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  • How can i return dataset perfectly from sql?

    - by Phsika
    i try to write a winform application: i dislike below codes: DataTable dt = new DataTable(); dt.Load(dr); ds = new DataSet(); ds.Tables.Add(dt); Above part of codes looks unsufficient.How can i best loading dataset? public class LoadDataset { public DataSet GetAllData(string sp) { return LoadSQL(sp); } private DataSet LoadSQL(string sp) { SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"].ToString()); SqlCommand cmd = new SqlCommand(sp, con); DataSet ds; try { con.Open(); cmd.CommandType = CommandType.StoredProcedure; SqlDataReader dr = cmd.ExecuteReader(); DataTable dt = new DataTable(); dt.Load(dr); ds = new DataSet(); ds.Tables.Add(dt); return ds; } finally { con.Dispose(); cmd.Dispose(); } } }

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  • query in sql server for retrieving rows

    - by Arash khangaldi
    I have a table that contains the following 4 columns: id name lastname phone I want to write a stored procedure that gets an id as parameter, and then gets the name of that id and then use that name to get all the rows that their name is equal to the names that i found in last step! here it is my query, i know it's wrong but i'm new to sql commands: ALTER PROCEDURE dbo.GetAllNames @id int AS select name as Name from Users where id = @id -- i don't how to retrieve the names that are equal to Name select * from Users where name = Name can you correct my query and help me? Thanks.

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  • Manually Writing the HTML in TWebBrowser

    - by nomad311
    I am using the strategy suggested here: http://cc.embarcadero.com/Item/23992 to get my HTML in the TWebBrowser, but I get a bunch of JavaScript errors when the page loads. If I click yes enough times I can see a page with no formatting and I'm guessing the page does nothing. My theory is that because the links in the HTML are relative, the browser can't load any of it. I have switch from passing the URL, 'about:blank' to the navigate function, to passing the servers home page - in the hopes that some internal mechanism will be able to generate full paths, but no luck. Any one successfully been able to manually write HTML to the TWebBrowser.

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  • Marshal managed string[] to unmanaged char**

    - by Vince
    This is my c++ struct (Use Multi-Byte Character Set) typedef struct hookCONFIG { int threadId; HWND destination; const char** gameApps; const char** profilePaths; } HOOKCONFIG; And .Net struct [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct HOOKCONFIG { public int threadId; public IntPtr destination; // MarshalAs? public string[] gameApps; // MarshalAs? public string[] profilePaths; } I got some problem that how do I marshal the string array? When I access the struct variable "profilePaths" in C++ I got an error like this: An unhandled exception of type 'System.AccessViolationException' occurred in App.exe Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. MessageBox(0, cfg.profilePaths[0], "Title", MB_OK); // error ... Orz

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  • Does margin-left:2px; render faster than margin:0 0 0 2px;?

    - by Christopher Altman
    Douglas Crockford describes the consequence of Javascript inquiring a node's style. How simply asking for the margin of a div causes the browser to 'reflow' the div in the browser's rendering engine four times. So that made me wonder, during the initial rendering of a page (or in Crockford's jargon a "web scroll") is it faster to write CSS that defines only the non-zero/non-default values? To provide an example: div{ margin-left:2px; } Than div{ margin:0 0 0 2px; } I know consequence of this 'savings' is insignificant, but I think it is still important to understand how the technologies are implemented. Also, this is not a question about formatting CSS--this is a question about the implementations of browsers rendering CSS. Reference: http://developer.yahoo.com/yui/theater/video.php?v=crockonjs-4

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  • Monotouch/C# version of "stringWithContentsOfUrl"

    - by Pselus
    I'm trying to convert a piece of Objective-C code into C# for use with Monotouch and I have no idea what to use to replace stringWithContentsOfUrl Should I use something like: HttpWebRequest request = (HttpWebRequest) WebRequest.Create("http://www.helephant.com"); HttpWebResponse response = (HttpWebResponse) request.GetResponse(); if (response.StatusCode == HttpStatusCode.OK && response.ContentLength > 0){ TextReader reader = new StreamReader(response.GetResponseStream()); string text = reader.ReadToEnd(); Console.Write(text); } Is that even safe to use in MonoTouch? Will it work for the iPhone?

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  • Search SQL Question Between Related Two Tables

    - by mTuran
    Hi, I am writing some kind of search engine for my web application and i have a problem. I have 2 tables first of is projects table: PROJECTS TABLE id int(11) NO PRI NULL auto_increment employer_id int(11) NO MUL NULL project_title varchar(100) NO MUL NULL project_description text NO NULL project_budget int(11) NO NULL project_allowedtime int(11) NO NULL project_deadline datetime NO NULL total_bids int(11) NO NULL average_bid int(11) NO NULL created datetime NO MUL NULL active tinyint(1) NO MUL NULL PROJECTS_SKILLS TABLE project_id int(11) NO MUL NULL skill_id int(11) NO MUL NULL For example: I want ask this query to database: 1-) Skills are 5 and 7. 2-) Order results by created 3-) project title contains "php" word. 4-) Returned rows should contain projects.* columuns. 5-) Projects should be distinct(i don't want same projects in return of query). Please write sql query that ensure these conditions. Thank You.

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  • IEnumerable<T> representing the "rest" of an IEnumerable<T> sequence

    - by Henry Jackson
    If I am walking through an IEnumerable<T>, is there any way to get a new IEnumerable<T> representing the remaining items after the current one. For example, I would like to write an extension method IEnumerator<T>.Remaining(): IEnumerable<int> sequence = ... IEnumerator<int> enumerator = sequence.GetEnumerator(); if (enumerator.MoveNext() && enumerator.MoveNext()) { IEnumerable<int> rest = enumerator.Remaining(); // 'rest' would contain elements in 'sequence' start at the 3rd element } I'm thinking of the collection of a sort of singly-linked list, so there should be a way to represent any remaining elements, right? I don't see any way to do this exposed on either IEnumerable<T> or IEnumerator<T>, so maybe it's incompatible with the notion of a potentially unbounded, nondeterministic sequence of elements.

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  • Running NUnit Tests from Code

    - by Dror Helper
    I'm trying to write a simple method that receives a file an runs it using NUnit. The code I managed to build using NUnit's source does not work: if(openFileDialog1.ShowDialog() != DialogResult.OK) { return; } var builder = new TestSuiteBuilder(); var testPackage = new TestPackage(openFileDialog1.FileName); var directoryName = Path.GetDirectoryName(openFileDialog1.FileName); testPackage.BasePath = directoryName; var suite = builder.Build(testPackage); TestResult result = suite.Run(new NullListener(), TestFilter.Empty); The problem is that I keep getting an exception thrown by builder.Build stating that the assembly was not found. What am I missing?

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  • taking intersection of N-many lists in python

    - by user248237
    what's the easiest way to take the intersection of N-many lists in python? if I have two lists a and b, I know I can do: a = set(a) b = set(b) intersect = a.intersection(b) but I want to do something like a & b & c & d & ... for an arbitrary set of lists (ideally without converting to a set first, but if that's the easiest / most efficient way, I can deal with that.) I.e. I want to write a function intersect(*args) that will do it for arbitrarily many sets efficiently. What's the easiest way to do that? EDIT: My own solution is reduce(set.intersection, [a,b,c]) -- is that good? thanks.

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  • Finding the average of two number using classes and methods

    - by Have alook
    I want to use methods inside class. Q: find the average of two number using classes and methods. import java.util.*; class aaa { int a,b,sum,avrg; void average() { System.out.println("The average is ="+avrg); avrg=(sum/2); } } class ave { public static void main(String args[]){ aaa n=new aaa(); Scanner m=new Scanner(System.in); System.out.println("write two number"); n.a=m.nextInt(); n.b=m.nextInt(); n.average(); } }

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  • calculated column or stored procedure or just php function needed ?

    - by mcgrailm
    I have an order table in MySQL database, having a field/column which stores the date timestamp of when the order was placed. I need to calculate when the order must be shipped. I could probably figure out how to write a function to calculate the ship date and call that when ever needed but I think, not sure it may make more sense to have the shipdate as a calculated column. That being said, I have never used a stored procedure or created a calculated field. The later I think would be best but again not sure. I used to make calculated field all the time in FMP but I've gotten away from that program.

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  • How to calculate the correct image size in out pdf using itextsharp ?

    - by MK
    I' am trying to add an image to a pdf using itextsharp, regardless of the image size it always appears to be mapped to a different greater size inside the pdf ? The image I add is 624x500 pixel (DPI:72): And here is a screen of the output pdf: And here is how I created the document: Document document = new Document(); System.IO.MemoryStream stream = new MemoryStream(); PdfWriter writer = PdfWriter.GetInstance(document, stream); document.Open(); System.Drawing.Image pngImage = System.Drawing.Image.FromFile("test.png"); Image pdfImage = Image.GetInstance(pngImage, System.Drawing.Imaging.ImageFormat.Png); document.Add(pdfImage); document.Close(); byte[] buffer = stream.GetBuffer(); FileStream fs = new FileStream("test.pdf", FileMode.Create); fs.Write(buffer, 0, buffer.Length); fs.Close(); Any idea why on how to calculate the correct size ?

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  • Making a window pop in and out of the edge of the screen

    - by Brad
    I'm trying to re-write an application I have for Windows in Objective-C for my Mac, and I want to be able to do something like Mac's hot corners. If I move my mouse to the left side of the screen it will make a window visible, if I move it outside of the window location the window will hide again. (window would be pushed up to the left side of screen). Does anyone know where I can find some demo code (or reference) on how to do this, or at least how to tell where the mouse is at, even if the current application is not on top. (not sure how to word this, too used to Windows world). Thank you -Brad

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  • Inverse Factorial Function (Prolog)

    - by user2796815
    I have to write a Prolog program to computer the inverse of factorial function without using division. I was also given the note: "the inverse of a function is not necessarily a function". I have this is a normal factorial predicate.. fact(0,1). fact(N,F) :- N0, N1 is N-1, fact(N1,F1), F is N * F1. I've read on some other posts that you should be able to just switch around the arguments, but that doesn't seem to be the case with this version. Could anyone help me out with figuring out why?

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  • Hash Digest / Array Comparison in C#

    - by Erik Karulf
    Hi All, I'm writing an application that needs to verify HMAC-SHA256 checksums. The code I currently have looks something like this: static bool VerifyIntegrity(string secret, string checksum, string data) { // Verify HMAC-SHA256 Checksum byte[] key = System.Text.Encoding.UTF8.GetBytes(secret); byte[] value = System.Text.Encoding.UTF8.GetBytes(data); byte[] checksum_bytes = System.Text.Encoding.UTF8.GetBytes(checksum); using (var hmac = new HMACSHA256(key)) { byte[] expected_bytes = hmac.ComputeHash(value); return checksum_bytes.SequenceEqual(expected_bytes); } } I know that this is susceptible to timing attacks. Is there a message digest comparison function in the standard library? I realize I could write my own time hardened comparison method, but I have to believe that this is already implemented elsewhere.

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  • Git pull error: unable to create temporary sha1 filename

    - by gnus.es
    Hi everyone, I've got a small git repo setup with the only real purpose to be able to develop locally on several machines (work, home, laptop). Thus I have one branch and I commit/push once I leave a computer, pull once I sit down at the next. Has worked fine, up to now that is. Now when I pull on my 'live test' machine, I get the following: remote: Counting objects: 38, done. remote: Compressiremote: ng objects: 100% (20/20), done. remote: Total 20 (delta 17), reused 0 (delta 0) error: unable to create temporary sha1 filename .git/objects/ed: File exists fatal: failed to write object fatal: unpack-objects failed Searching around the net the only real answer I could find was the following: http://marc.info/?l=git&m=122720741928774&w=2 which basically states that this is a bogus error that's on top of the pile and thus says nothing about what really is wrong. Where do I go from here to find out what is wrong? Edit: Removed the local copy and re-cloned

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  • Git tool to remove lines from staging if they consist only of changes in whitespace

    - by Max Howell
    The point in removing trailing whitespace is that if everyone does it always then you end up with a diff that is minimal, ie. it consists only of code changes and not whitespace changes. However when working with other people who do not practice this, removing all trailing whitespace with your editor or a pre-commit hook results in an even worse diff. You are doing the opposite of your intention. So I am asking here if there is a tool that I can run manually before I commit that unstages lines from staging that are only changes in whitespace. Also a bonus would be to change the staged line to have trailing whitespace removed for lines that have code changes. Also a bonus would be to not do this to Markdown files (as trailing space has meaning in Markdown). I am asking here as I fully intend to write this tool if it doesn't already exist.

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  • How do I select differing rows in two MySQL tables with the same structure?

    - by chiborg
    I have two tables, A and B, that have the same structure (about 30+ fields). Is there a short, elegant way to join these tables and only select rows where one or more columns differ? I could certainly write some script that creates the query with all the column names but maybe there is an SQL-only solution. To put it another way: Is there a short substitute to this: SELECT * FROM table_a a JOIN table_b b ON a.pkey=b.pkey WHERE a.col1 != b.col2 OR a.col2 != b.col2 OR a.col3 != b.col3 # .. repeat for 30 columns

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  • Ways to improve Java Generics and dont say get rid of wildcards and reification.

    - by mP
    Sometimes i like to write up template classes and use type parameters to make the abstract methods more type safe. Template<X> { abstract void doStuff( X ); // NOT public } While type safety is great etc, the problem remains that even though X is not visible to outside code, one must still include the type to avoid warnings. My solution in this case would be to make it possible to define a scope for type parameters (now they are always public). Would other original features besides the obvious would you like.

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  • Parsing mutiple xml files in android

    - by cppdev
    Hi, I ma writing an application where I have to parse multiple xml files as a response from a server. Till now, I have written different xml parser classes for each xml depepending on the tags present in different xmls ? Can I combine all xml parser classes and write a single xml parser that handles all different tags in different xmls ? Will it work ? Will combining xml parser classes add an overhead because xml parser will check for every tag irrespective of whether that is part of file or not ? Please help.

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  • Excel 2003 - How to build my own XLA?

    - by Justin
    How can you make the .xla file if you want to create your own xla? I have the code, classes, shapes, etc....what is the process to making an xla file to point to? I know that I have to put it in my program files folder, and then go through the steps to adding an "add-in" in xls...but i mean actually saving an xla file to point to.... can i simply write all this in xls and then save it as file type xla?? because i have tried to do that but I get an error that it is not a valid add in when I am in a spreadsheet trying to point to it? thanks!

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  • Create a New .Net Profiler Api

    - by daniel
    Hi everybody! i m a new programmer in .Net Profiler and Visual C++, i read many forums and weblogs for .Net Profiling and i have this question. my Profiler application must be a unmanaged code or i can use some class in .Net in my application? and what type of project i must create ATL with MFC Or ..? another question is how can i register my profiler dll file that every application of my computer use this profiler? where the best situation for re-write IL of a method (Enter method of profiler or JITCompilationStarted)? how can i get input variables of old method and send to new method? how can i change IL of a property or whole of a class? i want chane all datetime format of my dlls, and i think that i must search name of those method in JITCompilationStarted and then rewrite that methods,Do u have any better solution? thanks alot.

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  • How to append text into text file dynamically

    - by niraj deshmukh
    [12] key1=val1 key2=val2 key3=val3 key4=val4 key5=val5 [13] key1=val1 key2=val2 key3=val3 key4=val4 key5=xyz [14] key1=val1 key2=val2 key3=val3 key4=val4 key5=val5 I want to update key5=val5 where [13]. try { br = new BufferedReader(new FileReader(oldFileName)); bw = new BufferedWriter(new FileWriter(tmpFileName)); String line; while ((line = br.readLine()) != null) { System.out.println(line); if (line.contains("[13]")) { while (line.contains("key5")) { if (line.contains("key5")) { line = line.replace("key5", "key5= Val5"); bw.write(line+"\n"); } } } } } catch (Exception e) { return; } finally { try { if(br != null) br.close(); } catch (IOException e) { // } try { if(bw != null) bw.close(); } catch (IOException e) { // } }

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  • MySql products and categories tables using php and json

    - by Romina Mora
    I have just started learning all this coding language and the teacher is asking us to do the following. I know it may sound really easy for people who do this full time or have more time coding. The teacher is always telling us to GOOGLE everything and I have tried too many sites but I haven't found anything that helps me at all. I need to write two JSON documents (products and categories) using PHP that will dynamically read values from my MySQL database. When each document is called upon, it will return perfectly formatted JSON that will validate using http://jsonlint.com/ Honestly I don't know what to do. I don't understand PHP and now this JSON thing is making it more confusing.

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