Visual Studio 2008 SDK Goodies #3

Here's another goodie from the Visual Studio 2008 SDK. In
ProjectNode.CopyPaste.cs in the namespace Microsoft.VisualStudio.Package you'll find the following code snippet:

StringBuilder selectionContent = null;

// If there is a selection package the data
if (selectedNodes.Count > 1)
{
foreach (HierarchyNode node in selectedNodes)
{
selectionContent = node.PrepareSelectedNodesForClipBoard();
if (selectionContent != null)
{
sb.Append(selectionContent);
}
}
}
else if (selectedNodes.Count == 1)
{
HierarchyNode selectedNode = selectedNodes[0];
selectionContent = selectedNode.PrepareSelectedNodesForClipBoard();
if (selectionContent != null)
{
sb.Append(selectionContent);
}
}


Why do we need this if - else if construct? Does the foreach for a list with zero or one element not work?

How to identify menus and commands in Visual Studio 2008

From Visual Studio 2005 SP1 on, there's an undocumented registry switch to enable debug messages which show the guid and id of a selected menu or command. To enable this hidden switch, you'll have to add a dword registry entry under [HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\General] which is called EnableVSIPLogging. It should have a value of 0x00000001 (hexadecimal 1).

After restarting Visual Studio 2008, you can now identify menus and commands by pressing STRG+SHIFT and clicking on the menu or command.

For instructions on enabling this for Visual Studio 2005, see this article.

VSCT file format in Visual Studio 2008 SDK

Hilton Giesenow has made a fantastic How to video about the new vsct-file format which Microsoft is using in Visual Studio 2008 SDK. In contrast to other how to videos, just showing how to use the VsPackage wizard, Hilton shows every step manually. So you'll get a fare good understanding on each part.

You can find the video here.