Thanks Jeffrey

works fine!

have a good time!

jahrens

namespace NamingConventionExtention

{

using System;

using System.Data;

using System.Windows.Forms;

using Microsoft.Office.Core;

using Extensibility;

using System.Runtime.InteropServices;

using EnvDTE;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;

#region Read me for Add-in installation and setup information.

// When run, the Add-in wizard prepared the registry for the Add-in.

// At a later time, if the Add-in becomes unavailable for reasons such as:

// 1) You moved this project to a computer other than which is was
originally created on.

// 2) You chose 'Yes' when presented with a message asking if you wish to
remove the Add-in.

// 3) Registry corruption.

// you will need to re-register the Add-in by building the MyAddin21Setup
project

// by right clicking the project in the Solution Explorer, then choosing
install.

#endregion

/// <summary>

/// The object for implementing an Add-in.

/// </summary>

/// <seealso class='IDTExtensibility2' />

[GuidAttribute("62A2C7D0-DB40-495C-A5CC-CE9A5022A4C0"),
ProgId("NamingConventionExtention.Connect")]

public class Connect : Object, Extensibility.IDTExtensibility2

{

private _DTE applicationObject;

private AddIn addInInstance;

private EnvDTE.WindowEvents windowEvents;

private Window activeWindow;

private IDesignerHost designerHost;

private Hashtable componentChangeServices = new Hashtable();

private DataSet ds;

/// <summary>

/// Implements the constructor for the Add-in object.

/// Place your initialization code within this method.

/// </summary>

public Connect()

{

}

/// <summary>

/// Implements the OnConnection method of the IDTExtensibility2 interface.

/// Receives notification that the Add-in is being loaded.

/// </summary>

/// <param term='application'>

/// Root object of the host application.

/// </param>

/// <param term='connectMode'>

/// Describes how the Add-in is being loaded.

/// </param>

/// <param term='addInInst'>

/// Object representing this Add-in.

/// </param>

/// <seealso class='IDTExtensibility2' />

public void OnConnection(object application, Extensibility.ext_ConnectMode
connectMode, object addInInst, ref System.Array custom)

{

applicationObject = (_DTE)application;

addInInstance = (AddIn)addInInst;

try

{

windowEvents = applicationObject.Events.get_WindowEvents(null);

windowEvents.WindowActivated += new
_dispWindowEvents_WindowActivatedEventHandler(windowEvents_WindowActivated);

windowEvents.WindowClosing += new
_dispWindowEvents_WindowClosingEventHandler(windowEvents_WindowClosing);

windowEvents.WindowCreated +=new
_dispWindowEvents_WindowCreatedEventHandler(windowEvents_WindowCreated);

ds = new DataSet();

System.Xml.XmlDocument doc = new System.Xml.XmlDocument();

doc.Load(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().CodeBase)
+ "\\NamingConventions.config");

ds.ReadXml(doc.SelectSingleNode("/configuration//appSettings//add[@key=\"NamingConventionsPath\"]//@value").Value);

ds.Tables["NamingConventions"].PrimaryKey = new
DataColumn[]{ds.Tables["NamingConventions"].Columns["Namespace"]};

}

catch(Exception e)

{

MessageBox.Show(e.ToString());

}

}

/// <summary>

/// Implements the OnDisconnection method of the IDTExtensibility2
interface.

/// Receives notification that the Add-in is being unloaded.

/// </summary>

/// <param term='disconnectMode'>

/// Describes how the Add-in is being unloaded.

/// </param>

/// <param term='custom'>

/// Array of parameters that are host application specific.

/// </param>

/// <seealso class='IDTExtensibility2' />

public void OnDisconnection(Extensibility.ext_DisconnectMode disconnectMode,
ref System.Array custom)

{

}

/// <summary>

/// Implements the OnAddInsUpdate method of the IDTExtensibility2 interface.

/// Receives notification that the collection of Add-ins has changed.

/// </summary>

/// <param term='custom'>

/// Array of parameters that are host application specific.

/// </param>

/// <seealso class='IDTExtensibility2' />

public void OnAddInsUpdate(ref System.Array custom)

{

}

/// <summary>

/// Implements the OnStartupComplete method of the IDTExtensibility2
interface.

/// Receives notification that the host application has completed loading.

/// </summary>

/// <param term='custom'>

/// Array of parameters that are host application specific.

/// </param>

/// <seealso class='IDTExtensibility2' />

public void OnStartupComplete(ref System.Array custom)

{

}

/// <summary>

/// Implements the OnBeginShutdown method of the IDTExtensibility2
interface.

/// Receives notification that the host application is being unloaded.

/// </summary>

/// <param term='custom'>

/// Array of parameters that are host application specific.

/// </param>

/// <seealso class='IDTExtensibility2' />

public void OnBeginShutdown(ref System.Array custom)

{

}

private void windowEvents_WindowActivated(Window GotFocus, Window LostFocus)

{

HandleActiveWindowChange(GotFocus);

}

private void windowEvents_WindowClosing(Window Window)

{

HandleActiveWindowChange(null);

}

private void windowEvents_WindowCreated(Window Window)

{

HandleActiveWindowChange(Window);

}

private void HandleActiveWindowChange(Window newActiveWindow)

{

activeWindow = newActiveWindow;

designerHost = null;

if(activeWindow != null &&
!componentChangeServices.ContainsKey(activeWindow))

{

designerHost = activeWindow.Object as IDesignerHost;

if(designerHost == null) return;

IComponentChangeService componentChangeService =
designerHost.GetService(typeof(IComponentChangeService)) as
IComponentChangeService;

if(componentChangeService == null) return;

componentChangeService.ComponentAdded += new
ComponentEventHandler(componentChangeService_ComponentAdded);

componentChangeServices.Add(activeWindow, null);

}

}

private void componentChangeService_ComponentAdded(object sender,
ComponentEventArgs e)

{

try

{

int i = 1;

string type = e.Component.GetType().ToString();

DataRow row = ds.Tables["NamingConventions"].Rows.Find(type);

if(row == null) return;

string prefix = row["Prefix"].ToString();

if(e.Component.Site.Container.Components[prefix] == null)

{

e.Component.Site.Name = prefix;

return;

}

string name = prefix + i;

while(e.Component.Site.Container.Components[name] != null)

{

i++;

name = prefix + i;

}

e.Component.Site.Name = name;

}

catch(Exception ex)

{

MessageBox.Show(ex.ToString());

}

}

}

}