState). Is this possible to be done? Thanks

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• HttpwebRequest Simulate Click

  - by Afnan

  I was working on httpwebrequest and was trying to search google get result and simulate click to desired link. Is that possible? string raw ="http://www.google.com/search?hl=en&q={0}&aq=f&oq=&aqi=n1g10"; string search = string.Format(raw, HttpUtility.UrlEncode(searchTerm)); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(search); request.Proxy = prox; using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) { using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.ASCII)) { HtmlElementCollection html = reader.ReadToEnd(); browserA=reader.ReadToEnd(); this.Invoke(new EventHandler(IE1)); } }

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• SEO URL building - simple or hierarchy

  - by Pawel

  I run an online shop and I wonder what would be more SEO-friendly URL for a product page: a) domain.com/category-name/product-name OR b) domain.com/product-name I already have URL-s for product category pages with format domain.com/category-name. On one hand I heard (but cannot find proof for) that Google like tree hierarchies in URL (vote for "a"). On the other hand though longer URL could lead to smaller kewyord density, also "product_name" comes as the last URL part so probably the least important (vote for "b"). Maybe both options are equally SEO-effective? PS. I know about canonical URL's but this is not the case, I don't want/need both URL's formats, just want to choose the best.

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• Using Apache Velocity with StringBuilders/CharSequences

  - by mindas

  We are using Apache Velocity for dynamic templates. At the moment Velocity has following methods for evaluation/replacing: public static boolean evaluate(Context context, Writer writer, String logTag, Reader reader) public static boolean evaluate(Context context, Writer out, String logTag, String instring) We use these methods by providing StringWriter to write evaluation results. Our incoming data is coming in StringBuilder format so we use StringBuilder.toString and feed it as instring. The problem is that our templates are fairly large (can be megabytes, tens of Ms on rare cases), replacements occur very frequently and each replacement operation triples the amount of required memory (incoming data + StringBuilder.toString() which creates a new copy + outgoing data). I was wondering if there is a way to improve this. E.g. if I could find a way to provide a Reader and Writer on top of same StringBuilder instance that only uses extra memory for in/out differences, would that be a good approach? Has anybody done anything similar and could share any source for such a class? Or maybe there any better solutions to given problem?

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• Generating random numbers in C

  - by moonstruckhorrors

  While searching for Tutorials on generating random numbers in C I found This Topic When I try to use the rand() function with parameters, I always get the random number generated 0. When I try to use the rand() function with parameters, I always get the value 41. And whenever I try to use arc4random() and random() functions, I get a LNK2019 error. Here's what I'm doing: #include <stdlib.h> int main() { int x; x = rand(6); printf("%d", x); } This code always generate 41. Where am I going wrong?? P.S. : I'm running Windows XP SP3 and using VS2010 Command Prompt as compiler. P.P.S. : Took me 15 minutes to learn how to format properly.

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• Database Table design for Weekdays and Values

  - by Ved

  Guys, I would love to here your ideas on this. I am creating a table which will store weekly shift hours for employees. for example: Jon works 9:00am tp 9:00pm Monday , 10:00 AM to 5:00PM on Tuseday etc.... How should i go on designing this table. I thought of 2 options. (1) For every record I can have two lines for AM and PM and have columns for Monday to Sunday ID | ParentID | Type | Monday | Tuseday ......Sunday 1 | 1 | AM | 9:00 | 9:00 12:00 2 | 1 | PM | 9:00 | 5:00 02:00 3 | 2 | AM | 10:00 | 4 | 2 | PM | 10:00 | (2) I can save Preference in XML format in one column ID | Info 1 | |Hours|Monday|9:00 AM - 9:00PM|Monday|Tuseday........|Hours Any better ideas ? Thanks

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• session timeout urgent help needed

  - by nandu

  hi! in my website when session gets timed out nd after that we click on any button or perform action it gives random error as input string not in correct format.. how do i resolve problem?? i've 500 pages in whole website...and 20 master pages...so can't check for session on each page... i wrote code in global.asax application_error method...tht if error occur and session is null than redirect to default page..it worked....but when page is in frame..it does not refresh the whole pahe..only frame redirects the page...so the panel of master page remains same..

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• Getting Stored Procedure Information from .Net

  - by Ben

  Hi, I am trying to get some data relevant to a stored procedure (or funtion) back from a database using .Net. The first thing I need to be able to do, is get the stored proc from the database and turn it into string format. The information I need is: The return set of columns, tables used within the SP, Stored Procedures called from the SP. The only way of doing this at the moment that i can think of, is though parsing the text and looking for keyword matches. Is there a better way of doing this? Any ideas? Thanks.

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• Using excel import wizard through code?

  - by baron

  I am creating a Generate Report button for some data in my application. The report will just generate a CSV file, which I then automatically launch in excel. Problem is with one of the data fields, is text and has leading zeroes (which I need to keep). When the file is automatically opened in excel, excel automatically trims these. Is there anyway I can get it so that it opens with the data in the format I want it. I know you achieve this normally by opening the CSV file from within excel and can do the import wizard. So one potential solution would be to auto open the import wizard when the app launches this file. I don't know if this is possible. Thanks for reading.

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• Question about POP3 message termination octet

  - by user361633

  This is from the POP3 RFC. "Responses to certain commands are multi-line. In these cases, which are clearly indicated below, after sending the first line of the response and a CRLF, any additional lines are sent, each terminated by a CRLF pair. When all lines of the response have been sent, a final line is sent, consisting of a termination octet (decimal code 046, ".") and a CRLF pair. If any line of the multi-line response begins with the termination octet, the line is "byte-stuffed" by pre-pending the termination octet to that line of the response. Hence a multi-line response is terminated with the five octets "CRLF.CRLF". When examining a multi-line response, the client checks to see if the line begins with the termination octet. If so and if octets other than CRLF follow, the first octet of the line (the termination octet) is stripped away. If so and if CRLF immediately follows the termination character, then the response from the POP server is ended and the line containing ".CRLF" is not considered part of the multi-line response." Well, i have problem with this, for example gmail sometimes sends the termination octet and then in the NEXT LINE sends the CRLF pair. For example: "+OK blah blah" "blah blah." "\r\n" That's very rare, but it happens sometimes, so obviously i'm unable to determine the end of the message in such case, because i'm expecting a line that consists of '.\r\n'. Seriously, is Gmail violating the POP3 protocol or i'm doing something wrong? Also i have a second question, english is not my first language so i cannot understand that completely: "If any line of the multi-line response begins with the termination octet, the line is "byte-stuffed" by pre-pending the termination octet to that line of the response. Hence a multi-line response is terminated with the five octets "CRLF.CRLF"." When exactly CRLF.CRLF is used? Can someone gives me a simple example? The rfc says that is used when any line of the response begins with the termination octet. But i don't see any lines that starts with '.' in the messages that are terminated with CRLF.CRLF. I checked that. Maybe i don't understand something, that's why i'm asking.

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• extract data from an array without using loop in R

  - by Manolo

  I have a vector v with row positions: v<-c(10,3,100,50,...) with those positions I want to extract elements of a matrix, having a column fixed, for example lets suppose my column number is 2, so I am doing: data<-c() data<-c(matrix[[v]][[2]]) matrix has the data in the following format: [[34]] [1] "200_s_at" "4853" "1910" "3554" "2658" So for example, I want to extract from the row 342 the value 1910 only, column 2, and do the same with the next rows but I got an error when I want to do that, is it possible to do it directly? or should I have a loop that read one by one the positions in v and fill the data vector like: #algorithm for i<-1 to length(v) pos<-v[i] data[[i]]<-c(matriz[[pos]][[2]]) next i Thanks

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