Active Directory Topology Diagrammer

I sometimes get very positively surprised by Microsoft. In the work of cleaning and structuring an Active Directory environment we wanted to produce a graphical overview of our current forest. It did not take long before I found Active Directory Topology Diagrammer, which is an absolute perfect tool for this purpose. And it is free!

Active Directory Topology Diagrammer gets the entire AD structure according to the parameters you supply and draws the structure in a Visio document. It does however require Visio 2003 or later installed to be able to do this export.

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Binding a HTML-formatted string to a WPF WebBrowser control

Sometimes there is a need to display a HTML formatted string in a WPF application. There are a couple of ways to do this, but the most stright forward is to use a WebBrowser control and the NavigateToString method. This approach has one big flaw, you cannot use binding to a string out of the box, but I found a great solution through Stack Overflow which adds a bindable property to the WebBrowser control using NavigateToString . The following class is all that is needed to add that behavior. A new depencency property named Html is introduced to the WebBrowser and the proper change action is performed in the OnHtmlChanged method. public class BrowserBehavior { public static readonly DependencyProperty HtmlProperty = DependencyProperty.RegisterAttached( "Html", typeof(string), typeof(BrowserBehavior), new FrameworkPropertyMetadata(OnHtmlChanged)); [AttachedPropertyBrowsableForType(typeof(WebBrowser))] public static string GetHtml(WebBrowser bro

User.Identity returns old login name after name change

When a person gets married or makes a name change for some other reason this usually means that the login name for the Active Directory-account changes as well. This is rarely a problem, but it turned out to cause some issues on our web server, where the User.Identity property was still returning the old login name. The user logged on with the new login name, but was identified by the web application as the old login name. The reason this occurs is because the User.Identity property relies on the LsaLookupSids method to convert the user SID to a login name. The method first calls the local LSA-cache , which is not synchronized with the Active Directory. For this purpose a simple reboot of the web server to clear the LSA-cache propably would have sufficed. But since we didn't want to take the application offline rebooting was not an option. Instead, it is possible to set the registry value LsaLookupCacheMaxSize in HKLM\SYSTEM\CurrentControlSet\Control\Lsa. If this val

Using Bootstrap Tooltip to show Parsley validation errors

I'm currently working on a web application using a variety of different frameworks, such as Backbone for the back-end, Bootstrap for the front-end and Parsley for client side form validation. Parsley is a really powerful validation toolkit, but it takes some tweaking to make it blend with the Bootstrap front-end. Fortunately this is a one time fix, which can be re-used all over our project. Since there will be some custom options in our Parsley object, we can't use the default parsley-validate attribute on the form. Instead we have to initialize the validation with the jQuery syntax: $('#my-form').parsley(parsleyOptions); The options are were the magic happens, and in our case we have a global options object that our forms use to get the same experience all over the application. Here's what it looks like: var parsleyOptions = { // Sets success and error class to Bootstrap class names successClass: 'has-success', errorClass: 'has-er

Victor Stodell

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