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  • xml error: Object reference not set to an instance of an object after SelectSingleNode

    - by every_answer_gets_a_point
    here's my code: XmlDocument doc = new XmlDocument(); foreach (string c in colorList) { doc.Load(@"http://whoisxmlapi.com/whoisserver/WhoisService?domainName=" + c + @"&username=user&password=pass"); textBox1.Text += doc.SelectSingleNode("WhoisRecord/registrant/email").InnerText + ","; } for the second line of code (textbox1...) is generating this error what am i doing wrong?

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  • Put Java Threading Class into a separate class

    - by erlord
    Consider following SWT code example: http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet151.java?view=co How can I separate the inline defined class? Thread thread = new Thread() { public void run() { ... } }; I want to define a separate class which updates the table just like it does here. How do I pass the list back to the table? Example code?

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  • How do I check if a Linq to SQL entity has grandchildren?

    - by EdenMachine
    How can I find out if a Linq to SQL entity has grandchildren or not? Pseudo-code below: Return From p In dc.Processes Where p.Signers.Count > 0 and p.Signers.Signatures.Count > 0 Obviously I can't run the code above but I need to make sure that all the returning Processes have at least one Signer and that all of those Signers have at least one Signature. TIA!

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  • Executing JavaScript with Python without X.

    - by Thomas
    I want to parse a html-page that unfortunately requires JavaScript to show any content. In order to do so I use a small python-script that pulls the html-code of the page, but after that I have to execute the JavaScript in a DOM-context which seems pretty hard. To make it even harder I want to use it in a server environment that has no X11-server. Note: I already read about http://code.google.com/p/pywebkitgtk/ but it seems to need a X-server.

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  • Are comments compiled in to C# Silverlight Applications

    - by LarryDev
    Is it safe to store information such as usernames and passwords within comments in your source code? I am not worried about some getting access to my source but I am concerned in regards to someone decompiling my compiled silverlight XAP file. Is anybody 100% sure if the compiler strips off commented code. I would assume it does but I want to be sure. Thanks!

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  • VS2010 debugger always breaks

    - by Paul Knopf
    In VS2010, I set a break point (from the left gutter of the editor) on a line of code. After I removed the break point, the debugger always breaks on that line of code. After starting visual studio, the debugger still breaks at the point. Thanks in advance!

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  • Simple question: How to change div title using jquery

    - by user281180
    I have the following code: <div id="DivPassword" title="test" > I want to change the div title and I have the following code: function ChangeAttribute() { $("#DivPassword") .attr('title', 'Photo by Kelly Clark'); $('#DivPassword').dialog('open'); return false; } When the dialog is opened, the title is still test! if I dont assign any title to the div, the dialog doesnt show any title. How can I correct that?

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  • Htaccess to force use WWW for mutlidomain.

    - by Uchiha Itachi
    I found this code to force using www. RewriteEngine On RewriteCond %{HTTP_HOST} !^www.example.com$ RewriteRule ^(.*)$ http://www.example.com/$1 [R=301] But i have many domain that pointed same directory. So i need a version of this code for multiple domains. It must run on any domain, is it possible ?

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  • openDatabase Hello World

    - by cf_PhillipSenn
    I'm trying to learn about openDatabase, and I think this I'm getting it to INSERT INTO TABLE1, but I can't verify that the SELECT * FROM TABLE1 is working. <html> <head> <script src="http://www.google.com/jsapi"></script> <script type="text/javascript"> google.load("jquery", "1"); </script> <script type="text/javascript"> var db; $(function(){ db = openDatabase('HelloWorld'); db.transaction( function(transaction) { transaction.executeSql( 'CREATE TABLE IF NOT EXISTS Table1 ' + ' (TableID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, ' + ' Field1 TEXT NOT NULL );' ); } ); db.transaction( function(transaction) { transaction.executeSql( 'SELECT * FROM Table1;',function (transaction, result) { for (var i=0; i < result.rows.length; i++) { alert('1'); $('body').append(result.rows.item(i)); } }, errorHandler ); } ); $('form').submit(function() { var xxx = $('#xxx').val(); db.transaction( function(transaction) { transaction.executeSql( 'INSERT INTO Table1 (Field1) VALUES (?);', [xxx], function(){ alert('Saved!'); }, errorHandler ); } ); return false; }); }); function errorHandler(transaction, error) { alert('Oops. Error was '+error.message+' (Code '+error.code+')'); transaction.executeSql('INSERT INTO errors (code, message) VALUES (?, ?);', [error.code, error.message]); return false; } </script> </head> <body> <form method="post"> <input name="xxx" id="xxx" /> <p> <input type="submit" name="OK" /> </p> <a href="http://www.google.com">Cancel</a> </form> </body> </html>

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  • In MS Access form, how to color background of selected record?

    - by PowerUser
    I have a somewhat complicated looking Access Form with a continuous display (meaning multiple records are shown at once). I'd like to change the background color of the selected record only so the end-user can easily tell which record they are on. I'm thinking of perhaps a conditional format or maybe something like this: Private Sub Detail_HasFocus() Detail.BackColor(me.color)=vbBlue End Sub and something similar for when that row loses focus. This code snippet obviously won't work, but it's the kind of code I'd like to achieve.

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  • Flash - eval() available?

    - by user246114
    Hi, Is there any way to execute arbitrary code in Flash, like javascript's eval()? I'd like to take some code as a string and execute it, if possible (I understand this is not a great idea), Thanks

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  • How to programatically get the list of installed programs

    - by rajivpradeep
    Hi, I am creating a program which first checks whether a particular program has been installed or not, if it's installed it continues to execute other code, if it's not installed then it installs the application and then proceeds to execute the other code. How do i check programatically in VC++ that the application has been installed or not

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  • How would one rotate an image around itself using Canvas?

    - by Wolfr
    I'm having trouble roating an image around itself using Canvas. Since you can't rotate an image you have to rotate the canvas: if I rotate the canvas by a degree the origin around which I want to rotate changes. I don't get how to track this change. This is my current code: http://pastie.org/669023 And a demo is at http://preview.netlashproject.be/cog/ If you want to give things a shot the zipped up code and image is at http://preview.netlashproject.be/cog/cog.zip

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  • Determining CPU usage in WinCE

    - by Chris
    I want to be able to get the current % CPU usage in a C++ program running under Wince. I found this link that states where the source code is but I cannot find it in my platform builder installation - I expect this is because it isn't the Windows Automotive platform. Does anyone know where I can find this source code or (even better) know how I can get this information directly? i.e. what DLL / function calls to make etc.

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  • Delphi - Read File To StringList, then delete and write back to file.

    - by Jkraw90
    I'm currently working on a program to generate the hashes of files, in Delphi 2010. As part of this I have a option to create User Presets, e.g. pre-defined choice of hashing algo's which the user can create/save/delete. I have the create and load code working fine. It uses a ComboBox and loads from a file "fhpre.ini", inside this file is the users presets stored in format of:- PresetName PresetCode (a 12 digit string using 0 for don't hash and 1 for do) On application loading it loads the data from this file into the ComboBox and an Array with the ItemIndex of ComboBox matching the corrisponding correct string of 0's and 1's in the Array. Now I need to implement a feature to have the user delete a preset from the list. So far my code is as follows, procedure TForm1.Panel23Click(Sender : TObject); var fil : textfile; contents : TStringList; x,i : integer; filline : ansistring; filestream : TFileStream; begin //Start Procedure //Load data into StringList contents := TStringList.Create; fileStream := TFileStream.Create((GetAppData+'\RFA\fhpre.ini'), fmShareDenyNone); Contents.LoadFromStream(fileStream); fileStream.Destroy(); //Search for relevant Preset i := 0; if ComboBox4.Text <> Contents[i] then begin Repeat i := i + 1; Until ComboBox4.Text = Contents[i]; end; contents.Delete(i); //Delete Relevant Preset Name contents.Delete(i); //Delete Preset Digit String //Write StringList back to file. AssignFile(fil,(GetAppData+'\RFA\fhpre.ini')); ReWrite(fil); for i := 0 to Contents.Count -1 do WriteLn(Contents[i]); CloseFile(fil); Contents.Free; end; However if this is run, I get a 105 error when it gets to the WriteLn section. I'm aware that the code isn't great, for example doesn't have checks for presets with same name, but that will come, I want to get the base code working first then can tweak and add extra checks etc. Any help would be appreciated.

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  • Rows and Column of Excel File

    - by Mark
    It is possible to write a code that specifying the rows and column of spread sheet in terms of NUMBERS and NOT LIKE (B2:D6) Example: excelSheet.Range("B2:D6").Interior.Color = RGB(100, 100, 255) instead of B2 and D6 I want to write 5 rows and 3 column.. It is posible to write in vb.net 2003 code?

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  • question with its query

    - by user329820
    Hi this is my homework and the question is this: List the average balance of customers by city and short zip code (the first five digits of thezip code). Only include customers residing in Washington State (‘WA’). also the Customer table has 5 columns(Name,Family,CustZip,CustCity,CustAVGBal) I wrote the query like below is this correct? SELECT CustCity,LEFT(CustZip,5) AS NewCustZip,CustAVGBal FROM Customer WHERE CustCity = 'WA' THANKS!!

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  • C# How do I replace an actual asterisk character (*) in a Regex expression?

    - by fraXis
    Hello, I have a statement: I have a string such as content = "* test *" I want to search and replace it with so when I am done the string contains this: content = "(*) test (*)" My code is: content = Regex.Replace(content, "*", "(*)"); But this causes an error in C# because it thinks that the * is part of the Regular Expressions Syntax. How can I modify this code so it changes all asterisks in my string to (*) instead without causing a runtime error? Thanks.

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  • Safest communication method between applications on same machine

    - by Radu
    What is the safest communication method between two applications on the same machine, both Java and C/C++ clients with a Java server. Are SSL sockets safe enough or they can be broken by "man in the middle" attacks? As i saw in the documentation and code samples, JSSE retrieves private/public keys and certificates from keystore files which a malicious user can see. The only thing that you can hide in the code is the password used to unlock the keystores. Can hackers retrieve that password?

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  • Writing a Python extension in Go (golang)

    - by tehwalrus
    I currently use Cython to link C and Python, and get speedup in slow bits of python code. However, I'd like to use go routines to implement a really slow (and very parallelizable) bit of code, but it must be callable from python. (I've already seen this question) I'm (sort of) happy to go via C (or Cython) to set up data structures etc if necessary, but avoiding this extra layer would be good from a bug fix/avoidance point of view. What is the simplest way to do this without having to reinvent any wheels?

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  • Is there a good NumPy clone for Jython?

    - by jbrogdon
    I'm a relatively new convert to Python. I've written some code to grab/graph data from various sources to automate some weekly reports and forecasts. I've been intrigued by the Jython concept, and would like to port some Python code that I've written to Jython. In order to do this quickly, I need a NumPy clone for Jython (or Java). Is there anything like this out there?

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  • using win32 api in linux ?

    - by Dr Deo
    I have heard of WINE but I don't like it because it's slow on the computers I have tested and almost always crashes. It also has some unpleasant looking gui. I am wondering if there is a "win32" library in c/c++ for linux that produces native linux code so that if I have my source code for windows, I can just recompile and produce a working linux application. Is this possible?

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