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• WSDLException : An error occurred trying to resolve schema referenced at ...

  - by Stefano

  Hello i'm trying to generate a proxy class from a local wsdl file with eclipse Galileo and axis 2 1.4 on windows xp . My problem is that i get an error due to an imported schema inside the wsdl . The line tha troubles me is : <xsd:import namespace="http://www.w3.org/2005/05/xmlmime" schemaLocation="http://www.w3.org/2005/05/xmlmime"/> i've tried to run the wsdl2java following command: wsdl2java.bat -uri SOAService.wsdl -o D:\temp p test -d xmlbeans -a -s -ns2p -uw and i get the following exception : Exception in thread "main" org.apache.axis2.wsdl.codegen.CodeGenerationException : Error parsing WSDL at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.(CodeGenerat ionEngine.java:156) at org.apache.axis2.wsdl.WSDL2Code.main(WSDL2Code.java:35) at org.apache.axis2.wsdl.WSDL2Java.main(WSDL2Java.java:24) Caused by: javax.wsdl.WSDLException: WSDLException (at /wsdl:definitions/wsdl:ty pes/xsd:schema): faultCode=OTHER_ERROR: An error occurred trying to resolve sche ma referenced at 'http://www.w3.org/2005/05/xmlmime', relative to 'file:/D:/Prog rammi/axis2-1.4/bin/SOAService.wsdl'.: java.net.ConnectException: Connection tim ed out: connect at com.ibm.wsdl.xml.WSDLReaderImpl.parseSchema(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.parseSchema(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.parseTypes(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.parseDefinitions(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source) at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source) at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.readInTheWSDLFile( CodeGenerationEngine.java:288) at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.(CodeGenerat ionEngine.java:111) ... 2 more Caused by: java.net.ConnectException: Connection timed out: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.Socket.connect(Socket.java:520) at java.net.Socket.connect(Socket.java:470) at sun.net.NetworkClient.doConnect(NetworkClient.java:157) at sun.net.www.http.HttpClient.openServer(HttpClient.java:388) at sun.net.www.http.HttpClient.openServer(HttpClient.java:523) at sun.net.www.http.HttpClient.(HttpClient.java:231) at sun.net.www.http.HttpClient.New(HttpClient.java:304) at sun.net.www.http.HttpClient.New(HttpClient.java:321) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLC onnection.java:813) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConne ction.java:765) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection .java:690) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon nection.java:934) at java.net.URL.openStream(URL.java:1007) at com.ibm.wsdl.util.StringUtils.getContentAsInputStream(Unknown Source) i suspect it's due to the system proxy which doesn't let retrieve the xsd to the wsdl2java tool. In fact i can download the file from the browser without problems. There's an option to specify a proxy to wsdl2java or someone has resolved this issue ? For the moment i've downloaded the xsd, added it to the project and changed the wsdl to include the relative file (instead of the remote one) , but i'd prefer to avoid this , because the file is a third party service wsdl. thank you in advance for any hint Stefano

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• How to configure Hudson and git plugin with an SSH key

  - by jlpp

  I've got Hudson (continuous integration system) with the git plugin running on a Tomcat Windows Service. msysgit is installed and the msysgit bin dir is in the path. PuTTY/Pageant/plink are installed and msysgit is configured to use them. When I run a job that attempts to clone the git repository I get the following error: $ git clone -o origin git@hostname:project.git "e:\HUDSON_HOME\jobs\Project Trunk\workspace" ERROR: Error cloning remote repo 'origin' : Could not clone git@hostname:project.git ERROR: Cause: Error performing git clone -o origin git@hostname:project.git e:\HUDSON_HOME\jobs\Project Trunk\workspace Trying next repository ERROR: Could not clone from a repository FATAL: Could not clone hudson.plugins.git.GitException: Could not clone Running git clone -o origin git@hostname:project.git "e:\HUDSON_HOME\jobs\Project Trunk\workspace" from the command line works without error. I've confirmed that my issue is not the same as http://stackoverflow.com/questions/1177292/hudson-git-clone-error because git is in the path and I don't get any error about the git executable on Hudson's Configure System page. This leads me to believe that the problem is that the user who owns the Tomcat/Hudson Windows service (Local System) has no SSH key set up to be able to clone the git repository. My question is, how can I set things up so that the git plugin/msysgit know to use a particular SSH key when trying to clone? I don't think Pageant will work because the Tomcat service is running as the "Local System" user, but I may be wrong. I have tried setting Pageant up as a service (using runassvc.exe), passing the appropriate key, and having it run as "Local System". The Tomcat/Hudson service doesn't seem to be able to see the key from the pageant service. Are there any other techniques for setting up a key? Thanks. EDIT: The discussion on http://n4.nabble.com/Hudson-with-git-and-ssh-td375633.html shows that someone else had a similar question. ssh-agent was suggested and this tool does come with msysgit but I'm not sure how to use it in conjunction with the Hudson service. Still, good clue if anyone can fill in the gaps. Thanks to Peter for the comment with the link. Also, the discussion on http://n4.nabble.com/questions-about-git-and-github-plug-ins-td383420.html starts off with the same question. I'm trying to resurrect that thread.

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• WPF Custom Buttons below ListBox Items

  - by Ryan

  WPF Experts - I am trying to add buttons below my custom listbox and also have the scroll bar go to the bottom of the control. Only the items should move and not the buttons. I was hoping for some guidance on the best way to achieve this. I was thinking the ItemsPanelTemplate needed to be modified but was not certain. Thanks My code is below <!-- List Item Selected --> <LinearGradientBrush x:Key="GotFocusStyle" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="Black" Offset="0.501"/> <GradientStop Color="#FF091F34"/> <GradientStop Color="#FF002F5C" Offset="0.5"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <!-- List Item Hover --> <LinearGradientBrush x:Key="MouseOverFocusStyle" StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FF013B73" Offset="0.501"/> <GradientStop Color="#FF091F34"/> <GradientStop Color="#FF014A8F" Offset="0.5"/> <GradientStop Color="#FF003363" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <!-- List Item Selected --> <LinearGradientBrush x:Key="LostFocusStyle" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.RelativeTransform> <TransformGroup> <ScaleTransform CenterX="0.5" CenterY="0.5"/> <SkewTransform CenterX="0.5" CenterY="0.5"/> <RotateTransform CenterX="0.5" CenterY="0.5"/> <TranslateTransform/> </TransformGroup> </LinearGradientBrush.RelativeTransform> <GradientStop Color="#FF091F34" Offset="1"/> <GradientStop Color="#FF002F5C" Offset="0.4"/> </LinearGradientBrush> <!-- List Item Highlight --> <SolidColorBrush x:Key="ListItemHighlight" Color="#FFE38E27" /> <!-- List Item UnHighlight --> <SolidColorBrush x:Key="ListItemUnHighlight" Color="#FF6FB8FD" /> <Style TargetType="ListBoxItem"> <EventSetter Event="GotFocus" Handler="ListItem_GotFocus"></EventSetter> <EventSetter Event="LostFocus" Handler="ListItem_LostFocus"></EventSetter> </Style> <DataTemplate x:Key="CustomListData" DataType="{x:Type ListBoxItem}"> <Border BorderBrush="Black" BorderThickness="1" Margin="-2,0,0,-1"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListBoxItem}}, Path=ActualWidth}" /> </Grid.ColumnDefinitions> <Label VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="{StaticResource ListItemUnHighlight}" FontSize="24" Tag="{Binding .}" Grid.Column="0" MinHeight="55" Cursor="Hand" FontFamily="Arial" FocusVisualStyle="{x:Null}" KeyboardNavigation.TabNavigation="None" Background="{StaticResource LostFocusStyle}" MouseMove="ListItem_MouseOver" > <Label.ContextMenu> <ContextMenu Name="editMenu"> <MenuItem Header="Edit"/> </ContextMenu> </Label.ContextMenu> <TextBlock Text="{Binding .}" Margin="15,0,40,0" TextWrapping="Wrap"></TextBlock> </Label> <Image Tag="{Binding .}" Source="{Binding}" Margin="260,0,0,0" Grid.Column="1" Stretch="None" Width="16" Height="22" HorizontalAlignment="Center" VerticalAlignment="Center" /> </Grid> </Border> </DataTemplate> </Window.Resources> <Window.DataContext> <ObjectDataProvider ObjectType="{x:Type local:ImageLoader}" MethodName="LoadImages" /> </Window.DataContext> <ListBox ItemsSource="{Binding}" Width="320" Background="#FF021422" BorderBrush="#FF1C4B79" > <ListBox.Resources> <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}">Transparent</SolidColorBrush> <Style TargetType="{x:Type ListBox}"> <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" /> <Setter Property="ItemTemplate" Value="{StaticResource CustomListData }" /> </Style> </ListBox.Resources> </ListBox>

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• FILESTREAM/FILETABLE Clarifications for Implementation

  - by user1209734

  Recently our team was looking at FILESTREAM to expand the capabilities of our proprietary application. The main purpose of this app is managing the various PDFS, Images and documents to all of the parts we manufacture. Our ASP application uses a few third party tools to allow viewing of these files. We currently have 980GB of data on the Fileserver. We have around 200GB of Binary data in SQL Server that we would like to extract since it is not performing well hence FILESTREAM seems to be a good compromise to the two major data storage/access issues. A few things are not exactly clear to us: FILESTREAM Can or Cannot store its data on a drive that is not locally attached. We already have a File Server with a RAID 10 (1.5TB drives). This server stores all of the documents right now, would we have to move these drives to the SQL Server for FILESTREAM? That would be a tough bullet to bite since the server also is doubling as the Application Server (Two VMs on one physical server). FILETABLE stores the common metadata about the files but where is the Full Text part of it stored to allow searching of files like doc/docx? Is this separate? Are you able to freely add criteria to this to search by? If so any links to clarify would be appreciated. Can FILETABLE be referenced in another table with a foreign key? Thank you in advance EDIT: For those having these questions this web video covered everything and more in terms of explaining filestream from 2008 to 2012 and the cavets to consider (I would seriously rep him if I could): http://channel9.msdn.com/Events/TechDays/Techdays-2012-the-Netherlands/2270 In conclusion we will not be using FILESTREAM as it would be way to huge of an upsurge to accommodate for investment. EDIT 2: Update to #1 - After carefully assessing FileTable in addition to FILESTREAM we got a winning combination. We did have to move the files over to the new server (wasn't to painful since they were on the same VM).It honestly took more time to write an extraction tool to dump the binary data within SQL to the File System. Update to #2 - This was seperate but again Bob had an excellent webinar explaining this: http://channel9.msdn.com/Events/TechEd/Europe/2012/DBI411 Update to #3 - Using TFT inheritance we recycled the Docs table we had (minus the huge binary blobs) which required very little changes in our legacy apps. This was a huge upshot for the developer team.

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• Debugging XSLT with extension objects in Visual Studio 2010

  - by Alex Ciminian

  I'm currently working on a project that involves a lot of XSLT transformations and I really need a debugger (I have XSLTs that are 1000+ lines long and I didn't write them :-). The project is written in C# and makes use of extension objects: xslArg.AddExtensionObject("urn:<obj>", new <Obj>()); From my knowledge, in this situation Visual Studio is the only tool that can help me debug the transformations step-by-step. The static debugger is no use because of the extension objects (it throws an error when it reaches elements that reference their namespace). Fortunately, I've found this thread which gave me a starting point (at least I know it can be done). After searching MSDN, I found the criteria that makes stepping into the transform possible. They are listed here. In short: the XML and the XSLT must be loaded via a class that has the IXmlLineInfo interface (XmlReader & co.) the XML resolver used in the XSLTCompiledTransform constructor is file-based (XmlUriResolver should work). the stylesheet should be on the local machine or on the intranet (?) From what I can tell, I fit all these criteria, but it still doesn't work. The relevant code samples are posted below: // [...] xslTransform = new XslCompiledTransform(true); xslTransform.Load(XmlReader.Create(new StringReader(contents)), null, new BaseUriXmlResolver(xslLocalPath)); // [...] // I already had the xml loaded in an xmlDocument // so I have to convert to an XmlReader XmlTextReader r = new XmlTextReader(new StringReader(xmlDoc.OuterXml)); XsltArgumentList xslArg = new XsltArgumentList(); xslArg.AddExtensionObject("urn:[...]", new [...]()); xslTransform.Transform(r, xslArg, context.Response.Output); I really don't get what I'm doing wrong. I've checked the interfaces on both XmlReader objects and they implement the required one. Also, BaseUriXmlResolver inherits from XmlUriResolver and the stylesheet is stored locally. The screenshot below is what I get when stepping into the Transform function. First I can see the stylesheet code after stepping through the parameters (on template-match), I get this: If anyone has any idea why it doesn't work or has an alternative way of getting it to work I'd be much obliged :). Thanks, Alex

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• Howto - Running Redmine on mongrel as a service on windows

  - by Achilles

  I use Redmine on Mongrel as a project manager and I use a batch file (start-redmine.bat) to start the redmine in mongrel. There are 2 issues with my setup: 1. I have a running IIS on the server that occupies the HTTP port (80) 2. The start-redmine.bat must be periodically checked to see if it's stopped after a restart that is caused by windows update service. for the first issue, I have no choice but running mongrel on a port like 3000 and for the second issue I have to create a windows service that runs automatically in the background when the windows starts; and here comes the trouble! There are at least 3 ways to run redmine as a service that I'm aware of; none of them can satisfy a performance view on this subject. you may read about them on http://stackoverflow.com/questions/877943/how-to-configure-a-rails-app-redmine-to-run-as-a-service-on-windows I tried them all. The easiest way to setup such a service is using mongrel_service approach; in 3 lines of command you're done. but the performance is significantly lower than running that batch file... Now, I wanna show you my approach: First suppose we have ruby installed into c:\ruby and we have issued the command gem install mongrel to get the mongrel gem installed into c:\ruby\bin Also, suppose we have installed the Redmine into a folder like c:\redmine; and we have ruby's path (i.e. c:\ruby\bin) in our PATH environment variable. Now Download and install the Windows NT Resource Kit Tools from microsoft website. Open the command-line tool that comes with the Resource Kit (from start menu). Use instsrv to install a dummy service called Redmine using the following command: "[path-to-instsrv.exe]\instsrv" Redmine "[path-to-srvany.exe]\srvany.exe" in my case (which is the default case) it was something like this: "C:\Program Files\Windows Resource Kits\Tools\instsrv" Redmine "C:\Program Files\Windows Resource Kits\Tools\srvany.exe" Now create the batch file. Open a notepad and paste these instructions into it and then save it as "c:\redmine\start-redmine.bat" @echo off cd c:\redmine\ mongrel_rails start -a 0.0.0.0 -p 3000 -e production Now we need to configure that dummy service we had created before. WATCH OUT WHAT YOU'RE DOING FROM HERE ON, OR YOU MAY CORRUPT YOUR WINDOWS. To configure that service, open windows registry editor (Start - Run - regedit) and navigate to this node: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Redmine Right-Click on "Redmine" node and using the context menu, create a new key called Parameters (New - Key) Right-Click on "Parameters" and create a String Value property called Application. Do this again and create another String Value called AppParameters. Now Double-click on "Application" and put cmd.exe into "Value data" section. Then Double-click on "AppParameters" and put /C "C:\redmine\start-redmine.bat" into Value data section. We're done! issue this command to run the redmine on mongrel as a service: net start Redmine

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• Build failing - VS2010 solution on TFS2008

  - by Nick

  I have migrated a VS2008 ASP.NET MVC solution to VS2010/MVC2/.NET 4.0 The solution builds locally and all unit tests pass. Our TFS server is still TFS2008 and I am having problems getting the CI build to pass. The projects all build successfully, the unit tests all run and pass but the Running Tests item fails. I followed this blog post on how to get the build working and I'm almost there. Combing the log file for failures I have found the following: Test Run Completed. Passed 1101 ------------ Total 1101 Results file: C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\TestResults\apptemetrybuild_ATT15DEV01 2010-04-27 09_09_59_Any CPU_Release.trx Test Settings: Default Test Settings Waiting to publish... Publishing results of test run apptemetrybuild@ATT15DEV01 2010-04-27 09:09:59_Any CPU_Release to http://att15tfs01:8080/... .....Publish completed successfully. Command: D:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\MSTest.exe /nologo /searchpathroot:"C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\Binaries\Release" /resultsfileroot:"C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\TestResults" /testcontainer:"C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\Binaries\Release\\Attenda.Stargate.Security.Tests.dll" /publish:"http://att15tfs01:8080/" /publishbuild:"vstfs:///Build/Build/149" /teamproject:"Client Portal 3" /platform:"Any CPU" /flavor:"Release" The "TestToolsTask" task is using "MSTest.exe" from "D:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\MSTest.exe". Loading C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\Binaries\Release\\Attenda.Stargate.Security.Tests.dll... C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\Binaries\Release\\Attenda.Stargate.Security.Tests.dll Could not load file or assembly 'file:///C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\Binaries\Release\Attenda.Stargate.Security.Tests.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. MSBUILD : warning MSB6006: "MSTest.exe" exited with code 1. [C:\Documents and Settings\apptemetrybuild\Local Settings\Temp\Client Portal 3\CI\BuildType\TFSBuild.proj] The previous error was converted to a warning because the task was called with ContinueOnError=true. Build continuing because "ContinueOnError" on the task "TestToolsTask" is set to "true". Done executing task "TestToolsTask" -- FAILED. It looks like it's trying to use the 2008 MSTest tool even though I have specified ToolsVersion="4.0" in the tfsbuild.proj and changed the MSBuildPath in the TfsBuildService.exe.config on the build server. Can anyone point me in the right direction to get this to build successfully? Many thanks, Nick

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• Right-click context menu for Java JTree?

  - by arcanex

  I'm trying to implement pop-up menus in Java JTree. I've sub-classed DefaultTreeCellRenderer (to change node appearance) and DefaultTreeCellEditor (to create Components to attach event listeners to, since apparently the Components that DefaultTreeCellRenderer.getTreeCellRendererComponent() returns can't do it?). I don't really want to "edit" the nodes, just be able to pop-up a menu when a node gets right-clicked, but this is the only way I can think of doing it right now... Below is the code that I have so far-- I'm just trying to figure out how to capture MouseEvents. It sort of works, but badly. What's a better way to accomplish what I'm trying to do here? private class My_TreeCellRenderer extends DefaultTreeCellRenderer { My_TreeCellRenderer() { super (); } public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) { super.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus); // set label text and tool tips setText(((My_Object)value).getTreeLabel()); setToolTipText(((My_Object)value).getTreeToolTip()); return this; } } private class My_TreeCellEditor extends DefaultTreeCellEditor { private MouseAdapter ma; My_TreeCellEditor(JTree tree, DefaultTreeCellRenderer renderer) { super (tree, renderer); ma = new MouseAdapter() { public void mousePressed(MouseEvent e) { if (e.isPopupTrigger()) { System.out.println("My Popup"); } } public void mouseReleased(MouseEvent e) { if (e.isPopupTrigger()) { System.out.println("My Popup"); } } }; } public Component getTreeCellEditorComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row) { String src_filename = null; // return non-editing component Component c = renderer.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, true); // add mouse listener if it's not listening already MouseListener mouseListeners[] = c.getMouseListeners(); int i; for (i=0; i < mouseListeners.length && mouseListeners[i] != ma; i++); if (i >= mouseListeners.length) c.addMouseListener(ma); return c; } protected boolean canEditImmediately(EventObject event) { if (event instanceof MouseEvent && ((MouseEvent)event).getClickCount() == 1) return true; else return false; } }

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• Django: What's an awesome plugin to maintain images in the admin?

  - by meder

  I have an articles entry model and I have an excerpt and description field. If a user wants to post an image then I have a separate ImageField which has the default standard file browser. I've tried using django-filebrowser but I don't like the fact that it requires django-grappelli nor do I necessarily want a flash upload utility - can anyone recommend a tool where I can manage image uploads, and basically replace the file browse provided by django with an imagepicking browser? In the future I'd probably want it to handle image resizing and specify default image sizes for certain article types. Edit: I'm trying out adminfiles now but I'm having issues installing it. I grabbed it and added it to my python path, added it to INSTALLED_APPS, created the databases for it, uploaded an image. I followed the instructions to modify my Model to specify adminfiles_fields and registered but it's not applying in my admin, here's my admin.py for articles: from django.contrib import admin from django import forms from articles.models import Category, Entry from tinymce.widgets import TinyMCE from adminfiles.admin import FilePickerAdmin class EntryForm( forms.ModelForm ): class Media: js = ['/media/tinymce/tiny_mce.js', '/media/tinymce/load.js']#, '/media/admin/filebrowser/js/TinyMCEAdmin.js'] class Meta: model = Entry class CategoryAdmin(admin.ModelAdmin): prepopulated_fields = { 'slug': ['title'] } class EntryAdmin( FilePickerAdmin ): adminfiles_fields = ('excerpt',) prepopulated_fields = { 'slug': ['title'] } form = EntryForm admin.site.register( Category, CategoryAdmin ) admin.site.register( Entry, EntryAdmin ) Here's my Entry model: class Entry( models.Model ): LIVE_STATUS = 1 DRAFT_STATUS = 2 HIDDEN_STATUS = 3 STATUS_CHOICES = ( ( LIVE_STATUS, 'Live' ), ( DRAFT_STATUS, 'Draft' ), ( HIDDEN_STATUS, 'Hidden' ), ) status = models.IntegerField( choices=STATUS_CHOICES, default=LIVE_STATUS ) tags = TagField() categories = models.ManyToManyField( Category ) title = models.CharField( max_length=250 ) excerpt = models.TextField( blank=True ) excerpt_html = models.TextField(editable=False, blank=True) body_html = models.TextField( editable=False, blank=True ) article_image = models.ImageField(blank=True, upload_to='upload') body = models.TextField() enable_comments = models.BooleanField(default=True) pub_date = models.DateTimeField(default=datetime.datetime.now) slug = models.SlugField(unique_for_date='pub_date') author = models.ForeignKey(User) featured = models.BooleanField(default=False) def save( self, force_insert=False, force_update= False): self.body_html = markdown(self.body) if self.excerpt: self.excerpt_html = markdown( self.excerpt ) super( Entry, self ).save( force_insert, force_update ) class Meta: ordering = ['-pub_date'] verbose_name_plural = "Entries" def __unicode__(self): return self.title Edit #2: To clarify I did move the media files to my media path and they are indeed rendering the image area, I can upload fine, the <<<image>>> tag is inserted into my editable MarkItUp w/ Markdown area but it isn't rendering in the MarkItUp preview - perhaps I just need to apply the |upload_tags into that preview. I'll try adding it to my template which posts the article as well.

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• What are the reasons why the CPU usage doesn’t go 100% with C# and APM?

  - by Martin

  I have an application which is CPU intensive. When the data is processed on a single thread, the CPU usage goes to 100% for many minutes. So the performance of the application appears to be bound by the CPU. I have multithreaded the logic of the application, which result in an increase of the overall performance. However, the CPU usage hardly goes above 30%-50%. I would expect the CPU (and the many cores) to go to 100% since I process many set of data at the same time. Below is a simplified example of the logic I use to start the threads. When I run this example, the CPU goes to 100% (on an 8/16 cores machine). However, my application which uses the same pattern doesn’t. public class DataExecutionContext { public int Counter { get; set; } // Arrays of data } static void Main(string[] args) { // Load data from the database into the context var contexts = new List<DataExecutionContext>(100); for (int i = 0; i < 100; i++) { contexts.Add(new DataExecutionContext()); } // Data loaded. Start to process. var latch = new CountdownEvent(contexts.Count); var processData = new Action<DataExecutionContext>(c => { // The thread doesn't access data from a DB, file, // network, etc. It reads and write data in RAM only // (in its context). for (int i = 0; i < 100000000; i++) c.Counter++; }); foreach (var context in contexts) { processData.BeginInvoke(context, new AsyncCallback(ar => { latch.Signal(); }), null); } latch.Wait(); } I have reduced the number of locks to the strict minimum (only the latch is locking). The best way I found was to create a context in which a thread can read/write in memory. Contexts are not shared among other threads. The threads can’t access the database, files or network. In other words, I profiled my application and I didn’t find any bottleneck. Why the CPU usage of my application doesn’t go about 50%? Is it the pattern I use? Should I create my own thread instead of using the .Net thread pool? Is there any gotchas? Is there any tool that you could recommend me to find my issue? Thanks!

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• Instruments memory leak iphone

  - by dubbeat

  Hi, I posted this problem a few days ago but it was very muddled and my question wasnt very clear so I removed it. I've been digging around and the memory leak is still persiting. Hopefully this attempt will be clearer. First off I've run the static analyzer and it reports no memory leaks. I then ran Instruments and it pointed to a memory leak at this line of code. As far as I can see there is no memory leak. featured=[[UILabel alloc]initWithFrame:CGRectMake(130,15, 200, 15)]; //[featured setFont:[UIFont UIFontboldSystemFontOfSize:20]]; featured.font = [UIFont boldSystemFontOfSize:20]; featured.backgroundColor= [UIColor clearColor]; featured.textColor=[UIColor blackColor]; featured.text= @"Featured Promo"; [self.view addSubview:featured]; [featured release]; featured=nil; If I comment out the above code Instruments reports another memory leak in another block of code where there is no discernible leak. UIButton *populartbutton = [[UIButton buttonWithType:UIButtonTypeRoundedRect]]; populartbutton.frame = CGRectMake(112, 145, 90, 22); // size and position of button [populartbutton setTitle:@"Popular" forState:UIControlStateNormal]; populartbutton.backgroundColor = [UIColor clearColor]; populartbutton.adjustsImageWhenHighlighted = YES; [populartbutton addTarget:self action:@selector(getpopular:) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:populartbutton]; Instruments also says Responsible Library = Core Graphics Responsible Frame = open_handle_to_dylib_path This Is the stack trace. 53 Promo start 52 Promo main /Users/..2/main.m:14 51 UIKit UIApplicationMain 50 UIKit -[UIApplication _run] 49 CoreFoundation CFRunLoopRunInMode 48 CoreFoundation CFRunLoopRunSpecific 47 GraphicsServices PurpleEventCallback 46 UIKit _UIApplicationHandleEvent 45 UIKit -[UIApplication sendEvent:] 44 UIKit -[UIApplication handleEvent:withNewEvent:] 43 UIKit -[UIApplication _reportAppLaunchFinished] 42 QuartzCore CA::Transaction::commit() 41 QuartzCore CA::Context::commit_transaction(CA::Transaction*) 40 QuartzCore CALayerLayoutIfNeeded 39 QuartzCore -[CALayer layoutSublayers] 38 UIKit -[UILayoutContainerView layoutSubviews] 37 UIKit -[UINavigationController _startDeferredTransitionIfNeeded] 36 UIKit -[UINavigationController _startTransition:fromViewController:toViewController:] 35 UIKit -[UINavigationController _layoutViewController:] 34 UIKit -[UINavigationController_computeAndApplyScrollContentInsetDeltaForViewController:] 33 UIKit -[UIViewController contentScrollView] 32 UIKit -[UIViewController view] 31 Promo -[FeaturedLevelViewController viewDidLoad] /Users/..s/FeaturedLevelViewController.m:67 // THIS IS MY CLASS WHERE THE CODE SAMPLES ABOVE ARE FROM 30 UIKit -[UILabel initWithFrame:] 29 UIKit -[UILabel _commonInit] 28 UIKit +[UILabel defaultFont] 27 UIKit +[UIFont systemFontOfSize:] 26 GraphicsServices GSFontCreateWithName 25 CoreGraphics CGFontCreateWithName 24 CoreGraphics CGFontCreateWithFontName 23 CoreGraphics CGFontFinderGetDefault 22 CoreGraphics CGFontGetVTable 21 libSystem.B.dylib pthread_once 20 CoreGraphics load_vtable 19 CoreGraphics load_library 18 CoreGraphics CGLibraryLoadFunction 17 CoreGraphics load_function 16 CoreGraphics open_handle_to_dylib_path 15 libSystem.B.dylib dlopen 14 dyld dlopen 13 dyld dyld::link(ImageLoader*, bool, ImageLoader::RPathChain const&) 12 dyld ImageLoader::link(ImageLoader::LinkContext const&, bool, bool, ImageLoader::RPathChain const&) 11 dyld ImageLoader::recursiveLoadLibraries(ImageLoader::LinkContext const&, bool, ImageLoader::RPathChain const&) 10 dyld dyld::libraryLocator(char const*, bool, char const*, ImageLoader::RPathChain const*) 9 dyld dyld::load(char const*, dyld::LoadContext const&) 8 dyld dyld::loadPhase0(char const*, dyld::LoadContext const&, std::vector<char const*, std::allocator<char const*> >*) 7 dyld dyld::loadPhase1(char const*, dyld::LoadContext const&, std::vector<char const*, std::allocator<char const*> >*) 6 dyld dyld::loadPhase3(char const*, dyld::LoadContext const&, std::vector<char const*, std::allocator<char const*> >*) 5 dyld dyld::loadPhase4(char const*, dyld::LoadContext const&, std::vector<char const*, std::allocator<char const*> >*) 4 dyld dyld::loadPhase5(char const*, dyld::LoadContext const&, std::vector<char const*, std::allocator<char const*> >*) 3 dyld dyld::mkstringf(char const*, ...) 2 dyld strdup 1 dyld malloc 0 libSystem.B.dylib malloc I'm really not too sure how to use this information to fix the problem so any guidance would be appreciated. Perhaps the answer is in the trace but I just don't know what to look for? EDIT:: The above stack trace is when running on the simulator. The following is from running on a device. This trace does not point to any of my own classes 23 Promo 0x0 22 libSystem.B.dylib _pthread_body 21 Foundation __NSThread__main__ 20 Foundation +[NSThread exit] 19 libSystem.B.dylib _pthread_exit 18 libSystem.B.dylib _pthread_tsd_cleanup 17 QuartzCore CA::Transaction::release_thread(void*) 16 QuartzCore CA::Transaction::commit() 15 QuartzCore CA::Context::commit_transaction(CA::Transaction*) 14 QuartzCore CALayerDisplayIfNeeded 13 QuartzCore -[CALayer display] 12 QuartzCore -[CALayer _display] 11 QuartzCore CABackingStoreUpdate 10 QuartzCore backing_callback(CGContext*, void*) 9 QuartzCore -[CALayer drawInContext:] 8 UIKit -[UIView(CALayerDelegate) drawLayer:inContext:] 7 UIKit -[UILabel drawRect:] 6 UIKit -[UILabel drawTextInRect:] 5 UIKit -[UILabel _drawTextInRect:baselineCalculationOnly:] 4 UIKit -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:] 3 UIKit -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:letterSpacing:includeEmoji:] 2 WebCore WKSetCurrentGraphicsContext 1 WebCore CurrentThreadContext() 0 libSystem.B.dylib calloc

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• Installing Fabric On Windows (Error No Module Called Readline)

  - by Jon

  I'm trying to use the Fabric 0.1.1 deploy tool (http://docs.fabfile.org/) on Windows and we're running into an issue with the readline module. I've been through various threads but can't seem to solve the issue. It's important because we can't deploy applications from Windows based machines. C:\Documents and Settings\dev\Desktop\deploy>fab Traceback (most recent call last): File "C:\python\Scripts\fab-script.py", line 8, in <module> load_entry_point('fabric==0.1.1', 'console_scripts', 'fab')() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 277, in load_entry_point File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 2180, in load_entry_point File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 1913, in load File "build\bdist.win32\egg\fabric.py", line 25, in <module> **ImportError: No module named readline** Installing the module results in: **easy_install readline** Searching for readline Reading http://pypi.python.org/simple/readline/ Reading http://www.python.org/ Best match: readline 2.6.4 Downloading http://pypi.python.org/packages/source/r/readline/readline-2.6.4.tar .gz#md5=7568e8b78f383443ba57c9afec6f4285 Processing readline-2.6.4.tar.gz Running readline-2.6.4\setup.py -q bdist_egg --dist-dir c:\docume~1\ji81b9~1.che \locals~1\temp\easy_install-pzkz1a\readline-2.6.4\egg-dist-tmp-szs2ps Traceback (most recent call last): File "C:\python\Scripts\easy_install-script.py", line 8, in <module> load_entry_point('setuptools==0.6c9', 'console_scripts', 'easy_install')() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1671, in main File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1659, in with_ei_usage File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1675, in <lambda> File "c:\python\lib\distutils\core.py", line 152, in setup dist.run_commands() File "c:\python\lib\distutils\dist.py", line 975, in run_commands self.run_command(cmd) File "c:\python\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 211, in run File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 446, in easy_install File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 476, in install_item File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 655, in install_eggs File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 930, in build_and_install File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 919, in run_setup File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 27, in run_setup File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 63, in run File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 29, in <lambda> File "setup.py", line 93, in <module> AttributeError: 'module' object has no attribute 'symlink' Has anybody solved this issue or can anybody suggest a workaround?

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• MongoMapper and migrations

  - by Clint Miller

  I'm building a Rails application using MongoDB as the back-end and MongoMapper as the ORM tool. Suppose in version 1, I define the following model: class SomeModel include MongoMapper::Document key :some_key, String end Later in version 2, I realize that I need a new required key on the model. So, in version 2, SomeModel now looks like this: class SomeModel include MongoMapper::Document key :some_key, String key :some_new_key, String, :required => true end How do I migrate all my existing data to include some_new_key? Assume that I know how to set a reasonable default value for all the existing documents. Taking this a step further, suppose that in version 3, I realize that I really don't need some_key at all. So, now the model looks like this class SomeModel include MongoMapper::Document key :some_new_key, String, :required => true end But all the existing records in my database have values set for some_key, and it's just wasting space at this point. How do I reclaim that space? With ActiveRecord, I would have just created migrations to add the initial values of some_new_key (in the version1 - version2 migration) and to delete the values for some_key (in the version2 - version3 migration). What's the appropriate way to do this with MongoDB/MongoMapper? It seems to me that some method of tracking which migrations have been run is still necessary. Does such a thing exist? EDITED: I think people are missing the point of my question. There are times where you want to be able to run a script on a database to change or restructure the data in it. I gave two examples above, one where a new required key was added and one where a key can be removed and space can be reclaimed. How do you manage running these scripts? ActiveRecord migrations give you an easy way to run these scripts and to determine what scripts have already been run and what scripts have not been run. I can obviously write a Mongo script that does any update on the database, but what I'm looking for is a framework like migrations that lets me track which upgrade scripts have already been run.

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• QueryInterface fails at casting inside COM-interface implementation

  - by brecht

  I am creating a tool in c# to retrieve messages of a CAN-network (network in a car) using an Dll written in C/C++. This dll is usable as a COM-interface. My c#-formclass implements one of these COM-interfaces. And other variables are instantiated using these COM-interfaces (everything works perfect). The problem: The interface my C#-form implements has 3 abstract functions. One of these functions is called -by the dll- and i need to implement it myself. In this function i wish to retrieve a property of a form-wide variable that is of a COM-type. The COM library is CANSUPPORTLib The form-wide variable: private CANSUPPORTLib.ICanIOEx devices = new CANSUPPORTLib.CanIO(); This variable is also form-wide and is retrieved via the devices-variable: canreceiver = (CANSUPPORTLib.IDirectCAN2)devices.get_DirectDispatch(receiverLogicalChannel); The function that is called by the dll and implemented in c# public void Message(double dTimeStamp) { Console.WriteLine("!!! message ontvangen !!!" + Environment.NewLine); try { CANSUPPORTLib.can_msg_tag message = new CANSUPPORTLib.can_msg_tag(); message = (CANSUPPORTLib.can_msg_tag) System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); for (int i = 0; i < message.data.Length; i++) { Console.WriteLine("byte " + i + ": " + message.data[i]); } } catch (Exception e) { Console.WriteLine(e.Message); } } The error rises at this line: message = (CANSUPPORTLib.can_msg_tag)System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); Error: Unable to cast COM object of type 'System.__ComObject' to interface type 'CANSUPPORTLib.IDirectCAN2'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{33373EFC-DB42-48C4-A719-3730B7F228B5}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). Notes: It is possible to have a timer-clock that checks every 100ms for the message i need. The message is then retrieved in the exact same way as i do now. This timer is started when the form starts. The checking is only done when Message(double) has put a variable to true (a message arrived). When the timer-clock is started in the Message function, i have the same error as above Starting another thread when the form starts, is also not possible. Is there someone with experience with COM-interop ? When this timer

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• Driving me INSANE: Unable to Retrieve Metadata for

  - by Loren

  I've been spending the past 3 days trying to fix this problem I'm encountering - it's driving me insane... I'm not quite sure what is causing this bug - here are the details: MVC4 + Entity Framework 4.4 + MySql + POCO/Code First I'm setting up the above configuration .. here are my classes: namespace BTD.DataContext { public class BTDContext : DbContext { public BTDContext() : base("name=BTDContext") { } protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); //modelBuilder.Conventions.Remove<System.Data.Entity.Infrastructure.IncludeMetadataConvention>(); } public DbSet<Product> Products { get; set; } public DbSet<ProductImage> ProductImages { get; set; } } } namespace BTD.Data { [Table("Product")] public class Product { [Key] public long ProductId { get; set; } [DisplayName("Manufacturer")] public int? ManufacturerId { get; set; } [Required] [StringLength(150)] public string Name { get; set; } [Required] [DataType(DataType.MultilineText)] public string Description { get; set; } [Required] [StringLength(120)] public string URL { get; set; } [Required] [StringLength(75)] [DisplayName("Meta Title")] public string MetaTitle { get; set; } [DataType(DataType.MultilineText)] [DisplayName("Meta Description")] public string MetaDescription { get; set; } [Required] [StringLength(25)] public string Status { get; set; } [DisplayName("Create Date/Time")] public DateTime CreateDateTime { get; set; } [DisplayName("Edit Date/Time")] public DateTime EditDateTime { get; set; } } [Table("ProductImage")] public class ProductImage { [Key] public long ProductImageId { get; set; } public long ProductId { get; set; } public long? ProductVariantId { get; set; } [Required] public byte[] Image { get; set; } public bool PrimaryImage { get; set; } public DateTime CreateDateTime { get; set; } public DateTime EditDateTime { get; set; } } } Here is my web.config setup... <connectionStrings> <add name="BTDContext" connectionString="Server=localhost;Port=3306;Database=btd;User Id=root;Password=mypassword;" providerName="MySql.Data.MySqlClient" /> </connectionStrings> The database AND tables already exist... I'm still pretty new with mvc but was using this tutorial The application builds fine.. however when I try to add a controller using Product (BTD.Data) as my model class and BTDContext (BTD.DataContext) as my data context class I receive the following error: Unable to retrieve metadata for BTD.Data.Product using the same DbCompiledModel to create context against different types of database servers is not supported. Instead, create a separate DbCompiledModel for each type of server being used. I am at a complete loss - I've scoured google with almost every different variation of that error message above I can think of but to no avail. Here are the things i can verify... MySql is working properly I'm using MySql Connector version 6.5.4 and have created other ASP.net web forms + entity framework applications with ZERO problems I have also tried including/removing this in my web.config: <system.data> <DbProviderFactories> <remove invariant="MySql.Data.MySqlClient"/> <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.5.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /> </DbProviderFactories> I've literally been working on this bug for days - I'm to the point now that I would be willing to pay someone to solve it.. no joke... I'd really love to use MVC 4 and Razor - I was so excited to get started on this, but now i'm pretty discouraged - I truly appreciate any help/guidance on this! Also note - i'm using Entityframework from Nuget... Another Note I was using the default visual studio template that creates your MVC project with the account pages and other stuff. I JUST removed all references to the added files because they were trying to use the "DefaultConnection" which didn't exist - so i thought those files may be what was causing the error - however still no luck after removing them - I just wanted to let everyone know i'm using the visual studio MVC project template which pre-creates a bunch of files. I will be trying to recreate this all from a blank MVC project which doesn't have those files - i will update this once i test that Other References It appears someone else is having the same issues I am - the only difference is they are using sql server - I tried tweaking all my code to follow the suggestions on this stackoverflow question/answer here but still to no avail

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• ASP.net Ajax tab container not appearing

  - by Eyla

  I created new web project using VS 2008 with enabled Ajax template with C# and Framework 3.5. I added Ajax reference to the project and I can see all Ajax toolkit in my tool box. The problem that when I add tab container with Tab Panels then run the projects nothing appear on the browser and I tried few browsers. I'm including my code and I wish that someone would help me. Regards, My Code: ................................................................ <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Contacts._Default" %> <%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %> <!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>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <div> <asp:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="0"> <asp:TabPanel runat="server" HeaderText="TabPanel1" ID="TabPanel1"> <ContentTemplate> tab 1 </ContentTemplate> </asp:TabPanel> <asp:TabPanel runat="server" HeaderText="TabPanel2" ID="TabPanel2"> <ContentTemplate> tab 2 </ContentTemplate> </asp:TabPanel> <asp:TabPanel runat="server" HeaderText="TabPanel3" ID="TabPanel3"> <ContentTemplate> tab 3 </ContentTemplate> </asp:TabPanel> </asp:TabContainer> </div> </form> </body> </html>

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• Reliable way of generating unique hardware ID

  - by mr.b

  Question: what's the best way to accomplish following. I have to come up with unique ID for each networked client, such that: it (ID) should persist once client software is installed on target computer, and should continue to persist if software is re-installed on same computer and same OS installment, it should not change if hardware configuration is modified in most ways (except changing the motherboard) When hard drive with client software installed is cloned to another computer with identical hardware configuration (or, as similar as possible), client software should be aware of that change. A little bit of explanation and some back-story: This question is basically age old question that also touches topic of software copy-protection, as some of mechanisms used in that area are mentioned here. I should be clear at this point that I'm not looking for a copy-protection scheme. Please, read on. :) I'm working on a client-server software that is supposed to work in local network. One of problems I have to solve is to identify each unique client in network (not so much of a problem), so that I can apply certain attributes to every specific client, retain and enforce those attributes during deployment lifetime of a specific client. While I was looking for a solution, I was aware of following: Windows activation system uses some kind of heavy fingerprinting mechanism, that is extremely sensitive to hardware modifications, Disk imaging software copies along all Volume IDs (tied to each partition when formatted), and custom, uniquely generated IDs during installation process, during first run, or in any other way, that is strictly software in its nature, and stored in registry or on hard drive, so it's very easy to confuse two Obvious choice for this kind of problem would be to find out BIOS identifiers (not 100% sure if this is unique through identical motherboard models, though), as that's the only thing I can rely on, that isn't duplicated, transferred by cloning, and that can't be changed (at least not by using some user-space program). Everything else fails as either being not reliable (MAC cloning, anyone?), or too demanding (in terms that it's too sensitive to configuration changes). Am I missing something obvious here? Sub-question that I'd like to ask is, am I doing it correctly, architecture-wise? Perhaps there is a better tool for task that I have to accomplish... Another approach I had in mind is something similar to handshake mechanism, where server maintains internal lookup table of connected client IDs (which can be even completely software-based and non-unique at any given moment), and tells client to come up with different ID during handshake, if duplicate ID is provided upon connection. That approach, unfortunately, doesn't play nicely with one of requirements to tie attributes to specific client during lifetime.

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• activeX component in axapta

  - by Nico

  hi folks, i'm struggling with an .net activeX i try to use in ms axapta 2009. using this component on my local machine where it was compiled, it's working quite fine. it can be added as activeX element on a form, the methods and events are listed in the axapta-activeX-explorer and i can interact with it without any problems. but trying to distribute the dll to other clients isn't working as intended. the registration of the dll via regasm /codebase /tlb works properly - getting the message, registration was successful. the component is also listed when selecting an activeX-element to add in ax, but neither functions nor properties are listed. and launching the form results in an errormessage - activeX component CLSID ... not found on system, not installed. the classID is indeed the one, defined in .net. strange things happen, having a look on the task-manager. the activeX-component itself is just a wrapper to interact with a com-application. when launching the ax-form with the not working and _not_installed_!! activeX-thing, the taskmanager shows a new process of the com-application, which is instanciated by the activeX :/ things i tried: using different versions of regasm, eg \Windows\Microsoft.NET\Framework\v2.0.50727 ; C:\Windows\Microsoft.NET\Framework64\v2.0.50727 using new GUIDs in .net, prior removing the old ones from the registry compiling, using different versions of the .net framework doing registration via regasm, regasm /codebase, regasm /codebase /tlb, using a visual-studio-setup running registration via command-line as administrator running setup as administrator running even ax as administrator on client-machine moving dll to a different folder followed by new registration ( windows/system32; ax/client/bin ) installing to GAC ( gacutil /i ) different project-options in visual studio ( COM-Visibility; register for COM-Interop; different targetPlatform ) hoped for the fact, that compiling in visual studio with register for COM-Interop option enabled does something more than just the regasm-registration, i used a registry-monitor-microsoft-tool for logging the registry-activity which happend during compilation. using these logs to create all registry-entries on the target-client in addition didn't work either. any hints or help would be so much appreciated! this thing is blocking me for days now :(

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• Connection Error using NHibernate 3.0 with Oracle

  - by Olu Lawrence

  I'm new to NHibernate. My first attempt is to configure and establish connection to Oracle 11.1g using ODP. For this test, I use a test fixture, but I get the following error: Inner exception: "Object reference not set to an instance of an object." Outer exception: Could not create the driver from NHibernate.Driver.OracleDataClientDriver. The test script is shown below: using IBCService.Models; using NHibernate.Cfg; using NHibernate.Tool.hbm2ddl; using NUnit.Framework; namespace IBCService.Tests { [TestFixture] public class GenerateSchema_Fixture { [Test] public void Can_generate_schema() { var cfg = new Configuration(); cfg.Configure(); cfg.AddAssembly(typeof(Product).Assembly); var fac = new SchemaExport(cfg); fac.Execute(false, true, false); } } } The exception occurs at the last line: fac.Execute(false, true, false); The NHibernate config is shown: <?xml version="1.0" encoding="utf-8"?> <!-- This config use Oracle Data Provider (ODP.NET) --> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2" > <session-factory name="IBCService.Tests"> <property name="connection.driver_class"> NHibernate.Driver.OracleDataClientDriver </property> <property name="connection.connection_string"> User ID=TEST;Password=test;Data Source=//RAND23:1521/RAND.PREVALENT.COM </property> <property name="connection.provider"> NHibernate.Connection.DriverConnectionProvider </property> <property name="show_sql">false</property> <property name="dialect">NHibernate.Dialect.Oracle10gDialect</property> <property name="query.substitutions"> true 1, false 0, yes 'Y', no 'N' </property> <property name="proxyfactory.factory_class"> NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu </property> </session-factory> </hibernate-configuration> Now, if I change the NHibernate.Driver.OracleDataClientDriver to NHibernate.Driver.OracleClientDriver (Microsoft provider for Oracle), the test succeed. Once switched back to Oracle provider, whichever version, the test fails with the error stated earlier. I've spent 3 days already trying to figure out what is not in order without success. I hope someone out there could provide useful info on what I am doing wrong.

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• javascript problem on tab control

  - by mahfuz

  my tab control have four itmes. Each tab item are individual usercontrol and they have javascript method.*But always tab item1 index=0 works well*,rest of item javascript don't work.But individually they work well ,problem arise when i put them in tab control.*when i click rest of tab items javascript function Tab item1 index=0 ascx* page always load . server side event C# code works well for all tab items.....How to solve this problem .....What's the problem is? i use devespress tool ..... <table> <tr> <td> <dxtc:ASPxPageControl Width="500px" ID="ASPxPageControl1" runat="server" ActiveTabIndex="0" EnableCallbackCompression="True" EnableHierarchyRecreation="True" AutoPostBack="True"> <TabPages> <dxtc:TabPage Text="Charge Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl1" runat="server"> <uc1:UCConfig_Charge_Company_Wise ID="UCConfig_Charge_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Depository Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl3" runat="server"> <uc2:UCConfig_Charge_Depository_Company_Wise ID="UCConfig_Charge_Depository_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Investor Charge "> <ContentCollection> <dxw:ContentControl ID="ContentControl5" runat="server"> <uc4:UCConfig_Investor_Account_Wise_Charge ID="UCConfig_Investor_Account_Wise_Charge" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Operation Mode "> <ContentCollection> <dxw:ContentControl ID="ContentControl4" runat="server"> <uc3:UCconfig_charge_operation_mode ID="UCconfig_charge_operation_mode" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> </TabPages> </dxtc:ASPxPageControl> </td> </tr> </table> my first tab control item works well.but rest of them create problem.i need to call javascript all of them but calling javascript from others create problem ,they show me bellow error Microsoft JScript runtime error: 'this.GetStateInput().value' is null or not an object

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• Tactics for using PHP in a high-load site

  - by Ross

  Before you answer this I have never developed anything popular enough to attain high server loads. Treat me as (sigh) an alien that has just landed on the planet, albeit one that knows PHP and a few optimisation techniques. I'm developing a tool in PHP that could attain quite a lot of users, if it works out right. However while I'm fully capable of developing the program I'm pretty much clueless when it comes to making something that can deal with huge traffic. So here's a few questions on it (feel free to turn this question into a resource thread as well). Databases At the moment I plan to use the MySQLi features in PHP5. However how should I setup the databases in relation to users and content? Do I actually need multiple databases? At the moment everything's jumbled into one database - although I've been considering spreading user data to one, actual content to another and finally core site content (template masters etc.) to another. My reasoning behind this is that sending queries to different databases will ease up the load on them as one database = 3 load sources. Also would this still be effective if they were all on the same server? Caching I have a template system that is used to build the pages and swap out variables. Master templates are stored in the database and each time a template is called it's cached copy (a html document) is called. At the moment I have two types of variable in these templates - a static var and a dynamic var. Static vars are usually things like page names, the name of the site - things that don't change often; dynamic vars are things that change on each page load. My question on this: Say I have comments on different articles. Which is a better solution: store the simple comment template and render comments (from a DB call) each time the page is loaded or store a cached copy of the comments page as a html page - each time a comment is added/edited/deleted the page is recached. Finally Does anyone have any tips/pointers for running a high load site on PHP. I'm pretty sure it's a workable language to use - Facebook and Yahoo! give it great precedence - but are there any experiences I should watch out for? Thanks, Ross

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• How to construct a flowchart/storyboard in a Func Spec

  - by PeterQ

  Hey I'm a bit embarrassed to write a post on this topic, but I would appreciate the help. At my school, the CS kids (myself included) have created a nice, little program that is built for incoming Chem/Bio students. It consists of several modules that reviews topics they should have a firm grasp on before they start their classes. It's a nice tool since it cuts down on reviewing the material in class but also allows the students to do a quick diagnostic to fix any problems. Now, I'm in charge of constructing a simple interface that reports on the progress of the group and individual students. The interface is pretty simple. It's just a window that pops up, and it has three tabs: the first tab is a "cumulative" report of all of students. The secnod tab has a drop down box that lists the students and once a student is selected, a report for him/her comes up. And the third tab is simply a description of all of the terms used in the 1st and 2nd tabs. Now, I'm trying to be a good CS student and write a func. spec for my interface. My problem comes with the fact that I'd like to insert a little flowchart using Visio. Problem is, and I'm quite embarrassed to admit this, I don't know how to construct the flowchart/storyboard. For instance, I know I start with a "Start/Click Icon" in a rectangle. Then where do I go? Do I draw three arrrows (one going to each tab) and then describing what goes on? In tab one, the only thing that happens is that the user will select a "sort" method in the drop down box. This will sort the list. The End. Similarly, if the user selects the second tab, then he will go to a drop down box with the student names. Selecting a name will bring up student info. And the third tab is just a list of unfamiliar terms coming from the first or second tab. I wanted to storyboard/flowchart what I'm doing, but I'm unclear how to go about it. Any help would be appreciated! (Just to clarify, I'm not having trouble with using Visio, but I don't know how one goes about construct a storyboard or determining the procedure for constructing one)

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• Subversion vision and roadmap

  - by gbjbaanb

  Recently C Michael Pilato of the core subversion team posted a mail to the subversion dev mailing list suggesting a vision and roadmap for the future of Subversion. Naturally, he wanted as much feedback and response as possible which is why I'm posting this here - to elicit some suggestions and contributions from you, the users of Subversion. Any comments are welcome, and I shall feedback a synopsis with a link to this question to the dev mailing list. Similarly, I've created a post on ServerFault to get feedback from the administator side of things too. So, without further ado: Vision The first thing on his "vision statement" is: Subversion has no future as a DVCS tool. Let's just get that out there. At least two very successful such tools exist already, and to squeeze another horse into that race would be a poor investment of energy and talent. There's no need to suggest distributed features for subversion. If you want a DVCS, there should be no ill-feeling if you migrate to Git, Mercurial or Bazaar. As he says, its pointless trying to make SVN like them when they already exist, especially when there are different usage patterns that SVN should be targetting. The vision for Subversion is: Subversion exists to be universally recognized and adopted as an open-source, centralized version control system characterized by its reliability as a safe haven for valuable data; the simplicity of its model and usage; and its ability to support the needs of a wide variety of users and projects, from individuals to large-scale enterprise operations. Roadmap Several ideas were suggested as being "very nice to have" and are offered as the starting point of a future roadmap. These are: Obliterate Shelve/Checkpoint Repository-dictated Configuration Rename Tracking Improved Merging Improved Tree Conflict Handling Enterprise Authentication Mechanisms Forward History Searching Log Message Templates If anyone has suggestions to add, or comments on these, the subversion community would welcome all of them. Community And lastly, there was a call for more people to become involved with Subversion development. As with most OSS projects it can be daunting to join, but there is now a push for more to be done to help. If you feel like you can contribute, please do so.

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• SubSonic 2.x now supports TVP's - SqlDbType.Structure / DataTables for SQL Server 2008

  - by ElHaix

  For those interested, I have now modified the SubSonic 2.x code to recognize and support DataTable parameter types. You can read more about SQL Server 2008 features here: http://download.microsoft.com/download/4/9/0/4906f81b-eb1a-49c3-bb05-ff3bcbb5d5ae/SQL%20SERVER%202008-RDBMS/T-SQL%20Enhancements%20with%20SQL%20Server%202008%20-%20Praveen%20Srivatsav.pdf What this enhancement will now allow you to do is to create a partial StoredProcedures.cs class, with a method that overrides the stored procedure wrapper method. A bit about good form: My DAL has no direct table access, and my DB only has execute permissions for that user to my sprocs. As such, SubSonic only generates the AllStructs and StoredProcedures classes. The SPROC: ALTER PROCEDURE [dbo].[testInsertToTestTVP] @UserDetails TestTVP READONLY, @Result INT OUT AS BEGIN SET NOCOUNT ON; SET @Result = -1 --SET IDENTITY_INSERT [dbo].[tbl_TestTVP] ON INSERT INTO [dbo].[tbl_TestTVP] ( [GroupInsertID], [FirstName], [LastName] ) SELECT [GroupInsertID], [FirstName], [LastName] FROM @UserDetails IF @@ROWCOUNT > 0 BEGIN SET @Result = 1 SELECT @Result RETURN @Result END --SET IDENTITY_INSERT [dbo].[tbl_TestTVP] OFF END The TVP: CREATE TYPE [dbo].[TestTVP] AS TABLE( [GroupInsertID] [varchar](50) NOT NULL, [FirstName] [varchar](50) NOT NULL, [LastName] [varchar](50) NOT NULL ) GO The the auto gen tool runs, it creates the following erroneous method: /// <summary> /// Creates an object wrapper for the testInsertToTestTVP Procedure /// </summary> public static StoredProcedure TestInsertToTestTVP(string UserDetails, int? Result) { SubSonic.StoredProcedure sp = new SubSonic.StoredProcedure("testInsertToTestTVP", DataService.GetInstance("MyDAL"), "dbo"); sp.Command.AddParameter("@UserDetails", UserDetails, DbType.AnsiString, null, null); sp.Command.AddOutputParameter("@Result", DbType.Int32, 0, 10); return sp; } It sets UserDetails as type string. As it's good form to have two folders for a SubSonic DAL - Custom and Generated, I created a StoredProcedures.cs partial class in Custom that looks like this: /// <summary> /// Creates an object wrapper for the testInsertToTestTVP Procedure /// </summary> public static StoredProcedure TestInsertToTestTVP(DataTable dt, int? Result) { DataSet ds = new DataSet(); SubSonic.StoredProcedure sp = new SubSonic.StoredProcedure("testInsertToTestTVP", DataService.GetInstance("MyDAL"), "dbo"); // TODO: Modify the SubSonic code base in sp.Command.AddParameter to accept // a parameter type of System.Data.SqlDbType.Structured, as it currently only accepts // System.Data.DbType. //sp.Command.AddParameter("@UserDetails", dt, System.Data.SqlDbType.Structured null, null); sp.Command.AddParameter("@UserDetails", dt, SqlDbType.Structured); sp.Command.AddOutputParameter("@Result", DbType.Int32, 0, 10); return sp; } As you can see, the method signature now contains a DataTable, and with my modification to the SubSonic framework, this now works perfectly. I'm wondering if the SubSonic guys can modify the auto-gen to recognize a TVP in a sproc signature, as to avoid having to re-write the warpper? Does SubSonic 3.x support Structured data types? Also, I'm sure many will be interested in using this code, so where can I upload the new code? Thanks.

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• XML: Process large data

  - by Atmocreations

  Hello What XML-parser do you recommend for the following purpose: The XML-file (formatted, containing whitespaces) is around 800 MB. It mostly contains three types of tag (let's call them n, w and r). They have an attribute called id which i'd have to search for, as fast as possible. Removing attributes I don't need could save around 30%, maybe a bit more. First part for optimizing the second part: Is there any good tool (command line linux and windows if possible) to easily remove unused attributes in certain tags? I know that XSLT could be used. Or are there any easy alternatives? Also, I could split it into three files, one for each tag to gain speed for later parsing... Speed is not too important for this preparation of the data, of course it would be nice when it took rather minutes than hours. Second part: Once I have the data prepared, be it shortened or not, I should be able to search for the ID-attribute I was mentioning, this being time-critical. Estimations using wc -l tell me that there are around 3M N-tags and around 418K W-tags. The latter ones can contain up to approximately 20 subtags each. W-Tags also contain some, but they would be stripped away. "All I have to do" is navigating between tags containing certain id-attributes. Some tags have references to other id's, therefore giving me a tree, maybe even a graph. The original data is big (as mentioned), but the resultset shouldn't be too big as I only have to pick out certain elements. Now the question: What XML parsing library should I use for this kind of processing? I would use Java 6 in a first instance, with having in mind to be porting it to BlackBerry. Might it be useful to just create a flat file indexing the id's and pointing to an offset in the file? Is it even necessary to do the optimizations mentioned in the upper part? Or are there parser known to be quite as fast with the original data? Little note: To test, I took the id being on the very last line on the file and searching for the id using grep. This took around a minute on a Core 2 Duo. What happens if the file grows even bigger, let's say 5 GB? I appreciate any notice or recommendation. Thank you all very much in advance and regards

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