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POHow to set property value through an attribute tag name using reflection?
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copied!<p>I wish to write a reusable library for querying against AD with LDAP. I'm using both ActiveDs COM objects and System.DirectoryServices.</p> <p>Greatly inspired by Bart de Smet LINQ to AD, I have written a SchemaAttribute and an DirectoryAttributeAttribute classes to use with a DirectorySource(Of T) class (Yes, it's VBNET, but any C# code will help as I'm fluent in both languages).</p> <p>Now, when querying against AD using LDAP (System.DirectoryServices), you may choose what property/attribute you wish to get loaded by the DirectorySearcher class. Then, I've written myself a method that takes a ParramArray of String as its parameter, so that I add the LDAP properties to the DirectorySearcher.PropertiesToLoad() method within a foreach() statement. Here's a piece of code to make it clear (Assuming that ldapProps parameter will always contain value(s)):</p> <pre><code>Public Function GetUsers(ByVal ParamArray ldapProps() As String) As IList(Of IUser) Dim users As IList(Of IUser) = New List(Of IUser) Dim user As IUser Dim de As DirectoryEntry = New DirectoryEntry(Environment.UserDomainName) Dim ds As DirectorySearcher = New DirectorySearcher(de, "(objectClass=user)") For Each p As String In ldapProps ds.PropertiesToLoad(p) Next Try Dim src As SearchResultCollection = ds.FindAll() For Each sr As SearchResult In src user = New User() // This is where I'm stuck... Depending on the ldapProps required, I will fill only these in my User object. Next End Function </code></pre> <p>Here's a piece of my User class:</p> <pre><code>Friend NotInheritable Class User Implements IUser Private _accountName As String Private _firstName As String <DirectoryAttributeAttribute("SAMAccountName")> _ Public Property AccountName As String Get Return _accountName End Get Set (ByVal value As String) If (String.Equals(_accountName, value)) Then Return _accountName = value End Set End Property <DirectoryAttributeAttribute("givenName")> _ Public Property FirstName As String Get Return _firstName End Get Set (ByVal value As String) If (String.Equals(_firstName, value)) Then Return _firstName = value End Set End Property End Class </code></pre> <p>Now, I would like to benefit of those attributes that I put on top of my User class properties. I know how to get these attributes, and I know how to get my properties. What I am unsure is how to make sure that the right property will be set the right value from the SearchResult class to my User class.</p> <p><strong>EDIT</strong> As time plays against me, I can't wait to get acquainted with the concept of DirectorySource(Of T), as it requires a bit more coding for me to write to get it working. As a workaround, I'm writing a UserFactory class which will be called through my ActiveDirectoryFacade.</p> <p><strong>EDIT</strong> This SO question seems to be very close to what I wish to accomplish:<br> <a href="https://stackoverflow.com/questions/1359484/reflection-attributes-and-property-selection">Reflection, Attributes and Property Selection</a></p> <p><strong>EDIT</strong> This looks like what I want: <a href="https://stackoverflow.com/questions/390594/c-setting-property-values-through-reflection-with-attributes">C# setting property values through reflection with attributes</a><br> Anyone has another idea or can confirm this is right?</p> <p>I shall also mention that I'm stuck in .NET Framework 2.0 and VBNET2005. Otherwise, I would have used Bart de Smet's LINQ to AD library.</p> <p>Thanks for any help.</p>

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