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• partial entity loading and management in silverlight / wcf ria

  - by Dan Wray

  I have a Silverlight 4 app which pulls entities down from a database using WCF RIA services. These data objects are fairly simple, just a few fields but one of those fields contains binary data of an arbitrarily size. The application needs access to this data basically asap after a user has logged in, to display in a list, enable selection etc. My problem is because of the size of this data, the load times are not acceptable and can approach the default timeout of the RIA service. I'd like to somehow partially load the objects into my local data context so that I have the IDs, names etc but not the binary data. I could then at a later point (ie when it's actually needed) populate the binary fields of those objects I need to display. Any suggestions on how to accomplish this would be welcome. Another approach which has occurred to me whilst writing this question (how often does that happen?!) is that I could move the binary data into a seperate database table joined to the original record 1:1 which would allow me to make use of RIA's lazy loading on that binary data. again.. comments welcome! Thanks.

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• Spring - Transaction Readonly

  - by AAK

  Hello Gurus! Just wanted your expert opinions on declarative transaction management for Spring. Here is my setup - A. DAO Layer is Plain old JDBC using jdbcTemplete (No hibernate etc) B. Service Layer is POJO with declarative trasnactions as follows - save*, readonly=false, rollback for Throwable Things work fine with above setup. However when I say get*, readonly=true I see errors in my log file saying - Database connection cannot be marked as readonly. This happens for all get* methods in Service Layer. Now my questions - A. Do I have to say get* as readonly? All my get* methods are pure read DB operations. I do not wish to run them in any transaction context. How serious is the above error? B. When I remove the get* confiiguration, I do not see the errors, morever all my simple get* operations are performed without transactions. Is this the way to go? C. Why would anyone want to have transactional methods where readonly = true? Is there any practical significance of this configuration? Thank you! As always your resposes are much appreciated!

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• Key Tips in WPF

  - by Brad Leach

  Office 2007 and the Ribbon introduced the concept of "Key Tips". In short, every single command in the Ribbon receives a letter which you can press to activate that command. ... The letters are indicated by small "KeyTips" which indicate the letter to press to activate the control. KeyTips are displayed using the Alt key, so using them feels similar to how menu navigation works in Windows. (Source: http://blogs.msdn.com/jensenh/archive/2006/04/12/574930.aspx) An example of the Key Tips can be shown as follows. In this diagram, the use has pressed the ALT key, and is awaiting further input. Are there any WPF Open Source examples of "Key Tips"? How would you go about implementing something like this feature in a generic way (i.e. not requiring a Ribbon)? How would you implement this using a MVVM pattern (given that ICommand does not support InputBindings). Note: ActiPro have implemented this feature in their implementation of a Ribbon, but they have not released source code.

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• Issue with XSLT Processing on PHP

  - by monksy

  I'm getting a few errors from XSLTProcessor: XSLTProcessor::transformToDoc() [<a href='function.XSLTProcessor-transformToDoc'>function.XSLTProcessor-transformToDoc</a>]: Invalid or inclomplete context XSLTProcessor::transformToDoc() [<a href='function.XSLTProcessor-transformToDoc'>function.XSLTProcessor-transformToDoc</a>]: XSLTProcessor::transformToDoc() [<a href='function.XSLTProcessor-transformToDoc'>function.XSLTProcessor-transformToDoc</a>]: xsltValueOf: text copy failed in Which is parsing this XSLT Line: <xsl:apply-templates select="page/sections/section" mode="subset"/> The section is: <xsl:template match="page/sections/section" mode="subset"> <a href="#{shorttitle}"> <xsl:value-of select="title"/> </a> <xsl:if test="position() != last()"> | </xsl:if> </xsl:template> The XML that the section is parsing is: <shorttitle>About</shorttitle> <title>#~ About</title> The PHP XSLT Code is: $xslt = new XSLTProcessor(); $XSL = new DOMDocument(); $XSL->load( $xsltFile, LIBXML_NOCDATA); $xslt->importStylesheet( $XSL ); print $xslt->transformToXML( $XML ); My suspicion about the the errors is due to content. I'm not getting these errors with Firefox's XSLT rendering, nor am I getting an invalid XML document on the backend.I'm not getting errors on the load, its just on the transformToXML function. Does anyone have a clue on how to solve this? This is with PHP5.

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• jquery 'this' confusion

  - by Elliott

  Hi I have the code below, once the first (only) item in the menu is hovered over, the subtext should appear. I have used 'this' as I thought it should find the class with the "li" and then slideDown. This doesnt seem to work, although 'this' works for when you remove the hover, as it slides up (top part not the subtext). <body> <script type="text/javascript"> $(document).ready(function() { $('li').hover(function() { $(this).stop(true, true).slideDown(); $(this).slideDown("slow"); }, function () { $(this).slideUp("fast"); } ); }); </script> <ul> <li class="hover"> <p><a href="#">Hover</a></p> <p class="subtext">Show More</p> </li> </ul> Any advice? Thanks

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• Defining an implementation independent version of the global object in JavaScript

  - by Aadit M Shah

  I'm trying to define the global object in JavaScript in a single line as follows: var global = this.global || this; The above statement is in the global scope. Hence in browsers the this pointer is an alias for the window object. Assuming that it's the first line of JavaScript to be executed in the context of the current web page, the value of global will always be the same as that of the this pointer or the window object. In CommonJS implementations, such as RingoJS and node.js the this pointer points to the current ModuleScope. However, we can access the global object through the property global defined on the ModuleScope. Hence we can access it via the this.global property. Hence this code snippet works in all browsers and in at least RingoJS and node.js, but I have not tested other CommomJS implementations. Thus I would like to know if this code will not yield correct results when run on any other CommonJS implementation, and if so how I may fix it. Eventually, I intend to use it in a lambda expression for my implementation independent JavaScript framework as follows (idea from jQuery): (function (global) { // javascript framework })(this.global || this);

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• How to distinguish between two different UDP clients on the same IP address?

  - by Ricket

  I'm writing a UDP server, which is a first for me; I've only done a bit of TCP communications. And I'm having trouble figuring out exactly how to distinguish which user is which, since UDP deals only with packets rather than connections and I therefore cannot tell exactly who I'm communicating with. Here is pseudocode of my current server loop: DatagramPacket p; socket.receive(p); // now p contains the user's IP and port, and the data int key = getKey(p); if(key == 0) { // connection request key = makeKey(p); clients.add(key, p.ip); send(p.ip, p.port, key); // give the user his key } else { // user has a key // verify key belongs to that IP address // lookup the user's session data based on the key // react to the packet in the context of the session } When designing this, I kept in mind these points: Multiple users may exist on the same IP address, due to the presence of routers, therefore users must have a separate identification key. Packets can be spoofed, so the key should be checked against its original IP address and ignored if a different IP tries to use the key. The outbound port on the client side might change among packets. Is that third assumption correct, or can I simply assume that one user = one IP+port combination? Is this commonly done, or should I continue to create a special key like I am currently doing? I'm not completely clear on how TCP negotiates a connection so if you think I should model it off of TCP then please link me to a good tutorial or something on TCP's SYN/SYNACK/ACK mess. Also note, I do have a provision to resend a key, if an IP sends a 0 and that IP already has a pending key; I omitted it to keep the snippet simple. I understand that UDP is not guaranteed to arrive, and I plan to add reliability to the main packet handling code later as well.

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• How do I Extend Blogengine.Net to collect statistics of visitors?

  - by Stefan

  I love BlogEngine. But from what I can se it does not collect the standard information about the visitors I would like to see (referrer, browser-type and so on). When I log in as Admin I have a menu item named "Referrer". I can choose a weekday and then I'll be presented with 1 or 2 rows with "google.com 4 hits, "itmaskinen.se 6 hits" and so on, But that's not what I want to se, I want to se where my visitors come from, country, IP if possible, how many visitors and so on. If someone of you are familiar with Blogengine.Net and can point me in the right direction to where I would put my own log-code or if you know any visitor-statistic-extension that can do it for me, I would be really happy to know. I prefer an extension, because if I make changes myself to BlogEngine it may break later updates I install. Blogengine.Net is a blog software made in .Net found here: http://www.dotnetblogengine.net/ And yes, I prefer to take this question here rather then in the Blogengine.Net forum, you know why. ;) (Anyone, feel free to edit my (bad) english in this post and after that delete this sentence)

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• What is a Windows scripting language that: does not rely on .NET and offers the most OOP support and

  - by jJack

  What is a Windows scripting language that: does not rely on .NET and offers the most OOP support and has simplest deployment? It doesn't necessarily need to be a scripting language; It can be in the form of a compiled executable, however it needs to be self contained--only ONE file, no DLL's and it cannot be declared to "include" other files. I cannot rely on the user having any .NET installed and it needs to be able to run on Windows 7 64 bit. By "most OOP support", I basically mean anything that has better OOP support than VBScript. A little context: Everything I have done thus far is in VBScript and writes a bunch of data into an .html file, which in the end is to be viewed by Internet Explorer. It also zips up a bunch of directories and files. It heavily relies on accessing the registry, file-system, and WMI (I can probably do without accessing WMI though, as long as I have good registry access). I can bring myself to code in any language so long as it meets me ridonkulous requirements stated above. I look forward to some good answers from those more experienced than I.

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• LINQ Query using UDF that receives parameters from the query

  - by Ben Fidge

  I need help using a UDF in a LINQ which calculates a users position from a fixed point. int pointX = 567, int pointY = 534; // random points on a square grid var q = from n in _context.Users join m in _context.GetUserDistance(n.posY, n.posY, pointX, pointY, n.UserId) on n.UserId equals m.UserId select new User() { PosX = n.PosX, PosY = n.PosY, Distance = m.Distance, Name = n.Name, UserId = n.UserId }; The GetUserDistance is just a UDF that returns a single row in a TVP with that users distance from the points deisgnated in pointX and pointY variables, and the designer generates the following for it: [global::System.Data.Linq.Mapping.FunctionAttribute(Name="dbo.GetUserDistance", IsComposable=true)] public IQueryable<GetUserDistanceResult> GetUserDistance([global::System.Data.Linq.Mapping.ParameterAttribute(Name="X1", DbType="Int")] System.Nullable<int> x1, [global::System.Data.Linq.Mapping.ParameterAttribute(Name="X2", DbType="Int")] System.Nullable<int> x2, [global::System.Data.Linq.Mapping.ParameterAttribute(Name="Y1", DbType="Int")] System.Nullable<int> y1, [global::System.Data.Linq.Mapping.ParameterAttribute(Name="Y2", DbType="Int")] System.Nullable<int> y2, [global::System.Data.Linq.Mapping.ParameterAttribute(Name="UserId", DbType="Int")] System.Nullable<int> userId) { return this.CreateMethodCallQuery<GetUserDistanceResult>(this, ((MethodInfo)(MethodInfo.GetCurrentMethod())), x1, x2, y1, y2, userId); } when i try to compile i get The name 'n' does not exist in the current context

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• SQL: script to create country, state tables

  - by pcampbell

  Consider writing an application that requires registration for an entity, and the schema has been defined to require the country, state/prov/county data to be normalized. This is fairly typical stuff here. Naming also is important to reflect. Each country has a different name for this entity: USA = states Australia = states + territories Canada = provinces + territories Mexico = states Brazil = states Sweden = provinces UK = counties, principalities, and perhaps more! Most times when approaching this problem, I have to scratch together a list of good countries, and the states/prov/counties of each. The app may be concerned with a few countries and not others. The process is full of pain. It typically involves one of two approaches: opening up some previous DB and creating a CREATE script based on those tables. Run that script in the context of the new system. creating a DTS package from database1 to database2, with all the DDL and data included in the transfer. My goal now is to script the creation and insert of the countries that I'd be concerned with in the app of the day. When I want to roll out Countries X/Y/Z, I'll open CountryX.sql, and load its states into the ProvState table. Question: do you have a set of scripts in your toolset to create schema and data for countries and state/province/county? If so, would you share your scripts here? (U.K. citizens, please feel free to correct me by way of a comment in the use of counties.)

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• FLV performance and garbage collection

  - by justinbach

  I'm building a large flash site (AS3) that uses huge FLVs as transition videos from section to section. The FLVs are 1280x800 and are being scaled to 1680x1050 (much of which is not displayed to users with smaller screens), and are around 5-8 seconds apiece. I'm encoding the videos using On2's hi-def codec, VP6-S, and playback is pretty good with native FLV players, Perian-equipped Quicktime, and simple proof-of-concept FLV playback apps built in AS3. The problem I'm having is that in the context of the actual site, playback isn't as smooth; the framerate isn't quite as good as it should be, and more problematically, there's occasional jerkiness and dropped frames (sometimes pausing the video for as long as a quarter of a second or so). My guess is that this is being caused by garbage collection in the Flash player, which happens nondeterministically and is therefore hard to test and control for. I'm using a single instance of FLVPlayback to play the videos; I originally was using NetStream objects and so forth directly but switched to FLVPlayback for this reason. Has anyone experienced this sort of jerkiness with FLVPlayback (or more generally, with hi-def Flash video)? Am I right about GC being the culprit here, and if so, is there any way to prevent it during playback of these system-intensive transitions?

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• read text file from phone memory in android

  - by Sudhakar

  Hi..I just wanna create a text file into phone memory and have to read its content to display.Now i created a text file.But its not present in the path data/data/package-name/file name.txt & it didn't display the content on emulator. My code is.. public class PhonememAct extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView tv=(TextView)findViewById(R.id.tv); FileOutputStream fos = null; try { fos = openFileOutput("Test.txt", Context.MODE_PRIVATE); } catch (FileNotFoundException e2) { // TODO Auto-generated catch block e2.printStackTrace(); } try { fos.write("Hai..".getBytes()); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } FileInputStream fis = null; try { fis = openFileInput("Test.txt"); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } int c; try { while((c=fis.read())!=-1) { tv.setText(c); setContentView(tv); //k += (char)c; } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { fis.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } Thanks in adv.

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• Another IKImageView Question

  - by Brian Postow

  I'm trying to use the select and copy feature of the IKImageView. If all you want to do is have an app with an image, select a portion and copy it to the clipboard, it's easy. You set the copy menu pick to the first responder's copy:(id) method and magically everything works. However, if you want something more complicated, like you want to copy as part of some other operation, I can't seem to find the method to do this. IKImageView doesn't seem to have a copy method, it doesn't seem to have a method that will even tell you the selected rectangle! I have gone through Hillegass' book, so I understand how the clipboard works, just not how to get the portion of the image out of the view... Now, I'm starting to think that I made a mistake in basing my project on IKImageView, but it's what Preview is built on (or so I've read), so I figured it had to be stable... and anyway, now it's too late, I'm too deep in this to start over... So, other than not using IKImageView, any suggestions on how to copy the select region to the clipboard manually?

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• Replacing values using preg_replace

  - by Jeepstone

  I have a Joomla plugin (not important in this context), which is designed to take an input with a load of numbers (within a paragraph of text) and replace them with a series of s. My problem is that I need to do a preg_replace on my $article-text, but I don't know how to then apply the changes to the matched terms. I've seen the preg_replace_callback, but I don't know how I can call that within a function. function onPrepareContent( &$article, &$params, $limitstart ) { global $mainframe; // define the regular expression $pattern = "#{lotterynumbers}(.*?){/lotterynumbers}#s"; if(isset($article->text)){ preg_match($pattern, $article->text, $matches); $numbers = explode("," , $matches[1]); foreach ($numbers as $number) { echo "<div class='number'><span>" . $number . "</span></div>"; } }else{ $article->text = 'No numbers'; } return true; } AMENDED CODE: function onPrepareContent( &$article, &$params, $limitstart ) { global $mainframe; // define the regular expression $pattern = "#{lotterynumbers}(.*?){/lotterynumbers}#s"; if(isset($article->text)){ preg_match($pattern, $article->text, $matches); $numbers = explode("," , $matches[1]); foreach ($numbers as $number) { $numberlist[] = "<div class='number'><span>" . $number . "</span></div>"; } $numberlist = implode("", $numberlist); $article->text = preg_replace($pattern, $numberlist, $article->text); }else{ $article->text = 'No numbers'; } return true; }

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• Programatically create web application & sub site

  - by Tejas

  I am using the following code to programatically create a web application & sub site, try { SPWebApplicationBuilder webAppBuilder = new SPWebApplicationBuilder(SPFarm.Local); SPWebApplication newApplication; int myPort = 3333; webAppBuilder.Port = myPort; //Port No. webAppBuilder.RootDirectory = new System.IO.DirectoryInfo("C:\\Inetpub\\wwwroot\\wss\\VirtualDirectories\\" + myPort); webAppBuilder.CreateNewDatabase = true; // Create new database webAppBuilder.DatabaseName = "WSS_Content_372772890a5a4a04abb460cd9ea3bd22"; // Database name webAppBuilder.DatabaseServer = webAppBuilder.DefaultZoneUri.Host; // DatabaseServer Host name/computer name webAppBuilder.UseNTLMExclusively = true; // Use NTLM authentication newApplication = webAppBuilder.Create(); // Create new web application newApplication.Provision(); // Provision it into web farm using (var mySiteCollection = newApplication.Sites.Add("/", "Site 3", "Site 3 Decscription", 1033, "STS#1", "In-Wai-Svr2\\Administrator", "Administrator", "[email protected]")) { using (var rootWeb = mySiteCollection.RootWeb) { // Code customizing root site goes here using (var subSite = rootWeb.Webs.Add("Site3.1", "Site 3.1", "Site 3.1 Description", 1033, "STS#1", true, false)) { // Code customizing sub site goes here } } } } catch(Exception ex) { ; } It works fine i.e. it creates the web application on the specified port with sub site but this sub site will not be shown under Sites menu of Quick launch bar also it will not be shown as a separate tab on the Home Page. Is it possible to do it programatically?

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• I have two choices of Master's classes this fall. Which is the most useful?

  - by ahplummer

  (For background purposes and context): I am a Software Engineer, and manage other Software Engineers currently. I kind of wear two hats right now: one of a programmer, and one as a 'team lead'. In this regard, I've started going back to school to get my Master's degree with an emphasis in Computer Science. I already have a Bachelor's in Computer Science, and have been working in the field for about 13 years. Our primary development environment is a Windows environment, writing in .NET, Delphi, and SQL Server. Choice #1: CST 798 DATA VISUALIZATION Course Description: Basically, this is a course on the "Processing" language: http://processing.org/ Choice #2: CST 711 INFORMATICS Course Description: (From catalog): Informatics is the science of the use and processing of data, information, and knowledge. This course covers a variety of applied issues from information technology, information management at a variety of levels, ranging from simple data entry, to the creation, design and implementation of new information systems, to the development of models. Topics include basic information representation, processing, searching, and organization, evaluation and analysis of information, Internet-based information access tools, ethics and economics of information sharing.

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• How to create refresh statements for TableAdapter objects in Visual Studio?

  - by Mark Wilkins

  I am working on developing an ADO.NET data provider and an associated DDEX provider. I am unable to convince the Visual Studio TableAdapater Configuration Wizard to generate SQL statements to refresh the data table after inserts and updates. It generates the insert and delete statements but will not produce the select statements to do the refresh. The functionality referred to can be accessed by dropping a table from the Server Explorer (inside Visual Studio) onto a DataSet (e.g., DataSet1.xsd). It creates a TableAdapter object and configures SELECT, UPDATE, DELETE, and INSERT statements. If you right click on the TableAdapter object, the context menu has a “Configure” option that starts the “TableAdapter Configuration Wizard”. The first dialog of that wizard has an Advanced Options button, which leads to an option titled “Refresh the data table”. When used with SQL Server tables, that option causes a statement of the form “select field1, field2, …” to be added on to the end of the commands for the TableAdapter’s InsertCommand and UpdateCommand. Do you have any idea what type property or interface might need to be exposed from the DDEX provider (or maybe the ADO.NET data provider) in order to make Visual Studio add those refresh statements to the update/insert commands? The MSDN documentation for the Advanced SQL Generation Options Dialog Box has a note stating, “Refreshing the data table is only supported on databases that support batching of SQL statements.” This seems to imply that a .NET data provider might need to expose some property indicating such behavior is supported. But I cannot find it. Any ideas?

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• How to install Eclipse + PHP Development Tools (PDT) + Debugger on Mac in The Year 2010

  - by aphex5

  I had a lot of trouble installing Eclipse and PDT on my system. It took two days, largely because all the tutorials I could find were out of date (written in 2008, it's 2010 now) and various steps they included were no longer necessary, broken, or irrelevant. I wanted to write my process here so it could be improved upon (via wiki) as time goes on. Install Eclipse without PHP plugin ("Eclipse Classic"). This will give you a complete Eclipse, which I find preferable, as the UI is more fleshed out (e.g. you get a default list of Perspectives, which helps you understand what Perspectives are.) Install PDT SDK with the Help Install New Software menu item. You'd think you'd be done here, but if you try to run something, it'll fail complaining of not having a debugger. Install the Zend Debugger. It'll fail if you try to use the Install New Software option, as many tutorials suggest ("No repository found containing osgi.bundle.org.zend.php.debug.debugger.5.3.7.v20091116".) Instead, download it from http://www.zend.com/en/community/pdt, and manually copy the features/ and plugins/ directory into your Eclipse install (these instructions are not written anywhere). Restart Eclipse Monkey with preferences for a while -- if you followed a previous tutorial and tried to manually add your php executable to Eclipse prefs (/usr/bin/php), remove it (PHP PHP Executables). Set one of the Zend Debugger executables to the default. If you've already tried to execute a .php file, remove the existing "Run" profile you (maybe weren't aware that you) created (Run Debug Configurations...). Eclipse works! You should be able to run a .php file as a script just fine.

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• Can I use loops in repeater? Is it recommended?

  - by iTayb

  My datasource has an Rating dataItem contains an integer from 0 to 5. I'd like to print stars accordignly. I'm trying to do it within Repeater control: <b>Rating:</b> <% for (int j = 1; j <= DataBinder.Eval(Container.DataItem, "Rating"); j++) { %> <img src="App_Pics/fullstar.png" /> <% } for (int j = 1; j <= 5 - DataBinder.Eval(Container.DataItem, "Rating"); j++) { %> <img src="App_Pics/emptystar.png" /> <%} %> I get the error The name 'Container' does not exist in the current context. It is weird, because when I used <%# DataBinder.Eval(Container.DataItem, "Name")%> a line before, it worked great. Is it clever to include loops in my aspx page? I think it's not very convenient. What's my alternatives? What's that # means? Thank you very much.

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• Hotkeys in webapps

  - by Johoo

  When creating webapps, is there any guidelines on which keys you can use for your own hotkeys without overriding too many of the browsers default hotkeys. For example i might want to have a custom copy command for copying entire sets of data that only makes sense for my program instead of just text. The logical combination for this would be ctrl+c but that would destroy the default copy hotkey for normal text. One solution i was thinking about is to only catch the hotkey when it "makes sense" but when you use some advanced custom selection it might be hard to differentiate if your data is focused, if text is selected or both. Right now i am only using single keys as the hotkey, so just 'c' for the example above and this seems to be what most other sites are doing too. The problem is that if you have text input this doesn't work so good. Is this the best solution? To clarify I'm talking about advanced webapps that behave more like normal programs and not just some website presenting information(even though i think these guidlines would be valid for both cases). So for the copy example it might not be a big deal if you can't copy the text in the menu but when ctrl+tab, alt+d or ctrl+e doesn't work i would be really pissed, cough flash cough.

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• VS2010 express beta2 - no add reference dialog, no open file/project dialogs

  - by David

  Just installed VS2010 express for Windows Phone last night. Install went smoothly. It creates a project, compiles, and deploys the app to the emulator. Here's the problem: When I try to "Add Reference" through the Project menu, I do not get the Add Reference dialog box. Same thing if I right click References in the solution explorer and click Add Reference. That's not all. "File...Open" and "File...Open Project" also fail to throw up an open file dialog box. When attempting any of these actions, the IDE quickly loses and regains focus. Even pressing a keyboard shortcut (Ctrl+O) causes the IDE to quickly lose and regain focus, but no open file dialog box appears. This is what I have tried, not particularly in this order: 1. Turned off UAC 2. Monitored file and registry access using Process Monitor during a File...Open operation. File activity showed mostly "SUCCESS" with a few "FAST IO DISALLOWED" and a few "INVALID DEVICE REQUEST" results. Registry activity showed mostly "SUCCESS" with some "NAME NOT FOUND" and a few "BUFFER OVERFLOW" results. 3. Created a new, clean Windows account to run the IDE from 4. Forced a test project to add a reference to "System.Xml.Linq" by editing the ".csproj" project file. Project failed to load in the IDE. I don't have these problems at all on 2 other Windows 7 computers with VS2010 C# express beta 2 installed. One machine is 32bit and the other 64bit, both Home Premium edition. My system: Windows 7 Home Premium, 64bit Other Visual Studio products installed: VS2008 C# express, VS2008 C++ express One other thing to note: Several months ago I installed the non-phone distribution of VS2010 C# express beta 2, and I had the same exact problems. Back then I chalked it up to being beta and went back to VS2008 C# express, where I do not have these issues.

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• Adding shortcut for WiX file in a different fragment.

  - by matt

  I'm using heat.exe to generate fragments similar to this: <Fragment> <DirectoryRef Id="INSTALLDIR"> <Component Id="id1" Guid="*"> <File Id="fid1" KeyPath="yes" Source="SourceDir\Foo1.dll" /> </Component> <Component Id="id2" Guid="*"> <File Id="fid2" KeyPath="yes" Source="SourceDir\Foo2.dll" /> </Component> <Component Id="id3" Guid="*"> <File Id="fid3" KeyPath="yes" Source="SourceDir\Bar.exe" /> </Component> </DirectoryRef> </Fragment> <Fragment> <ComponentGroup Id="Components"> <ComponentRef Id="id1" /> <ComponentRef Id="id2" /> <ComponentRef Id="id3" /> </ComponentGroup> </Fragment> These fragments are stored in the auto-generated wxs file. I'm then adding them into my feature (in the main WiX file) like so: <ComponentGroupRef Id="Components"/> This works fine. However, I'd also like to add a shortcut to Bar.exe to my start menu. I ideally want to do this in my main wix file, with the Bar.exe component still residing in the auto-generated wxs file. How would I approach this problem without modifying the auto-generated code?

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• How to avoid/prevent the system to draw/redraw/refresh/paint a WPF window

  - by Leo

  I have an Application WPF with Visual C# (using visual studio 2010) and I want to draw OpenGL scenes on the WPF window itself. As for the OpenGL drawinf itself, I'm able to draw it w/o problems, meaning, I can create GL render context from the WPF main window itself (no additional OpenGL control, no win32 window inside WPF window), use GL commands and use swapbuffer (all this is done inside a dll - using C - I created myself). However, I have an annoying flickering when, for example, I resize the window. I overrided the OnRender method to re-draw with opengl, but after this, the window is redraw with the background color. It's likely that the system is automatically redrawing it. With WindowForms I'm able to prevent the system to redraw automatically (defining some ControlStyles to true or false, like UserPaint = true, AllPaintingInWmPaint = true, Opaque = true, ResizeRedraw = true, DoubleBuffer = false), but, aside setting Opacity to 1, I don't know how to do all that with WPF. I was hoping that overriding OnRender with no operations inside it would avoid redrawin, but somehow the system still draw the background. Do anyone know how to prevent system to redraw the window? Thx for your time

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• Keeping values on form after submition

  - by Lina

  Hi, I'm trying to keep the entered data in the form after submitting by using "value=..." I'm getting a compilation error on the following code: <form id="myform"> <input id="hour" type="text" name="hour" value="<%=hour%>" style="width:30px; text-align:center;" /> : <input id="minute" type="text" name="minute" value="<%=minute%>" style="width:30px; text-align:center;" /> <br/> <input type="submit" value="Validate!" /> </form> the error is : Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS0103: The name 'hour' does not exist in the current context any solution? thanks a lot in advance, Lina

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