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• How can I automatically retrieve a CSV file from web, save it in a directory, and access it in C#?

  - by George Tyler

  I am working on an application which has to retrieve data from a CSV file online and display it with a click of a button. However, how can I automatically store the CSV file in a safe place where I can access the information? I am working with Visual Studio C#. Thank you.

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• WPF Property Data binding to negate the property

  - by azamsharp

  Is there any way to change the value of property at runtime in WPF data binding. Let's say my TextBox is bind to a IsAdmin property. Is there anyway I can change that property value in XAML to be !IsAdmin. I just want to negate the property so Valueconverter might be an overkill! NOTE: Without using ValueConverter

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• Asp.net's ObjectDataSource data bind event

  - by DJPB

  Hi there I'm Working on an Asp.net/C# application. I want to bind a list of objects to a grid view. I've been looking a while to the ObjectDataSource control and it loads data to my datagrid as soon as my page loads. Can I change this behaviour? For example, how can I set DataBinding only when a button on my page gets clicked? tks

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• How to output binary data to a socket with Ruby

  - by Earlz

  Hello I have a very simple HTTP ruby server. I want it to simply server a PNG image. So I sent headers like image/png but I think that Ruby is converting the image data to a string first. Here is my relevant code webserver = TCPServer.new('127.0.0.1', 20001) while (session = webserver.accept) #.... file = File.open("tmp_testserve.png", "rb") contents = file.read file.close session.print @content session.close #.... Is this what is happening?

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• How to get array with clear data from Active Record query without using map

  - by Suborx

  Hi I would like to ask if its possible get array with clear data from ActiveRecord query without using map, collect or each. names = User.find(:all, :select => "name") return names == [#<User name:"Peter">,#<User name:"Martin">] and I want names == ["Peter", "Martin"] without using map, collect or each. Thanks for your answers.

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• iPhone - How to access raw touch data using lower-level private frameworks - GraphicServices, IOKit

  - by Adam

  I'm looking for a way to access raw data from the iPhone touchscreen, does anyone have any experience with this? What I need seems to be in one or the other of these private frameworks, but I haven't been able to incorporate them into my project; do I have to download the .h and binary files? Thanks!

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• informatica mapping examples

  - by user223541

  i want to devlope generic mapping for handling data bases errors in Informatica. Can any one give me any examples of such mappings ? Also can u suggent me some resources for informatica samples mappings (livw webiste or links)

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• How to merge data using php.

  - by bob

  Currently my MySQL data stored like below product | total ------------------------------------------ puma,adidas | 100.00,125.00 puma | 80.00 reebok,adidas,puma | 70.00,100.00,125.00 adidas,umbro | 125.00,56.00 How to combine, explode, merge and total it like this in php? puma 485.00 adidas 350.00 reebook 70.00 umbro 56.00

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• Dump mysql view as a table with data - version 2

  - by jono2010

  Hello, Q: Is there a way to direct MYSQLDUMP to export VIEW's with data (and not just the CREATE SQL)? I want to use the resulting SQL to create a new table. Thanks! Jon

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• C# Custom data type!

  - by Betamoo

  After I decided at last to implement my Int128 in C#, I thought it would be nice to make it look like other dotNet data types.. But I could not implement the following feature: suffix initialization: such as 13L and 0.2D Can I make my own suffix in C#? And if I can not.. how can I initialize it? i.e Int128 a= ??

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• Updating a Data Source with a Dataset

  - by Paul

  Hi, I need advice. I have asp.net web service and winforms client app. Client call this web method and get dataset. 1. [WebMethod] 2. public DataSet GetSecureDataSet(string id) 3. { 4. 5. 6. SqlConnection conn = null; 7. SqlDataAdapter da = null; 8. DataSet ds; 9. try 10. { 11. 12. string sql = "SELECT * FROM Tab1"; 13. 14. string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; 15. 16. conn = new SqlConnection(connStr); 17. conn.Open(); 18. 19. da = new SqlDataAdapter(sql, conn); 20. 21. ds = new DataSet(); 22. da.Fill(ds, "Tab1"); 23. 24. return ds; 25. } 26. catch (Exception ex) 27. { 28. throw ex; 29. } 30. finally 31. { 32. if (conn != null) 33. conn.Close(); 34. if (da != null) 35. da.Dispose(); 36. } 37. } After he finish work he call this update web method. He can add, delete and edit rows in table in dataset. [WebMethod] public bool SecureUpdateDataSet(DataSet ds) { SqlConnection conn = null; SqlDataAdapter da = null; SqlCommand cmd = null; try { DataTable delRows = ds.Tables[0].GetChanges(DataRowState.Deleted); DataTable addRows = ds.Tables[0].GetChanges(DataRowState.Added); DataTable editRows = ds.Tables[0].GetChanges(DataRowState.Modified); string sql = "UPDATE * FROM Tab1"; string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; conn = new SqlConnection(connStr); conn.Open(); cmd = new SqlCommand(sql, conn); da = new SqlDataAdapter(sql, conn); if (addRows != null) { da.Update(addRows); } if (delRows != null) { da.Update(delRows); } if (editRows != null) { da.Update(editRows); } return true; } catch (Exception ex) { throw ex; } finally { if (conn != null) conn.Close(); if (da != null) da.Dispose(); } } Code on client side 1. //on client side is dataset bind to datagridview 2. Dataset ds = proxy.GetSecureDataSet(""); 3. ds.AcceptChanges(); 4. 5. //edit dataset 6. 7. 8. //get changes 9. DataSet editDataset = ds.GetChanges(); 10. 11. //call update webmethod 12. proxy.SecureUpdateDataSet(editDataSet) But it finish with this error : System.Web.Services.Protocols.SoapException: Server was unable to process request. --- System.InvalidOperationException: Update requires a valid UpdateCommand when passed DataRow collection with modified rows. at WebService.Service.SecureUpdateDataSet(DataSet ds) in D:\Diploma.Work\WebService\Service1.asmx.cs:line 489 Problem is with SQL Commad, client can add, delete and insert row, how can write a corect SQL command.... any advice please? Thank you

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• want to know the exact size of a data contend in any specified url

  - by hardik

  hi all i want to know that while specifying url in my iphone native application for downloading purpose it works fine but if i want to know the exact size of data either in kb or in Mb coming from that url how could i do that plz guide me to do that demonstarting a sample code would be a big boost thanks

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• MySQL query to view vertical data

  - by wenkhairu

  I have MySQL data that looks like this: +----------------------------------------+ |Name | kode | jum | +----------------------------------------+ | aman |kode1 | 2 | | aman |kode2 | 1 | | jhon |kode1 | 4 | | amir |kode2 | 4 | +--------------------+-----------+-------+ How can I make the table look like this one, using a MySQL query? kode1 kode2 count aman 2 1 3 jhon 0 4 4 amir 0 4 4

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• disable textBox ability to display old data typed in it

  - by DanSogaard

  When user start typing in their username in textBox field, a dropdown list shows old data. How can I clear this?. It's a class room and many students logs in from the same pc everyday, I don't want the student to see his mates usernames.

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• Regular expression to validate whether the data contains numeric ( or empty is also valid)

  - by VinnaKanna

  Hi all, i have to validate the data contains numeric or not and if it is not numeric return 0 and if it is numeric or empty return 1. Below is my query i tried in SQL SELECTdbo.Regex('^[0-9]','123') --- This is returning 1 SELECTdbo.Regex('^[0-9]','') -- this is not returning 1 but i want to return as 1 and i try to put space in "pattern" also it is not working... please can any one help.... Thanks in advance

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• Android: handle unexpected internet disconnect while downloading data

  - by M.A. Cape

  Hi, I have here a function that downloads data from a remote server to file. I am still not confident with my code. My question is, what if while reading the stream and saving the data to a file and suddenly I was disconnected in the internet, will these catch exceptions below can really catch that kind of incident? If not, can you suggest how to handle this kind of incident? Note: I call this function in a thread so that the UI won't be blocked. public static boolean getFromRemote(String link, String fileName, Context context){ boolean dataReceived = false; ConnectivityManager connec = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); if (connec.getNetworkInfo(0).isConnected() || connec.getNetworkInfo(1).isConnected()){ try { HttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(link); HttpParams params = httpClient.getParams(); HttpConnectionParams.setConnectionTimeout(params, 30000); HttpConnectionParams.setSoTimeout(params, 30000); HttpResponse response; response = httpClient.execute(httpGet); int statusCode = response.getStatusLine().getStatusCode(); if (statusCode == 200){ HttpEntity entity = response.getEntity(); InputStream in = null; OutputStream output = null; try{ in = entity.getContent(); String secondLevelCacheDir = context.getCacheDir() + fileName; File imageFile = new File(secondLevelCacheDir); output= new FileOutputStream(imageFile); IOUtilities.copy(in, output); output.flush(); } catch (IOException e) { Log.e("SAVING", "Could not load xml", e); } finally { IOUtilities.closeStream(in); IOUtilities.closeStream(output); dataReceived = true; } } }catch (SocketTimeoutException e){ //Handle not connecting to client !!!! Log.d("SocketTimeoutException Thrown", e.toString()); dataReceived = false; } catch (ClientProtocolException e) { //Handle not connecting to client !!!! Log.d("ClientProtocolException Thrown", e.toString()); dataReceived = false; }catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); dataReceived = false; Log.d("MalformedURLException Thrown", e.toString()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); dataReceived = false; Log.d("IOException Thrown", e.toString()); } } return dataReceived; }

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• Use API or SQL to detect new Support Tickets?

  - by David Powers

  I currently work for a company that uses Kayako for their support system. They sell an extra program called Insta Alert that plays a sound when a new ticket is submitted. I use WHMCS for my own company, and would like to develop something to work with it that does the same thing. Here is the WHMCS API... http://wiki.whmcs.com/API:Functions I am wondering if it would make more sense from a remote C++ application to use the API or just check the MySQL database for new tickets? This is not really something im overly familiar with (I usually make mods) but it doesn't seem overly difficult. I just want some assistance in choosing the best approach.

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• Looking for a visualization and charting package

  - by Jeff Meatball Yang

  I have some specific requirements, with the most important at the top: Can plot line and stacked bar charts Can customize mouse events (hover, click) on chart data Compatible and performant with IE7/8 (likely will use excanvas.js) Can optionally control label formats, legends, colors Open source preferred, or at least can purchase the source Can be hosted locally I have seen a couple potentially good ones: Google's interactive charts (But code must be accessed via Google servers) EJSChart Flot Does anyone have experience with these, or others, and can make a recommendation?

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• How to use RESTEasy client framework to send data in a POST

  - by David Escandell

  I am using the RESTEasy client framework to call a RESTful webservice. The call is made via a POST and sends some XML data to the server. How do I accomplish this? What is the magical incantation of annotations to use to make this happen?

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• Generate data classes failed ?

  - by user301089

  Hi everyone, I use MonoDevelop 2.2.2 with Mono 2.6.3 on OpenSuse so the linq to sql feature is implemented. But I have the problem I can create a new connexion to a postgresql database it's ok but when I click in Tool - Generate Data classes and select the connexion I've created before I obtain nothing, no tables appear. What's the problem ?

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• Power function fit to data set

  - by czerasz

  I have a set of data (in ArrayCollection) and I need to fit a power function { f(x)= B + x^alpha } to it, before display in LineChart. As result I need the alpha and B paremeter. How to do this with Flex?

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• Restructuting XML Data

  - by Frank

  Hi! The following is an excerpt of my XML data source: <file> <ALL_INSTANCES> <instance> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> <code>Player 1</code> </instance> <instance> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> <code>Player 2</code> </instance> <instance> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> <code>Player 3</code> </instance> <instance> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> <code>Speler 1</code> </instance> </ALL_INSTANCES> I'm looking to restructure this data into something like this: <Player 1> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> </Player 1> <Player 1> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> </Player 1> <Player 2> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> </Player 2> <Player 3> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> </Player 3> Could anyone please help me to achieve this? Much appreciated! Cheers, Frank

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• Jquery .Ajax error when trying to POST data in MVC C#

  - by GB

  Hello, I am unable to access an action in my controller using .ajax. The code works on my development machine but as soon as I place it on the server it gives the error 401 Unauthorized. Here is a snippet of the code in the .aspx file... var encoded = $.toJSON(courseItem); $.ajax({ url: '<%= Url.Action("ViewCourseByID", "Home") %>/', type: "POST", dataType: 'json', data: encoded, //contentType: "application/json; charset=utf-8", success: function(result) { Thank you for the help.

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• MySQL fields terminated by tab

  - by Brian

  I am trying to upload a tab delimitted file with MySQL. I want a query something likes this: LOAD DATA LOCAL INFILE 'file' INTO TABLE tbl FIELDS TERMINATED BY 'TAB' Is there something I can subsitute for TAB to make this work?

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• Database design for heavy timed data logging

  - by user293995

  Hi, I have an application where I receive each data 40.000 rows. I have 5 million rows to handle (500 Mb MySQL 5.0 database). Actually, thoses rows are stored in the same table = slow to update, hard to backup, ... Which king of scheme is used in such application to allow long term accessibility to the datas without problems with too big tables, easy backup, fast read / write ? Is postgresql better than mysql for such purpose ? Thanks in advance BEst regards

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