Get domain name
Why are you using WMI? Can’t you use the standard .NET functionality? System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;
.net-2.0
How to read values from custom section in web.config
You could access them as key/value pairs: NameValueCollection section = (NameValueCollection)ConfigurationManager.GetSection(“secureAppSettings”); string userName = section[“userName”]; string userPassword = section[“userPassword”];
yield return statement inside a using() { } block Disposes before executing
When you call GetAllAnimals it doesn’t actually execute any code until you enumerate the returned IEnumerable in a foreach loop. The dataContext is being disposed as soon as the wrapper method returns, before you enumerate the IEnumerable. The simplest solution would be to make the wrapper method an iterator as well, like this: public static … Read more
How does the “Using” statement translate from C# to VB?
Using has virtually the same syntax in VB as C#, assuming you’re using .NET 2.0 or later (which implies the VB.NET v8 compiler or later). Basically, just remove the braces and add a “End Using” Dim bitmap as New BitmapImage() Dim buffer As Byte() = GetHugeByteArrayFromExternalSource() Using stream As New MemoryStream(buffer, false) bitmap.BeginInit() bitmap.CacheOption = … Read more
How to get xpath from an XmlNode instance
Okay, I couldn’t resist having a go at it. It’ll only work for attributes and elements, but hey… what can you expect in 15 minutes 🙂 Likewise there may very well be a cleaner way of doing it. It is superfluous to include the index on every element (particularly the root one!) but it’s easier … Read more
“This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded”
I have a .NET 4.0 dll project that is being called by a .NET 2.0 project. Is there a way to reconcile the difference in framework? Not that way round, no. The .NET 4 CLR can load .NET 2 assemblies (usually – there are a few exceptions for mixed-mode assemblies, IIRC), but not vice versa. … Read more
Obsolete attribute causes property to be ignored by XmlSerialization
EDIT: After reading a MS Connect article, it appears that .Net 2.0 has a ‘feature’ where it makes ObsoleteAttribute equivalent to XmlIgnoreAttribute without any notification in the documentation. So I’m going to revise my answer to say that the only way to have your cake and eat it too in this instance is to follow … Read more
Determine number of pages in a PDF file [closed]
You’ll need a PDF API for C#. iTextSharp is one possible API, though better ones might exist. iTextSharp Example You must install iTextSharp.dll as a reference. Download iTextsharp from SourceForge.net This is a complete working program using a console application. using System; using System.Collections.Generic; using System.Linq; using System.Text; using iTextSharp.text.pdf; using iTextSharp.text.xml; namespace GetPages_PDF { … Read more
LINQ on the .NET 2.0 Runtime
It’s weird that no one has mentioned LINQBridge. This little awesome project is a backport of LINQ (IEnumerable, but without IQueryable) and its dependencies (Func, Action, etc) to .NET 2.0. And: If your project references LINQBridge during compilation, then it will bind to LINQBridge’s query operators; if it references System.Core during compilation, then it will … Read more
How to open a new form from another form
In my opinion the main form should be responsible for opening both child form. Here is some pseudo that explains what I would do: // MainForm private ChildForm childForm; private MoreForm moreForm; ButtonThatOpenTheFirstChildForm_Click() { childForm = CreateTheChildForm(); childForm.MoreClick += More_Click; childForm.Show(); } More_Click() { childForm.Close(); moreForm = new MoreForm(); moreForm.Show(); } You will just need … Read more