.NET news » C#

This articles describes some easy ways to filter the properties displayed in a Microsoft PropertyGrid.

C# .NET assembly that executes numeric, date, string, boolean, comparison, etc. expressions.

Learn how to use P/Invoke to call unmaged Win32 APIs from managed code. These sample applications show how to mute sounds, change Windows resolution, and display ballon tips from your managed code.

This article describes complex issues about sending emails in .NET 1.1 (such as using a SMTP server that requires authentication).

Using the IFilter interface to extract text from various document types

A short and sweet quiz with lots of juicy discussion possibilities:

public int Sum(IList<ushort> indices)
{
int result = 0;
for (int i = 0; i < indices.Count; i++)
result += indices[i];
return result;
}

Considering only the time it takes to do the Sum (i.e. assuming we had already set up the array/list) which gives better performance and why?

// #1
ushort[] tmp = new ushort[500000]; // this doesn't count
Sum(tmp);// this is what we are timing

OR

// #2
List<ushort> tmp = new List<ushort>(500000); // this doesn't count
for (int i = 0; i < 500000; i++)tmp.Add(0); // this doesn't count
Sum(tmp); // this is what we are timing

What say you gentle readers?

Using .NET 2.0 generics to allow for enum like classes with human readable descriptions.

Extending the RichTextBox to support form persistance and data binding.

This article aims at making regular expressions simple. By the time you are done, you will be able to write simple validators, and you will know enough about regular expressions to dig into it further without slitting your wrists.

Using static and streaming sound buffers in Managed DirectX.