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• Can i write to data output stream after reading response from data input stream?

  - by Sirius

  Hi, i want to do a client-server activity like this: 1. first the client sends/writes to output stream 2. the server responses with some data that will be read with input stream 3. after receiving the data, the client sends/writes to output stream again to respond that the data has been received now, do i have to close the output stream and re-open it again before doing step no.3 ? also if someone could provide me with a snippet, it would be really helpful. thanks

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• using the data-custom="" to bind to events

  - by Dean Peterson

  I'm pretty sure I'm gonna get slammed on this. I love using the data-whatever attribute to bind events to. It feels very clean to me and helps reserve my class attribute for just styling. I know this selector is among the slowest, so I don't use it when there are a lot of elements. Would love to hear compelling arguments against this. $("body").delegate("[data-action]", "click", function(){ var action = $(this).attr("data-action"); //route action to appropriate function });

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• sort data in c language

  - by ANIL MANE

  Hello C experts, I need little help on following requirement, as I know very little about C syntaxes. I have data in a file like this 73 54 57 [52] 75 73 65 [23] 65 54 57 [22] 22 59 71 [12] 22 28 54 [2] 65 22 54 73 [12] 65 28 54 73 [52] 22 28 65 73 [42] 65 54 57 73 [22] 22 28 54 73 [4] Where values in bracket denotes the occurrence of that series. I need to sort this data based on the occurrence of the data descending with maximum elements on the top as follows 65 28 54 73 [52] 22 28 65 73 [42] 65 54 57 73 [22] 65 22 54 73 [12] 22 28 54 73 [4] 28 59 71 [122] 73 54 57 [52] 22 28 65 [26] .. . . . and so on... Can someone give me a quick code for this. Thanks in advance.

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• Passing URL parameter and a form data together

  - by Fabio

  I have following URL: http://localhost:49970/Messages/Index/9999 And at view "Index" I have a form and I post the form data to the action Index (decored with [HttpPost]) using Jquery, like this: View: <script type="text/javascript"> function getMessages() { var URL = "Index"; $.post( URL, $("form").serialize(), function(data) { $('#tabela').html(data); } ); } </script> <% using (Html.BeginForm()) {%> <%=Html.TextArea("Message") %> <input type="button" id="submit" value="Send" onclick="javascript:getMessages();" /> <% } %> Controller: [HttpPost] public ActionResult Index(FormCollection collection) { //do something... return PartialView("SomePartialView", someModel); } My question: How can I get the parameter "9999" and the form FormCollection in the action Index? PS: Sorry about my english :)

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• Reading timecode track data using the C# version of Quicktime

  - by tinmaru

  Hi, I'm using the .Net activeX component of Quicktime. I would like to read the timecode track data contained in a QTMovie track. I can already select my timecode track like this : // Valid Quicktime movie QTMovie movie; QTUtils qtu = new QTUtils(); for (int i = 1; i <= movie.Tracks.Count; i++) { if (movie.Tracks[i].Type == qtu.StringToFourCharCode("tmcd")) { QTTrack tcTrack = movie.Tracks[i]; // // Timecode data reading ? // } Is there a way to extract the timecode data? Thank you for your help!

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• To Wrap or Not to Wrap: Wrapping Data Access in a Service Facade

  - by PureCognition

  For a while now, my team and I have been wrapping our data access layer in a web service facade (using WCF) and calling it from the business logic layer. Meanwhile, we could simply use the repository pattern where the business logic layer consumes the data access layer locally through an interface, and at any point in time, we can switch things out for it to hit a service instead (if necessary). The question is: When is it a good time to wrap the data access layer in a service facade and when isn't it? Right now, it seems like the main advantage is that other applications can consume the service, but if they are internal applications written in .NET then they can just consume the .NET assembly instead. Are there other advantages of having the DAL be wrapped in a service that I am unaware of?

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• Importing large datasets on iPhone using CoreData

  - by Matthes

  Hi there, I'm facing very annoying problem. My iPhone app is loading it's data from a network server. Data are sent as plist and when parsed, it neeeds to be stored to SQLite db using CoreData. Issue is that in some cases those datasets are too big (5000+ records) and import takes way too long. More on that, when iPhone tries to suspend the screen, Watchdog kills the app because it's still processing the import and does not respond up to 5 seconds, so import is never finished. I used all recommended techniques according to article "Efficiently Importing Data" http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/CoreData/Articles/cdImporting.html and other docs concerning this, but it's still awfully slow. Solution I'm looking for is to let app suspend, but let import run in behind (better one) or to prevent attempts to suspend the app at all. Or any better idea is welcomed too. Any tips on how to overcome these issues are highly appreciated! Thanks

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• Real-time data on webpage with Django and jQuery

  - by Steven Hepting

  I would like a webpage that constantly updates a graph with new data as it arrives. Regularly, all the data you have is passed to a Django view at the beginning of the request. However, I need the page to be able to update itself with fresh information every few seconds to redraw the graph. Background The webpage will be similar to this http://www.panic.com/blog/2010/03/the-panic-status-board/. The data coming in will temperature values to be graphed measured by an Arduino and saved to the Django database (I've already done this part).

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• Parsing specific numeric data from csv file using python

  - by KJ Lim

  Good morning. I have series of data in cvs file like below, 1,,, 1,137.1,1198,1.6 2,159,300,0.4 3,176,253,0.3 4,197,231,0.3 5,198,525,0.7 6,199,326,0.4 7,215,183,0.2 8,217.1,178,0.2 9,244.2,416,0.5 10,245.1,316,0.4 I want to extract specific data from second column for example 217.1 and 245.1 and have them concatenated into a new file like, 8,217.1,178,0.2 10,245.1,316,0.4 I use cvs module to read my cvs file, but, I can't extract specific data as I desire. Could anyone kindly please help me. Thank you.

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• EasyXDM passing data issue

  - by Jeff Ryan

  I'm using rpc with XDM, and I can send simple data back and forth easily between child and parent window. But it seems to be limited to simple strings and numbers. The demos on the site only use numbers. When I try to send a json ecoded string, I get a cross domain error. When I use cors, I can make ajax requests fine, but I can't display the child page in the iframe, because the data is returned and not rendered. My question is, how can I render an iframe, and pass complex data back and forth. Or maybe I am doing something wrong?

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• Streaming support for flex with Ruby On Rails (working with live data )

  - by Ashine

  Hi Freinds, I am working on flex dasboards and charting stuff. Till now I have build them for static data only now I want to upgrade them to work for real time data where new data is continuosly sent to client (swf file) from server and it updates the same. I am using Ruby On Rails (RoR) at server side. Is there some thing similar to 'Adbobe live cycle(Java-Flex)' applicable for RoR-Flex architecture that can be used here ? Please share the links for any similar implementation in RoR-Flex architecture. Or if you have some suggestions to share I will really appreciate. Thanks friends.

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• Is SSIS able to query flat files from another Windows Server?

  - by atricapilla

  I pretty new SQL Server Integration Server (SSIS) user. Is SSIS able to query data from text files located in another Windows Server? I mean that when SSIS is installed on Windwos Server A, is SSIS able to query data from e.g. one folder containing text files in Windows Server B (under same domain)? I have used only SAP BO Data Integrator ETL tool and it cannot query flat files from another Server: during execution, all files must be located on the Job Server machine that executes the job.

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• Load Excel data into Linux / wxWidgets C++ application?

  - by Milan Babuškov

  I'm using wxWidgets to write cross-plafrom applications. In one of applications I need to be able to load data from Microsoft Excel (.xls) files, but I need this to work on Linux as well, so I assume I cannot use OLE or whatever technology is available on Windows. I see that there are many open source programs that can read excel files (OpenOffice, KOffice, etc.), so I wonder if there is some library that I could use? Excel files it needs to support are very simple, straight tabular data. I don't need to extract any formatting except column/row position and the data itself.

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• Powershell - Splitting variable into chunks

  - by Andrew

  I have written a query in Powershell interrogating a F5 BIG-IP box through it's iControl API to bring back CPU usage etc. Using this code (see below) I can return the data back into a CSV format which is fine. However the $csvdata variable contains all the data. I need to be able to take this variable and for each line split each column of data into a seperate variable. The output currently looks like this: timestamp,"Utilization" 1276181160,2.3282800000e+00 Any advice would be most welcome $SystemStats = (Get-F5.iControl).SystemStatistics ### Allocate a new Query Object and add the inputs needed $Query = New-Object -TypeName iControl.SystemStatisticsPerformanceStatisticQuery $Query.object_name = $i $Query.start_time = $startTime $Query.end_time = 0 $Query.interval = $interval $Query.maximum_rows = 0 ### Make method call passing in an array of size one with the specified query $ReportData = $SystemStats.get_performance_graph_csv_statistics( (,$Query) ) ### Allocate a new encoder and turn the byte array into a string $ASCII = New-Object -TypeName System.Text.ASCIIEncoding $csvdata = $ASCII.GetString($ReportData[0].statistic_data)

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• Any clever way to fix 'string or binary data would be truncated' warning with LINQ

  - by Simon_Weaver

  Is there a clever way to determine which field is causing 'string or binary data would be truncated' with LINQ. I've always ended up doing it manually by stepping through a debugger, but with a batch using 'SubmitChanges' I have to change my code to inserting a single row to find the culprit in a batch of rows. Am I missing something or in this day and age do I really have to still use a brute force method to find the problem. Please dont give me advice on avoiding this error in future (unless its something much cleverer than 'validate your data'). The source data is coming from a different system where I dont have full control anyway - plus I want to be lazy. PS. Does SQL Server 2008 actually tell me the field name. Please tell me it does! I'll upgrade!

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• Storing i18n data in a database using XML

  - by TigrouMeow

  Hello, I may have to store some i18n-ed data in my database using XML if I don't fight back. That's not my choice, but it's in the specifications I have to follow. We would have, by example, something like following in a 'Country' column: <lang='fr'>Etats-Unis</lang> <lang='en'>United States</lang> This would apply to many columns in the database. I don't think it's a good idea at all. I tend to think that a cell in a database should represent a single piece of data (better for look-up), and that the database should have two dimensions maximum and not 3 or more (one request more would be required per dimension / a dimension here would be equal to the number of XML attributes). My idea was to have a separate table for all the translations, with columns such as : ID / Language / Translation. However, I should admit that I'm really not sure what is the best way to store data in various languages in a DB... Thanks for your advices :)

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• How can I programatically convert SQL data-types to .Net data-types?

  - by Simon

  Can anyone show me a way of converting SQL Server data-types (varchar for example) to .Net data-types (String for example). I'm assuming that automatic conversion is not possible? I have an 'EntityProperty' object and would like it to have an appropriate 'Type' property (string, decimal, int32 etc), at the moment this property is just a string - 'int32' for example. A little background: I'm using SQL DMO in an internal code generation app to query a database and generate a stored procedure based DAL from the database. Being an internal app I can take quite a few shortcuts and make quite a few assumptions. To get the app working at the moment this data-type conversion is handled by a Select Case statement which just converts the types to strings and generates a set of properties based on these strings but I would prefer a little more flexibility in being able to handle the types (use of TypeOf etc). Anyone worked on something similar? I know EF, nHibernate, Subsonic etc could do all this for me but in this case, for various reasons, I am having to roll my own. :)

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• jQuery get Function Not Returning Data

  - by senfo

  I'm trying to use the jQuery get function to render the results of an HTML page in a div on my page. The result of the get function appears to be successful because the value of textStatus (in the following code block) is "success". The value of data, however, is always empty. $(document).ready(function() { $.get('http://www.google.com', function(data, textStatus){ $('#RSSContent').html(textStatus + ' ' + data); }); }); Any idea what I might be doing wrong? Note: The final code will query an RSS feed, which I plan on transforming and rendering as HTML in the RSSContent div. I simply used http://www.google.com for testing purposes.

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• cannot display json data returned from jquery ajax call

  - by amby

  Hi, can somebody please tell me, how can I display json data returning from the ajax call. I am new to this. $.ajax({ type: "POST", dataType: 'JSON', //data: "{'ntid':'john'}", //contentType: "application/json; charset=utf-8", //processData: false, url: "Testing.aspx/SendMessage", error: function(XMLHttpRequest, textStatus, errorThrown) { alert(textStatus); }, success: function(result, txtStatus, httpRequest) { alert(txtStatus); the_object = result; $('#status').html(concatObject(the_object)); } above is the js file. should i need to do something on asp file directly to display it. if yes, then how? please reply me soon. i m stuck here and unable to display data here

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• Postback problem? Not getting data back from DB

  - by Jason Shultz

  I'm not getting back data from my DB like I'm expecting. I know that I can get data from the DB because I have other functions working. With this page, what I'm trying to do is the following: If no postback, then I would like it to echo "No Category Selected" If a category has been chosen, then I would like for it to get that data from the DB and show it on the page. I'm sure I can do this all in one view, I'm just not doing something right. Can someone help please? Pastebin: http://pastebin.com/AQqcvnAb

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• Can't see or add Website Data Sources in RDLC report in ASP.NET MVC

  - by RobertC

  In the RDLC report, in Design view in Visual Studio 2008, we don't see anything in the Website Data Sources tab and the button to Add New Data Source is grayed out. Only the Refresh button is enabled, and clicking it doesn't do anything. Our business logic layer returns Lists of business objects and the business logic and business object projects are both referenced by the MVC project. This is an MVC app, so there is no App_Code folder. How do we get our business objects to appear in the Website Data Sources list so we can drag and drop fields from the object onto our RDLC report?

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• Jquery post and get data from PHP

  - by Sergio

  Jquery code looks like: $('#gal').rating('gl.php?gal_no=<?=$gal_no;?>&id=<?=$id;?>', {maxvalue:10,increment:.5, curvalue: <?=$cur;?>}); PHP code: $br=mysql_query("SELECT count(gal) as total FROM ...") if ... { echo '0'; } else echo '1'; } Jquery code successfully transmitted data to PHP script and when the PHP done with checking data echo the result ('1' or '0'). How can I get this PHP result back to Jquery and based on them write a message? Some thing like: if(data=="1") { $("#error").show("fast").html('not correct').css({'background-color' : '#F5F5F5','border-color' : '#F69'}); }else{ $("#error").show("fast").html('correct').css({'background-color' : '#FFF','border-color' : '#3b5998'}); }

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• GAE and Socket Data

  - by Vinod

  I have a field device which keeps on sending data over to any designated port using sockets. I am planning to use GAE for server-side infrastructure. I read GAE does not support sockets. But i can configure the device to send the data over port 80. so we wrote a genericservlet to capture this data on GAE. But it is not obtaining any values from the client. any suggestions to fix this issue?

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• how to prune data set?

  - by sakura90

  The MovieLens data set provides a table with columns: userid | movieid | tag | timestamp I have trouble reproducing the way they pruned the MovieLens data set used in: http://www.cse.ust.hk/~yzhen/papers/tagicofi-recsys09-zhen.pdf In 4.1 Data Set of the above paper, it writes "For the tagging information, we only keep those tags which are added on at least 3 distinct movies. As for the users, we only keep those users who used at least 3 distinct tags in their tagging history. For movies, we only keep those movies that are annotated by at least 3 distinct tags." I tried to query the database: select TMP.userid, count(*) as tagnum from (select distinct T.userid as userid, T.tag as tag from tags T) AS TMP group by TMP.userid having tagnum = 3; I got a list of 1760 users who labeled 3 distinct tags. However, some of the tags are not added on at least 3 distinct movies. Any help is appreciated.

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• a question on webpage data scraping using Java

  - by Gemma

  Hi there. I am now trying to implement a simple HTML webpage scraper using Java.Now I have a small problem. Suppose I have the following HTML fragment. <div id="sr-h-left" class="sr-comp"> <a class="link-gray-underline" id="compare_header" rel="nofollow" href="javascript:i18nCompareProd('/serv/main/buyer/ProductCompare.jsp?nxtg=41980a1c051f-0942A6ADCF43B802'); " Compare Showing 1 - 30 of 1,439 matches, The data I am interested is the integer 1.439 shown at the bottom.I am just wondering how can I get that integer out of the HTML. I am now considering using a regular expression,and then use the java.util.Pattern to help get the data out,but still not very clear about the process. I would be grateful if you guys could give me some hint or idea on this data scraping. Thanks a lot.

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