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• How to get IPv6 public address on Windows XP machine?

  - by SR Dusad

  C:\>netsh netsh>interface ipv6 netsh interface ipv6>show addres Querying active state... Interface 6: Local Area Connection 3 Addr Type DAD State Valid Life Pref. Life Address --------- ---------- ------------ ------------ ----------------------------- Temporary Preferred 6d23h38m55s 23h36m8s 2001:db8:1dde:1:6d16:9d1:b1ec:2245 Public Preferred 29d23h59m30s 6d23h59m30s 2001:db8:1dde:1:201:2ff:fe29:23b6 Link Preferred infinite infinite fe80::201:2ff:fe29:23b6 The books says, after IPv6 is enabled on Windows XP, auto configure will give it 3 addresses, a Link, a Public, and a Temporary one. But on my computer, I could only see Link, what was the problem? I used the Windows XP machine. But when I try it on Windows 2007 it works fine and show me a public address. How to get public IPv6 address from Windows XP machine? on my Windows XP machine IPv6 is enabled but when I use the command tracert6 www.kame.net it shows "No route to destination". Why?

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• modx revo snippet variable in query

  - by Meddie

  I noticed something weird when using a query in a snippet. When I have a query like this: $sql = 'SELECT * FROM table WHERE colomn = ' . $variable; And I echo $sql, the query reads: SELECT * FROM table WHERE colomn = <code class="php plain">2</code> .. wich will result in an error because the sql is no longer valid. So for now I use strip_tags to remove the code tag, but I find it not a very clean method. I couldnt find anything about this, so maybe someone can shed some light on this for me?

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• How can I change what happens when "enter" key is pressed on a DataGridView?

  - by SO give me back my rep

  when I am editing a cell and press enter the next row is automatically selected, I want to stay with the current row... I want to happen nothing except the EndEdit. I have this: private void dtgProductos_CellEndEdit(object sender, DataGridViewCellEventArgs e) { dtgProductos[e.ColumnIndex, e.RowIndex].Selected = true; //this line is not working var index = dtgProductos.SelectedRows[0].Cells.IndexOf(dtgProductos.SelectedRows[0].Cells[e.ColumnIndex]); switch (index) { case 2: { dtgProductos.SelectedRows[0].Cells[4].Selected = true; dtgProductos.BeginEdit(true); } break; case 4: { dtgProductos.SelectedRows[0].Cells[5].Selected = true; dtgProductos.BeginEdit(true); } break; case 5: { btnAddProduct.Focus(); } break; default: break; } } so when I edit a row that is not the last one I get this error: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.

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• Asp.net regularexpressionvalidator fires even when CausesValidation="false"

  - by Rohit

  I have a regularexpression validator which validates a valid email. I have two buttons on my form. Submit and undo. On undo, we are reverting the page state to default submit has it validationgroup set while undo doesnot have any validationgroup and CausesValidation="false". Now when i navigate to page and enter invalid emailaddress,i directly click undo. the validator fires and stops my page from posting.however if i press tab and navigate to other control and then click undo,the validator shows error message but posts back and furthur proessing is done. This is very strange and i want the page to postback without any error message when i click undo.how to achieve it.

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• Worked Example of Digital Signature Algorithm

  - by drelihan

  Hi Folks, Does anybody have a DSA worked example with simple values on how to calculate r,s and verify v == r. As this standard has been around awhile and is implemented in librarys e.g. the Java Cryptography Extension I'm finding it very hard to find an example of how the algorithm works. Compute r=(gk mod p) mod q Compute s=(k-1 * (x * r + i)) mod q Verifying a signature; again i is the input, and (r,s) is the signature. u1 = (s-1 * i) mod q u2 = (s-1 * r) mod q v = ((gu1 * yu2) mod p) mod q If v equals r, the signature is valid. Thanks,

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• Threading multiple WebBrowser in VB .net

  - by Code_Seeker

  I'm building a multiple webbrowser inside tabs( 1 predefine webbrowser control per tab) and I want them all to load at the same time or other words must run in thread. Unfortunately I feel a valid fact came from the error message that this is something not possible. Pls help me to check my simple program code below and its error in case i tried releasing 2 webbrowser controls but when I leave it to single web browser control it works fine. Any workaround? Imports System.Threading Public Class Form1 Dim mythread1 As Thread Dim mythread2 As Thread Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load mythread1 = New Thread(AddressOf mysub1) mythread2 = New Thread(AddressOf mysub2) mythread1.IsBackground = True mythread2.IsBackground = True mythread1.Start() mythread2.Start() End Sub Public Sub mysub1() Dim HTML As String WebBrowser1.Navigate("about:blank") mythread1.Abort() End Sub Public Sub mysub2() WebBrowser2.Navigate("about:blank") mythread2.Abort() End Sub

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• What's the standard behaviour for an out parameter when a TryXxxx method returns false?

  - by Matt Lacey

  Assuming a method with the following signature bool TryXxxx(object something, out int toReturn) What is it acceptable for toReturn to be if TryXxxx returns false? In that it's infered that toReturn should never be used if TryXxxx fails does it matter? If toReturn was a nulable type, then it would make sense to return null. But int isn't nullable and I don't want to have to force it to be. If toReturn is always a certain value if TryXxxx fails we risk having the position where 2 values could be considered to indicate the same thing. I can see this leading to potential possible confusion if the 'default' value was returned as a valid response (when TryXxxx returns true). From an implementation point if view it looks like having toReturn be a[ny] value is easiest, but is there anything more important to consider?

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• How can I construct and parse a JSON string in Scala / Lift

  - by David Carlson

  I am using JsonResponse to send some JSON to the client. To test that I am sending the correct response it seemed natural to me to parse the resulting JSON and validate against a data structure rather than comparing substrings. But for some reason I am unable to parse the JSON I just constructed: def tryToParse = { val jsObj :JsObj = JsObj(("foo", "bar")); // 1) val jsObjStr :String = jsObj.toJsCmd // 2) jsObjStr is: "{'foo': 'bar'}" val result = JSON.parseFull(jsObjStr) // 3) result is: None // the problem seems to be caused by the quotes: val works = JSON.parseFull("{\"foo\" : \"bar\"}") // 4) result is: Some(Map(foo -> bar)) val doesntWork = JSON.parseFull("{'foo' : 'bar'}") // 5) result is: None } How do I programmatically construct a valid JSON message in Scala/Lift that can also be parsed again?

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• How to debug Fluent nHibernate

  - by Matt Thrower

  Hi, I'm having some trouble with Fluent nHibernate. I added a column to a table and I thought I'd correctly changed the mappings and the connected data objects to correctly reflect this. However when I tried to run my application again I kept getting this error: System.Data.SqlClient.SqlException: Invalid column name 'Workflow_id'. I really couldn't see what the problem was with the changes I'd made so I reverted back to the original versions of the mapping and data object files from source control and removed the offending column from the database. But I'm still getting the same error. I'd like some advice on how to debug this. The SQL that gets reported on the error is semi-nonsensical: SELECT regions0_.Page_id as Page5_1_, regions0_.Id as Id1_, regions0_.Id as Id27_0_, regions0_.RegionId as RegionId27_0_, regions0_.RegionTemplate_id as RegionTe3_27_0_, regions0_.Workflow_id as Workflow4_27_0_ FROM [Region] regions0_ WHERE regions0_.Page_id=? And it won't execute as valid SQL anyway. Any ideas as to where to go from here?

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• I want to run the examples of QtOpenCl, i.e. Qt in OpenCl. Installation and setup help?

  - by Skkard

  The thing is I have to run the OpenCl examples, as given here:http://labs.trolltech.com/blogs/2010/04/07/using-opencl-with-qt/. The problem is that I have no clue where to start. I downloaded the source for QtOpenCl but it needs a valid OpenCl installation. I have Qt installed already. How do I install OpenCl? I don't have a GPU at home unfortunately, and need to implement it on my CPU for now. I have to later give a presentation where I will be supplied a system with a GPU. How do I go about installing OpenCl? Thanks you.

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• Using unless in rails uniqueness validation

  - by dunxd

  I am just starting out in Rails, and trying to develop a simple application. I need to validate three values submitted to the application - each must meet the same validation criteria. The validation is pretty simple: Value is valid if unqiue, null or equal to "p" or "d". The following gets me halfway there: validates_uniqueness_of :value1, :value2, :value3, :allow_nil => true I think I can use :unless to check whether the value is either "p" or "d", however I can't figure out how. I guess I am trying to combine validates_uniqueness_of with validates_inclusion_of. Any suggestions?

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• Parenthesis operator in C. What is the effect in the following code

  - by Andre

  Hi everyone, I was playing with a macro to enable/disable traces when I came out with the following code when the macro is disabled: int main { ("Hello world"); } This code is valid and I got the desired effect (nothing happens when the macro is disabled) but I couldn't figure out what exactly is happening. Is the compiler seeing the parenthesis as a "nameless" method declaration? To make it clearer the code is : #ifdef TRACE #define trace printf("%s %d -> ",__FILE__, __LINE__);printf else #define trace #endif int main { trace("Hello world"); } Thanks in advance.

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• Foo f = Foo(); // no matching function for call to 'Foo::Foo(Foo)' ... huh?!

  - by Kyle

  class Foo { public: explicit Foo() {} explicit Foo(Foo&) {} }; Foo d = Foo(); error: no matching function for call to 'Foo::Foo(Foo)' I tried changing Foo(Foo&) to Foo(Foo) as the error suggests, which AFAIK is not a valid constructor, and sure enough I get: error: invalid constructor; you probably meant ‘Foo (const Foo&)’ What gives? How do I resolve this? (This is on GCC by the way)

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• htpasswd, secure specific files in zend framework

  - by AKFourSeven

  Hi I have been bashing my head against the wall with this riddle and cannot find the way to solve this. I would like to secure couple of files to restrict access to certain pages but my attempts so far are unsuccessful. I do not want to use Zend Auth as it is a very small web site doing simple stuff. Here is a sample of what I have done: AuthUserFile /path/to/my/.htpasswd AuthName "Admin Restriction" AuthType Basic <Files file.phtml> require valid-user </Files> Is there any way to achieve this ?

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• C++ Beginner - Best way to read 3 consecutive values from the command line?

  - by Francisco P.

  Hello everyone, I am writing a text-based Scrabble implementation for a college project. The specification states that the user's position input must be read from single line, like this: Coordinates of the word's first letter and orientation (<A – P> <1 – 15> <H ou V>): G 5 H G 5 H is the user's input for that particular example. The order, as shown, must be char int char. What is the best way to read the user's input? cin >> row >> column >> orientation will cause crashes if the user screws up. A getline and a subsequent string parser are a valid solution, but represent a bit of work. Is there another, better, way to do this, that I am missing? Thanks for your time!

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• Flex chart display with no datapoint

  - by Shah Al

  I need to display price of item for every date in the month. The chart can be Bar chart or plot chart. Question: Suppose there is no data available for 01/15/2010 then, Is there a way to display (01/15/2010) on x axis but no (bar or plot point) corresponding y axis point ? i.e. there will be a empty space between 2 bars or plot points. Currently i am using 0 , But 0 is a valid value. Let me know if such a display is possible.

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• Is it possible to do have Capistrano do a checkout over a reverse SSH tunnel?

  - by James A. Rosen

  I am developing an application that resides on a public host but whose source I must keep in a Git repository behind a corporate firewall. I'm getting very tired of the slowness of deploying via scp (copying the whole repository and shipping it over SSH on each deploy) and would like to have the remote host simply do a git pull to update. The problem is that the firewall prohibits incoming SSH connections. Would it be possible for me to set up an SSH tunnel from my computer to the deployment computer and use my repository as the source for the git pull? After all, git is distributed, so my copy is just as valid a repository as the central one. If this is possible, what would the tunnel command and the Capistrano configuration be? I think the tunnel will look something like ssh -R something:deployserver.com:something [email protected]

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• iPhone Web Appication development and deployment

  - by yakub_moriss

  Hi,All I haven't develop any iPhone Web Application ever...so i am little bit confuse about that. I want to build a Web Application for iPhone which will be made using(CSS+JavaScript). I read some where that no approval is required for iPhone Web Application. is it correct ? And if i have made my iPhone Web Application (using CSS+JavaScript)and uploaded at my server. and if i want to open it in UIWebView using iPhone SDK simply... is this Application is valid for iPhone Web Application portal https://adcweb.apple.com/iphone/index.php or not ? how can end users get the Application on their iPhone after submiting to the portal... Thanks in advance...

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• [Jquery Validation Plugin]How to conditionally execute a jquery validation?

  - by Pandiya Chendur

  I am validating form using jquery validation plugin...... rules: { Name: "required", MobileNo: { required: true, minlength: 10, remote: '<%=Url.Action("getClientMobNo", "Clients") %>' }, Address: "required" }, messages: { Name: "please provide a client name", MobileNo: { required: "Please provide a mobile phone no", rangelength: jQuery.format("Enter at least {0} characters"), remote: jQuery.format("This MobileNo is already in use") }, Address: "please provide client address" }, This works pretty well on add form validation but i use the same form for edit here they can use the same mobile no,but my plugin validates that mobileno saying there is already a mobileno... But how to execute remote attribute based on a condition, MobileNo: { required: true, minlength: 10, if($("#HfId").val() == ""){ remote: '<%=Url.Action("getClientMobNo", "Clients") %>' } }, Is this a valid jquery conditional validation statement.... How to skip remote attribute based on a condition....

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• PHP SQL Form Insert

  - by Prateek Sachan

  I've developed a form that inserts many things into the database. But somehow, when the page is filled up; it inserts only the user_password that too of the database admin. here is the code. Any help would be great. Invalid Name: We want names with more than 3 letters. Invalid E-mail: Type a valid e-mail please. Passwords are invalid: Passwords doesnt match or are invalid! Please enter your contact number. Please enter your age Congratulations! All fields are OK ;)

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• Trying to open a excel template and rename or save to new location

  - by JPJedi

  I get the following error message when I try the following: Dim XL As New Microsoft.Office.Interop.Excel.Application XL.Visible = True XL.Workbooks.Open(XLTemplatePath) XL.SaveWorkspace(XLSaveReportPath) XL.Workbooks.Close() XL.Workbooks.Open(XLSaveReportPath) "Excel cannot open the file 'ContactReports.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file." What I would like to do is Open a excel file that is the XLTemplatePath and the either rename or save the file at the XLSaveReportPath and then use that renamed/saved file to fill the report out. I am using Visual Studio 2008 in VB.NET

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• Get the highest odds from the last update

  - by Frankie Yale

  I have these tables in a PostgreSQL database: bookmakers ----------------------- | id | name | ----------------------- | 1 | Unibet | ----------------------- | 2 | 888 | ----------------------- odds --------------------------------------------------------------------- | id | odds_type | odds_index | bookmaker_id | created_at | --------------------------------------------------------------------- | 1 | 1 | 1.55 | 1 | 2012-06-02 10:30 | --------------------------------------------------------------------- | 2 | 2 | 3.22 | 2 | 2012-06-02 10:30 | --------------------------------------------------------------------- | 3 | X | 3.00 | 1 | 2012-06-02 10:30 | --------------------------------------------------------------------- | 4 | 2 | 1.25 | 1 | 2012-05-27 09:30 | --------------------------------------------------------------------- | 5 | 1 | 2.30 | 2 | 2012-05-27 09:30 | --------------------------------------------------------------------- | 6 | X | 2.00 | 2 | 2012-05-27 09:30 | --------------------------------------------------------------------- What I am trying to query is the following: Give me the 1/X/2 odds from the latest update (created_at) from ALL bookmakers and from that last update, give me the highest odds for each odds_type ('1', '2', 'X'). On my website I display them as: Best odds right now: 1 | X | 2 -------------------- 2.30 | 3.00 | 3.22 I have to first get the latest, because the odds from the update from yesterday are no longer valid. Then from that last update, I have - in this case - 2 odds from 2 different bookmakers, so I need to get the best one for type '1','2','X'. Pseudo SQL would be something like: SELECT MAX(odds_index) WHERE odds_type = '1' ORDER BY created_at DESC, odds_index DESC But that doesn't work, because I would always get the latest odds (and not the highest/best from those latest) I hope I'm making sense.

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• I need to generate credit card surrogates (tokens) that are format preserving.

  - by jammer59

  For an eCommerce application I need to take a credit card and use the real card for passing through to a payment gateway but I need to store, and return to the transaction initiator, a surrogate that is format preserving. Specifically, this means: 1) The number of digits in the surrogate is the same as the real card number (PAN). 2) The issuer type part of the card -- the initial 1,2 or 4 digits remains the same in the surrogate as in the original PAN. 3) The final 4 digits of the surrogate remain the same (for customer service purposes.) 4) The surrogate passes the Luhn mod10 check for a syntactially valid credit card. I can readily handle requirements 1-3 but #4 has me completely stumped! The final implementation will be either t-sql or c#. Any ideas?

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• Store return value of function in reference C++

  - by Ruud v A

  Is it valid to store the return value of an object in a reference? class A { ... }; A myFunction() { A myObject; return A; } //myObject goes out of scope here void mySecondFunction() { A& mySecondObject = myFunction(); } Is it possible to do this in order to avoid copying myObject to mySecondObject? myObject is not needed anymore and should be exactly the same as mySecondObject so it would in theory be faster just to pass ownership of the object from one object to another. (This is also possible using boost shared pointer but that has the overhead of the shared pointer.) Thanks in advance.

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• Question About Abstract Classes?

  - by IbrarMumtaz

  URL: Link (1) According to this wesbite .. you cannot implement Abstract classes but derive from them. This makes sense and I have read this many times. Like an interface, you cannot implement an instance of an abstract class, however you can implement methods, fields, and properties in the abstract class that can be used by the child class. But on MSDN URL: TextWriter CLass on MSDN TextWriter is an abstract class but it has two constructors defined ... and according to the MS 70-536 book, the following statement is valid: TextWriter tw = new File.CreateText("myFile.Txt") The static file class and it's CreateText method is fine by me as I have studied it on MSDN but can somebody explain this little contradiction I have found? Surely I am not the first? Why is instantaion of base abstract classes possible????

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