The other day, I was looking and a colleague’s beautiful wallpaper and thought it would be nice to set a daily wallpaper but without the fuss of finding one every day. I found some sample scripts to get the Bing daily image and other scripts to set the wallpaper to an image. Here’s my version written in C# with LinqPad.
Tag Archives: LinqPad
LinqPad – Get Disk Information
Getting hardware information can sometimes be hard when writing in .NET, the Framework keeps many of the deails away from the developer. One day I needed to know if a drive letter existed and what type of drive it was. I found many ways to do this but the one I liked the best is extremely simple from a code perspective:
Assemblies:
System.Management
System.Management.Instrumentation
var drive = "C";
var disk = new ManagementObject("Win32_LogicalDisk.DeviceID=\"" + drive + ":\"");
disk.Get();
disk.Dump();
LinqPad – Enum to String
Converting an enum item to s string in C# is pretty simple, but we had a situation where the enum was not what we wanted to display to the user on the web. Looking around I found several examples of how to get the displayed version to be more user-friendly. Here is an example:
public enum SysModeType
{
Student,
Admin,
Preceptor,
Undefined
}
We wanted to show “Administrator” on the web site but internally we were using “Admin”. We could do a search and replace for all Admin entries but there were other implications to the enum question in my mind. What if I wanted to display “Student Teacher” or “Intern/Unpaid” or any other combination of things that are not compatible with C# syntax. I came up with several solutions and then went once step forward to test the performance of each. The link is what worked and what didn’t. I leave it to you to decide which one works for you.
LinqPad File: Utility – Enum to string.linq
LinqPad – Active Directory User Groups
The other day I needed to know the Active Directory groups a user had assigned. Not being an operations person, I couldn’t go and use the tools on the server. I decided there must be an easy way to get this done. After a bit of searching, I came up with this LinqPad script using some assemblies Microsoft provided.
Assemblies:
System.DirectoryServices
System.DirectoryServices.ActiveDirectory
System.DirectoryServices.AccountManagement
System.DirectoryServices.Protocols
string username = 'hlord';
string domain = 'MyDomain';
var domainGroups = new List<string>();
var domainContext = new PrincipalContext(ContextType.Domain, domain);
var user = UserPrincipal.FindByIdentity(domainContext, username);
var authGroups = user.GetAuthorizationGroups();
authGroups.All(g => {
if (!string.IsNullOrEmpty(g.Name) && !domainGroups.Contains(g.Name))
domainGroups.Add(g.Name);
return true;
});
domainGroups.Sort();
domainGroups.Dump();
LinqPad File: LDAP – User Groups.linq
Harry Lord's Blog 