System.__ComObject

Question

 

hi

when i run this code :

public static void Main()

{

DirectoryEntry de = new DirectoryEntry( "LDAP://192.168.1.100/cn=a b, cn=Users, dc=soheila, dc=org"); PropertyCollection pc = de.Properties;

foreach(string propName in pc.PropertyNames)

{

foreach(object value in de.Properties[propName])

Console.WriteLine(" property = {0} value = {1}", propName, value);

}

}

some of the property value pair that it shows are:

property = uSNCreated value = System.__ComObject

property = uSNChanged value = System.__ComObject

property = badPasswordTime value = System.__ComObject

property = lastLogoff value = System.__ComObject

property = lastLogon value = System.__ComObject

property = pwdLastSet value = System.__ComObject

property = accountExpires

value = System.__ComObject

property = nTSecurityDescriptor value = System.__ComObject

i want to know what does it means and how can i use the "lastLogoff","lastLogon",,,,,properties?

regards........

thanks.

Answer 1

Seem like this post kind of long without any reply. After few hours of google, I found a solution on that. I write myself a function in VB.NET to convert the System.__ComObject to valid Date Time. It basically for the few properties like badPasswordTime, uSNCreated and etc. You can refer below for the function:

   Private Shared Function ConvertADObjectToDate(ByVal Input As Object) As Date
        Try
            Dim Output As Date = "1601-01-01 08:00:00"
            Dim low As Object = Input.GetType.InvokeMember("LowPart", Reflection.BindingFlags.GetProperty, Nothing, Input, Nothing)
            Dim high As Object = Input.GetType.InvokeMember("HighPart", Reflection.BindingFlags.GetProperty, Nothing, Input, Nothing)
            Dim J As Long = (Convert.ToInt64(high) << 32) + Convert.ToInt64(low)
            Output = IIf(Convert.ToInt64(high) << 32 = -1 And Convert.ToInt64(low) = -1, Output, DateTime.FromFileTime(J))
            Return Output
        Catch ex As Exception
            Throw ex
        End Try
    End Function