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  • How do I handle a POST request in Perl and FastCGI?

    - by Peterim
    Unfortunately, I'm not familiar with Perl, so asking here. Actually I'm using FCGI with Perl. I need to 1. accept a POST request - 2. send it via POST to another url - 3. get results - 4. return results to the first POST request (4 steps). To accept a POST request (step 1) I use the following code (found it somewhere in the Internet): $ENV{'REQUEST_METHOD'} =~ tr/a-z/A-Z/; if ($ENV{'REQUEST_METHOD'} eq "POST") { read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'}); } else { print ("some error"); } @pairs = split(/&/, $buffer); foreach $pair (@pairs) { ($name, $value) = split(/=/, $pair); $value =~ tr/+/ /; $value =~ s/%(..)/pack("C", hex($1))/eg; $FORM{$name} = $value; } The content of $name (it's a string) is the result of the first step. Now I need to send $name via POST request to some_url (step 2) which returns me another result (step 3), which I have to return as a result to the very first POST request (step 4). Any help with this would be greatly appreciated. Thank you.

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  • changing background on JLabel shifts components

    - by Aly
    Hi, The code I am using is: public class Test extends JFrame implements ActionListener{ private static final Color TRANSP_WHITE = new Color(new Float(1), new Float(1), new Float(1), new Float(0.5)); private static final Color TRANSP_RED = new Color(new Float(1), new Float(0), new Float(0), new Float(0.1)); private static final Color[] COLORS = new Color[]{ TRANSP_RED, TRANSP_WHITE}; private int index = 0; private JLabel label; private JButton button; public Test(){ super(); setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS)); label = new JLabel("hello world"); label.setOpaque(true); label.setBackground(TRANSP_WHITE); getContentPane().add(label); button = new JButton("Click Me"); button.addActionListener(this); getContentPane().add(button); pack(); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { if(e.getSource().equals(button)){ label.setBackground(COLORS[index % (COLORS.length )]); index ++; } } public static void main(String[] args) { new Test(); } } When I click the button to change the labales color the GUI looks like this: Before: After: Any ideas why?

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  • What is the best way to process XML sent to WCF 3.5

    - by CRM Junkie
    I have to develop a WCF application in 3.5. The input will be sent in the form of XML and the response would be sent in the form of XML as well. A ASP.NET application will be consuming the WCF and sending/receiving data in XML format. Now, as per my understanding, when consuming WCF from an ASP.NET application, we just add a reference to the service, create an object of the service, pack all the necessary data(Data Members in WCF) into the input object (object of the Data Contract) and call the necessary function. It happens that the ASP.NET application is being developed by a separate party and they are hell bent on receiving and sending data in XML format. What I can perceive from this is that the WCF will take the XML string (a single Data Member string type) as input and send out a XML string (again a single Data Member string type) as output. I have created WCF applications earlier where requests and responses were sent out in XML/JSON format when it was consumed by jQuery ajax calls. In those cases, the XML tags were automatically mapped to the different Data Members defined. What approach should I take in this case? Should I just take a string as input (basically the XML string) or is there any way WCF/.NET 3.5 will automatically map the XML tags with the Data Members for requests and responses and I would not need to parse the XML string separately?

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  • Perl: POST request how?

    - by Peterim
    Unfortunately, I'm not familiar with Perl, so asking here. Actually I'm using FCGI with Perl. I need to 1. accept a POST request - 2. send it via POST to another url - 3. get results - 4. return results to the first POST request (4 steps). To accept a POST request (step 1) I use the following peace of code (found it somewhere in the Internet): $ENV{'REQUEST_METHOD'} =~ tr/a-z/A-Z/; if ($ENV{'REQUEST_METHOD'} eq "POST") { read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'}); } else { print ("some error"); } @pairs = split(/&/, $buffer); foreach $pair (@pairs) { ($name, $value) = split(/=/, $pair); $value =~ tr/+/ /; $value =~ s/%(..)/pack("C", hex($1))/eg; $FORM{$name} = $value; } The content of $name (it's a string) is the result of the first step. Now I need to send $name via POST request to some_url (step 2) which returns me another result (step 3), which I have to return as a result to the very first POST request (step 4). Any help with this would be greatly appreciated. Thank you.

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  • JTree events seem misordered

    - by MeBigFatGuy
    It appears to me that tree selection events should happen after focus events, but this doesn't seem to be the case. Assume you have a JTree and a JTextField, where the JTextField is populated by what is selected in the tree. When the user changes the text field, on focus lost, you update the tree from the text field. however, the tree selection is changed before the focus is lost on the text field. this is incorrect, right? Any ideas? Here is some sample code: import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class Focus extends JFrame { public static void main(String[] args) { Focus f = new Focus(); f.setLocationRelativeTo(null); f.setVisible(true); } public Focus() { Container cp = getContentPane(); cp.setLayout(new BorderLayout()); final JTextArea ta = new JTextArea(5, 10); cp.add(new JScrollPane(ta), BorderLayout.SOUTH); JSplitPane sp = new JSplitPane(); cp.add(sp, BorderLayout.CENTER); JTree t = new JTree(); t.addTreeSelectionListener(new TreeSelectionListener() { public void valueChanged(TreeSelectionEvent tse) { ta.append("Tree Selection changed\n"); } }); t.addFocusListener(new FocusListener() { public void focusGained(FocusEvent fe) { ta.append("Tree focus gained\n"); } public void focusLost(FocusEvent fe) { ta.append("Tree focus lost\n"); } }); sp.setLeftComponent(new JScrollPane(t)); JTextField f = new JTextField(10); sp.setRightComponent(f); pack(); f.addFocusListener(new FocusListener() { public void focusGained(FocusEvent fe) { ta.append("Text field focus gained\n"); } public void focusLost(FocusEvent fe) { ta.append("Text field focus lost\n"); } }); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }

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  • Swing - how to mix JTextField and JTextAreas and have same visual appearance?

    - by I82Much
    I am using miglayout to create a form in which there are JTextFields (short input answers) as well as JTextAreas (Longer answers). The problem is twofold. The border placed around a Scrollpane wrapped text area does not match that of a Text Field. The width and placement of the textarea/textfield differ, causing them not to line up correctly. Source code: package test2; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import net.miginfocom.swing.MigLayout; public class Test extends JPanel { private static final int NUM_CHARACTERS_WIDTH = 20; private static final int NUM_ROWS = 5; public Test() { setLayout(new MigLayout( "wrap 2", // Align text labels on the so their right edge meets left edge of the text fields "[right][left]" )); add(new JLabel("Text field:")); add(new JTextField(NUM_CHARACTERS_WIDTH)); add(new JLabel("No scrollpane text area:")); add(new JTextArea(NUM_ROWS, NUM_CHARACTERS_WIDTH)); add(new JLabel("Scrollpane text area:")); add(new JScrollPane(new JTextArea(NUM_ROWS, NUM_CHARACTERS_WIDTH))); add(new JLabel("Text field:")); add(new JTextField(NUM_CHARACTERS_WIDTH)); } public static void main(String[] args) { JFrame frame = new JFrame(""); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new Test(); frame.add(panel); frame.pack(); frame.setVisible(true); } } What's the preferred way to mix and match jtextfield and jtextareas, while still maintaining visual harmony? I notice now that the text field has a blue highlight around it when focus is in it, as opposed to the text area... another source of visual discontinuity.

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  • WPF compile error "IDictionary must have a Key attribute"

    - by the empirical programmer
    I've created control styles I want to use among multiple xaml pages in my WPF app. To do this I created a Resources.xaml and added the styles there. Then in my pages I add this code <Grid.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="pack://application:,,,/SampleEventTask;component/Resources.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Grid.Resources> On two pages this works fine, but on the 3rd page I get a compile error that says: All objects added to an IDictionary must have a Key attribute or some other type of key associated with them. If I add a key to this, as such ResourceDictionary x:Key="x", then the compile error goes but on running the app it errors finding the style. I can make the compile error go away and have the app run by just moving original (no key specified) "ResourceDictionary" xaml from the top level Grid into a contained Grid on that page. But I don't understand what is going on here. Any suggestions as to what the problem is, I'm just missing something or doing something incorrectly. Is there a better way to share styles? thanks

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  • software distribution and patch management

    - by daemonkid
    How do software houses like Microsoft or anti-virus companies patch/update their software? Anti virus companies dont send the complete executable; only new virus signatures I suppose. Similarly, Ive noticed microsoft sends certain files to the '$NtUninstallKB......$' folder that it creates when it the windows update program runs. I suppose there is an installer in each such folder there that replaces only those dlls that need to be updated or fixed. Questions Is there a universal method for doing this or does each house employ their own methods? I dont want to re-send the entire application to each individual client. Suppose if only certain dlls need to be changed or maybe some more added, how should I go about planning my final compiled application. Do I need to look at separating my application into multiple assemblies? If yes, then is there some compilation method that is allows to pack specific classes into a particular dll? What I have put down here are my thoughts on the subject and I could be wrong. Could anyone throw some light on this please? I am looking at implementing such a deployment and patch management technique for the .net platform. Thanks for your time.

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  • Q on Python serialization/deserialization

    - by neil
    What chances do I have to instantiate, keep and serialize/deserialize to/from binary data Python classes reflecting this pattern (adopted from RFC 2246 [TLS]): enum { apple, orange } VariantTag; struct { uint16 number; opaque string<0..10>; /* variable length */ } V1; struct { uint32 number; opaque string[10]; /* fixed length */ } V2; struct { select (VariantTag) { /* value of selector is implicit */ case apple: V1; /* VariantBody, tag = apple */ case orange: V2; /* VariantBody, tag = orange */ } variant_body; /* optional label on variant */ } VariantRecord; Basically I would have to define a (variant) class VariantRecord, which varies depending on the value of VariantTag. That's not that difficult. The challenge is to find a most generic way to build a class, which serializes/deserializes to and from a byte stream... Pickle, Google protocol buffer, marshal is all not an option. I made little success with having an explicit "def serialize" in my class, but I'm not very happy with it, because it's not generic enough. I hope I could express the problem. My current solution in case VariantTag = apple would look like this, but I don't like it too much import binascii import struct class VariantRecord(object): def __init__(self, number, opaque): self.number = number self.opaque = opaque def serialize(self): out = struct.pack('>HB%ds' % len(self.opaque), self.number, len(self.opaque), self.opaque) return out v = VariantRecord(10, 'Hello') print binascii.hexlify(v.serialize()) >> 000a0548656c6c6f Regards

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  • Windows 7 theme for WPF?

    - by DanM
    Is there any way to make a WPF app look like it's running on Windows 7 even if it's running on XP? I'm looking for some kind of theme I can just paste in. I'm aware of the themes project on Codeplex (http://www.codeplex.com/wpfthemes), but it lacks support for DataGrid, which is something I critically need. I was thinking maybe the Windows 7 theme would just be an easy port, or exists in some file somewhere already. Any information you have (even if it's bad news) would be much appreciated. Update Using @Lars Truijens idea, I was able to get the Windows 7 look for the major controls, but unfortunately it did not work for the WPF Toolkit DataGrid control, which I need. DataGrid looks like this with Aero theme DataGrid should look like this So, I'm still looking for a solution to this problem if anyone has any ideas. Maybe someone has built an extension to the Aero theme that covers the WPF toolkit controls? Again, any information you have is much appreciated. Update 2 - Problem solved! To get the Aero theme to work with WPF Toolkit controls, you just need to add a second Aero dictionary, so your App.xaml should now look like this. <Application.Resources> ... <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/PresentationFramework.Aero;component/themes/Aero.NormalColor.xaml" /> <ResourceDictionary Source="pack://application:,,,/WPFToolkit;component/Themes/Aero.NormalColor.xaml" /> ... </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources> Also, I would recommend turning the gridlines off in your DataGrid controls (because they look horrible): <DataGrid GridLinesVisibility="None" ...>

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  • Using TaskDialogIndirect in C#

    - by Dennis Delimarsky
    I've been working for a while with the regular Windows Vista/7 TaskDialog for a while, and I wanted to add some additional functionality (like custom buttons and a footer), so I need to use TaskDialogIndirect. Following the MSDN documentation for TaskDialogIndirect, I got this signature: [DllImport("comctl32.dll",CharSet = CharSet.Unicode,EntryPoint="TaskDialogIndirect")] static extern int TaskDialogIndirect (TASKDIALOGCONFIG pTaskConfig, out int pnButton, out int pnRadioButton, out bool pfVerificationFlagChecked); The TASKDIALOGCONFIG class is shown below: public class TASKDIALOGCONFIG { public UInt16 cbSize; public IntPtr hwndParent; public IntPtr hInstance; public String dwFlags; public String dwCommonButtons; public IntPtr hMainIcon; public String pszMainIcon; public String pszMainInstruction; public String pszContent; public UInt16 cButtons; public TASKDIALOG_BUTTON pButtons; public int nDefaultButton; public UInt16 cRadioButtons; public TASKDIALOG_BUTTON pRadioButtons; public int nDefaultRadioButton; public String pszVerificationText; public String pszExpandedInformation; public String pszExpandedControlText; public String pszCollapsedControlText; public IntPtr hFooterIcon; public IntPtr pszFooterText; public String pszFooter; // pfCallback; // lpCallbackData; public UInt16 cxWidth; } The TASKDIALOG_BUTTON implementation: public class TASKDIALOG_BUTTON { public int nButtonID; public String pszButtonText; } I am not entirely sure if I am on the right track here. Did anyone use TaskDialogIndirect from managed code directly through WinAPI (without VistaBridge or Windows API Code Pack)? I am curious about the possible implementations, as well as the callback declarations (I am not entirely sure how to implement TaskDialogCallbackProc). PS: I am looking for a direct WinAPI implementation, not one through a wrapper.

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  • Boost class/struct serialization to byte array

    - by Dave18
    does boost library provide functions to pack the class/struct data into a byte array to shorten the length of serialized data? Currently i'm using stringstream to get the serialized data, for example - struct data { std::string s1; std::string s2; int i; }; template <typename Archive> void serialize(Archive &ar, data &d, const unsigned int version) { ar & d.s1; ar & d.s2; ar & d.i; } int main() { data d; d.s1 = "This is my first string"; d.s2 = "This is my second string"; d.i = 10000; std::stringstream archive_stream; boost::archive::text_oarchive archive(archive_stream); archive.operator <<(d); } How would i use a byte array instead of stringstream for data?

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  • LookAndFeel not changing in Ubuntu

    - by Tom Brito
    Anyone knows Why the laf is not changing in the following code? (running in Ubuntu) import java.awt.Dialog; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JComboBox; import javax.swing.JDialog; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UIManager.LookAndFeelInfo; public class TEST extends JPanel { public TEST() { final LookAndFeelInfo[] lafArray = UIManager.getInstalledLookAndFeels(); String[] names = new String[lafArray.length]; for (int i = 0; i < names.length; i++) { names[i] = lafArray[i].getName(); } final JComboBox cb = new JComboBox(names); cb.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { try { int index = cb.getSelectedIndex(); LookAndFeelInfo lafInfo = lafArray[index]; String lafClassName = lafInfo.getClassName(); System.out.println(lafClassName); UIManager.setLookAndFeel(lafClassName); } catch (Exception e) { e.printStackTrace(); } } }); add(cb); } public static void main(String[] args) throws Exception { System.out.println("start"); JDialog dialog = new JDialog(null, Dialog.ModalityType.APPLICATION_MODAL); dialog.setContentPane(new TEST()); dialog.pack(); dialog.setLocationRelativeTo(null); dialog.setVisible(true); dialog.dispose(); System.out.println("end"); } }

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  • How to add an image dynamically at runtime in java

    - by Brandon
    I've been trying to load up an image dynamically in runtime for the longest time and have taken a look at other posts on this site and have yet to find exactly the thing that will work. I am trying to load an image while my GUI is running (making it in runtime) and have tried various things. Right now, I have found the easiest way to create an image is to use a JLabel and add an ImageIcon to it. This has worked, but when I go to load it after the GUI is running, it fails saying there is a "NullPointerException". Here is the code I have so far: p = Runtime.getRuntime().exec("python C:\\FaceVACS\\roc.py " + "C:/FaceVACS/OutputCMC_" + target + ".txt " + "C:/FaceVACS/ROC_" + target + ".png"); Icon graph = new ImageIcon("C:\\FaceVACS\\OutputCMC_" + target + ".png"); roc_image.setIcon(graph); panel.add(roc_image); panel.revalidate(); gui.frame.pack(); I tried panel.validate(), panel.revalidate(), and I've also tried gui.getRootPane(), but I can't seem to find anything that will work. Any ideas would be helpful! Thanks

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  • Coda Slider and Fancybox Conflict

    - by Jings
    Hey there, i have some issues with Coda Slider and Fancybox. I use Fancybox to load an external Site within an Iframe and Coda Slider is for the Content Slider on the Startpage. If i have the jquery-easing Plugin called in my Head fpr the Coda Slider, the Fancybox doesn't work. When i delete the link to jquery-easing-1.3 the Coda Slider throws an Exception but the Fancybox works perfectly Here is some Code: <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/jquery.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/fancybox/jquery.fancybox-1.3.4.pack.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/coda-slider.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/jquery.easing.1.3.js"></script> <script> $(document).ready(function(){ $(".book a").fancybox({ 'width' : '75%', 'height' : '75%', 'speedIn' : 600, 'speedOut' : 200, 'overlayShow' : true, 'type' : 'iframe', 'autoscale' : false, 'hideOnOverlayClick' : true }); $('#coda-slider').codaSlider({ autoSlide: true, autoSlideInterval: 5500, autoHeightEaseDuration: 2500, autoHeightEaseFunction: "easeInOutElastic", slideEaseDuration: 2500, slideEaseFunction: "easeInOutElastic", dynamicArrows: false, dynamicTabs: false }); }); </script> Don't know why this doesn't work as it should :) Hope you Guys know =)

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  • Why this method does not use any properties of the object?

    - by Roman
    Here I found this code: import java.awt.*; import javax.swing.*; public class FunWithPanels extends JFrame { public static void main(String[] args) { FunWithPanels frame = new FunWithPanels(); frame.doSomething(); } void doSomething() { Container c = getContentPane(); JPanel p1 = new JPanel(); p1.setLayout(new BorderLayout()); p1.add(new JButton("A"), BorderLayout.NORTH); p1.add(new JButton("B"), BorderLayout.WEST); JPanel p2 = new JPanel(); p2.setLayout(new GridLayout(3, 2)); p2.add(new JButton("F")); p2.add(new JButton("G")); p2.add(new JButton("H")); p2.add(new JButton("I")); p2.add(new JButton("J")); p2.add(new JButton("K")); JPanel p3 = new JPanel(); p3.setLayout(new BoxLayout(p3, BoxLayout.Y_AXIS)); p3.add(new JButton("L")); p3.add(new JButton("M")); p3.add(new JButton("N")); p3.add(new JButton("O")); p3.add(new JButton("P")); c.setLayout(new BorderLayout()); c.add(p1, BorderLayout.CENTER); c.add(p2, BorderLayout.SOUTH); c.add(p3, BorderLayout.EAST); pack(); setVisible(true); } } I do not understand how "doSomething" use the fact that "frame" is an instance of the class JFrame. It is not clear to me because there is no reference to "this" in the code for the method "doSomething".

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  • Valueurl Binding On Large Arrays Causes Sluggish User Interface

    - by Hooligancat
    I have a large data set (some 3500 objects) that returns from a remote server via HTTP. Currently the data is being presented in an NSCollectionView. One aspect of the data is a path pack to the server for a small image that represents the data (think thumbnail for simplicity). Bindings works fantastically for the data that is already returned, and binding the image via a valueurl binding is easy to do. However, the user interface is very sluggish when scrolling through the data set - which makes me think that the NSCollectionView is retrieving all the image data instead of just the image data used to display the currently viewable images. I was under the impression that Cocoa controls were smart enough to only retrieve data for the information that is actually being output to the user interface through lazy loading. This certainly seems to be the case with NSTableView - but I could be misguided on this thought. Should valueurl binding act lazily and, moreover, should it act lazily in an NSCollectionView? I could create a caching mechanism (in fact I already have such a thing in place for another application - see my post here if you are interested http://stackoverflow.com/questions/1740209/populating-nsimage-with-data-from-an-asynchronous-nsurlconnection) but I really don't want to go this route if I don't have to for this specific implementation as the user could potentially change data sets often and may only want small sub-sets of the data. Any suggested approaches? Thanks!

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  • Request for the permission of type 'System.Web.AspNetHostingPermission' when compiling web site

    - by ahsteele
    I have been using Windows 7 for a while but have not had to work with a particular legacy intranet application since my upgrade. Unfortunately, this application is setup as an ASP.NET Website project hosted on a remote server. When I have the website open in Visual Studio 2008 and try to debug it: Request for the permission of type 'System.Web.AspNetHostingPermission' failed To resolve this issue on Windows Vista machines I would change the machine's .NET Security Configuration to trust the local intranet. I believe this configuration utility relied upon the mscorcfg.msc which from some cursory research appears to be apart of the .NET 2.0 SDK. I have tried to follow the instructions from this Microsoft Support article running the command below to no avail. Drive:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\caspol.exe -m -ag 1 -url "file:////\\computername\sharename\*" FullTrust -exclusive on Presently, I have the following .NET and ASP.NET components installed on my machine Microsoft .NET Compact Framework 2.0 SP2 Microsoft .NET Compact Framework 3.5 Microsoft .NET Framework 4 Client Profile Microsoft .NET Framework 4 Extended Microsoft .NET Framework 4 Multi-Targeting Pack Microsoft ASP.NET MVC 1.0 Microsoft ASP.NET MVC 2 Microsoft ASP.NET MVC 2 - Visual Studio 2008 Tools Microsoft ASP.NET MVC 2 - Visual Studio 2010 Tools Do I need to install the .NET 2.0 SDK? Am I issuing the caspol command incorrectly? Is there something else that I am missing?

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  • miglayout: can't get right-alignment to work

    - by Jason S
    Something's not right here. I'm trying to get the rightmost button (labeled "help" in the example below) to be right-aligned to the JFrame, and the huge buttons to have their width tied to the JFrame but be at least 180px each. I got the huge button constraint to work, but not the right alignment. I thought the right alignment was accomplished by gapbefore push (as in this other SO question), but I can't figure it out. Can anyone help me? import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import net.miginfocom.swing.MigLayout; public class RightAlignQuestion { public static void main(String[] args) { JFrame frame = new JFrame("right align question"); JPanel mainPanel = new JPanel(); frame.setContentPane(mainPanel); mainPanel.setLayout(new MigLayout("insets 0", "[grow]", "")); JPanel topPanel = new JPanel(); topPanel.setLayout(new MigLayout("", "[][][][]", "")); for (int i = 0; i < 3; ++i) topPanel.add(new JButton("button"+i), ""); topPanel.add(new JButton("help"), "gapbefore push, wrap"); topPanel.add(new JButton("big button"), "span 3, grow"); JPanel bottomPanel = new JPanel(); bottomPanel.setLayout(new MigLayout("", "[180:180:,grow][180:180:,grow]","100:")); bottomPanel.add(new JButton("tweedledee"), "grow"); bottomPanel.add(new JButton("tweedledum"), "grow"); mainPanel.add(topPanel, "grow, wrap"); mainPanel.add(bottomPanel, "grow"); frame.pack(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } }

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  • Intent Bundle returns Null every time?

    - by Max
    I have some extras sent to a new intent. There it grabs the bundle and tests if it is null. Every single time it is null even though I am able to get the values passed and use them. Can anyone see what is wrong with the if statement? Intent i = getIntent(); Bundle b = i.getExtras(); int picked = b.getInt("PICK"); int correct = b.getInt("CORR"); type = b.getString("RAND"); if(b == null || !b.containsKey("WELL")) { Log.v("BUNDLE", "bun is null"); } else { Log.v("BUNDLE", "Got bun well"); } EDIT: Heres where the bundle is created. Intent intent = new Intent(this, app.pack.son.class); Bundle b = new Bundle(); b.putInt("PICK", pick); b.putInt("CORR", corr); b.putString("RAND", "yes"); intent.putExtras(b); startActivity(intent);

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  • Increasing Regex Efficiency

    - by cam
    I have about 100k Outlook mail items that have about 500-600 chars per Body. I have a list of 580 keywords that must search through each body, then append the words at the bottom. I believe I've increased the efficiency of the majority of the function, but it still takes a lot of time. Even for 100 emails it takes about 4 seconds. I run two functions for each keyword list (290 keywords each list). public List<string> Keyword_Search(HtmlNode nSearch) { var wordFound = new List<string>(); foreach (string currWord in _keywordList) { bool isMatch = Regex.IsMatch(nSearch.InnerHtml, "\\b" + @currWord + "\\b", RegexOptions.IgnoreCase); if (isMatch) { wordFound.Add(currWord); } } return wordFound; } Is there anyway I can increase the efficiency of this function? The other thing that might be slowing it down is that I use HTML Agility Pack to navigate through some nodes and pull out the body (nSearch.InnerHtml). The _keywordList is a List item, and not an array.

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  • iPhone Core Data problem

    - by Junior B.
    This is my first project with Core Data, I followed the Event tutorial provided by Apple that helped me to understand the basic of core data in iPhone. But now, working over my project, I've a problem adding data into my database. When i create an object and set the data, if I try to get it back, the system returns me a strange sequence of characters. This is what i see in log if I try to log it: 2010-05-11 00:16:43.523 FG[2665:207] Package: ‡}00å 2010-05-11 00:16:43.525 FG[2665:207] Package: ‡}00å 2010-05-11 00:16:43.526 FG[2665:207] Package: ‡}00å 2010-05-11 00:16:43.527 FG[2665:207] Package: ‡}00å 2010-05-11 00:16:43.527 FG[2665:207] Package: ‡}00å 2010-05-11 00:16:43.527 FG[2665:207] Items: 5 What kind of problem could be this? Edit: This is the part of the code that generate the error: package = (Package *)[NSEntityDescription insertNewObjectForEntityForName:@"Package" inManagedObjectContext:moc]; theNodes = [doc nodesForXPath:@"//pack" error:&error]; for (CXMLElement *theElement in theNodes) { // Create a counter variable as type "int" int counter; // Loop through the children of the current node for(counter = 0; counter < [theElement childCount]; counter++) { if([[[theElement childAtIndex:counter] name] isEqualToString: @"id"]) [package setIdPackage:[[theElement childAtIndex:counter] stringValue]]; if([[[theElement childAtIndex:counter] name] isEqualToString: @"title"]) [package setPackageTitle:[[theElement childAtIndex:counter] stringValue]]; if([[[theElement childAtIndex:counter] name] isEqualToString: @"category"]) [package setCategory:[[theElement childAtIndex:counter] stringValue]]; if([[[theElement childAtIndex:counter] name] isEqualToString: @"lang"]) [package setLang:[[theElement childAtIndex:counter] stringValue]]; if([[[theElement childAtIndex:counter] name] isEqualToString: @"number"]) { NSNumberFormatter * f = [[NSNumberFormatter alloc] init]; [f setNumberStyle:NSNumberFormatterDecimalStyle]; NSNumber * myNumber = [f numberFromString:[[theElement childAtIndex:counter] stringValue]]; [f release]; [package setNumber:myNumber]; } } } NSLog([NSString stringWithFormat:@"=== %s ===\nID: %s\nCategory: %s\nLanguage: %s",[package packageTitle], [package idPackage] ,[package category],[package lang]]);

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  • Java problem: Could not find main class HelloWorld

    - by Newbie
    I am new to java(a real novice). I installed Java 1.7.0 in the following folder C:\Program Files\Java The environment variable which I set are CLASSPATH : C:\Program Files\Java\jdk1.7.0\jre\lib\rt.jar; Path : C:\Program Files\Java\jdk1.7.0\bin; JAVA_HOME : C:\Program Files\Java; I have presented here the class names which are in my system. Next I wrote a program(HelloWorld.java) import java.io.*; class HelloWorld { public static void main(String[] args) { System.out.println("Hello World!"); } } When I am compiling using javac HelloWorld.java it is compiling fine. But after I issue java HelloWorld I am encountering the below error Error: Could not find main class HelloWorld Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorld at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:198) Caused by: java.lang.ClassNotFoundException: HelloWorld at java.net.URLClassLoader$1.run(URLClassLoader.java:299) at java.net.URLClassLoader$1.run(URLClassLoader.java:288) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:287) at java.lang.ClassLoader.loadClass(ClassLoader.java:422) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:325) at java.lang.ClassLoader.loadClass(ClassLoader.java:355) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:195) After a bit of google search I found that may be something wrong in the environment variable. I tried to play with that but no luck. I know that it may be a very simple thing for the real java developers(actually basic) but for me as of now no luck! I even RESTARTED the machine and then again I tried to run but with same fate. OS: Windows XP(Version 2002) with Service pack 3 Help needed . Thanks .

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  • Focus behavior in Applet-Javascript interaction

    - by Dan
    I have a web page with an applet that opens a popup window and also makes Javascript calls. When that Javascript call results in a focus() call on an HTML input, that causes the browser window to push itself in front of the applet window. But only on certain browsers, namely MSIE. On Firefox the applet window remains on top. How can I keep that behavior consistent in MSIE? Note that using the old Microsoft VM for Java also achieves the desired (applet window in front) result. HTML code: <html> <head> <script type="text/javascript"> function focusMe() { document.getElementById('mytext').focus(); } </script> </head> <body> <applet id="myapplet" mayscript code="Popup.class" ></applet> <form> <input type="text" id="mytext"> <input type="button" onclick="document.getElementById('myapplet').showPopup()" value="click"> </form> </body> </html> Java code: public class Popup extends Applet { Frame frame; public void start() { frame = new Frame("Test Frame"); frame.setLayout(new BorderLayout()); Button button = new Button("Push Me"); frame.add("Center", button); button.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { frame.setVisible(false); } }); frame.pack(); } public void showPopup() { frame.setVisible(true); JSObject.getWindow(this).eval("focusMe()"); } }

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  • How to use my trackpad for horizontal mousewheel scrolling in a Java AWT ScrollPane

    - by blissapp
    Like many modern mice and trackpads, my laptop supports vertical and horizontal scrolling. It's an addictive feature once you get used to it. I simply want my Java apps to support horizontal scrolling via the trackpad/mousewheel, but everywhere I search it seems that this is not possible in Java. I really want someone to tell me that I'm somehow doing it wrong, this feature is already requested behaviour: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6440198 The inability to do this simple thing is actually a deal breaker for the app I'm working on. In fact, for any app I can envision! I've invested a bit of time in the Java backend, so I'd really like to find a solution for this seemingly simple thing. Question is what could I do to implement this behaviour? Are raw OS level events even exposed to java, would I then need to write this from scratch? import java.awt.*; public class ScrollExample extends Canvas { public void paint(Graphics g) { g.setColor(Color.green); g.fillOval(0,0,400, 400); } public static void main(String[] args) { ScrollExample b = new ScrollExample(); Frame f = new Frame ("Scroll Example"); ScrollPane scroller = new ScrollPane (ScrollPane.SCROLLBARS_ALWAYS); scroller.add(b,"Center"); f.setPreferredSize(new Dimension(500,500)); f.add ("Center",scroller); f.pack(); f.show(); } }

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