Visual Studio Hacks

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Chapter 12, Extending Visual Studio

#89 Writing a Visual Studio Add-in

HACK

Visual Studio also adds a great deal of the boilerplate code to the Connect.cs

file for you. If you open it, you will see all of the required methods already

created with default code. You could actually run this add-in already, and it

would handle the command—it just wouldn’t do anything.

Add Menu Item

Since you checked the Tools menu option in the project wizard, Visual Stu-

dio will have already added the command for your add-in to the Tools

menu, but you usually want to also have a menu item somewhere else. In

this example, I want to have a menu item also on the right-click menu. To

do this, you will need to modify the default code that the wizard generated.

When your add-in is loaded, Visual Studio calls the

OnConnection method—

this is where you will need to add commands. Here is the default code cre-

ated by the wizard:

public void OnConnection(object application,

Extensibility.ext_ConnectMode connectMode,

object addInInst, ref System.Array custom)

{

applicationObject = (_DTE)application;

Figure 12-12. New projects in Solution Explorer

Writing a Visual Studio Add-in #89

Chapter 12, Extending Visual Studio

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addInInstance = (AddIn)addInInst;

if(connectMode = = Extensibility.ext_ConnectMode.ext_cm_UISetup)

{