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  • MongoMapper and bson_ext problem

    - by Fossmo
    I can't get MongoMapper to work with my Rails app. I get this error message: **Notice: C extension not loaded. This is required for optimum MongoDB Ruby driver performance. You can install the extension as follows: gem install bson_ext If you continue to receive this message after installing, make sure that the bson_ext gem is in your load path and that the bson_ext and mongo gems are of the same version. I have installed DevKit and installed the gem: gem install bson_ext --no-rdoc --no-ri (result: bson_ext-1.0.1 installed) I'm running on Windows 7. The Rails version is 2.3.7. I used the RubyInstaller when installing. Can anyone point me in the right direction?

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  • DependencyProperty ignores OnPropertyChanged();

    - by Kovpaev Alexey
    I have PointsListView and PointContainer: INotifyPropertyChanged, ICollection<Point>. public class PointContainer: INotifyPropertyChanged, ICollection<Point> { public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged(PropertyChangedEventArgs e) { if (PropertyChanged != null) PropertyChanged(this, e); } public IEnumerable<Point> Points { get { return points.Values; } } public void Clear() { points.Clear(); OnPropertyChanged(new PropertyChangedEventArgs("Points")); } ... } For the reliability I made a binding from code: private void BindPointContainerToListView() { Binding binding = new Binding(); binding.Source = PointContainer; binding.Path = new PropertyPath("Points"); PointsListView.SetBinding(ListView.ItemsSourceProperty, binding); } Why when change PointContainer is not automatically updated PointsListView.ItemsSource. PointsListView.Items.Refresh (); solves the problem, but why does not work automatically? What am I doing wrong?

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  • NAnt build issues with Mono

    - by calmcajun
    I am trying to build a Mono project using NAnt but I get the error listed below. I have tried altering the environment variable PKG_CONFIG_PATH to include the path leading to the file: mono.pc but that does not seem to work. Failed to initialize the 'Mono 3.5 Profile' (mono-3.5) target framework.: NAnt.Core.BuildException: Failed to initialize the 'Mono 3.5 Profile' (mono-3.5) target framework. ---> Unable to locate 'mono' module using pkg-config. Download the Mono development packages from http://www.mono-project.com/downloads/.: NAnt.Core.BuildException: Unable to locate 'mono' module using pkg-config. Download the Mono development packages from http://www.mono-project.com/downloads/. at NAnt.Core.Tasks.FailTask.ExecuteTask () [0x00000] in <filename unknown>:0 at NAnt.Core.Task.Execute () [0x00000] in <filename unknown>:0 --- End of inner exception stack trace --- at NAnt.Core.FrameworkInfo.Init () [0x00000] in <filename unknown>:0 at NAnt.Core.FrameworkInfo.Validate () [0x00000] in <filename unknown>:0 at NAnt.Core.ProjectSettingsLoader.ConfigureRuntimeFramework () [0x00000] in <filename unknown>:0

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  • How do I update ItemTemplate after scrambling ObservableCollection(Of ObservableCollection(Of object

    - by user342195
    I am learning vb.net, wpf and xaml with the help of sites like this one. The project I am currently working on is a 4 x 4 slide puzzle. I cannot get the buttons in the grid to scramble to start a new game when calling a new game event. Any help will be greatly appreciated. If no answer is can be provide, a good resource to research would help as well. Thank you for your time. XAML: <Window x:Class="SlidePuzzle" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Slide Puzzle" Height="391" Width="300" Name="wdw_SlidePuzzle"> <Window.Resources> <DataTemplate x:Key="DataTemp_PuzzleButtons"> <Button Content="{Binding C}" Height="50" Width="50" Margin="2" Visibility="{Binding V}"/> </DataTemplate> <DataTemplate x:Key="DataTemplate_PuzzleBoard"> <ItemsControl ItemsSource="{Binding}" ItemTemplate="{DynamicResource DataTemp_PuzzleButtons}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Canvas/> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemContainerStyle> <Style> <Setter Property="Canvas.Top" Value="{Binding Path=Y}" /> <Setter Property="Canvas.Left" Value="{Binding Path=X}" /> </Style> </ItemsControl.ItemContainerStyle> </ItemsControl> </DataTemplate> </Window.Resources> <DockPanel Name="dpanel_puzzle" LastChildFill="True"> <WrapPanel DockPanel.Dock="Bottom" Margin="5" HorizontalAlignment="Center"> <Button Name="bttnNewGame" Content="New Game" MinWidth="75" Margin="4" Click="NewGame_Click"></Button> <Button Name="bttnSolveGame" Content="Solve" MinWidth="75" Margin="4"></Button> <Button Name="bttnExitGame" Content="Exit" MinWidth="75" Margin="4" Click="ExitGame_Click"></Button> </WrapPanel> <WrapPanel DockPanel.Dock="Bottom" Margin="5" HorizontalAlignment="Center"> <Label>Score:</Label> <TextBox Name="tb_Name" Width="50"></TextBox> </WrapPanel> <StackPanel Name="SlidePuzzlePnl" HorizontalAlignment="Center" VerticalAlignment="Center" Height="206" Width="206" > <ItemsControl x:Name="lst" ItemTemplate="{DynamicResource DataTemplate_PuzzleBoard}"/> </StackPanel> </DockPanel> VB: Imports System.Collections.ObjectModel Class SlidePuzzle Dim puzzleColl As New ObservableCollection(Of ObservableCollection(Of SlidePuzzleBttn)) Dim puzzleArr(3, 3) As Integer Private Sub Window1_Loaded(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles MyBase.Loaded For i As Integer = 0 To 3 puzzleColl.Add(New ObservableCollection(Of SlidePuzzleBttn)) For j As Integer = 0 To 3 puzzleArr(i, j) = (i * 4) + (j + 1) puzzleColl(i).Add(New SlidePuzzleBttn((i * 4) + (j + 1))) puzzleColl(i)(j).X = j * 52 puzzleColl(i)(j).Y = i * 52 Next Next lst.ItemsSource = puzzleColl End Sub Private Sub NewGame_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Dim rnd As New Random Dim ri, rj As Integer Dim temp As Integer For i As Integer = 0 To 3 For j As Integer = 0 To 3 ri = rnd.Next(0, 3) rj = rnd.Next(0, 3) temp = puzzleArr(ri, rj) puzzleArr(ri, rj) = puzzleArr(i, j) puzzleArr(i, j) = temp puzzleColl(i)(j).X = j * 52 puzzleColl(i)(j).Y = i * 52 puzzleColl(i)(j).C = puzzleArr(i, j) Next Next End Sub End Class Public Class SlidePuzzleBttn Inherits DependencyObject Private _c As Integer Private _x As Integer Private _y As Integer Private _v As String Public Shared ReadOnly ContentProperty As DependencyProperty = DependencyProperty.RegisterAttached("_c", GetType(String), GetType(SlidePuzzleBttn), New UIPropertyMetadata("")) Public Sub New() _c = 0 _x = 0 _y = 0 _v = SetV(_c) End Sub Public Sub New(ByVal cVal As Integer) _c = cVal _x = 0 _y = 0 _v = SetV(cVal) End Sub Public Property C() As Integer Get Return _c End Get Set(ByVal value As Integer) _c = value End Set End Property Public Property X() As Integer Get Return _x End Get Set(ByVal value As Integer) _x = value End Set End Property Public Property Y() As Integer Get Return _y End Get Set(ByVal value As Integer) _y = value End Set End Property Public Property V() As String Get Return _v End Get Set(ByVal value As String) _v = value End Set End Property Private Function SetV(ByRef cVal As Integer) As String If cVal = 16 Then Return "Hidden" Else Return "Visible" End If End Function End Class

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  • How to prevent HTTP 304 in Django test server

    - by Augusto Men
    I have a couple of projects in Django and alternate between one and another every now and then. All of them have a /media/ path, which is served by django.views.static.serve, and they all have a /media/css/base.css file. The problem is, whenever I run one project, the requests to base.css return an HTTP 304 (not modified), probably because the timestamp hasn't changed. But when I run the other project, the same 304 is returned, making the browser use the file cached by the previous project (and therefore, using the wrong stylesheet). Just for the record, here are the middleware classes: MIDDLEWARE_CLASSES = ( 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.middleware.transaction.TransactionMiddleware', ) I always use the default address http://localhost:8000. Is there another solution (other than using different ports - 8001, 8002, etc.)?

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  • A function's static and dynamic parent

    - by legends2k
    I'm reading Thinking in C++ (vol. 2): Whenever a function is called, information about that function is pushed onto the runtime stack in an activation record instance (ARI), also called a stack frame. A typical stack frame contains (1) the address of the calling function (so execution can return to it), (2) a pointer to the ARI of the function’s static parent (the scope that lexically contains the called function, so variables global to the function can be accessed), and (3) a pointer to the function that called it (its dynamic parent). The path that logically results from repetitively following the dynamic parent links is the dynamic chain, or call chain I'm unable to comprehend what the author means as function's static and dynamic parent. Also am not able to differentiate between item 1, 2 or 3. They all seem to be the same. Can someone please explain this passage to me?

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  • compare two windows paths, one containing tilde, in python

    - by Steve Cooper
    I'm trying to use the TMP environment variable in a program. When I ask for tmp = os.path.expandvars("$TMP") I get C:\Users\STEVE~1.COO\AppData\Local\Temp Which contains the old-school, tilde form. A function I have no control over returns paths like C:\Users\steve.cooper\AppData\Local\Temp\file.txt My problem is this; I'd like to check if the file is in my temp drive, but I can't find a way to compare them. How do you tell if these two Windows directories; C:\Users\STEVE~1.COO\AppData\Local\Temp C:\Users\steve.cooper\AppData\Local\Temp are the same?

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  • "java.lang.ClassNotFoundException: javax.ejb.EJBObject" when running JAR

    - by Bernhard V
    Hi, I'm getting a "java.lang.ClassNotFoundException: javax.ejb.EJBObject" error when I'm running my application as a JAR file. When running it in Eclipse everything is working fine. The application properly access the main class and the main method. But when it tries to load the application context it cannot resolve a reference to an EJB bean. I then get the following error: Error creating bean with name 'bc' defined in class path resource [blabla.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: javax/ejb/EJBObject at org.springframework.beans.factory.support.BeanDefinitionValueResolver .resolveReference(BeanDefinitionValueResolver.java:275) ... Caused by: java.lang.ClassNotFoundException: javax.ejb.EJBObject I've included all runtime-scoped dependencies with Maven in the JAR file. Do you know any further information regarding this error?

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  • SDK Setup Problems

    - by ramesh
    Hi, Im new to android and am just trying to install the SDK. I have everything else done. When i run the SDK Setup.exe (ive added the ./tools to the path already.) It gives me the famous cannot fetch URL error. Failed to fetch URL https://dl-ssl.google.com/android/repository/repository.xml, reason: Permission denied: connect I tried the force http option and also manually adding a http:// version of the above url. It does not work at all. I am working on a windows 7 64 bit pc. Any help would be appreciated. Ramesh

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  • Enumerate shared folders on Windows with low privileges

    - by Phil Nash
    Using C++ (VS2008) I need to be able to enumerate all shared folders on the current machine and get or construct the local and remote names. We've been using NetShareEnum for this fairly successfully, but have hit a problem where we need to run with a user account with low privileges. To get the local path using NetShareEnum we need to retrieve at least SHARE_INFO_2 structures - but that requires "Administrator, Power User, Print Operator, or Server Operator group membership". I've been trying to use WNetOpenEnum and WNetEnumResource instead but I don't seem to be getting the local name back for that for shares either - and I can't seem to get it to enumerate just local resources - it goes off and finds all shared resources on the local network - which is not an acceptable overhead. So I'd either like help on where I'm going wrong with WNetEnumResource, or a suggestion as to another way of doing this. Any suggestions are much appreciated.

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  • How to solve this error when using kXML for Midlet (java)

    - by hsmit
    I downloaded kXML and included this in my Build Path (Eclipse). Now I'm running a simple Midlet and I get an error: java.lang.NoClassDefFoundError: org/kxml2/io/KXmlParser at clientlibrary.googlecalendar.TestParser.startApp(+8) at javax.microedition.midlet.MIDletProxy.startApp(+7) at com.sun.midp.midlet.Scheduler.schedule(+270) at com.sun.midp.main.Main.runLocalClass(+28) at com.sun.midp.main.Main.main(+80) What did I do wrong? Is there something wrong with the most recent kXML Jar? Does anyone have experience with using kXML? What did you do to get this to work?

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  • iPhone - stdint.h file not found!

    - by Mike
    I am dealing with a project designed for iPhone OS 2.0 and I am intending to keep compatibility with this version while offering new OS 3.x functionality. When I set the base SDK to iPhone OS 3.1.3 and Target OS for 2.0, Xcode gives me this error during compilation. 'stdint.h' file not found /Developer/usr/lib/clang/1.0.1/include/stdint.h:32:16: fatal error: 'stdint.h' file not found The strange thing is that the file is there, on the path it says it is not. if I set the target OS for 3.x the problem vanishes. how to solver that? thanks for any help.

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  • problem in decoupling urls.py , while following a tutorial of django

    - by Nitin Garg
    http://docs.djangoproject.com/en/dev/intro/tutorial03/ I was at the step Decoupling the URLconfs where the tutorial illustrates how to decouple urls.py. On doing exactly what it says, i get the following error- error at /polls/1/ nothing to repeat Request Method: GET Request URL: http://localhost:8000/polls/1/ Exception Type: error Exception Value: nothing to repeat Exception Location: C:\jython2.5.1\Lib\re.py in _compile, line 241 Python Executable: C:\jython2.5.1\jython.bat Python Version: 2.5.1 Python Path: ['E:\\Programming\\Project\\django_app\\mysite', 'C:\\jython2.5.1\\Lib\\site-packages\\setuptools-0.6c11-py2.5.egg', 'C:\\jython2.5.1\\Lib', '__classpath__', '__pyclasspath__/', 'C:\\jython2.5.1\\Lib\\site-packages'] Server time: Mon, 12 Apr 2010 12:02:56 +0530

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  • Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

    - by jamone
    I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

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  • Core Plot on iPad Runs with Debugger, not Standalone

    - by phantomdata
    Hey guys, Thanks to Ole Begemann, I spent yesterday digging around in Core Plot to explore adding graphing to an iPad application that I've been working on. I was fairly satisfied with it, and wanted to show it off to a friend of mine - so I stopped the debugger, took the device off the dock, handed it over to my friend and pushed the icon. Lo, it started and then immediately crashed. I figured that it was using the release profile, and on a whim went ahead and compiled and ran (through the debugger) under the release profile instead of the debug. As expected, it crashed right away with EXC_BAD_ACCESS. I have added the relative path to the core plot to Release configuration and -all_load and -ObjC to the "other" linker flags - just like in the debugger profile and googled all around. IT seems that most people with this issue have forgotten to add the linker flags. Does anyone have any suggestions for next steps in figuring out this issue?

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  • Malformed packet error during MySQL LOAD DATA LOCAL INFILE

    - by dnagirl
    I am trying to load a file into an MySQL(v5.1.38) innodb table using PHP's mysqli::query and a LOAD DATA LOCAL INFILE query. The query returns a 'Malformed packet' error code 2027. Any ideas what is wrong? Here is the target table: CREATE TABLE `zbroom`.`lee_datareceive` ( `a` varchar(45) NOT NULL, `b` varchar(45) NOT NULL, `c` varchar(45) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Here is the query: LOAD DATA LOCAL INFILE '/path/to/file.txt' INTO TABLE lee_datareceive FIELDS TERMINATED BY '\t'; Here is the file data. Values are tab separated: t1 t2 t3 a b c d e f g h i

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  • C# ASPNET MVC - How do you use ModelState.IsValid in a jquery/ajax postback?

    - by JK
    From what I've seen ModelState.IsValid is only calculated by the MVC frame work on a full postback, is that true? I have a jquery postback like so: var url = "/path/to/controller/myaction"; var id = $("#Id").val(); var somedata = $("#somedata").val(); // repeated for every textbox $.post(url, { id: id, somedata: somedata }, function (data) { // etc }); And the controller action looks like: public JsonResult MyAction(MyModel modelInstance) { if (ModelState.IsValid) { // ... ModelState.IsValid is always true, even when there is invalid data } } But this does not seem to trigger ModelState.IsValid. For example if somedata is 5 characters long, but the DataAnnotation says [StringLength(3)] - in this case ModelStae.IsValid is still true, because it hasn't been triggered. Is there something special I need to do when making a jquery/ajax post instead of a full post? Thanks!

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  • Android: howto parse URL String with spaces to URI object?

    - by Mannaz
    I have a string representing an URL containing spaces and want to convert it to an URI object. If is simple try to do String myString = "http://myhost.com/media/mp3s/9/Agenda of swine - 13. Persecution Ascension_ leave nothing standing.mp3"; URI myUri = new URI(myString); it gives me java.net.URISyntaxException: Illegal character in path at index X where index X is the position of the first space in the URL string. How can i parse myStringinto a URI object?

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  • Ruby IRB - Requires and Scope

    - by tyndall
    Trying to understand this problem I'm running into. I create file welcome.rb. The contents of this file: welcome_message = "hi there" I then launch an irb session. And type require 'welcome'. That works fine. Then I type: puts welcome_message I get the error message undefined local variable or method `welcome_message' for main:Object What is the best way to bring in predefined variables and have initialization work done when you require something into your irb session. Global variables didn't seem like the right path.

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  • How to export more than 1MB in XML format using sqlcmd and without an input file?

    - by jon
    Hello, In SQL Server 2008, I want to export the result of a stored procedure to a file using sqlcmd utility. Now the end of my stored procedure is a select statement with a "for xml path.." clause at the end. I read on BOL that if I don't want my output truncated when reaching 1MB file size, I have to use this :XML ON command, but it should be placed on its own line, before calling the stored procedure. Does any of you experts know if it is possible to do that without specifying an input file for sqlcmd? (I'm calling sqlcmd like this: exec master..xp_cmdshell 'sqlcmd -Q"exec storedProcedureName @param1=value1, @param2=value2" -o c:\exportResults.xml -h-1 -E', but "storedProcedureName" and its parameters can change, which would mean 1 input file per passed parameters to sqlcmd) Also, it seems that I can't use bcp instead of sqlcmd because my stored procedure is creating a temporary table and performing DML statements on it? Thanks a lot

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  • Common and useful Graph functions?

    - by Nazgulled
    Hi, I'm implementing a simple Graph library for my uni project and since this is the first time I'm dealing with graphs, I would like to know which functions you guys consider to be most common and useful for Graph implementations... So far, I have this: graphInitialize() graphInsertVertex() graphRemoveVertex() graphGetVertex() graphGetVertexValue() (not implemented yet, not sure if I'll need it) graphInsertEdge() graphRemoveEdge() graphLinkVertices() (this calls graphInsertEdge twice for bidirectional graph) graphUnlinkVertices() (this calls graphRemoveEdge twice for bidirectional graph) graphDestroy() I know I'm missing a function do determine the shortest path, but I'm leaving that for last... Do you think I'm missing any common/useful function?

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  • Getting the username in Twitter using OAuth 0.1.1 Grails plugin

    - by firnnauriel
    anyone had tried using http://www.grails.org/plugin/oauth? i'm trying it in twitter.com and i'm having an issue on getting the username or accessing this API: http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-account%C2%A0verify_credentials here's the code in my callback URL: def twitterCallback = { def response = oauthService.accessResource('http://api.twitter.com/1/account/verify_credentials.json','twitter', session.oauthToken) log.debug "response: ${response}" } i keep getting this error: 2010-04-22 14:32:56,842 [http-8081-1] WARN httpclient.HttpMethodBase - Cookie rejected: "$Version=0; _twitter_sess=BAh7CDoPY3JlYXRlZF9hdGwrCMQcOCQoAToHaWQiJThiYWY4MGI1YTY1M2U0%250AYTRhNjAzYTA2NTBmNjkzZTYwIgpmbGFzaElDOidBY3Rpb25Db250cm9sbGVy%250AOjpGbGFzaDo6Rmxhc2hIYXNoewAGOgpAdXNlZHsA--31d191141bf32e0489967492692f1e77fc9e1845; $Path=/; $Domain=.twitter.com". Illegal domain attribute ".twitter.com". Domain of origin: "twitter.com" 2010-04-22 14:32:56,854 [http-8081-1] INFO auth.AuthChallengeProcessor - basic authentication scheme selected 2010-04-22 14:32:56,856 [http-8081-1] INFO httpclient.HttpMethodDirector - No credentials available for BASIC 'Twitter API'@twitter.com:80 2010-04-22 14:32:56,865 [http-8081-1] ERROR errors.GrailsExceptionResolver - null it seems that it uses BASIC authentication instead of OAuth. any ideas? or is there an issue in the OAuth Grails plugin? thanks.

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  • Innodb setting in xampp doesn't seem locate my.cnf file....

    - by bala3569
    I created a new mysql database and i want to use foreign keys with it... I googled and found out this... InnoDB is one of MySQL storage engines, it supports transactions, row-level locking, and foreign-keys. However, by default, InnoDB is not enabled by XAMPP. To enable it, locate the my.cnf configuration file (normally in C:/xampp/mysql/bin directory) and search for the following lines: # Comment the following if you are using InnoDB tables But the path C:/xampp/mysql/bin directory in my system doesn't seem to have such a file... Look at this image http://img691.imageshack.us/img691/524/mysqln.jpg Where is my.cnf file? Any suggestion...

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  • Could not load php_curl

    - by Ruslan
    Hello I have installed php5.2.13, apache2.2.15 on WindowsXp.Add C:\php to PATH ssystem variable. I can't enable curl extension. I configure extension_dir and remove ";" form php_curl in php.ini but nothing! I copied ssleay32.dll and libeay32.dll in system32 directory - nothing Error log say: PHP Warning: PHP Startup: Unable to load dynamic library 'C:\php\ext\php_curl.dll' - Attempt to access invalid address.\r\n in Unknown on line 0 Can someone help me? Thanks and sorry for bad english.

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  • WPF Listbox - Empty List Display Message

    - by David Ward
    Can anyone suggest the best way to display a Textblock (with a text such as "List Empty") so that it's visibility is bound to the Items.Count. I have tried the following code and can't get it to work, so think that I must be doing it wrong. <ListBox x:Name="lstItems" ItemsSource="{Binding ListItems}"> </ListBox> <TextBlock Margin="4" FontStyle="Italic" FontSize="12" Text="List is empty" Visibility="Collapsed"> <TextBlock.Style> <Style TargetType="{x:Type TextBlock}"> <Style.Triggers> <DataTrigger Binding="{Binding ElementName=lstItems, Path=Items.Count}" Value="0"> <Setter Property="Visibility" Value="Visible" /> </DataTrigger> </Style.Triggers> </Style> </TextBlock.Style> </TextBlock>

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