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Search found 719 results on 29 pages for 'pieter van niekerk'.

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• Starting self hosted WCF services on demand

  - by Pieter

  Is it possible to start self hosted WCF services on demand? I see two options to accomplish this: Insert a listener in the self hosted WCF's web server and spin up a service host when a request for a specific service comes in, before WCF starts looking for the existence of that endpoint; or Integrate a web service in process, start a service host for a request if it isn't running yet and redirect the request to that service host (like I suspect IIS does). I cannot use IIS or WAS because the web services need to run in process with the UI business logic. Which is feasible and how can I accomplish this? EDIT: I cannot just start the service hosts because there are hundreds, most (about 95%) of which are (almost) never used but need to be available. This is for exposing a business logic layer of 900 entities.

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• Does GdkRectangle have an activate event?

  - by Pieter

  Is there an event that triggers when a GdkRectangle is clicked? What's the syntax of the accompanying g_signal_connect command?

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• Json to treeview (<ul>)

  - by Pieter

  Hi I get the following data back from my WCF Data Service (I cut out the metadata) { "d" : [ {"CodeId": 6, "Title": "A Child Sub Item", "Parent":}, {"CodeId": 5, "Title": "Another Root Item", "Parent": -1}, {"CodeId": 4, "Title": "Child Item", "Parent": 2}, {"CodeId": 2, "Title": "Root Item", "Parent": -1} ] } I am trying to get this into a <ul> style tree with Parent = -1 as root and then the rest as sub items of their parent id's. Can anyone help me please, preferably in jQuery? I will use this in jstree if someone knows of a better way to do this. Thanks

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• Getting started with Qt4: which book to read?

  - by Pieter

  I'm trying to learn Qt4. I have written code in C, C#, Python, PHP, Java and JavaScript before, but not in C++. Is there a book on Qt4 that you can recommend me? I've found some books I might like, but they're a little on the expensive side. I'm not ready to commit to Qt before I've played with it for a while, so I'd prefer to keep it under 30 bucks. I will accept the answer that gets the most up votes.

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• Browsing page siblings through next/previous links

  - by Pieter

  I'm using WordPress as CMS for a site I'm developing. When I'm browsing posts, I can use Next/Previous links to walk between posts. I want to have the same thing on pages. Page A Page B Page C Page A should link to next sibling Page B. Page B should link to previous sibling Page A and next sibling Page C. Page C should link to previous sibling Page B. Is there any plugin you can recommend that generates these links? I know there are some plugins that do this, but I specifically want one that hooks into my current theme automatically. I know how to edit the theme, but that would brick my site whenever a theme update is available. I'm using the LightWord WordPress theme.

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• jQuery UI sortable: determining in what order the items are

  - by Pieter

  Here is an interesting use of JavaScript: reordering items with drag and drop. The implementation itself in my page works fine, but is there a way to determine in which order the user put the items?

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• HAML indentation problem IF

  - by Pieter Demoor

  This is my code: [email protected] do |a| -if @i%3 == 0 %ul %li=link_to a.name, a -@i += 1 I need the li to be inside the ul which is inside the if-statement. I can't do it because of the indentation. Can't I just tell the li to indent automatically? Thanks

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• Preventing form submission when Enter is pressed

  - by Pieter

  I have a form with a disabled submit button. Even though the user can't press this button, he can still hit Enter to submit the form. How do I prevent that?

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• [C#] Dynamic user-interface, WPF or not?

  - by pieter.lowie

  Hi, I'm currently working at a application that helps people understand how to do there job. You can see it as a personal coach that guides them trough all the steps they need to do that no normal person could keep remembering. In my previous application we had the ability to show the user up to 4 pictures (what proves to be more then enough). The application would load the data and see how many pictures where in every instruction and then sort out the picture in the best fitting way without messing up the scale and resolution of the pictures. This all was done with GDI+ and worked very well. Ofc, change is something that always happens, my bosses came up with some great ideas. So they want to be able to see movies on the screen, animated gif's, 3D models that can rotate or animate. So I think we had pushed GDI+ to it's limits and it's time to look for something different. I have heard and readed about WPF but have no experience with it. Is it even possible to do all what I ask in WPF? And what about the old picture-merging thing I wrote, can we also get it done in wpf? I tried to make some things working but I didn't went as smooth as I hoped. I'm also concerned about the fact that the interface needs to be dynamic, the one moment it should be showing picture with some text above it, the other moment it should be showing another text with a video under it. I would love to hear some opinions here and if you got some other suggestions I should look into pls tell me. Thnx in advance PS: If WPF is the choice, should I convince my boss to change to .net 4.0?

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• Making input buttons act like <a>'s without JavaScript

  - by Pieter

  I know that I can assign an onclick action to <input type="button"-style buttons. But is it possible to let it behave like an <a> without using JavaScript? I ask because I'm in a situation where technically I'm better off using <a>'s, but buttons look nicer.

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• How to tell if a mouse is hovering over an element

  - by Pieter

  Is there a function I can call to know if a certain element is currently being hovered over, like this? /* Returns true or false */ hoveringOver("a#mylink");

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• Retain ViewData when editing variable length list

  - by Pieter

  I'm editing variable length lists and use ViewData to pass around information for filling a DropDownList. I use the method described here for editing these lists: http://blog.stevensanderson.com/2010/01/28/editing-a-variable-length-list-aspnet-mvc-2-style/ The data for this dropdownlist comes from the database. As the ViewData is not available across requests, I currently do a new query to the database each and every time. This also happens when the ModelState is not valid and the form is redisplayed. Of course, this is less then ideal even for a light-weight query as this one. How can I retain the information from that query across requests as long as the user is editing the page with that variable length list?

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• Latex font color

  - by Pieter

  I'm trying to typeset a document I'm working on. Currently I'm trying to format a piece of text such that the text consists of two colors: a fill color and a line color. In this way the header should pop out more. I found \psset with options such as linecolor and fillcolor, but I can't get it to work. Can someone provide an example of how I could do this? Just providing a color using the color-package is no problem, but also not what I want because using this package I can only provide a single color for a piece of text.

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• How to change the range of a chart in Excel using VBA?

  - by Pieter

  Hi guys, I'm using an Excel sheet to keep track of a particular time series (my daily weight, if you must know). I created a macro that inserts a row, automatically adds today's date and calculates a moving average based on my input. There is also a chart to visualize my progress. I have tried recording a macro that updates the time series in the graph, but to no success. How can I create a macro or VBA script that, when executed, updates the range of the graph from A(x):Cy to A(x-1):Cy to include today's measurement? Thanks!

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• Horizontal <ul> menu: how to fix the width of list items

  - by Pieter

  I have a horizontal <ul> menu. How can I fix the width of the <li> elements at, say, 250px each?

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• HTML/Javascript: Is it possible to remember the filename from a fileupload field ONLY and then later

  - by Pieter Breed

  I have a HTML file upload field from which I'm reading the file name of the file that the user specifies. The actual contents of the file is never uploaded. At a later stage, is it possible to construct a link using this file name information so that if the user clicks on this link, the original file is launched into a new browser window? If not, what are the reason for disallowing this behaviour? The purpose of such a feature is to store links to documents that are available on a mapped local drive or a network share.

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• Why does this getchar() loop stop after one character has been entered?

  - by Pieter

  #include <stdio.h> int main() { char read = ' '; while ((read = getchar()) != '\n') { putchar(read); } return 0; } My input is f (followed by an enter, of course). I expect getchar() to ask for input again, but instead the program is terminated. How come? How can I fix this?

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• [R] select values from list using Date as index

  - by Pieter

  Suppose I have a list as follows bar=c() bar["1997-10-14"]=1 bar["2001-10-14"]=2 bar["2007-10-14"]=1 How can I select from this list all values for which the index is within a specific date range? So, if I look for all values between "1995-01-01" and "2000-06-01", I should get 1. And similarly for the period "2001-09-01" and "2007-11-04", I should get 2 an 1.

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• Warning: mysql_query(): 3 is not a valid MySQL-Link resource

  - by Pieter

  I got this odd error and I can't figure out where it came from: Warning: mysql_query(): 3 is not a valid MySQL-Link resource in (...) What's up with the 3? I don't get it. Has anyone experienced this error themselves?

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• Powershell Set-BitsTransfer - access is denied

  - by Rouan van Dalen

  Hi I have the following powershell script: Import-Module BitsTransfer Get-BitsTransfer -AllUsers | Set-BitsTransfer -SetOwnerToCurrentUser which is running on Server2008 R2. I get the error message: Set-BitsTransfer : Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) I have googled around but cannot seem to find the reason why this happens or how to fix this. I suspect it is a permission issue. I am logged in as local administrator and use the 'Run as administrator' option when starting powershell. I have also tried setting the execution policy, but it makes no difference. I am not aware of permissions on commands in powershell. Could someone please shed some light on this. Thanks. Rouan

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• Strange permission errors in new PostgreSQL installation

  - by Bart van Heukelom

  A freshly installed PostgreSQL (with configuration overwritten) won't start: $ sudo service postgresql start * Starting PostgreSQL 9.1 database server * Error: could not read /etc/postgresql/9.1/main/postgresql.conf: Permission denied Looks like it should be able to read it though: $ ls -l postgresql.conf -rw------- 1 postgres postgres 19450 2012-06-14 10:07 postgresql.conf But fine, I'll add chmod +r it to test if that works. $ sudo chmod +r postgresql.conf $ sudo service postgresql start * Starting PostgreSQL 9.1 database server * The PostgreSQL server failed to start. Please check the log output: Error: Could not open log file /var/log/postgresql/postgresql-9.1-main.log Huh? $ ls -l /var/log/postgresql/ total 4 -rw-r----- 1 postgres adm 827 2012-06-14 10:07 postgresql-9.1-main.log I don't get it. What can be wrong here? This used to work before. Can I maybe monitor what process attempts to open the file? It's Ubuntu 11.10 on EC2, using Chef. For completeness, here's the recipe: # Install PostgreSQL package "postgresql-9.1" # Stop server service "postgresql" do action :stop end # Overwrite configuration (setting data dir) template "/etc/postgresql/9.1/main/postgresql.conf" do source "postgresql-conf.erb" owner "postgres" group "postgres" end # Start server service "postgresql" do action :start end

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• Cross domain javascript form filling, reverse proxy

  - by Michel van Engelen

  I need a javascript form filler that can bypass the 'same origin policy' most modern browsers implement. I made a script that opens the desired website/form in a new browser. With the handler, returned by the window.open method, I want to retrieve the inputs with theWindowHandler.document.getElementById('inputx') and fill them (access denied). Is it possible to solve this problem by using Isapi Rewrite (official site) in IIS 6 acting like a reverse proxy? If so, how would I configure the reverse proxy? This is how far I got: RewriteEngine on RewriteLogLevel 9 LogLevel debug RewriteRule CarChecker https://the.actualcarchecker.com/CheckCar.aspx$1 [NC,P] The rewrite works, http://ourcompany.com/ourapplication/CarChecker, as evident in the logging. From within our companysite I can run the carchecker as if it was in our own domain. Except, the 'same origin policy' is still in force. Regards, Michel

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• Apache: https to https redirect

  - by Klaas van Schelven

  I'm trying to get Apache to redirect all http and https traffic to a single endpoint www.example.org. The http part is easy: <VirtualHost *:80> ServerName example.org Redirect permanent / https://www.example.org/ </VirtualHost> # long list of other domains, all redirecting to https://www.example.org/ <VirtualHost *:80> ServerName www.example.org Redirect permanent / https://www.example.org/ </VirtualHost> I'm trying to do something similar for the https. It is my understanding that I need to specify one specific IP address, because the Host directive is also sent encrypted. So the below works: <VirtualHost xx.xx.xx.xx:443> ServerName www.example.org # actual stuff happening here </VirtualHost> However, when I start adding the redirects to the config, like so: <VirtualHost xx.x.xx.xx:443> ServerName example.org Redirect permanent / https://www.example.org/ </VirtualHost> # long list of other domains stuff breaks. $ apache2ctl configtest [warn] VirtualHost xx.xx.xx.xx:443 overlaps with VirtualHost xx.xx.xx.xx:443, the first has precedence, perhaps you need a NameVirtualHost directive If I add a directive like so: NameVirtualHost xx.xx.xx.xx:443 Connecting to the (ssl part of the) server starts to fail. How do I solve this?

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• Setting up SSL virtual hosts in Apache

  - by Bart van Heukelom

  I'm trying to set up SSL, with SNI, in my apache and am getting the often-seen "ssl_error_rx_record_too_long" error in Firefox when accessing the site (https://test.me.dev.xxxx.net), from which I can conclude that the server is listening on port 443, but doesn't know to use SSL on it. The server is Ubuntu 9.04 with Apache 2.2.11 I enabled SSL in the default way (a2enmod ssl). Here is my relevant config: NameVirtualHost *:* Listen 80 <IfModule mod_ssl.c> Listen 443 </IfModule> ... <VirtualHost *:*> DocumentRoot /home ServerAlias *.dev.xxxx.net UseCanonicalName Off # project.user.dev.xxxx.net VirtualDocumentRoot /home/%2/dev/%1/web SSLEngine On SSLCertificateFile /etc/apache2/certs/dev.crt SSLCertificateKeyFile /etc/apache2/certs/dev.key </VirtualHost> What is wrong?

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• Can I change the "From" name and address without going into Mail.app's preferences?

  - by Arjan van Bentem

  Can I somehow add an editable "From" field to Mail.app, a bit like Virtual Identity for Thunderbird, just like I could change the "Reply To" address on the fly? In Mail.app, one can set up multiple email addresses for a single account by just entering a comma-seperated list like [email protected], [email protected]. Next, when composing a message, Mail offers a dropdown to select a "From" address. And when replying†, it automatically selects the right address if it can find a match: Nice, but I'd like to be able to change the "From" on the fly, without going into the Account Information. Also, in previous versions of Mail one could even specify multiple Full Names for a single account: Email Address: Arjan <[email protected]>, Arjan on SU <[email protected]> But nowadays, Mail only uses the setting of Full Name, and even ignores names in the Email Address field when no value for Full Name is set at all. Hence, it would be great if I could change the Full Name on the fly as well. I had no luck finding a plugin for Mail yet. † When using sub-addressing, anything that is sent to [email protected] is simply delivered to [email protected]. I'd then like to reply with the same full address, rather than just [email protected] if Mail cannot find a match, without going into the Account Information first. I sometimes also want to compose a new message with a new sub-addressing-address.

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