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• HOWTO: Migrate SharePoint site from one farm to another?

  - by Ramiz Uddin

  Hi Everyone, I've a site deployed on a developed machine. The site was developed under WSS 3.0 which contains custom List, Features, Templates, Styles etc. What I've to do is to create a deployment package (setup) which I can give away to my client. I know about stsadm but I don't have the access of the production machine. Is there a way I can package all the dependencies in a single file (installation file) and run on the server which will include all the dependencies (including site content)? I've tried to experiment this with SharePoint Content Deployment Wizard. It all went well when Export the site but always fail to Import with the following message: [2/2/2010 3:43:25 PM]: Start Time: 2/2/2010 3:43:25 PM. [2/2/2010 3:43:25 PM]: Progress: Initializing Import. [2/2/2010 3:43:42 PM]: FatalError: Could not find WebTemplate #75805 with LCID 1033. at Microsoft.SharePoint.Deployment.ImportRequirementsManager.VerifyWebTemplate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.Validate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.DeserializeAndValidate() at Microsoft.SharePoint.Deployment.SPImport.VerifyRequirements() at Microsoft.SharePoint.Deployment.SPImport.Run() [2/2/2010 3:43:48 PM]: Progress: Import Completed. [2/2/2010 3:43:48 PM]: Finish Time: 2/2/2010 3:43:48 PM. [2/2/2010 3:43:48 PM]: Completed with 0 warnings. [2/2/2010 3:43:48 PM]: Completed with 1 errors. [2/2/2010 3:44:51 PM]: Start Time: 2/2/2010 3:44:51 PM. [2/2/2010 3:44:51 PM]: Progress: Initializing Import. [2/2/2010 3:45:08 PM]: FatalError: Could not find WebTemplate #75805 with LCID 1033. at Microsoft.SharePoint.Deployment.ImportRequirementsManager.VerifyWebTemplate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.Validate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.DeserializeAndValidate() at Microsoft.SharePoint.Deployment.SPImport.VerifyRequirements() at Microsoft.SharePoint.Deployment.SPImport.Run() [2/2/2010 3:45:14 PM]: Progress: Import Completed. [2/2/2010 3:45:14 PM]: Finish Time: 2/2/2010 3:45:14 PM. [2/2/2010 3:45:14 PM]: Completed with 0 warnings. [2/2/2010 3:45:14 PM]: Completed with 1 errors. [2/2/2010 3:56:17 PM]: Start Time: 2/2/2010 3:56:17 PM. [2/2/2010 3:56:17 PM]: Progress: Initializing Import. [2/2/2010 3:56:34 PM]: FatalError: Could not find WebTemplate #75805 with LCID 1033. at Microsoft.SharePoint.Deployment.ImportRequirementsManager.VerifyWebTemplate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.Validate(SPRequirementObject reqObj) at Microsoft.SharePoint.Deployment.ImportRequirementsManager.DeserializeAndValidate() at Microsoft.SharePoint.Deployment.SPImport.VerifyRequirements() at Microsoft.SharePoint.Deployment.SPImport.Run() [2/2/2010 3:56:39 PM]: Progress: Import Completed. [2/2/2010 3:56:39 PM]: Finish Time: 2/2/2010 3:56:39 PM. [2/2/2010 3:56:39 PM]: Completed with 0 warnings. [2/2/2010 3:56:39 PM]: Completed with 1 errors. I actually couldn't find a good reference on how to use it. But, this software doesn't something I'm looking for which can create a simple deployment package (after that you don't need to do anything). I might not be correct but after two days of googling I think there is no such utility (freeware) that can create a simple package of a site and install on other farm without even need to configure anything before you run the installation package. You people might have an advise which can help me to look/think outside the box and get to the solution quickly instead adding more days working on the problem. Please, share only freewares. I can't afford to buy anything. I'm waiting to be surprised with a good share :) Have a good day! Thanks.

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• Looking for feedback on a first SAML implementation.

  - by morgancodes

  Hello, I've been tasked with designing a very simple SSO (single sign-on) process. My employer has specified that it should be implimented in SAML. I'd like to create messages that are absolutely as simple as possible while confirming to the SAML spec. I'd be really grateful if some of you would look at my request and response messages and tell me if they make sense for my purpose, if they include anything that doesn't need to be there, and if they are missing anything that does need to be there. Addionally, I'd like to know where in the response I should put additional information about the subject; in particular, the subject's email address. The interaction needs to work as follows: 1) User requests service from service provider at this point, the service provider knows nothing about the user. 2) Service provider requests authentication for user from identity provider 3) User is authenticated/registered by identity provider 4) Identity provider responds to Service provider with authentication success message, PLUS user's email address. Here's what I think the request should be: <?xml version="1.0" encoding="UTF-8"?> <samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" ID="abc" IssueInstant="1970-01-01T00:00:00.000Z" Version="2.0" AssertionConsumerServiceURL="http://www.IdentityProvider.com/loginPage"> <saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"> http://www.serviceprovider.com </saml:Issuer> <saml:Subject> <saml:NameID Format="urn:oasis:names:tc:SAML:2.0:nameid-format:transient">3f7b3dcf-1674-4ecd-92c8-1544f346baf8</saml:NameID> </saml:Subject> Here's what I think the response should be: <?xml version="1.0" encoding="UTF-8"?> <samlp:Response xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" Destination="http://www.serviceprovider.com/desitnationURL" ID="123" IssueInstant="2008-11-21T17:13:42.872Z" Version="2.0"> <samlp:Status> <samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/> </samlp:Status> <saml:Assertion xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" Version="2.0"> <saml:Subject> <saml:NameID Format="urn:oasis:names:tc:SAML:2.0:nameid-format:transient">3f7b3dcf-1674-4ecd-92c8-1544f346baf8</saml:NameID> <saml:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:profiles:SSO:browser"> <saml:SubjectConfirmationData InResponseTo="abc"/> </saml:SubjectConfirmation> </saml:Subject> <saml:AuthnStatement AuthnInstant="2008-11-21T17:13:42.899Z"> <saml:AuthnContext> <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef> </saml:AuthnContext> </saml:AuthnStatement> </saml:Assertion> </samlp:Response> So, again, my questions are: 1) Is this a valid SAML interaction? 2) Can either the request or response xml be simplified? 3) Where in the response should I put the subject's email address? I really apprecaite your help. Thanks so much! -Morgan

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• C++ custom exceptions: run time performance and passing exceptions from C++ to C

  - by skyeagle

  I am writing a custom C++ exception class (so I can pass exceptions occuring in C++ to another language via a C API). My initial plan of attack was to proceed as follows: //C++ myClass { public: myClass(); ~myClass(); void foo() // throws myException int foo(const int i, const bool b) // throws myException } * myClassPtr; // C API #ifdef __cplusplus extern "C" { #endif myClassPtr MyClass_New(); void MyClass_Destroy(myClassPtr p); void MyClass_Foo(myClassPtr p); int MyClass_FooBar(myClassPtr p, int i, bool b); #ifdef __cplusplus }; #endif I need a way to be able to pass exceptions thrown in the C++ code to the C side. The information I want to pass to the C side is the following: (a). What (b). Where (c). Simple Stack Trace (just the sequence of error messages in order they occured, no debugging info etc) I want to modify my C API, so that the API functions take a pointer to a struct ExceptionInfo, which will contain any exception info (if an exception occured) before consuming the results of the invocation. This raises two questions: Question 1 1. Implementation of each of the C++ methods exposed in the C API needs to be enclosed in a try/catch statement. The performance implications for this seem quite serious (according to this article): "It is a mistake (with high runtime cost) to use C++ exception handling for events that occur frequently, or for events that are handled near the point of detection." At the same time, I remember reading somewhere in my C++ days, that all though exception handling is expensive, it only becmes expensive when an exception actually occurs. So, which is correct?. what to do?. Is there an alternative way that I can trap errors safely and pass the resulting error info to the C API?. Or is this a minor consideration (the article after all, is quite old, and hardware have improved a bit since then). Question 2 I wuld like to modify the exception class given in that article, so that it contains a simple stack trace, and I need some help doing that. Again, in order to make the exception class 'lightweight', I think its a good idea not to include any STL classes, like string or vector (good idea/bad idea?). Which potentially leaves me with a fixed length C string (char*) which will be stack allocated. So I can maybe just keep appending messages (delimted by a unique separator [up to maximum length of buffer])... Its been a while since I did any serious C++ coding, and I will be grateful for the help. BTW, this is what I have come up with so far (I am intentionally, not deriving from std::exception because of the performance reasons mentioned in the article, and I am instead, throwing an integral exception (based on an exception enumeration): class fast_exception { public: fast_exception(int what, char const* file=0, int line=0) : what_(what), line_(line), file_(file) {/*empty*/} int what() const { return what_; } int line() const { return line_; } char const* file() const { return file_; } private: int what_; int line_; char const[MAX_BUFFER_SIZE] file_; }

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• jquery Tab - Open Link in current panel does not work

  - by Maik Koster

  Hi, I just started playing around with the Jquery ui tabs. The content of the Tabs consist mainly of static content at the beginning. Now some of the content within the panels do have Links to some kind of subcontent. So if the User clicks on a link in the panel I would like to replace the content of the current panel with the content coming from the link. So I used the script directly from the jquery ui tab documentation but I can't get it to work. It is always opening the link directly, not within the panel. The code I use for testing is quite simple: <div id="MyTabs"> <ul> <li><a href="#TestTab1">TestTab</a></li> <li><a href="#TestTab2">TestTab</a></li> </ul> <div id="TestTab1"> Lorem ipsum dolor. dumm di dumm <a href="http://mywebserver/somelink">Test</a> </div> <div id="TestTab2"> Lorem ipsum dolor. dumm di dumm 2 <a href="http://mywebserver/somelink2">Test 2</a> </div> </div> <script type="text/javascript"> $(document).ready(function() { $('#MyTabs').tabs({ load: function(event, ui) { $('a', ui.panel).click(function() { $(ui.panel).load(this.href); return false; }); } }); }); Additionally, if I have the content of the panel loaded using an AJAX call no link within the panel is working whatsoever. Any idea what I`m doing wrong? Help is really appreciated Regards Maik Edit1: OK, I got a bit further. I replaced the Javascript with the following snippet: $(function() { $("#MyTabs").tabs(); $("#MyTabs").bind('tabsshow', function(event, ui) { AddClickHandler(ui); }); }); function AddClickHandler(ui) { $('a', ui.panel).click(function() { MyAlert("AddClickHandler"); $(ui.panel).load(this.href, AddClickHandler(ui)); return false; }); } After this change all links on a panel will update the content of the current panel. So far so good. Still one problem left. I can't get it to work for subsequent links. I tried to do it with the second "AddClickHandler" for callback when the ajax call has finished. Using a different function with a simple alert showd it is actually been called when the content of the panel has been updated. But I can't bind anything to the new links in that content. The "$('a', ui.panel)..." doesn't work. What would be the correct selector for this? Any hint? Regards Maik

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• What would cause ANY .NET application to crash immediately... except a project I create and Debug in

  - by blak3r

  My software recently got deployed to a customer who said that the application was crashing immediately after it started. After some initial debugging, the customer provided me remote access to one of the computers which was unable to run the application. I found that the crash wasn't specific to my application. Any application which depended on the .NET framework crashed immediately. Conveniently, Visual Studio 2008 was installed so I created a quick hello world application on it and clicked Debug. The application worked fine. But, then when I tried to execute the generated binaries in the /bin/Debug/HelloWorld.exe directory outside of visual studio it crashed. List of things i've tried (UPDATED): I checked that "Everyone" has Read&Execute permissions for c:\Windows. To test that the problem was with the .NET Framework (and not my application), I attempted to download Paint .NET on to the computers. The setup frontend crashed in the same manner. Performed a repair of the .NET framework as outlined in http://support.microsoft.com/kb/908077 (Boy was this fun and time consuming). No luck. Installed .NET 3.5 SP1 (before it just had .NET 3.5) Note: my application targets 2.0 so I did this more as a long shot... but i learned in the process that .NET 3.5 SP1 also updates the underlying frameworks. Ran Aaron Stebner's .NET Setup Verification Tool. This tool indicated that .NET was successfully installed. (I forget if i checked all the versions but at least 2.0 worked). Tested some mini hello world applications which were targeted for .NET 2.0 and .NET 3.5 and both crashed in the same way. Tried launching .NET apps via windbg cmd line. Doing this did allow me invoke my simple hello world applications. So, simple .NET hello world works when invoked by windbg or by launching via debug in visual studio... but doesn't if i try to execute it standalone. I created a dump file using WinDbg. It wasn't all that revealing to me. FAULTING_IP: mscorwks!PEImage::GetEntryPointToken+21 79f4ff9d f6401010 test byte ptr [eax+10h],10h EXCEPTION_RECORD: 0012f710 -- (.exr 0x12f710) ExceptionAddress: 79f4ff9d (mscorwks!PEImage::GetEntryPointToken+0x00000021) ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 00000000 Parameter[1]: 00000010 Attempt to read from address 00000010 FAULTING_THREAD: 00000b44 PROCESS_NAME: MyProcess.exe ERROR_CODE: (NTSTATUS) 0x80000003 - {EXCEPTION} Breakpoint A breakpoint has been reached. EXCEPTION_CODE: (HRESULT) 0x80000003 (2147483651) - One or more arguments are invalid DETOURED_IMAGE: 1 NTGLOBALFLAG: 0 APPLICATION_VERIFIER_FLAGS: 0 MANAGED_STACK: !dumpstack -EE OS Thread Id: 0xb44 (0) Current frame: ChildEBP RetAddr Caller,Callee EXCEPTION_OBJECT: !pe cb10b4 Exception object: 00cb10b4 Exception type: System.ExecutionEngineException Message: <none> InnerException: <none> StackTrace (generated): <none> StackTraceString: <none> HResult: 80131506 MANAGED_OBJECT_NAME: System.ExecutionEngineException CONTEXT: 0012f72c -- (.cxr 0x12f72c) eax=00000000 ebx=00000000 ecx=00000000 edx=0000000e esi=001a1490 edi=00000001 eip=79f4ff9d esp=0012f9f8 ebp=0012fa1c iopl=0 nv up ei pl zr na pe nc cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246 mscorwks!PEImage::GetEntryPointToken+0x21: 79f4ff9d f6401010 test byte ptr [eax+10h],10h ds:0023:00000010=?? Resetting default scope READ_ADDRESS: 00000010 FOLLOWUP_IP: mscorwks!PEImage::GetEntryPointToken+21 79f4ff9d f6401010 test byte ptr [eax+10h],10h BUGCHECK_STR: APPLICATION_FAULT_NULL_CLASS_PTR_DEREFERENCE_SHUTDOWN PRIMARY_PROBLEM_CLASS: NULL_CLASS_PTR_DEREFERENCE_SHUTDOWN DEFAULT_BUCKET_ID: NULL_CLASS_PTR_DEREFERENCE_SHUTDOWN LAST_CONTROL_TRANSFER: from 79ef02b5 to 79f4ff9d STACK_TEXT: 79f4ff9d mscorwks!PEImage::GetEntryPointToken+0x21 79ef02b5 mscorwks!PEFile::GetEntryPointToken+0xa0 79eefeaf mscorwks!SystemDomain::ExecuteMainMethod+0xd4 79fb9793 mscorwks!ExecuteEXE+0x59 79fb96df mscorwks!_CorExeMain+0x15c 7900b1b3 mscoree!_CorExeMain+0x2c 7c817077 kernel32!BaseProcessStart+0x23 SYMBOL_STACK_INDEX: 0 SYMBOL_NAME: mscorwks!PEImage::GetEntryPointToken+21 FOLLOWUP_NAME: MachineOwner MODULE_NAME: mscorwks IMAGE_NAME: mscorwks.dll DEBUG_FLR_IMAGE_TIMESTAMP: 471ef729 STACK_COMMAND: .cxr 0012F72C ; kb ; dds 12f9f8 ; kb FAILURE_BUCKET_ID: NULL_CLASS_PTR_DEREFERENCE_SHUTDOWN_80000003_mscorwks.dll!PEImage::GetEntryPointToken BUCKET_ID: APPLICATION_FAULT_NULL_CLASS_PTR_DEREFERENCE_SHUTDOWN_DETOURED_mscorwks!PEImage::GetEntryPointToken+21 WATSON_STAGEONE_URL: http://watson.microsoft.com/StageOne/MyProcess_exe/2_4_4_39/4a8a192c/unknown/0_0_0_0/bbbbbbb4/80000003/00000000.htm?Retriage=1 Followup: MachineOwner Edit 1:The event log details for this error say it's a .NET Runtime version 2.0.50727.3053 - Fatal Execution Engine Error (7A097706)(80131506). Edit 2 (10-7-09): This issue is still active. Edit 3 (3-29-10): This update is to let everyone know that I never did successfully solve the problem. The customer who's machine this was on lost interest in solving it and just reimaged the machine :(. Thanks for all the contributions though.

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• Modern Java alternatives

  - by Ralph

  I'm not sure if stackoverflow is the best forum for this discussion. I have been a Java developer for 14 years and have written an enterprise-level (~500,000 line) Swing application that uses most of the standard library APIs. Recently, I have become disappointed with the progress that the language has made to "modernize" itself, and am looking for an alternative for ongoing development. I have considered moving to the .NET platform, but I have issues with using something the only runs well in Windows (I know about Mono, but that is still far behind Microsoft). I also plan on buying a new Macbook Pro as soon as Apple releases their new rumored Arrandale-based machines and want to develop in an environment that will feel "at home" in Unix/Linux. I have considered using Python or Ruby, but the standard Java library is arguably the largest of any modern language. In JVM-based languages, I looked at Groovy, but am disappointed with its performance. Rumor has it that with the soon-to-be released JDK7, with its InvokeDynamic instruction, this will improve, but I don't know how much. Groovy is also not truly a functional language, although it provides closures and some of the "functional" features on collections. It does not embrace immutability. I have narrowed my search down to two JVM-based alternatives: Scala and Clojure. Each has its strengths and weaknesses. I am looking for the stackoverflow readerships' opinions. I am not an expert at either of these languages; I have read 2 1/2 books on Scala and am currently reading Stu Halloway's book on Clojure. Scala is strongly statically typed. I know the dynamic language folks claim that static typing is a crutch for not doing unit testing, but it does provide a mechanism for compile-time location of a whole class of errors. Scala is more concise than Java, but not as much as Clojure. Scala's inter-operation with Java seems to be better than Clojure's, in that most Java operations are easier to do in Scala than in Clojure. For example, I can find no way in Clojure to create a non-static initialization block in a class derived from a Java superclass. For example, I like the Apache commons CLI library for command line argument parsing. In Java and Scala, I can create a new Options object and add Option items to it in an initialization block as follows (Java code): final Options options = new Options() { { addOption(new Option("?", "help", false, "Show this usage information"); // other options } }; I can't figure out how to the same thing in Clojure (except by using (doit...)), although that may reflect my lack of knowledge of the language. Clojure's collections are optimized for immutability. They rarely require copy-on-write semantics. I don't know if Scala's immutable collections are implemented using similar algorithms, but Rich Hickey (Clojure's inventor) goes out of his way to explain how that language's data structures are efficient. Clojure was designed from the beginning for concurrency (as was Scala) and with modern multi-core processors, concurrency takes on more importance, but I occasionally need to write simple non-concurrent utilities, and Scala code probably runs a little faster for these applications since it discourages, but does not prohibit, "simple" mutability. One could argue that one-off utilities do not have to be super-fast, but sometimes they do tasks that take hours or days to complete. I know that there is no right answer to this "question", but I thought I would open it up for discussion. If anyone has a suggestion for another JVM-based language that can be used for enterprise level development, please list it. Also, it is not my intent to start a flame war. Thanks, Ralph

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• Why will my AdRotator not display images? (Image paths are correct)

  - by KSwift87

  Hi. I'm writing a simple web application in C# and I've gotten to the part where I must add an AdRotator object and link four images to it. I have done this, but no matter what I do the images will not show up; only the alternate text. It makes no sense because the paths are correct. Supposedly AdRotator controls are really simple to use... But anyway below is my code. Search.aspx: <%@ Page Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Search.aspx.cs" Inherits="Module6.WebForm2" Title="Search" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <form id="Search" runat="server"> This is the Search page! <div class="StartCalendar"> <asp:Calendar ID="Calendar1" runat="server" Caption="Start Date" TodayDayStyle-Font-Bold="true" TodayDayStyle-ForeColor="Crimson" SelectedDayStyle-BackColor="DarkCyan" /> </div> <div class="EndCalendar"> <asp:Calendar ID="Calendar2" runat="server" Caption="End Date" TodayDayStyle-Font-Bold="true" TodayDayStyle-ForeColor="Crimson" SelectedDayStyle-BackColor="DarkCyan" /> </div> <br /><br /> <div class="Search"> <asp:Button ID="btnSearch" runat="server" Text="Search" UseSubmitBehavior="true" /> </div><br /><br /> <div class="CenterAd"> <asp:AdRotator ID="AdRotator1" runat="server" Target="_blank" AdvertisementFile="~/Advertisements.xml" /> </div> <br /><br /> <div class="Results"> <asp:GridView ID="gvResults" runat="server" /> </div> </form> </asp:Content> Advertisements.xml: <?xml version="1.0" encoding="utf-8" ?> <Advertisements> <Ad> <ImageURL>~/images/colts.jpg</ImageURL> <AlternateText>Colts Image</AlternateText> </Ad> <Ad> <ImageURL>~/images/conseco.gif</ImageURL> <AlternateText>Conseco Image</AlternateText> </Ad> <Ad> <ImageURL>~/images/IndianapolisIndians.png</ImageURL> <AlternateText>Indianapolis Indians Image</AlternateText> </Ad> <Ad> <ImageURL>~/images/pacers.gif</ImageURL> <AlternateText>Pacers Image</AlternateText> </Ad> </Advertisements> Any and all help is GREATLY appreciated.

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• "The Controls collection cannot be modified because the control contains code blocks"

  - by Daniel P

  I am trying to create a simple user control that is a slider. When I add a AjaxToolkit SliderExtender to the user control I get this (*&$#()@# error: Server Error in '/' Application. The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %).] System.Web.UI.ControlCollection.Add(Control child) +8677431 AjaxControlToolkit.ScriptObjectBuilder.RegisterCssReferences(Control control) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ScriptObjectBuilder.cs:293 AjaxControlToolkit.ExtenderControlBase.OnLoad(EventArgs e) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ExtenderControlBase.cs:306 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 Version Information: Microsoft .NET Framework Version:2.0.50727.3074; ASP.NET Version:2.0.50727.3074 I have tried putting a placeholder in the user control and adding the textbox and slider extender to the placeholder programmatically and I still get the error. Here is the simple code: <table cellpadding="0" cellspacing="0" style="width:100%"> <tbody> <tr> <td></td> <td> <asp:Label ID="lblMaxValue" runat="server" Text="Maximum" CssClass="float_right" /> <asp:Label ID="lblMinValue" runat="server" Text="Minimum" /> </td> </tr> <tr> <td style="width:60%;"> <asp:CheckBox ID="chkOn" runat="server" /><asp:Label ID="lblPrefix" runat="server" />:&nbsp;<asp:Label ID="lblSliderValue" runat="server" />&nbsp;<asp:Label ID="lblSuffix" runat="server" /> </td> <td style="text-align:right;width:40%;"> <asp:TextBox ID="txtSlider" runat="server" Text="50" style="display:none;" /> <ajaxToolkit:SliderExtender ID="seSlider" runat="server" BehaviorID="seSlider" TargetControlID="txtSlider" BoundControlID="lblSliderValue" Orientation="Horizontal" EnableHandleAnimation="true" Length="200" Minimum="0" Maximum="100" Steps="1" /> </td> </tr> </tbody> What is the problem? Thanks in advance. Dan

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• JFreeChart CategoryPlot overwrites categories

  - by Christine

  Hi, I am new to using JFreeChart and I'm sure there is a simple solution to my problem . . PROBLEM: I have a chart that shows multiple "events types" along the date X axis. The Y axis shows the "event category". My problem is that only the latest date of an event type is shown for each category. In the example below The chart shows data points for Event Type 1 at June 20th(Category 1) and at June 10th (Category 2). I had also added a data point for June 10th, Category 1 but the June 20th point erases it. I think I am misunderstanding how the CategoryPlot is working. Am I using the wrong type of chart? I thought a scatter chart would be the ticket but it only accepts numerical values. I need to have discrete string categories on my Y-axis. If anyone can point me in the right direction, you would really make my day. Thanks for reading! -Christine (The code below works as-is. It is as simple as I could make it) import java.awt.Dimension; import javax.swing.JPanel; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.time.Day; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class EventFrequencyDemo1 extends ApplicationFrame { public EventFrequencyDemo1(String s) { super(s); CategoryDataset categorydataset = createDataset(); JFreeChart jfreechart = createChart(categorydataset); ChartPanel chartpanel = new ChartPanel(jfreechart); chartpanel.setPreferredSize(new Dimension(500, 270)); setContentPane(chartpanel); } private static JFreeChart createChart(CategoryDataset categorydataset) { CategoryPlot categoryplot = new CategoryPlot(categorydataset, new CategoryAxis("Category"), new DateAxis("Date"), new LineAndShapeRenderer(false, true)); categoryplot.setOrientation(PlotOrientation.HORIZONTAL); categoryplot.setDomainGridlinesVisible(true); return new JFreeChart(categoryplot); } private static CategoryDataset createDataset() { DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset(); Day june10 = new Day(10, 6, 2002); Day june20 = new Day(20, 6, 2002); // This event is overwritten by June20th defaultcategorydataset.setValue(new Long(june10.getMiddleMillisecond()), "Event Type 1", "Category 1"); defaultcategorydataset.setValue(new Long(june10.getMiddleMillisecond()), "Event Type 1", "Category 2"); // Overwrites the previous June10th event defaultcategorydataset.setValue(new Long(june20.getMiddleMillisecond()), "Event Type 1", "Category 1"); defaultcategorydataset.setValue(new Long(june20.getMiddleMillisecond()), "Event Type 2", "Category 2"); return defaultcategorydataset; } public static JPanel createDemoPanel() { JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } public static void main(String args[]) { EventFrequencyDemo1 eventfrequencydemo1 = new EventFrequencyDemo1("Event Frequency Demo"); eventfrequencydemo1.pack(); RefineryUtilities.centerFrameOnScreen(eventfrequencydemo1); eventfrequencydemo1.setVisible(true); } }

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• Psychology researcher wants to learn new language

  - by user273347

  I'm currently considering R, matlab, or python, but I'm open to other options. Could you help me pick the best language for my needs? Here are the criteria I have in mind (not in order): Simple to learn. I don't really have a lot of free time, so I'm looking for something that isn't extremely complicated and/or difficult to pick up. I know some C, FWIW. Good for statistics/psychometrics. I do a ton of statistics and psychometrics analysis. A lot of it is basic stuff that I can do with SPSS, but I'd like to play around with the more advanced stuff too (bootstrapping, genetic programming, data mining, neural nets, modeling, etc). I'm looking for a language/environment that can help me run my simpler analyses faster and give me more options than a canned stat package like SPSS. If it can even make tables for me, then it'll be perfect. I also do a fair bit of experimental psychology. I use a canned experiment "programming" software (SuperLab) to make most of my experiments, but I want to be able to program executable programs that I can run on any computer and that can compile the data from the experiments in a spreadsheet. I know python has psychopy and pyepl and matlab has psychtoolbox, but I don't know which one is best. If R had something like this, I'd probably be sold on R already. I'm looking for something regularly used in academe and industry. Everybody else here (including myself, so far) uses canned stat and experiment programming software. One of the reasons I'm trying to learn a programming language is so that I can keep up when I move to another lab. Looking forward to your comments and suggestions. Thank you all for your kind and informative replies. I appreciate it. It's still a tough choice because of so many strong arguments for each language. Python - Thinking about it, I've forgotten so much about C already (I don't even remember what to do with an array) that it might be better for me to start from scratch with a simple program that does what it's supposed to do. It looks like it can do most of the things I'll need it to do, though not as cleanly as R and MATLAB. R - I'm really liking what I'm reading about R. The packages are perfect for my statistical work now. Given the purpose of R, I don't think it's suited to building psychological experiments though. To clarify, what I mean is making a program that presents visual and auditory stimuli to my specifications (hundreds of them in a preset and/or randomized sequence) and records the response data gathered from participants. MATLAB - It's awesome that cognitive and neuro folk are recommending MATLAB, because I'm preparing for the big leap from social and personality psychology to cognitive neuro. The problem is the Uni where I work doesn't have MATLAB licenses (and 3750 GBP for a compiler license is not an option for me haha). Octave looks like a good alternative. PsychToolbox is compatible with Octave, thankfully. SQL - Thanks for the tip. I'll explore that option, too. Python will be the least backbreaking and most useful in the short term. R is well suited to my current work. MATLAB is well suited to my prospective work. It's a tough call, but I think I am now equipped to make a more well-informed decision about where to go next. Thanks again!

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• Receicing POST data in ASP.NET

  - by grast

  Hi, I want to use ASP for code generation in a C# desktop application. To achieve this, I set up a simple host (derived from System.MarshalByRefObject) that processes a System.Web.Hosting.SimpleWorkerRequest via HttpRuntime.ProcessRequest. This processes the ASPX script specified by the incoming request (using System.Net.HttpListener to wait for requests). The client-part is represented by a System.ComponentModel.BackgroundWorker that builds the System.Net.HttpWebRequest and receives the response from the server. A simplified version of my client-part-code looks like this: private void SendRequest(object sender, DoWorkEventArgs e) { // create request with GET parameter var uri = "http://localhost:9876/test.aspx?getTest=321"; var request = (HttpWebRequest)WebRequest.Create(uri); // append POST parameter request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; var postData = Encoding.Default.GetBytes("postTest=654"); var postDataStream = request.GetRequestStream(); postDataStream.Write(postData, 0, postData.Length); // send request, wait for response and store/print content using (var response = (HttpWebResponse)request.GetResponse()) { using (var reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { _processsedContent = reader.ReadToEnd(); Debug.Print(_processsedContent); } } } My server-part-code looks like this (without exception-handling etc.): public void ProcessRequests() { // HttpListener at http://localhost:9876/ var listener = SetupListener(); // SimpleHost created by ApplicationHost.CreateApplicationHost var host = SetupHost(); while (_running) { var context = listener.GetContext(); using (var writer = new StreamWriter(context.Response.OutputStream)) { // process ASP script and send response back to client host.ProcessRequest(GetPage(context), GetQuery(context), writer); } context.Response.Close(); } } So far all this works fine as long as I just use GET parameters. But when it comes to receiving POST data in my ASPX script I run into trouble. For testing I use the following script: // GET parameters are working: var getTest = Request.QueryString["getTest"]; Response.Write("getTest: " + getTest); // prints "getTest: 321" // don't know how to access POST parameters: var postTest1 = Request.Form["postTest"]; // Request.Form is empty?! Response.Write("postTest1: " + postTest1); // so this prints "postTest1: " var postTest2 = Request.Params["postTest"]; // Request.Params is empty?! Response.Write("postTest2: " + postTest2); // so this prints "postTest2: " It seems that the System.Web.HttpRequest object I'm dealing with in ASP does not contain any information about my POST parameter "postTest". I inspected it in debug mode and none of the members did contain neither the parameter-name "postTest" nor the parameter-value "654". I also tried the BinaryRead method of Request, but unfortunately it is empty. This corresponds to Request.InputStream==null and Request.ContentLength==0. And to make things really confusing the Request.HttpMethod member is set to "GET"?! To isolate the problem I tested the code by using a PHP script instead of the ASPX script. This is very simple: print_r($_GET); // prints all GET variables print_r($_POST); // prints all POST variables And the result is: Array ( [getTest] = 321 ) Array ( [postTest] = 654 ) So with the PHP script it works, I can access the POST data. Why does the ASPX script don't? What am I doing wrong? Is there a special accessor or method in the Response object? Can anyone give a hint or even know how to solve this? Thanks in advance.

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• 3D game engine for networked world simulation / AI sandbox

  - by Martin

  More than 5 years ago I was playing with DirectSound and Direct3D and I found it really exciting although it took much time to get some good results with C++. I was a college student then. Now I have mostly enterprise development experience in C# and PHP, and I do it for living. There is really no chance to earn money with serious game development in our country. Each day more and more I find that I miss something. So I decided to spend an hour or so each day to do programming for fun. So my idea is to build a world simulation. I would like to begin with something simple - some human-like creatures that live their life - like Sims 3 but much more simple, just basic needs, basic animations, minimum graphic assets - I guess it won't be a city but just a large house for a start. The idea is to have some kind of a server application which stores the world data in MySQL database, and some client applications - body-less AI bots which simulate movement and some interactions with the world and each other. But it wouldn't be fun without 3D. So there are also 3D clients - I can enter that virtual world and see the AI bots living. When the bot enters visible area, it becomes material - loads a mesh and animations, so I can see it. When I leave, the bots lose their 3d mesh bodies again, but their virtual life still continues. With time I hope to make it like some expandable scriptable sandbox to experiment with various AI algorithms and so on. But I am not intended to create a full-blown MMORPG :D I have looked for many possible things I would need (free and open source) and now I have to make a choice: OGRE3D + enet (or RakNet). Old good C++. But won't it slow me down so much that I won't have fun any more? CrystalSpace. Formally not a game engine but very close to that. C++ again. MOgre (OGRE3D wrapper for .NET) + lidgren (networking library which is already used in some gaming projects). Good - I like C#, it is good for fast programming and also can be used for scripting. XNA seems just a framework, not an engine, so really have doubts, should I even look at XNA Game Studio :( Panda3D - full game engine with positive feedback. I really like idea to have all the toolset in one package, it has good reviews as a beginner-friendly engine...if you know Python. On the C++ side, Panda3D has almost non-existent documentation. I have 0 experience with Python, but I've heard it is easy to learn. And if it will be fun and challenging then I guess I would benefit from experience in one more programming language. Which of those would you suggest, not because of advanced features or good platform support but mostly for fun, easy workflow and expandability, and so I can create and integrate all the components I need - the server with the database, AI bots and a 3D client application?

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• iPad: Mobile Safari, HTML5 <video>, and jquery transitions

  - by justinbach

  I'm building a simple proof-of-concept for an iPad-specific website that would use video transitions to bring users from section to section. For purposes of the proof of concept, each "section" is just an image with a semitransparent content text box positioned above it. There are just 2 sections, "home" and "contact", and they've got a transition video sandwiched between them via z-indexing. The idea for the proof of concept is that clicking on the "home" section causes it to disappear, followed by playback of the transition video, which (upon completion) disappears to reveal the "contact" section. Everything is working fine with this version of the demo on the iPad and on Safari for Windows and OS X. Here's the JS: var myVideo = document.getElementsByTagName('video')[0]; $('document').ready(function() { $('#home').click(function() { $(this).css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); }); }); }); What I'd like to do is use a jQuery fadeOut() effect to fade out the text box prior to starting the video when the "home" section is clicked. The code seems simple enough: $('document').ready(function() { $('#home').click(function() { $('#home-copy').fadeOut('slow', function() { $('#home').css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); $('#home-copy').fadeIn('slow'); }); }); }); }); and it's working exactly as desired on desktop versions of Safari. On the iPad, however, the text box fades out as expected and the home section disappears as well, but the video stubbornly refuses to start playing. I really don't know why this would be the case, but that's what's happening. I'd appreciate any advice you might have! Incidentally, here's the markup: <div id="main-container"> <div id="home-copy"> <h1>Lorem Ipsum Dolor Sit Amet</h1> <p>Donec blandit pharetra luctus. Nam at porttitor odio. Nullam sem orci, venenatis sed pharetra eget, commodo rhoncus quam. Ut euismod vehicula bibendum. Curabitur in magna ante, id fringilla lacus. Nullam id elit eget lacus feugiat porta. Nulla vitae orci vehicula risus sagittis egestas quis sed justo.</p> </div> <div id="home"> <img src="images/home.jpg" width="1152" height="720" /> </div> <video id="transition" src="video/home_to_contact_lo_res.mp4" preload width="1152" height="720"></video> <div id="contact"> <img src="images/contact.jpg" width="1152" height="720" /> </div> </div>

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• Convert extended ASCII characters to it's right presentation using Console.ReadKey() method and ConsoleKeyInfo variable

  - by mishamosher

  Readed about 30 minutes, and didn't found some specific for this in this site. Suppose the following, in C#, console application: ConsoleKeyInfo cki; cki = Console.ReadKey(true); Console.WriteLine(cki.KeyChar.ToString()); //Or Console.WriteLine(cki.KeyChar) as well Console.ReadKey(true); Now, let's put ¿ in the console entry, and asign it to cki via a Console.ReadKey(true). What will be shown isn't the ¿ symbol, the ¨ symbol is the one that's shown instead. And the same happens with many other characters. Examples: ñ shows ¤, ¡ shows -, ´ shows ï. Now, let's take the same code snipplet and add some things for a more Console.ReadLine() like behavior: string data = string.Empty; ConsoleKeyInfo cki; for (int i = 0; i < 10; i++) { cki = Console.ReadKey(true); data += cki.KeyChar; } Console.WriteLine(data); Console.ReadKey(true); The question, how to handle this by the right way, end printing the right characters that should be stored on data, not things like ¨, ¤, -, ï, etc? Please note that I want a solution that works with ConsoleKeyInfo and Console.ReadKey(), not use other variable types, or read methods. EDIT: Because ReadKey() method, that comes from Console namespace, depends on Kernel32.dll and it definetively bad handles the extended ASCII and unicode, it's not an option anymore to just find a valid conversion for what it returns. The only valid way to handle the bad behavior of ReadKey() is to use the cki.Key property that's written in cki = Console.ReadKey(true) execution and apply a switch to it, then, return the right values on dependence of what key was pressed. For example, to handle the Ñ key pressing: string data = string.Empty; ConsoleKeyInfo cki; cki = Console.ReadKey(true); switch (cki.Key) { case ConsoleKey.Oem3: if (cki.Modifiers.ToString().Contains("Shift")) //Could added handlers for Alt and Control, but not putted in here to keep the code small and simple data += "Ñ"; else data += "ñ"; break; } Console.WriteLine(data); Console.ReadKey(true); So, now the question has a wider focus... Which others functions completes it's execution with only one key pressed, and returns what's pressed (a substitute of ReadKey())? I think that there's not such substitutes, but a confirmed answer would be usefull. EDIT2: HA! Found the way, for something I used for so many times Windows 98 SE. There are the codepages, the ones responsibles for how's presented the info in the console. ReadLine() reconfigures the codepage to use properly the extended ASCII and Unicode characters. ReadKey() leaves it in EN-US default (codepage 850). Just use a codepage that prints the characters you want, and that's all. Refer to http://en.wikipedia.org/wiki/Code_page for some of them :) So, for the Ñ key press, the solution is this: Console.OutputEncoding = Encoding.GetEncoding(1252); //Also 28591 is valid for `Ñ` key, and others too string data = string.Empty; ConsoleKeyInfo cki; cki = Console.ReadKey(true); data += cki.KeyChar; Console.WriteLine(data); Console.ReadKey(true); Simple :) Now I'm wrrr with myself... how could I forget those codepages!? Question answered, so, no more about this!

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• DTGridView losing content while scrolling

  - by Wim Haanstra

  I am using DTGridView from the DTKit by Daniel Tull. I implemented it in a very simple ViewController and the test I am doing is to place a button in the last row of the grid, which should add another row to the grid (and therefor moving the button to a row beneath it). The problem is, when I click the button a couple of times and then start scrolling, the grid seems to lose its content. As I am not completly sure this is a bug in the grid, but more in my code, I hope you guys can help me out and track down the bug. First I have my header file, which is quite simple, because this is a test: #import <UIKit/UIKit.h> #import "DTGridView.h" @interface TestController : UIViewController <DTGridViewDelegate, DTGridViewDataSource> { DTGridView* thumbGrid; } @end I declare a DTGridView, which will be my grid, where I want to put content in. Now, my code file: #import "TestController.h" @implementation TestController int rows = 1; - (NSInteger)numberOfRowsInGridView:(DTGridView *)gridView { return rows; } - (NSInteger)numberOfColumnsInGridView:(DTGridView *)gridView forRowWithIndex:(NSInteger)index { if (index == rows - 1) return 1; else return 3; } - (CGFloat)gridView:(DTGridView *)gridView heightForRow:(NSInteger)rowIndex { return 57.0f; } - (CGFloat)gridView:(DTGridView *)gridView widthForCellAtRow:(NSInteger)rowIndex column:(NSInteger)columnIndex { if (rowIndex == rows - 1) return 320.0f; else return 106.6f; } - (DTGridViewCell *)gridView:(DTGridView *)gridView viewForRow:(NSInteger)rowIndex column:(NSInteger)columnIndex { DTGridViewCell *view = [[gridView dequeueReusableCellWithIdentifier:@"thumbcell"] retain]; if (!view) view = [[DTGridViewCell alloc] initWithReuseIdentifier:@"thumbcell"]; if (rowIndex == rows - 1) { UIButton* btnLoadMoreItem = [[UIButton alloc] initWithFrame:CGRectMake(10, 0, 301, 57)]; [btnLoadMoreItem setTitle:[NSString stringWithFormat:@"Button %d", rowIndex] forState:UIControlStateNormal]; [btnLoadMoreItem.titleLabel setFont:[UIFont boldSystemFontOfSize:20]]; [btnLoadMoreItem setBackgroundImage:[[UIImage imageNamed:@"big-green-button.png"] stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0] forState:UIControlStateNormal]; [btnLoadMoreItem addTarget:self action:@selector(selectLoadMoreItems:) forControlEvents:UIControlEventTouchUpInside]; [view addSubview:btnLoadMoreItem]; [btnLoadMoreItem release]; } else { UILabel* label = [[UILabel alloc] initWithFrame:CGRectMake(10,0,100,57)]; label.text = [NSString stringWithFormat:@"%d x %d", rowIndex, columnIndex]; [view addSubview:label]; [label release]; } return [view autorelease]; } - (void) selectLoadMoreItems:(id) sender { rows++; [thumbGrid setNeedsDisplay]; } - (void)viewDidLoad { [super viewDidLoad]; thumbGrid = [[DTGridView alloc] initWithFrame:CGRectMake(0,0, 320, 320)]; thumbGrid.dataSource = self; thumbGrid.gridDelegate = self; [self.view addSubview:thumbGrid]; } - (void)viewDidUnload { [super viewDidUnload]; } - (void)dealloc { [super dealloc]; } @end I implement all the methods for the DataSource, which seem to work. The grid is filled with as many rows as my int 'rows' ( +1 ) has. The last row does NOT contain 3 columns, but just one. That cell contains a button which (when pressed) adds 1 to the 'rows' integer. The problem starts, when it starts reusing cells (I am guessing) and content start disappearing. When I scroll back up, the UILabels I am putting in the cells are gone. Is there some bug, code error, mistake, dumb-ass-move I am missing here? Hope anyone can help.

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• Opening an SQL CE file at runtime with Entity Framework 4

  - by David Veeneman

  I am getting started with Entity Framework 4, and I an creating a demo app as a learning exercise. The app is a simple documentation builder, and it uses a SQL CE store. Each documentation project has its own SQL CE data file, and the user opens one of these files to work on a project. The EDM is very simple. A documentation project is comprised of a list of subjects, each of which has a title, a description, and zero or more notes. So, my entities are Subject, which contains Title and Text properties, and Note, which has Title and Text properties. There is a one-to-many association from Subject to Note. I am trying to figure out how to open an SQL CE data file. A data file must match the schema of the SQL CE database created by EF4's Create Database Wizard, and I will implement a New File use case elsewhere in the app to implement that requirement. Right now, I am just trying to get an existing data file open in the app. I have reproduced my existing 'Open File' code below. I have set it up as a static service class called File Services. The code isn't working quite yet, but there is enough to show what I am trying to do. I am trying to hold the ObjectContext open for entity object updates, disposing it when the file is closed. So, here is my question: Am I on the right track? What do I need to change to make this code work with EF4? Is there an example of how to do this properly? Thanks for your help. My existing code: public static class FileServices { #region Private Fields // Member variables private static EntityConnection m_EntityConnection; private static ObjectContext m_ObjectContext; #endregion #region Service Methods /// <summary> /// Opens an SQL CE database file. /// </summary> /// <param name="filePath">The path to the SQL CE file to open.</param> /// <param name="viewModel">The main window view model.</param> public static void OpenSqlCeFile(string filePath, MainWindowViewModel viewModel) { // Configure an SQL CE connection string var sqlCeConnectionString = string.Format("Data Source={0}", filePath); // Configure an EDM connection string var builder = new EntityConnectionStringBuilder(); builder.Metadata = "res://*/EF4Model.csdl|res://*/EF4Model.ssdl|res://*/EF4Model.msl"; builder.Provider = "System.Data.SqlServerCe"; builder.ProviderConnectionString = sqlCeConnectionString; var entityConnectionString = builder.ToString(); // Connect to the model m_EntityConnection = new EntityConnection(entityConnectionString); m_EntityConnection.Open(); // Create an object context m_ObjectContext = new Model1Container(); // Get all Subject data IQueryable<Subject> subjects = from s in Subjects orderby s.Title select s; // Set view model data property viewModel.Subjects = new ObservableCollection<Subject>(subjects); } /// <summary> /// Closes an SQL CE database file. /// </summary> public static void CloseSqlCeFile() { m_EntityConnection.Close(); m_ObjectContext.Dispose(); } #endregion }

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• CSS not working in ASP.NET

  - by Tux

  Hi, I have created a simple page in HTML which works fine. But when I import that to ASP.NET, the page design clutters up. Here is my Site.Master <%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="Elite.WUI.Site" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title></title> <link rel="stylesheet" type="text/css" href="styles.css" /> </head> <body> <form id="form1" runat="server"> <asp:ContentPlaceHolder ID="headerCPH" runat="server"> <div id="header"> <h1>WUI</h1> </div> <hr /> </asp:ContentPlaceHolder> <asp:ContentPlaceHolder ID="navigationCPH" runat="server"> <div id="navigation"> <ul> <li>Home</li> <li>Users</li> <li>Campaigns</li> <li>Settings</li> </ul> </div> </asp:ContentPlaceHolder> <asp:ContentPlaceHolder ID="contentCPH" runat="server"> </asp:ContentPlaceHolder> </form> </body> </html> my stylesheet styles.css #navigation { float: left; border: 1pt solid; } #navigation ul { list-style-type: none; padding: 5 5 5 5; margin: 0; } #content { margin-left: 9%; border: 1pt solid; padding-left: 5; } and the actual page derived from master page <%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="ABC.aspx.cs" Inherits="Elite.WUI.ABC" %> <asp:Content ID="Content3" ContentPlaceHolderID="contentCPH" runat="server"> <div id="content"> <p>Test content</p> </div> </asp:Content> Here is how it is displayed in Firefox (ver 3.6) As you can see that the border, list-style-type properties are working but margin isn't working. Can anyone tell me what am I doing wrong? I have tested it in Google Chrome but same issue. While the HTML and CSS works fine when there is no ASP.NET i.e. simple .html file.

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• Help deciphering exception details from WebRequestCreator when setting ContentType to "application/json"

  - by Stephen Patten

  Hello, This one is real simple, run this Silverlight4 example with the ContentType property commented out and you'll get back a response from from my service in xml. Now uncomment the property and run it and you'll get an exception similar to this one. System.Net.ProtocolViolationException occurred Message=A request with this method cannot have a request body. StackTrace: at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state) at System.Net.Browser.ClientHttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at com.patten.silverlight.ViewModels.WebRequestLiteViewModel.<MakeCall>b__0(IAsyncResult cb) InnerException: What I am trying to accomplish is just pulling down some JSON formatted data from my wcf endpoint. Can this really be this hard, or is it another classic example of just overlooking something simple. Edit: While perusing SO, I noticed similar posts, like this one Why am I getting ProtocolViolationException when trying to use HttpWebRequest? Thank you, Stephen try { Address = "http://stephenpattenconsulting.com/Services/GetFoodDescriptionsLookup(2100)"; // Get the URI Uri httpSite = new Uri(Address); // Create the request object using the Browsers networking stack // HttpWebRequest wreq = (HttpWebRequest)WebRequest.Create(httpSite); // Create the request using the operating system's networking stack HttpWebRequest wreq = (HttpWebRequest)WebRequestCreator.ClientHttp.Create(httpSite); // http://stackoverflow.com/questions/239725/c-webrequest-class-and-headers // These headers have been set, so use the property that has been exposed to change them // wreq.Headers[HttpRequestHeader.ContentType] = "application/json"; //wreq.ContentType = "application/json"; // Issue the async request. // http://timheuer.com/blog/archive/2010/04/23/silverlight-authorization-header-access.aspx wreq.BeginGetResponse((cb) => { HttpWebRequest rq = cb.AsyncState as HttpWebRequest; HttpWebResponse resp = rq.EndGetResponse(cb) as HttpWebResponse; StreamReader rdr = new StreamReader(resp.GetResponseStream()); string result = rdr.ReadToEnd(); Jounce.Framework.JounceHelper.ExecuteOnUI(() => { Result = result; }); rdr.Close(); }, wreq); } catch (WebException ex) { Jounce.Framework.JounceHelper.ExecuteOnUI(() => { Error = ex.Message; }); } catch (Exception ex) { Jounce.Framework.JounceHelper.ExecuteOnUI(() => { Error = ex.Message; }); } EDIT: This is how the WCF 4 end point is configured, primarily 'adapted' from this link http://geekswithblogs.net/michelotti/archive/2010/08/21/restful-wcf-services-with-no-svc-file-and-no-config.aspx [ServiceContract] public interface IRDA { [OperationContract] IList<FoodDescriptionLookup> GetFoodDescriptionsLookup(String id); [OperationContract] FOOD_DES GetFoodDescription(String id); [OperationContract] FOOD_DES InsertFoodDescription(FOOD_DES foodDescription); [OperationContract] FOOD_DES UpdateFoodDescription(String id, FOOD_DES foodDescription); [OperationContract] void DeleteFoodDescription(String id); } // RESTfull service [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class RDAService : IRDA { [WebGet(UriTemplate = "FoodDescription({id})")] public FOOD_DES GetFoodDescription(String id) { ... } [AspNetCacheProfile("GetFoodDescriptionsLookup")] [WebGet(UriTemplate = "GetFoodDescriptionsLookup({id})")] public IList<FoodDescriptionLookup> GetFoodDescriptionsLookup(String id) { return rda.GetFoodDescriptionsLookup(id); ; } [WebInvoke(UriTemplate = "FoodDescription", Method = "POST")] public FOOD_DES InsertFoodDescription(FOOD_DES foodDescription) { ... } [WebInvoke(UriTemplate = "FoodDescription({id})", Method = "PUT")] public FOOD_DES UpdateFoodDescription(String id, FOOD_DES foodDescription) { ... } [WebInvoke(UriTemplate = "FoodDescription({id})", Method = "DELETE")] public void DeleteFoodDescription(String id) { ... } } And the portion of my web.config that pertains to WCF <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <standardEndpoints> <webHttpEndpoint> <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true" /> </webHttpEndpoint> </standardEndpoints> </system.serviceModel>

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• Code Golf: Finite-state machine!

  - by Adam Matan

  Finite state machine A deterministic finite state machine is a simple computation model, widely used as an introduction to automata theory in basic CS courses. It is a simple model, equivalent to regular expression, which determines of a certain input string is Accepted or Rejected. Leaving some formalities aside, A run of a finite state machine is composed of: alphabet, a set of characters. states, usually visualized as circles. One of the states must be the start state. Some of the states might be accepting, usually visualized as double circles. transitions, usually visualized as directed arches between states, are directed links between states associated with an alphabet letter. input string, a list of alphabet characters. A run on the machine begins at the starting state. Each letter of the input string is read; If there is a transition between the current state and another state which corresponds to the letter, the current state is changed to the new state. After the last letter was read, if the current state is an accepting state, the input string is accepted. If the last state was not an accepting state, or a letter had no corresponding arch from a state during the run, the input string is rejected. Note: This short descruption is far from being a full, formal definition of a FSM; Wikipedia's fine article is a great introduction to the subject. Example For example, the following machine tells if a binary number, read from left to right, has an even number of 0s: The alphabet is the set {0,1}. The states are S1 and S2. The transitions are (S1, 0) -> S2, (S1, 1) -> S1, (S2, 0) -> S1 and (S2, 1) -> S2. The input string is any binary number, including an empty string. The rules: Implement a FSM in a language of your choice. Input The FSM should accept the following input: <States> List of state, separated by space mark. The first state in the list is the start state. Accepting states begin with a capital letter. <transitions> One or more lines. Each line is a three-tuple: origin state, letter, destination state) <input word> Zero or more characters, followed by a newline. For example, the aforementioned machine with 1001010 as an input string, would be written as: S1 s2 S1 0 s2 S1 1 S1 s2 0 S1 s2 1 s2 1001010 Output The FSM's run, written as <State> <letter> -> <state>, followed by the final state. The output for the example input would be: S1 1 -> S1 S1 0 -> s2 s2 0 -> S1 S1 1 -> S1 S1 0 -> s2 s2 1 -> s2 s2 0 -> S1 ACCEPT For the empty input '': S1 ACCEPT For 101: S1 1 -> S1 S1 0 -> s2 s2 1 -> s2 REJECT For '10X': S1 1 -> S1 S1 0 -> s2 s2 X REJECT Prize A nice bounty will be given to the most elegant and short solution. Reference implementation A reference Python implementation will be published soon.

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• C#: Inheritence, Overriding, and Hiding

  - by Rosarch

  I'm having difficulty with an architectural decision for my C# XNA game. The basic entity in the world, such as a tree, zombie, or the player, is represented as a GameObject. Each GameObject is composed of at least a GameObjectController, GameObjectModel, and GameObjectView. These three are enough for simple entities, like inanimate trees or rocks. However, as I try to keep the functionality as factored out as possible, the inheritance begins to feel unwieldy. Syntactically, I'm not even sure how best to accomplish my goals. Here is the GameObjectController: public class GameObjectController { protected GameObjectModel model; protected GameObjectView view; public GameObjectController(GameObjectManager gameObjectManager) { this.gameObjectManager = gameObjectManager; model = new GameObjectModel(this); view = new GameObjectView(this); } public GameObjectManager GameObjectManager { get { return gameObjectManager; } } public virtual GameObjectView View { get { return view; } } public virtual GameObjectModel Model { get { return model; } } public virtual void Update(long tick) { } } I want to specify that each subclass of GameObjectController will have accessible at least a GameObjectView and GameObjectModel. If subclasses are fine using those classes, but perhaps are overriding for a more sophisticated Update() method, I don't want them to have to duplicate the code to produce those dependencies. So, the GameObjectController constructor sets those objects up. However, some objects do want to override the model and view. This is where the trouble comes in. Some objects need to fight, so they are CombatantGameObjects: public class CombatantGameObject : GameObjectController { protected new readonly CombatantGameModel model; public new virtual CombatantGameModel Model { get { return model; } } protected readonly CombatEngine combatEngine; public CombatantGameObject(GameObjectManager gameObjectManager, CombatEngine combatEngine) : base(gameObjectManager) { model = new CombatantGameModel(this); this.combatEngine = combatEngine; } public override void Update(long tick) { if (model.Health <= 0) { gameObjectManager.RemoveFromWorld(this); } base.Update(tick); } } Still pretty simple. Is my use of new to hide instance variables correct? Note that I'm assigning CombatantObjectController.model here, even though GameObjectController.Model was already set. And, combatants don't need any special view functionality, so they leave GameObjectController.View alone. Then I get down to the PlayerController, at which a bug is found. public class PlayerController : CombatantGameObject { private readonly IInputReader inputReader; private new readonly PlayerModel model; public new PlayerModel Model { get { return model; } } private float lastInventoryIndexAt; private float lastThrowAt; public PlayerController(GameObjectManager gameObjectManager, IInputReader inputReader, CombatEngine combatEngine) : base(gameObjectManager, combatEngine) { this.inputReader = inputReader; model = new PlayerModel(this); Model.Health = Constants.PLAYER_HEALTH; } public override void Update(long tick) { if (Model.Health <= 0) { gameObjectManager.RemoveFromWorld(this); for (int i = 0; i < 10; i++) { Debug.WriteLine("YOU DEAD SON!!!"); } return; } UpdateFromInput(tick); // .... } } The first time that this line is executed, I get a null reference exception: model.Body.ApplyImpulse(movementImpulse, model.Position); model.Position looks at model.Body, which is null. This is a function that initializes GameObjects before they are deployed into the world: public void Initialize(GameObjectController controller, IDictionary<string, string> data, WorldState worldState) { controller.View.read(data); controller.View.createSpriteAnimations(data, _assets); controller.Model.read(data); SetUpPhysics(controller, worldState, controller.Model.BoundingCircleRadius, Single.Parse(data["x"]), Single.Parse(data["y"]), bool.Parse(data["isBullet"])); } Every object is passed as a GameObjectController. Does that mean that if the object is really a PlayerController, controller.Model will refer to the base's GameObjectModel and not the PlayerController's overriden PlayerObjectModel?

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• Firefox not running jQuery for XHTML output

  - by ScottSEA

  Okay, I did a crappy job of describing the issue in my previous post. I think the discussion got sidetracked from the core issue - so I'm going to try again. Mea Culpa to Elzo Valugi about the aforementioned thread. I have an XML file: <?xml version="1.0" encoding="utf-8"?> <?xml-stylesheet type="text/xsl" href="wtf.xsl"?> <Paragraphs> <Paragraph>Hi</Paragraph> </Paragraphs> Simple enough. I also have a stylesheet to create XHTML output: <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns="http://www.w3.org/1999/xhtml" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="xml" indent="yes" doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN" omit-xml-declaration="yes"/> <xsl:template match="/*"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>FF-JS-XHTML WTF</title> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="wtf.js"></script> </head> <body> <xsl:apply-templates /> </body> </html> </xsl:template> <xsl:template match="Paragraph"> <p> <xsl:apply-templates /> </p> </xsl:template> </xsl:stylesheet> Last but not least, I have the following jQuery in toto (wtf.js, from the script tag in the stylesheet): $(function() { alert('Hiya!'); $('<p>Hello</p>').appendTo('body'); }); Extremely simple, but sufficient for the demonstration. When I run this in Internet Explorer, I get the alert 'Hiya!' as well as the expected: Hi Hello but when I run it in Firefox (3.0.1), I still get the alert, but the jQuery does not insert the paragraph into the DOM, and I just get this: Hi If I change the stylesheet to method="html" it works fine, and I get (along with the alert): Hi Hello Why doesn't Firefox run the jQuery with an XHTML document? Has anyone any experience with this problem? EDIT: ADDITIONAL INFO I can successfully insert elements into the documents this way in Firefox (method="xml"): var frag = document.createDocumentFragment(); var p = document.createElement('p'); p.appendChild(document.createTextNode('Ipsum Lorem')); frag.appendChild(p); $('body').append(frag); but I'm running into a similar problem with the .remove() method. It is looking more and more that Firefox doesn't construct a DOM from XML that jQuery can relate to, or somesuch.

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• Representing game states in Tic Tac Toe

  - by dacman

  The goal of the assignment that I'm currently working on for my Data Structures class is to create a of Quantum Tic Tac Toe with an AI that plays to win. Currently, I'm having a bit of trouble finding the most efficient way to represent states. Overview of current Structure: AbstractGame Has and manages AbstractPlayers (game.nextPlayer() returns next player by int ID) Has and intializes AbstractBoard at the beginning of the game Has a GameTree (Complete if called in initialization, incomplete otherwise) AbstractBoard Has a State, a Dimension, and a Parent Game Is a mediator between Player and State, (Translates States from collections of rows to a Point representation Is a StateConsumer AbstractPlayer Is a State Producer Has a ConcreteEvaluationStrategy to evaluate the current board StateTransveralPool Precomputes possible transversals of "3-states". Stores them in a HashMap, where the Set contains nextStates for a given "3-state" State Contains 3 Sets -- a Set of X-Moves, O-Moves, and the Board Each Integer in the set is a Row. These Integer values can be used to get the next row-state from the StateTransversalPool SO, the principle is Each row can be represented by the binary numbers 000-111, where 0 implies an open space and 1 implies a closed space. So, for an incomplete TTT board: From the Set<Integer> board perspective: X_X R1 might be: 101 OO_ R2 might be: 110 X_X R3 might be: 101, where 1 is an open space, and 0 is a closed space From the Set<Integer> xMoves perspective: X_X R1 might be: 101 OO_ R2 might be: 000 X_X R3 might be: 101, where 1 is an X and 0 is not From the Set<Integer> oMoves perspective: X_X R1 might be: 000 OO_ R2 might be: 110 X_X R3 might be: 000, where 1 is an O and 0 is not Then we see that x{R1,R2,R3} & o{R1,R2,R3} = board{R1,R2,R3} The problem is quickly generating next states for the GameTree. If I have player Max (x) with board{R1,R2,R3}, then getting the next row-states for R1, R2, and R3 is simple.. Set<Integer> R1nextStates = StateTransversalPool.get(R1); The problem is that I have to combine each one of those states with R1 and R2. Is there a better data structure besides Set that I could use? Is there a more efficient approach in general? I've also found Point<-State mediation cumbersome. Is there another approach that I could try there? Thanks! Here is the code for my ConcretePlayer class. It might help explain how players produce new states via moves, using the StateProducer (which might need to become StateFactory or StateBuilder). public class ConcretePlayerGeneric extends AbstractPlayer { @Override public BinaryState makeMove() { // Given a move and the current state, produce a new state Point playerMove = super.strategy.evaluate(this); BinaryState currentState = super.getInGame().getBoard().getState(); return StateProducer.getState(this, playerMove, currentState); } } EDIT: I'm starting with normal TTT and moving to Quantum TTT. Given the framework, it should be as simple as creating several new Concrete classes and tweaking some things.

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• Rx IObservable buffering to smooth out bursts of events

  - by Dan

  I have an Observable sequence that produces events in rapid bursts (ie: five events one right after another, then a long delay, then another quick burst of events, etc.). I want to smooth out these bursts by inserting a short delay between events. Imagine the following diagram as an example: Raw: --oooo--------------ooooo-----oo----------------ooo| Buffered: --o--o--o--o--------o--o--o--o--o--o--o---------o--o--o| My current approach is to generate a metronome-like timer via Observable.Interval() that signals when it's ok to pull another event from the raw stream. The problem is that I can't figure out how to then combine that timer with my raw unbuffered observable sequence. IObservable.Zip() is close to doing what I want, but it only works so long as the raw stream is producing events faster than the timer. As soon as there is a significant lull in the raw stream, the timer builds up a series of unwanted events that then immediately pair up with the next burst of events from the raw stream. Ideally, I want an IObservable extension method with the following function signature that produces the bevaior I've outlined above. Now, come to my rescue StackOverflow :) public static IObservable<T> Buffered(this IObservable<T> src, TimeSpan minDelay) PS. I'm brand new to Rx, so my apologies if this is a trivially simple question... 1. Simple yet flawed approach Here's my initial naive and simplistic solution that has quite a few problems: public static IObservable<T> Buffered<T>(this IObservable<T> source, TimeSpan minDelay) { Queue<T> q = new Queue<T>(); source.Subscribe(x => q.Enqueue(x)); return Observable.Interval(minDelay).Where(_ => q.Count > 0).Select(_ => q.Dequeue()); } The first obvious problem with this is that the IDisposable returned by the inner subscription to the raw source is lost and therefore the subscription can't be terminated. Calling Dispose on the IDisposable returned by this method kills the timer, but not the underlying raw event feed that is now needlessly filling the queue with nobody left to pull events from the queue. The second problem is that there's no way for exceptions or end-of-stream notifications to be propogated through from the raw event stream to the buffered stream - they are simply ignored when subscribing to the raw source. And last but not least, now I've got code that wakes up periodically regardless of whether there is actually any work to do, which I'd prefer to avoid in this wonderful new reactive world. 2. Way overly complex appoach To solve the problems encountered in my initial simplistic approach, I wrote a much more complicated function that behaves much like IObservable.Delay() (I used .NET Reflector to read that code and used it as the basis of my function). Unfortunately, a lot of the boilerplate logic such as AnonymousObservable is not publicly accessible outside the system.reactive code, so I had to copy and paste a lot of code. This solution appears to work, but given its complexity, I'm less confident that its bug free. I just can't believe that there isn't a way to accomplish this using some combination of the standard Reactive extensions. I hate feeling like I'm needlessly reinventing the wheel, and the pattern I'm trying to build seems like a fairly standard one.

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• JPA IndirectSet changes not reflected in Spring frontend

  - by Jon

  I'm having an issue with Spring JPA and IndirectSets. I have two entities, Parent and Child, defined below. I have a Spring form in which I'm trying to create a new Child and link it to an existing Parent, then have everything reflected in the database and in the web interface. What's happening is that it gets put into the database, but the UI doesn't seem to agree. The two entities that are linked to each other in a OneToMany relationship like so: @Entity @Table(name = "parent", catalog = "myschema", uniqueConstraints = @UniqueConstraint(columnNames = "ChildLinkID")) public class Parent { private Integer id; private String childLinkID; private Set<Child> children = new HashSet<Child>(0); @Id @GeneratedValue(strategy = IDENTITY) @Column(name = "id", unique = true, nullable = false) public Integer getId() { return this.id; } public void setId(Integer id) { this.id = id; } @Column(name = "ChildLinkID", unique = true, nullable = false, length = 6) public String getChildLinkID() { return this.childLinkID; } public void setChildLinkID(String childLinkID) { this.childLinkID = childLinkID; } @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "parent") public Set<Child> getChildren() { return this.children; } public void setChildren(Set<Child> children) { this.children = children; } } @Entity @Table(name = "child", catalog = "myschema") public class Child extends private Integer id; private Parent parent; @Id @GeneratedValue(strategy = IDENTITY) @Column(name = "id", unique = true, nullable = false) public Integer getId() { return this.id; } public void setId(Integer id) { this.id = id; } @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "ChildLinkID", referencedColumnName = "ChildLinkID", nullable = false) public Parent getParent() { return this.parent; } public void setParent(Parent parent) { this.parent = parent; } } And of course, assorted simple properties on each of them. Now, the problem is that when I edit those simple properties from my Spring interface, everything works beautifully. I can persist new entities of these types and they'll appear when using the JPATemplate to do a find on, say, all Parents (getJpaTemplate().find("select p from Parent p")) or on individual entities by ID or another property. The problem I'm running into is that now, I'm trying to create a new Child linked to an existing Parent through a link from the Parent's page. Here's the important bits of the Controller (note that I've placed the JPA foo in the controller here to make it clearer; the actual JpaDaoSupport is actually in another class, appropriately tiered): protected Object formBackingObject(HttpServletRequest request) throws Exception { String parentArg = request.getParameter("parent"); int parentId = Integer.parseInt(parentArg); Parent parent = getJpaTemplate().find(Parent.class, parentId); Child child = new Child(); child.setParent(parent); NewChildCommand command = new NewChildCommand(); command.setChild(child); return command; } protected ModelAndView onSubmit(Object cmd) throws Exception { NewChildCommand command = (NewChildCommand)cmd; Child child = command.getChild(); child.getParent().getChildren().add(child); getJpaTemplate().merge(child); return new ModelAndView(new RedirectView(getSuccessView())); } Like I said, I can run through the form and fill in the new values for the Child -- the Parent's details aren't even displayed. When it gets back to the controller, it goes through and saves it to the underlying database, but the interface never reflects it. Once I restart the app, it's all there and populated appropriately. What can I do to clear this up? I've tried to call extra merges, tried refreshes (which gave a transaction exception), everything short of just writing my own database access code. I've made sure that every class has an appropriate equals() and hashCode(), have full JPA debugging on to see that it's making appropriate SQL calls (it doesn't seem to make any new calls to the Child table) and stepped through in the debugger (it's all in IndirectSets, as expected, and between saving and displaying the Parent the object takes on a new memory address). What's my next step?

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• Trouble displaying an object in WPF

  - by Scott

  I'm so new to this that I can't even phrase the question right... Anyway, I'm trying to do something very simple and have been unable to figure it out. I have the following class: public class Day : Control, INotifyPropertyChanged { public static readonly DependencyProperty DateProperty = DependencyProperty.Register("Date", typeof(int), typeof(Day)); public int Date { get { return (int)GetValue(DateProperty); } set { SetValue(DateProperty, value); if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("Date")); } } } public static readonly DependencyProperty DayNameProperty = DependencyProperty.Register("DayName", typeof(String), typeof(Day)); public String DayName { get { return (String)GetValue(DayNameProperty); } set { SetValue(DayNameProperty, value); if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("DayName")); } } } static Day() { DefaultStyleKeyProperty.OverrideMetadata(typeof(Day), new FrameworkPropertyMetadata(typeof(Day))); } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; #endregion } I've learned that you can't call a constructor that has parameters in XAML so the only way to actually set some data for this class is through the two properties, DayName and Date. I created a ControlTemplate for Day which is as follows: <Style TargetType="{x:Type con:Day}"> <Setter Property="MinHeight" Value="20"/> <Setter Property="MinWidth" Value="80"/> <Setter Property="Height" Value="20"/> <Setter Property="Width" Value="80"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type con:Day}"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Rectangle Grid.ColumnSpan="2" x:Name="rectHasEntry" Fill="WhiteSmoke"/> <TextBlock Grid.Column="0" x:Name="textBlockDayName" Text="{TemplateBinding DayName}" FontFamily="Junction" FontSize="11" Background="Transparent" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,2,0,0"/> <TextBlock Grid.Column="1" x:Name="textBlockDate" Text="{TemplateBinding Date}" FontFamily="Junction" FontSize="11" Background="Transparent" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,2,0,0"/> <Rectangle Grid.ColumnSpan="2" x:Name="rectMouseOver" Fill="#A2C0DA" Opacity="0" Style="{StaticResource DayRectangleMouseOverStyle}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> I then render it on screen in my MainWindow thusly: <Window x:Class="WPFControlLibrary.TestHarness.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:con="clr-namespace:WPFControlLibrary.Calendar;assembly=WPFControlLibrary" Title="MainWindow" Height="500" Width="525" WindowStartupLocation="CenterScreen"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="80"/> </Grid.ColumnDefinitions> <con:Day Grid.Column="1" Height="20" Width="80" DayName="Mon" Date="1"/> </Grid> And what I actually see is, well, nothing. If I put my cursor on the con:Day line of the XAML it'll highlight the correctly sized rectangle in the window but I don't see "Mon" on the left side of the rectangle and "1" on the right. What am I doing wrong? I suspect it's something simple but I'll be darned if I'm seeing it. My ultimate goal is to group a bunch of the Day controls within a Month control, which is then contained in a Year control as I'm trying to make a long Calendar Bar that lets you navigate through the months and years, while clicking on a Day would display any information saved on that date. But I can't even get the Day part to display independent of anything else so I'm a long way from the rest of the functionality. Any help would be greatly appreciated.

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