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  • Understanding asp.net mvc IView and IView.Render

    - by Harpreet
    I'm trying to devise a method of doing VERY simple asp.net mvc plugins but mostly I'm trying to understand how view rendering works. I've distilled my problem down to this public class CustomView : IView { public void Render(ViewContext viewContext, TextWriter writer) { writer.Write( /* string to render */); } } Now, within that write method I can render any string to the view but when I put a line of code in there wrapped with <% % it renders the code to the view literally rather than parsing it and executing it. I've tried adding things like <% @Page ... to the beginning of the string and it just renders that literally as well. Among many attempts I'm currently calling it this way within a controller action: ... CustomView customView = new CustomView(); ViewResult result = new ViewResult(); result.View = customView; result.ViewName = "Index.aspx"; result.MasterName = ""; return result; What am I missing or doing wrong that this won't work? The ViewResult seems to have the WebFormViewEngine in its ViewEngines collection. I just want to understand this and after stripping it down to what I think should be the minimum it doesn't behave as I think it should. I'm guessing some other part of the machinery is involved/missing but I can't figure out what.

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  • jquery ajax call from link loaded with ajax

    - by Jay
    //deep linking $("document").ready(function(){ contM = $('#main-content'); contS = $('#second-content'); $(contM).hide(); $(contM).addClass('hidden'); $(contS).hide(); $(contS).addClass('hidden'); function loadURL(URL) { //console.log("loadURL: " + URL); $.ajax({ url: URL, type: "POST", dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contM).html(data); $(contM).animW(); } }); } // Event handlers $.address.init(function(event) { //console.log("init: " + $('[rel=address:' + event.value + ']').attr('href')); }).change(function(event) { $.ajax({ url: $('[rel=address:' + event.value + ']').attr('href'), type: "POST", dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contM).html(data); $(contM).animW(); }}); //console.log("change"); }) $('.update-main a').live('click', function(){ loadURL($(this).attr('href')); }); $(".update-second a").live('click', function() { var link = $(this); $.ajax({ url: link.attr("href"), dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contS).html(data); $(contS).animW(); }}); }); }); I'm using jquery and the 'addresses' plugin to load content with ajax and maintain pagination. The problem I'm having is some content loads with links which are intended to load content into a secondary window. I'm using the .live() method to allow jquery to listen for new links loaded into the primary content div. This works until the .ajax() method is called for these fresh links loaded with ajax, where the method begins, but follows the original link before data can be received. I'm assuming the problem is in the client-side scripting, but it may be a problem with the call made to the server. I'm using the wordpress loop to parse the url and generate the html loaded via jquery. Thanks for any tips!

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  • Trouble converting an MP3 file to a WAV file using Naudio

    - by WebDevHobo
    Naudio Library: http://naudio.codeplex.com/ I'm trying to convert an MP3 file to a WAV file, but I've run in to a small error. I know what's going wrong, but I don't really know how to go about fixing it. Here's the piece of code I'm running: private void button1_Click(object sender, EventArgs e) { using(Mp3FileReader reader = new Mp3FileReader(@"path\to\MP3")) { using(WaveFileWriter writer = new WaveFileWriter(@"C:\test.wav", new WaveFormat())) { int counter = 0; while(reader.Read(test, counter, test.Length + counter) != 0) { writer.WriteData(test, counter, test.Length + counter); counter += 512; } } } } reader.Read() goes into the Mp3FileReader class, and the method looks like this: public override int Read(byte[] sampleBuffer, int offset, int numBytes) { if (numBytes % waveFormat.BlockAlign != 0) //throw new ApplicationException("Must read complete blocks"); numBytes -= (numBytes % waveFormat.BlockAlign); return mp3Stream.Read(sampleBuffer, offset, numBytes); } mp3Stream is an object of the Stream class. The problem is: I'm getting an ArgumentException. MSDN says that this is because the sum of offset and numBytes is greater than the length of sampleBuffer. Documentation: http://msdn.microsoft.com/en-us/library/system.io.stream.read.aspx This happens because I increase the counter every time, but the size of the byte array test remains the same. What I've been wondering is: do I need to increase the size of the array dynamically, or do I need to find out the needed size at the beginning and set it right away? And also, instead of 512, the method in Mp3FileReader returns 365 the first time. Which is the size of a whole block. But I'm writing the full 512. I'm basically just using the read to check if I'm not at the end of the file yet. Do I need to catch the return value and do something with that, or am I good here?

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  • Reading a POP3 server with only TcpClient and StreamWriter/StreamReader

    - by WebDevHobo
    I'm trying to read mails from my live.com account, via the POP3 protocol. I've found the the server is pop3.live.com and the port if 587. I'm not planning on using a pre-made library, I'm using NetworkStream and StreamReader/StreamWriter for the job. I need to figure this out. So, any of the answers given here: http://stackoverflow.com/questions/44383/reading-email-using-pop3-in-c are not usefull. It's part of a larger program, but I made a small test to see if it works. Eitherway, i'm not getting anything. Here's the code I'm using, which I think should be correct. public Program() { string temp = ""; using(TcpClient tc = new TcpClient(new IPEndPoint(IPAddress.Parse("127.0.0.1"),8000))) { tc.Connect("pop3.live.com",587); using(NetworkStream nws = tc.GetStream()) { using(StreamReader sr = new StreamReader(nws)) { using(StreamWriter sw = new StreamWriter(nws)) { sw.WriteLine("USER " + user); sw.Flush(); sw.WriteLine("PASS " + pass); sw.Flush(); sw.WriteLine("LIST"); sw.Flush(); while(temp != ".") { temp += sr.ReadLine(); } } } } } Console.WriteLine(temp); } So, I'm sending from port 8000 on my machine to port 587, the hotmail pop3 port. And I'm getting nothing, and I'm out of ideas.

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  • Problem with XElement and XslCompiledTransform

    - by Graham Clark
    I'm having some trouble using a combination of XElement and XslCompiledTransform. I've put the sample code I'm using below. If I get my input XML using the GetXmlDocumentXml() method, it works fine. If I use the GetXElementXml() method instead, I get an InvalidOperationException when calling the Transform method of XslComiledTransform: Token Text in state Start would result in an invalid XML document. Make sure that the ConformanceLevel setting is set to ConformanceLevel.Fragment or ConformanceLevel.Auto if you want to write an XML fragment. The CreateNavigator method on both XElement and XmlDocument returns an XPathNavigator. What extra stuff is XmlDocument doing so this all works, and how can I do the same with XElement? Am I just doing something insane? static void Main(string[] args) { XslCompiledTransform stylesheet = GetStylesheet(); // not shown for brevity IXPathNavigable input = this.GetXElementXml(); using (MemoryStream ms = this.TransformXml(input, stylesheet)) { XmlReader xr = XmlReader.Create(ms); xr.MoveToContent(); } } private MemoryStream TransformXml( IXPathNavigable xml, XslCompiledTransform stylesheet) { MemoryStream transformed = new MemoryStream(); XmlWriter writer = XmlWriter.Create(transformed); stylesheet.Transform(xml, null, writer); transformed.Position = 0; return transformed; } private IXPathNavigable GetXElementXml() { var xml = new XElement("x", new XElement("y", "sds")); return xml.CreateNavigator(); } private IXPathNavigable GetXmlDocumentXml() { var xml = new XmlDocument(); xml.LoadXml("<x><y>sds</y></x>"); return xml.CreateNavigator(); }

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  • Creating files with french characters and encoding.

    - by Kevin
    HI, I am creating a file like so. FileStream temp = File.Create( this.FileName ); Then putting data in the file like so. this.Writer = new StreamWriter( this.Stream ); this.Writer.WriteLine( strMessage ); That code is encapsulated in a class hierarchy but that is the meat and potatoes of it. My problem is this. MSDN says that the default encoding for creating a file this way is UTF8. And when I write a french character such as é Textpad interprets the file as a UTF 8 file, but notepad++ says it's "ANSI as UTF8" or maybe it's an ansi file but is reading it as UTF8. When I create a file the same way without the french character both textpad and notepad++ read the file as an ansi file even though according to msdn it should be a utf 8 file still. Which program should be trusted. Notepad++ or textpad - Notepad++ seems to be more consistant, but is still the oppossite to what MSDN says it should be. My problem is that we create files that get sent off to another company and depending on whether there are french characters the encoding seems to keep changing. Or is there a better way to determine the encoding of a file. I've read about byte order marks and preambles but as far as I understand neither are guaranteed to be there. We initially thought that all the files we were building were ansi. Also please note that both ansi and utf8 should handle the french characters appropriately as the characters are part of both character sets.

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  • Browser Based Streaming Video/Audio (not progressive download)

    - by Josh
    Hello, I am trying to understand conceptually the best way to deliver real streaming audio and video content. I would want it to be consumed with a web browser, utilizing the least amount of proprietary technology. I wouldn't be serving static files and using progressive download, this would be real audio streams being captured live. How does one broadcast a stream that will be reasonably in sync with the source? What kind of protocol is suitable? Edit: In research I've found that there are a few protocols: RTSP, HTTP Streaming, RTMP, and RTP. HTTP streaming is somewhat unsuitable if you are streaming a live performance/communication of some kind because it relies on TCP (as its HTTP based) and you don't lose packets. In a low bandwidth situation, the client can get significantly behind in playback. ref RTMP is a proprietary technology, requiring flash media server. Crap on that. The reason I looked at flash is because they are extremely flexible as far as user experience goes. SoundManager2 provides an excellent javascript interface for playing media with flash. This is what I would look for in a client application. RTSP/RTP is what Microsoft switched to using, deprecating their MMS protocol. RTSP is the control protocol. Its similar to HTTP with a few distinct difference -- server can also talk to the client, and there are additional commands, like PAUSE. Its also a stateful protocol, which is maintained with a session id. RTP is the protocol for delivering the payload (encoded audio or video). There are a few open sourced projects, one of them being supported by apple here. It seems like this might do what I want it to, and it looks like quite a few players support it. It sounds like it would be suitable for a "live" broadcast from this page here. Thanks, Josh

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  • Oracle rownum in db2 - Java data archiving

    - by HonorGod
    I have a data archiving process in java that moves data between db2 and sybase. FYI - This is not done through any import/export process because there are several conditions on each table that are available on run-time and so this process is developed in java. Right now I have single DatabaseReader and DatabaseWriter defined for each source and destination combination so that data is moved in multiple threads. I guess I wanted to expand this further where I can have Multiple DatabaseReaders and Multiple DatabaseWriters defined for each source and destination combination. So, for example if the source data is about 100 rows and I defined 10 readers and 10 writer, each reader will read 10 rows and give them to the writer. I hope process will give me extreme performance depending on the resources available on the server [CPU, Memory etc]. But I guess the problem is these source tables do not have primary keys and it is extremely difficult to grab rows in multiple sets. Oracle provides rownum concept and i guess the life is much simpler there....but how about db2? How can I achieve this behavior with db2? Is there a way to say fetch first 10 records and then fetch next 10 records and so on? Any suggestions / ideas ? Db2 Version - DB2 v8.1.0.144 Fix Pack Num - 16 Linux

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  • what's the correct way to release a new website?

    - by kk
    so i've been working on a website on and off for about a year now, and i'm finally at a point where it's functional enough to test out in a sort of private beta (not ready for live release). but i never thought about the correct process for doing this and what things i need to take care of. i've never released a public website before. some of the questions/concerns i have in mind: 1) is it against my MSDN license agreement to release a website using the software? 2) how do i protect my "idea"? is it a bad idea to find random people you don't know to test out your site? can you make them digitally sign some sort of NDA? 3) i'm using some open source code - any proper way to release open source code to live production? 4) how much traffic can a place like discountasp.net handle anyway? can hosting sites generally handle large volume of traffic? any comments/suggestions regarding the proper/safe way to release a public website would be appreciated. i've been working on this for a while and never actually sat down to think about the right way to move from a personal side project to a live production website.

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  • How to log in to a vbulletin forum with C#?

    - by Yustme
    Hi, I'm trying to log into a vbulletin forum. I got this far: private string login(string url, string username, string password) { string values = "vb_login_username={0}&vb_login_password={1}" values += "&securitytoken=guest&cookieuser=checked&do=login"; values = string.Format(values, username, password); HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); CookieContainer a = new CookieContainer(); req.CookieContainer = a; System.Net.ServicePointManager.Expect100Continue = false; // prevents 417 error using (StreamWriter writer = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII)) { writer.Write(values); } this.response = (HttpWebResponse)req.GetResponse(); StringBuilder output = new StringBuilder(); foreach (var cookie in response.Cookies) { output.Append(cookie.ToString()); output.Append(";"); } return output.ToString(); } It looks like i am getting logged in, but when i download the page, i can't find my username in it. Do you guys see anything that i might be doing wrong? Thanks in advance!

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  • What is the Best way to databind an ASP.NET TreeView for table with many to many parent child relati

    - by Matt W
    I've got a table which has the usual ParentID, ChildID as it's first two columns in a self-referencing tree data structure. My issue is that when I pull this out and use the following code: DataSet set = DA.GetNewCategories(); set.Relations.Add( new DataRelation("parentChildCategories", set.Tables[0].Columns["CategoryParentID"], set.Tables[0].Columns["CategoryID"]) ); StringBuilder buildXml = new StringBuilder(); StringWriter writer = new StringWriter(buildXml); set.WriteXml(writer); TreeView2.DataSource = new HierarchicalDataSet(set, "CategoryID", "CategoryParentID"); TreeView2.DataBind(); I get the error: These columns don't currently have unique values I believe this is because my data has children with multiple parent nodes. This is fine for my application - I don't mind if one row of data is rendered in multiple nodes of my TreeView. Could someone shed light on this please? It doesn't seem unreasonable to have a DataSet render XML which has nodes appearing in multiple places, but I can't figure out how to do it. Thanks, Matt.

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  • video streaming infrastructure

    - by alchemical
    We would like to set-up a live video-chat web site and are looking for basic architectural advice and/or a recomendation for a particular framework to use. Here are the basic features of the site: Most streams will be broadcast live from a single person with a web cam, etc., and viewed by typically 1-10 people, although there could be up to 100+ viewers on the high side. Audio and video do not have to be super-high quality, but do need to be "good enough". The main point is to convey the basic info in the video (and audio). If occasionally the frame-rate drops low and then goes back to normal fairly soon, we could live with that. Budget is an issue, so we are in general looking for a lower cost solution that will give us most of what we need in temers of performance and quality. We are looking at Peer1 for co-lo. The rest of our web site will be .Net / Windows platform. We are open to looking at any platform for the best streaming solution, although our technical expertise is currently more on the Windows side.

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  • Memory leak of java.lang.ref.WeakReference objects inside JDK classes

    - by mandye
    The following simple code reproduces the growth of java.lang.ref.WeakReference objects in the heap: public static void main(String[] args) throws Exception { while (true) { java.util.logging.Logger.getAnonymousLogger(); Thread.sleep(1); } } Here is the output of jmap command within a few seconds interval: user@t1007:~ jmap -d64 -histo:live 29201|grep WeakReference 8: 22493 1079664 java.lang.ref.WeakReference 31: 1 32144 [Ljava.lang.ref.WeakReference; 106: 17 952 com.sun.jmx.mbeanserver.WeakIdentityHashMap$IdentityWeakReference user@t1007:~ jmap -d64 -histo:live 29201|grep WeakReference 8: 23191 1113168 java.lang.ref.WeakReference 31: 1 32144 [Ljava.lang.ref.WeakReference; 103: 17 952 com.sun.jmx.mbeanserver.WeakIdentityHashMap$IdentityWeakReference user@t1007:~ jmap -d64 -histo:live 29201|grep WeakReference 8: 23804 1142592 java.lang.ref.WeakReference 31: 1 32144 [Ljava.lang.ref.WeakReference; 103: 17 952 com.sun.jmx.mbeanserver.WeakIdentityHashMap$IdentityWeakReference Note that jmap command forces FullGC. JVM settings: export JVM_OPT="\ -d64 \ -Xms200m -Xmx200m \ -XX:MaxNewSize=64m \ -XX:NewSize=64m \ -XX:+UseParNewGC \ -XX:+UseConcMarkSweepGC \ -XX:MaxTenuringThreshold=10 \ -XX:SurvivorRatio=2 \ -XX:CMSInitiatingOccupancyFraction=60 \ -XX:+UseCMSInitiatingOccupancyOnly \ -XX:+CMSParallelRemarkEnabled \ -XX:+DisableExplicitGC \ -XX:+CMSClassUnloadingEnabled \ -XX:+PrintGCTimeStamps \ -XX:+PrintGCDetails \ -XX:+PrintTenuringDistribution \ -XX:+PrintGCApplicationConcurrentTime \ -XX:+PrintGCApplicationStoppedTime \ -XX:+PrintGCApplicationStoppedTime \ -XX:+PrintClassHistogram \ -XX:+ParallelRefProcEnabled \ -XX:SoftRefLRUPolicyMSPerMB=1 \ -verbose:gc \ -Xloggc:$GCLOGFILE" java version "1.6.0_18" Java(TM) SE Runtime Environment (build 1.6.0_18-b07) Java HotSpot(TM) Server VM (build 16.0-b13, mixed mode) Solaris 10/Sun Fire(TM) T1000

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  • Bypassing confirmation prompt of an external process

    - by Alidad
    How can I convert this Perl code to Groovy? How to bypass confirmation prompts of an external process? I am trying to convert a Perl script to Groovy. The program is loading/delete maestro (job scheduling) jobs automatically. The problem is the delete command will prompt for confirmation (Y/N) on every single job that it finds. I tried the process execute in groovy but will stop at the prompts. The Perl script is writing bunch of Ys to the stream and print it to the handler( if I understood it correctly) to avoid stopping. I am wondering how to do the same thing in Groovy ? Or any other approach to execute a command and somehow write Y on every confirmation prompt. Perl Script: $maestrostring=""; while ($x < 1500) { $maestrostring .= "y\n"; $x++; } # delete the jobs open(MAESTRO_CMD, "|ssh mserver /bin/composer delete job=pserver#APPA@") print MAESTRO_CMD $maestrostring; close(MAESTRO_CMD); This is my groovy code so far: def deleteMaestroJobs (){ ... def commandSched ="ssh $maestro_server /bin/composer delete sched=$primary_server#$app_acronym$app_level@" def commandJobs ="ssh $maestro_server /bin/composer delete job=$primary_server#$app_acronym$app_level@" try { executeCommand commandJobs } catch (Exception ex ){ throw new Exception("Error executing the Maestro Composer [DELETE]") } try { executeCommand commandSched } catch (Exception ex ){ throw new Exception("Error executing the Maestro Composer [DELETE]") } } def executeCommand(command){ def process = command.execute() process.withWriter { writer -> 1500.times {writer.println 'Y' } } process.consumeProcessOutput(System.out, System.err) process.waitFor() }

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  • Tips on managing dependencies for a release?

    - by Andrew Murray
    Our system comprises many .NET websites, class libraries, and a MSSQL database. We use SVN for source control and TeamCity to automatically build to a Test server. Our team is normally working on 4 or 5 projects at a time. We try to lump many changes into a largish rollout every 2-4 weeks. My problem is with keeping track of all the dependencies for a rollout. Example: Website A cannot go live until we've rolled out Branch X of Class library B, built in turn against the Trunk of Class library C, which needs Config Updates Y and Z and Database Update D, which needs Migration Script E... It gets even more complex - like making sure each developer's project is actually compatible with the others and are building against the same versions. Yes, this is a management issue as much as a technical issue. Currently our non-optimal solution is: a whiteboard listing features that haven't gone live yet relying on our memory and intuition when planning the rollout, until we're pretty sure we've thought of everything... a dry-run on our Staging environment. It's a good indication but we're often not sure if Staging is 100% in sync with Live - part of the problem I'm hoping to solve. some amount of winging it on rollout day. So far so good, minus a few close calls. But as our system grows, I'd like a more scientific release management system allowing for more flexibility, like being able to roll out a single change or bugfix on it's own, safe in the knowledge that it won't break anything else. I'm guessing the best solution involves some sort of version numbering system, and perhaps using a project management tool. We're a start-up, so we're not too hot on religiously sticking to rigid processes, but we're happy to start, providing it doesn't add more overhead than it's worth. I'd love to hear advice from other teams who have solved this problem.

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  • In iTextSharp, can we set the vertical position of the pdfwriter?

    - by Pandincus
    Hello, I've recently started using iTextSharp to generate PDF reports from data. It works quite nicely. In one particular report, I need a section to always appear at the bottom of the page. I'm using the PdfContentByte to create a dashed line 200f from the bottom: cb.MoveTo(0f, 200f); cb.SetLineDash(8, 4, 0); cb.LineTo(doc.PageSize.Width, 200f); cb.Stroke(); Now I'd like to insert content below that line. However, (as expected) the PdfContentByte methods don't change the vertical position of the PdfWriter. New paragraphs, for example, appear earlier in the page. // appears wherever my last content was, NOT below the dashed line doc.Add(new Paragraph("test", _myFont)); Is there some way to instruct the pdfwriter that I'd like to advance the vertical position to below the dashed line now, and continue inserting content there? There is a GetVerticalPosition() method -- it'd be nice if there was a corresponding Setter :-). // Gives me the vertical position, but I can't change it var pos = writer.GetVerticalPosition(false); So, is there any way to set the writer's position by hand? Thanks!

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  • FIFOs implementation

    - by nunos
    Consider the following code: writer.c mkfifo("/tmp/myfifo", 0660); int fd = open("/tmp/myfifo", O_WRONLY); char *foo, *bar; ... write(fd, foo, strlen(foo)*sizeof(char)); write(fd, bar, strlen(bar)*sizeof(char)); reader.c int fd = open("/tmp/myfifo", O_RDONLY); char buf[100]; read(fd, buf, ??); My question is: Since it's not know before hand how many bytes will foo and bar have, how can I know how many bytes to read from reader.c? Because if I, for example, read 10 bytes in reader and foo and bar are together less than 10 bytes, I will have them both in the same variable and that I do not want. Ideally I would have one read function for every variable, but again I don't know before hand how many bytes will the data have. I thought about adding another write instruction in writer.c between the write for foo and bar with a separator and then I would have no problem decoding it from reader.c. Is this the way to go about it? Thanks.

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  • Strange File Upload issue with asp.net site on a web farm

    - by Coov
    I have a basic asp.net file upload page. When I test file uploads from my local machine, it works fine. When I test file uploads from our dev machine, it works fine. When I deploy the site to our production webfarm, it behaves strangely. If I access the site from off the network, I can load file-after-file without issue. If I access the site from within our network, I can load the first file just fine but any subsequent files result it a bad sequence of commands error. I'm not sure if this is web farm issue, a network issue, or something else. It feels like a connection is not being disposed of properly but it doesn't make sense why everything works fine remotely. Markup: <asp:FileUpload ID="FileUpload1" runat="server" Width="350px" /> <asp:Button ID="btnSubmit" runat="server" Text="Upload" onclick="btnSubmit_Click" /> Code: if (FileUpload1.HasFile) { FtpWebRequest ftpRequest; FtpWebResponse ftpResponse; ftpRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://ftp.myftpsite.com/" + FileUpload1.FileName)); ftpRequest.Method = WebRequestMethods.Ftp.UploadFile; ftpRequest.Proxy = null; ftpRequest.UseBinary = true; ftpRequest.Credentials = new NetworkCredential("username", "password"); ftpRequest.KeepAlive = false; byte[] fileContents = new byte[FileUpload1.PostedFile.ContentLength]; using (Stream fr = FileUpload1.PostedFile.InputStream) { fr.Read(fileContents, 0, FileUpload1.PostedFile.ContentLength); } using (Stream writer = ftpRequest.GetRequestStream()) { writer.Write(fileContents, 0, fileContents.Length); } ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); Response.Write(ftpResponse.StatusDescription); }

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  • SharePoint extensions for VS - which version have I got?

    - by Javaman59
    I'm using Visual Studio 2008, and have downloaded VSeWSS.exe 1.2, to enable Web Part development. I am new to SP development, and am already bewildered by the number of different versions of SP, and the VS add-ons. This particular problem has come up, which highlights my confusion. I selected Add - New Project - Visual C# - SharePoint- Web Part, accepted the defaults, and VS created a project, with the main file WebPart1.cs using System; using System.Runtime.InteropServices; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Serialization; using Microsoft.SharePoint; using Microsoft.SharePoint.WebControls; using Microsoft.SharePoint.WebPartPages; namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { public WebPart1() { } protected override void CreateChildControls() // <-- This line { base.CreateChildControls(); // TODO: add custom rendering code here. // Label label = new Label(); // label.Text = "Hello World"; // this.Controls.Add(label); } } } The book I'm following, Essential SharePoint 2007, by Jeff Webb, has the following for the default project - using System; <...as previously> namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { // ^ this is a new style (ASP.NET) web part! [author's comment] protected override void Render(HtmlTextWriter writer) // <-- This line { // This method draws the web part // TODO: add custom rendering code here. // Label label = new Label(); // writer.Write("Output HTML"); } } } The real reason for my concern is that in this chapter of the book the author frequently mentions the distinction between "old style" web parts, and "new style" web parts, as noted in his comment on the Render method. What's happened? Why has my default Web Part got a different signature to the authors?

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  • How do I get my code to read the spaces between longs?

    - by WahtsUpWorld
    I apologize for any inconvenience that may occur in answering my question, I'm fairly new to programming and I'm so far only in the last weeks of my community college Java I class. The problem I am facing is in my code of which I cannot seem to get the PrintWriter to address the spaces in between my longs' phone number and social security I.D. The entire code consists of two classes in which one pulls from the other the information needed to parse and present the file writer/print writer. Here is the entire code w/ the second class after it: public class FinalProjectGroup1 { public static void main(String[] args) { } public String name; public long ssid; public double pay; public String address; public long number; public void cleanUpConstructor() {} public FinalProjectGroup1(String name, String address, double pay, long ssid, long number){ this.name = name; this.pay = pay; this.ssid = ssid; this.address = address; this.number = number; cleanUpConstructor(); } public void setName(String name) { this.name = name; } public String getName() { return name; } public void setPay(double pay) { this.pay = pay; } public double getPay() { return pay; } public void setSSID(long ssid) { this.ssid = ssid; } public long getSSID() { return ssid; } public void setAddress(String address) { this.address = address; } public String getAddress() { return address; } public void setNumber(long number) { this.number = number; } public long getNumber() { return number; } } SECOND CLASS import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JLabel; import java.awt.Font; import javax.swing.JFileChooser; import javax.swing.JButton; import javax.swing.JTextField; import FinalProjectGroup1; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.io.FileWriter; import java.io.PrintWriter; public class FinalProjectGroup1Window { public JFrame frmTheBosssSecretary; public JTextField txtName; public JTextField txtSSID; public JTextField txtAddress; public JTextField txtNumber; public JTextField txtPay; public JTextField txtFindName; public JTextField txtFindSSID; public JTextField txtFindPay; public JTextField txtFolder; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { FinalProjectGroup1Window window = new FinalProjectGroup1Window(); window.frmTheBosssSecretary.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } public FinalProjectGroup1Window() { initialize(); } private void initialize() { frmTheBosssSecretary = new JFrame(); frmTheBosssSecretary.setFont(new Font("Times New Roman", Font.PLAIN, 12)); frmTheBosssSecretary.setTitle("The Boss's Secretary: Employee Generator/Finder"); frmTheBosssSecretary.setBounds(100, 100, 547, 302); frmTheBosssSecretary.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frmTheBosssSecretary.getContentPane().setLayout(null); JLabel lblFile = new JLabel("Employee Folder:"); lblFile.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblFile.setBounds(10, 10, 93, 14); frmTheBosssSecretary.getContentPane().add(lblFile); JLabel lblFindEmployee = new JLabel("Employee Finder"); lblFindEmployee.setFont(new Font("Times New Roman", Font.BOLD, 18)); lblFindEmployee.setBounds(194, 159, 142, 20); frmTheBosssSecretary.getContentPane().add(lblFindEmployee); JLabel lblEmployeeName = new JLabel("Employee Name:"); lblEmployeeName.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblEmployeeName.setBounds(10, 35, 93, 14); frmTheBosssSecretary.getContentPane().add(lblEmployeeName); JLabel lblSSID = new JLabel("Employee SSID:"); lblSSID.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblSSID.setBounds(10, 135, 85, 14); frmTheBosssSecretary.getContentPane().add(lblSSID); JLabel lblAddress = new JLabel("Employee Address:"); lblAddress.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblAddress.setBounds(10, 60, 105, 14); frmTheBosssSecretary.getContentPane().add(lblAddress); JLabel lblPhoneNumber = new JLabel("Employee Phone Number:"); lblPhoneNumber.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblPhoneNumber.setBounds(10, 85, 134, 14); frmTheBosssSecretary.getContentPane().add(lblPhoneNumber); JLabel lblPayRate = new JLabel("Employee Pay Rate:"); lblPayRate.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblPayRate.setBounds(10, 110, 105, 14); frmTheBosssSecretary.getContentPane().add(lblPayRate); JLabel lblFindEmployeeName = new JLabel("Find Employee Name:"); lblFindEmployeeName.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblFindEmployeeName.setBounds(10, 183, 115, 14); frmTheBosssSecretary.getContentPane().add(lblFindEmployeeName); JLabel lblFindSSID = new JLabel("Find Employee SSID:"); lblFindSSID.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblFindSSID.setBounds(10, 208, 105, 14); frmTheBosssSecretary.getContentPane().add(lblFindSSID); JLabel lblFindPay = new JLabel("Find Employee Address:"); lblFindPay.setFont(new Font("Times New Roman", Font.PLAIN, 12)); lblFindPay.setBounds(10, 233, 124, 14); frmTheBosssSecretary.getContentPane().add(lblFindPay); txtFolder = new JTextField(); txtFolder.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtFolder.setBounds(105, 7, 314, 20); frmTheBosssSecretary.getContentPane().add(txtFolder); txtFolder.setColumns(10); txtName = new JTextField(); txtName.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtName.setBounds(99, 32, 247, 20); frmTheBosssSecretary.getContentPane().add(txtName); txtName.setColumns(10); txtAddress = new JTextField(); txtAddress.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtAddress.setBounds(109, 57, 237, 20); frmTheBosssSecretary.getContentPane().add(txtAddress); txtAddress.setColumns(10); txtNumber = new JTextField(); txtNumber.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtNumber.setBounds(141, 82, 160, 20); frmTheBosssSecretary.getContentPane().add(txtNumber); txtNumber.setColumns(10); txtPay = new JTextField(); txtPay.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtPay.setBounds(116, 107, 105, 20); frmTheBosssSecretary.getContentPane().add(txtPay); txtPay.setColumns(10); txtSSID = new JTextField(); txtSSID.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtSSID.setBounds(97, 132, 124, 20); frmTheBosssSecretary.getContentPane().add(txtSSID); txtSSID.setColumns(10); txtFindName = new JTextField(); txtFindName.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtFindName.setBounds(122, 180, 314, 20); frmTheBosssSecretary.getContentPane().add(txtFindName); txtFindName.setColumns(10); txtFindSSID = new JTextField(); txtFindSSID.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtFindSSID.setBounds(122, 205, 122, 20); frmTheBosssSecretary.getContentPane().add(txtFindSSID); txtFindSSID.setColumns(10); txtFindPay = new JTextField(); txtFindPay.setFont(new Font("Times New Roman", Font.PLAIN, 12)); txtFindPay.setBounds(141, 230, 237, 20); frmTheBosssSecretary.getContentPane().add(txtFindPay); txtFindPay.setColumns(10); JButton btnAddEmployee = new JButton("Add Employee"); btnAddEmployee.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { try { String name = txtName.getText(); String address = txtAddress.getText(); double pay = Double.parseDouble(txtPay.getText()); long ssid = Long.parseLong(txtSSID.getText()); long number = Long.parseLong(txtNumber.getText()); FinalProjectGroup1 ee = new FinalProjectGroup1(name, address, pay, ssid, number); FileWriter writer = new FileWriter(txtFolder.getText(), true); PrintWriter pw = new PrintWriter(writer); pw.println(ee.getName() + ", " + ee.getAddress() + ", " + ee.getNumber() + ", " + ee.getPay() + ", " + ee.getSSID()); pw.close(); } catch (Exception e) { return; } } }); JButton btnFolder = new JButton("Folder"); btnFolder.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { JFileChooser bsearch = new JFileChooser(); int result = bsearch.showOpenDialog(null); if (result != JFileChooser.APPROVE_OPTION) return; txtFolder.setText(bsearch.getSelectedFile().getAbsolutePath()); } }); btnFolder.setFont(new Font("Times New Roman", Font.PLAIN, 12)); btnFolder.setBounds(429, 6, 75, 23); frmTheBosssSecretary.getContentPane().add(btnFolder); btnAddEmployee.setFont(new Font("Times New Roman", Font.PLAIN, 12)); btnAddEmployee.setBounds(356, 42, 159, 107); frmTheBosssSecretary.getContentPane().add(btnAddEmployee); JButton btnFindName = new JButton("Find"); btnFindName.setFont(new Font("Times New Roman", Font.PLAIN, 12)); btnFindName.setBounds(446, 179, 69, 23); frmTheBosssSecretary.getContentPane().add(btnFindName); JButton btnFindSSID = new JButton("Find"); btnFindSSID.setFont(new Font("Times New Roman", Font.PLAIN, 12)); btnFindSSID.setBounds(250, 204, 85, 23); frmTheBosssSecretary.getContentPane().add(btnFindSSID); JButton btnFindAddress = new JButton("Find"); btnFindAddress.setFont(new Font("Times New Roman", Font.PLAIN, 12)); btnFindAddress.setBounds(389, 229, 85, 23); frmTheBosssSecretary.getContentPane().add(btnFindAddress); } } The problem here lies in the JButton Add Employee. Where, as previously mentioned, the long's phone number and social security I.D. don't show the spaces in the text file.

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  • Getting "" at the beginning of my XML File after save()

    - by Remy
    I'm opening an existing XML file with c# and I replace some nodes in there. All works fine. Just after I save it, I get the following characters at the beginning of the file:  (EF BB BF in HEX) The whole first line: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> The rest of the file looks like a normal XML file. The simplified code is here: XmlDocument doc = new XmlDocument(); doc.Load(xmlSourceFile); XmlNode translation = doc.SelectSingleNode("//trans-unit[@id='127']"); translation.InnerText = "testing"; doc.Save(xmlTranslatedFile); I'm using a C# WinForm Application. With .NET 4.0. Any ideas? Why would it do that? Can we disable that somehow? It's for Adobe InCopy and it does not open it like this. UPDATE: Alternative Solution: Saving it with the XmlTextWriter works too: XmlTextWriter writer = new XmlTextWriter(inCopyFilename, null); doc.Save(writer);

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  • Inverted colours in tiff to PDF conversion

    - by spiderdijon
    I'm sure I'm making some kind of silly mistake here, but when converting a tiff file to PDF, the colours become reversed. I can't figure out why. Here's my code: PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Image.pdf", FileMode.Create)); System.Drawing.Bitmap bm = new System.Drawing.Bitmap(@"C:\Temp\338814-00.tif"); int total = bm.GetFrameCount(FrameDimension.Page); document.Open(); PdfContentByte cb = writer.DirectContent; for (int k = 0; k < total; ++k) { bm.SelectActiveFrame(FrameDimension.Page, k); MemoryStream ms = new MemoryStream(); bm.Save(ms, ImageFormat.Tiff); Image img = Image.GetInstance(ms.ToArray()); img.ScalePercent(72f / (float)img.DpiX * 100); img.SetAbsolutePosition(0, 0); cb.AddImage(img); document.NewPage(); } document.Close(); Thanks.

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  • XmlSerialize a custom collection with an Attribute

    - by roomaroo
    I've got a simple class that inherits from Collection and adds a couple of properties. I need to serialize this class to XML, but the XMLSerializer ignores my additional properties. I assume this is because of the special treatment that XMLSerializer gives ICollection and IEnumerable objects. What's the best way around this? Here's some sample code: using System.Collections.ObjectModel; using System.IO; using System.Xml.Serialization; namespace SerialiseCollection { class Program { static void Main(string[] args) { var c = new MyCollection(); c.Add("Hello"); c.Add("Goodbye"); var serializer = new XmlSerializer(typeof(MyCollection)); using (var writer = new StreamWriter("test.xml")) serializer.Serialize(writer, c); } } [XmlRoot("MyCollection")] public class MyCollection : Collection<string> { [XmlAttribute()] public string MyAttribute { get; set; } public MyCollection() { this.MyAttribute = "SerializeThis"; } } } This outputs the following XML (note MyAttribute is missing in the MyCollection element): <?xml version="1.0" encoding="utf-8"?> <MyCollection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <string>Hello</string> <string>Goodbye</string> </MyCollection> What I want is <MyCollection MyAttribute="SerializeThis" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <string>Hello</string> <string>Goodbye</string> </MyCollection> Any ideas? The simpler the better. Thanks.

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  • pthread condition variables on Linux, odd behaviour.

    - by janesconference
    Hi. I'm synchronizing reader and writer processes on Linux. I have 0 or more process (the readers) that need to sleep until they are woken up, read a resource, go back to sleep and so on. Please note I don't know how many reader processes are up at any moment. I have one process (the writer) that writes on a resource, wakes up the readers and does its business until another resource is ready (in detail, I developed a no starve reader-writers solution, but that's not important). To implement the sleep / wake up mechanism I use a Posix condition value, pthread_cond_t. The clients call a pthread_cond_wait() on the variable to sleep, while the server does a pthread_cond_broadcast() to wake them all up. As the manual says, I surround these two calls with a lock/unlock of the associated pthread mutex. The condition variable and the mutex are initialized in the server and shared between processes through a shared memory area (because I'm not working with threads, but with separate processes) an I'm sure my kernel / syscall support it (because I checked _POSIX_THREAD_PROCESS_SHARED). What happens is that the first client process sleeps and wakes up perfectly. When I start the second process, it blocks on its pthread_cond_wait() and never wakes up, even if I'm sure (by the logs) that pthread_cond_broadcast() is called. If I kill the first process, and launch another one, it works perfectly. In other words, the condition variable pthread_cond_broadcast() seems to wake up only one process a time. If more than one process wait on the very same shared condition variable, only the first one manages to wake up correctly, while the others just seem to ignore the broadcast. Why this behaviour? If I send a pthread_cond_broadcast(), every waiting process should wake up, not just one (and, however, not always the same one).

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  • Is it possible to store pointers in shared memory without using offsets?

    - by Joseph Garvin
    When using shared memory, each process may mmap the shared region into a different area of their address space. This means that when storing pointers within the shared region, you need to store them as offsets of the start of the shared region. Unfortunately, this complicates use of atomic instructions (e.g. if you're trying to write a lock free algorithm). For example, say you have a bunch of reference counted nodes in shared memory, created by a single writer. The writer periodically atomically updates a pointer 'p' to point to a valid node with positive reference count. Readers want to atomically write to 'p' because it points to the beginning of a node (a struct) whose first element is a reference count. Since p always points to a valid node, incrementing the ref count is safe, and makes it safe to dereference 'p' and access other members. However, this all only works when everything is in the same address space. If the nodes and the 'p' pointer are stored in shared memory, then clients suffer a race condition: x = read p y = x + offset Increment refcount at y During step 2, p may change and x may no longer point to a valid node. The only workaround I can think of is somehow forcing all processes to agree on where to map the shared memory, so that real pointers rather than offsets can be stored in the mmap'd region. Is there any way to do that? I see MAP_FIXED in the mmap documentation, but I don't know how I could pick an address that would be safe.

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