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Easily create an Add-in for Expression Web 4 with the Add-in Builder

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With today's launch of Expression Web 4, we’ve made extending Expression Web’s functionality easier than ever.  Developers can create Add-ins for Expression Web by using HTML, JavaScript and CSS standards they already know!  We have also simplified integrating your Add-ins into Expression Web’s Panel and menu system using XML.  In order to make it even easier, we are providing an Add-in on the Expression Community site that makes it super simple to build other Add-ins. It’s a classic Chicken or the Egg problem solved with the “Add-in Builder”. Click here to download the Add-in Builder. Once you have downloaded it, you can install it within Expression Web 4 directly via the Tools -> Add-ins menu! Click the Install button and choose the .xadd file you just downloaded.

Before we get started building an Add-in with the Add-in Builder let's take a look at the exact XML used in order to integrate the Add-in Builder itself into Expression Web 4.  It’s pretty simple and very straightforward.

<addin legacy="yes" developer="yes">

<name>Add-in Builder</name>

<load type="AddinUtilities.Utilities, AddinUtilities" name="addinUtils"/>

<description>Chicken or the Egg?</description>

<command id="AddinBuilderCommand"

           onclick="xweb.application.showModalDialog('AddinBuilderTestPage.html',

           'Add-in Builder','dialogHeight:500;dialogWidth:700;resize:yes')">

         <menuitem parent="MENU_Tools" before="MENU_Tools_AddIns" label="Add-in Builder..."/>

</command>

</addin>

As simple as it is, learning and authoring new XML syntax can be time consuming and is largely based on trial-and-error. The Add-in builder provides a user-friendly interface that makes it simple to generate the XML and all the associated content files. In addition, the add-in you define is created in the correct location and a site is created for you inside of Expression Web 4 for you.  Why is that cool? Simple, once your add-in is generated you can live edit it just like any other site!

We’ve cleared all of the hurdles for you and now as a Web Developer you can focus on building the HTML, CSS and JavaScript inside of an Expression Web panel or dialog to build powerful new functionality instead of how to integrate your ideas into Expression Web itself.

1. If you haven't downloaded the Add-in already you can download the Add-in Builder from here. Install the .xadd file in Expression Web 4 via the Tools -> Add-ins menu. Click the Install button and choose the .xadd file you just downloaded.

2.Once you have installed the Add-in Builder add-in you can access it in Expression Web 4 via Tools > Add-in Builder.

3.The first step is to describe your add-in, including name, description, homepage, and version. (I'll publish another post in the near future to describe the other more advanced options in this dialog.)

 

4. To create a panel for your add-in, click Add Panel. Name, Source, and ID are required fields.

 

5. Click Insert, and then click Create Add-in. That’s it; it’s that easy to create your own Add-ins.

After the Add-in is created,  a new site appears in Expression Web 4, with your Addin.xml file and an empty html file (the content of the panel you just defined!).

 

At this point, restart Expression Web 4. Upon restarting, the Add-in panel (or, if you selected, a dialog or assembly) will automatically be installed and available for use.

7. If you created an Add-in panel, go to the Panels menu and click the name you gave for your panel.

 

A panel hosting the empty html page opens.

 

The panel can be docked, moved, pinned, etc… within the Expression Web 4 application just like any other default panel!

8.Open panel.html from the site Expression Web created for your Add-in. Add <h1>Hello World</h1> to the page and save it.

9.Right click inside your open “My First Panel” tab and choose Refresh. You should be able to immediately see the HTML you added rendered in your panel!

Marc Kapke, Software Development Engineer in Test

Comments

  • Anonymous
    June 07, 2010
    Addons in .net would be much more useful.

  • Anonymous
    June 08, 2010
    @ZippyV Building Add-ins in .NET has been available in most releases of Expression Web and is still available in version 4. You can build them almost exactly the same way you build an Office Add-in.

  • Anonymous
    June 09, 2010
    @ZippyV We just uploaded the Visual Studio template to build Managed Add-ins to the community gallery. gallery.expression.microsoft.com/.../xWeb4SDK If you are interested in building managed add-ins the above template will make getting started much easier.

  • Anonymous
    June 09, 2010
    The comment has been removed

  • Anonymous
    August 03, 2010
    How to you add an item to the code view contextmenu?

  • Anonymous
    August 03, 2010
    Hi krr, The current extensibility model does not support editing the context menu. Just curious...what would you like to change in the context menu? Anna

  • Anonymous
    August 03, 2010
    Steve, have you seen our blog post on the Bing Map plug-in? blogs.msdn.com/.../create-useful-professional-looking-extensions-to-expression-web.aspx

  • Anonymous
    August 05, 2010
    Anna, I created an addin that adds menu items to the format menu to make the current selection Titlecase, Uppercase, or Lowercase. I would like to add the commands to the context menu in both the Design and Code mode. -Krr

  • Anonymous
    August 05, 2010
    The comment has been removed

  • Anonymous
    August 05, 2010
    Couple things you will need to do to your DLL

  1. class and methods to be called both need to be public
  2. add a proj reference to C:Program Files (x86)Common Filesmicrosoft sharedMSEnvPublicAssembliesextensibility.dll or on 32 bit systems C:Program FilesCommon Filesmicrosoft sharedMSEnvPublicAssembliesextensibility.dll
  3. add: using System.Runtime.InteropServices;
  4. add [ComVisible(true)] above your class declaration 5.implement (stub) the Extensibility.IDTExtensibility2 interface in your class ala: public class Program : Extensibility.IDTExtensibility2
  5. add stubs for the interface (see below), replace the constructor with your class name (or you will not compile)
  6. recompile, replace DLL, restart xweb Here are the stubs to add to your class, will try to get a blog post out soon with better examples! #region IDTExtensibility2 Members        public void OnAddInsUpdate(ref Array custom)        {            throw new NotImplementedException();        }        public void OnBeginShutdown(ref Array custom)        {            throw new NotImplementedException();        }        public void OnConnection(object Application, Extensibility.ext_ConnectMode ConnectMode, object AddInInst, ref Array custom)        {        }        public void OnDisconnection(Extensibility.ext_DisconnectMode RemoveMode, ref Array custom)        {            throw new NotImplementedException();        }        public void OnStartupComplete(ref Array custom)        {            throw new NotImplementedException();        }        #endregion        #region JavaScript implementation        public Program()        {        }        public String Version()        {            return "1.0";        }        #endregion

  • Anonymous
    August 09, 2010
    jdixon, I'm receiving the following in the error log: Info: Line 5 column 1 error 'ToTitleCase()' 'Object doesn't support this property or method' I think maybe I'm having a problem with the manifest. Here's my Manifest: <addin src="WebLib.js" legacy="yes" developer="yes">  <load type="WebLib.Utilities, WebLib" name="WebLib" />   .... Here's my javascript code: function ToTitleCase() { xweb.document.selection.text = WebLib.ToTitleCase(xweb.document.selection.text); } Here's my code using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.InteropServices; namespace WebLib {    [ComVisible(true)]    public class Utilities : Extensibility.IDTExtensibility2    {        #region IDTExtensibility2 Members        public void OnAddInsUpdate(ref Array custom)        {            throw new NotImplementedException();        }        public void OnBeginShutdown(ref Array custom)        {            throw new NotImplementedException();        }        public void OnConnection(object Application, Extensibility.ext_ConnectMode ConnectMode, object AddInInst, ref Array custom)        {        }        public void OnDisconnection(Extensibility.ext_DisconnectMode RemoveMode, ref Array custom)        {            throw new NotImplementedException();        }        public void OnStartupComplete(ref Array custom)        {            throw new NotImplementedException();        }        #endregion        #region JavaScript implementation        public Utilities()        {        }        public String Version()        {            return "1.0";        }        #endregion        #region "String Helpers"        public static String ToTitleCase(string strText)        {            string strConvertedText = "";            try            {                System.Globalization.CultureInfo cultureInfo = System.Threading.Thread.CurrentThread.CurrentCulture;                System.Globalization.TextInfo TextInfo = cultureInfo.TextInfo;                strConvertedText = TextInfo.ToTitleCase(strText.ToLower());            }            catch            {                strConvertedText = strText;            }            return strConvertedText;        }        #endregion    } } -krr

  • Anonymous
    August 09, 2010
    We are calling the instance, and the static keyword is not going to work here, squash that, rebuild, replace, restart Expression Web and things should work (quick glance looks good otherwise). Wrote a primer and just published on my blog: http://blogs.msdn.com/b/jdixon/archive/2010/08/09/calling-managed-code-from-expression-web-4-html-js-extensibility-add-ins.aspx HTH JD

  • Anonymous
    August 09, 2010
    jdixon, Killed the static and bingo it worked! I have two more questions.

  1. Can you add a keyboard shortcut to a command? It would be nice if we could do something like this in the manifest: <menuitem parent="MENU_Format" before="MENU_Format_NewStyle" label="ToTitleCase" shortcut="ctrl-t"/>
  2. How the heck do you add a Separator to a menu? Thanks, -krr

  • Anonymous
    August 09, 2010
    Cool, glad it worked! Both asks (I am pretty sure) did not make V4, sadly. Tooltips did though :)

  • Anonymous
    August 09, 2010
    Oh well, maybe they will make v5! Thanks for all the great info.

  • Anonymous
    August 10, 2010
    I was asked to convert this to vb which seemed simple enough, however it came up with the following error in the ew log: Error: Could not load type 'WebLib.Utilities' from assembly 'WebLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. Here's the conversion: Imports System Imports System.Collections.Generic Imports System.Linq Imports System.Text Imports System.Runtime.InteropServices Namespace WebLib    <ComVisible(True)> _    Public Class Utilities        Implements Extensibility.IDTExtensibility2 #Region "IDTExtensibility2 Members"        Public Sub OnAddInsUpdate(ByRef custom As Array) Implements Extensibility.IDTExtensibility2.OnAddInsUpdate            Throw New NotImplementedException()        End Sub        Public Sub OnBeginShutdown(ByRef custom As Array) Implements Extensibility.IDTExtensibility2.OnBeginShutdown            Throw New NotImplementedException()        End Sub        Public Sub OnConnection(ByVal Application As Object, ByVal ConnectMode As Extensibility.ext_ConnectMode, ByVal AddInInst As Object, ByRef custom As Array) Implements Extensibility.IDTExtensibility2.OnConnection        End Sub        Public Sub OnDisconnection(ByVal RemoveMode As Extensibility.ext_DisconnectMode, ByRef custom As Array) Implements Extensibility.IDTExtensibility2.OnDisconnection            Throw New NotImplementedException()        End Sub        Public Sub OnStartupComplete(ByRef custom As Array) Implements Extensibility.IDTExtensibility2.OnStartupComplete            Throw New NotImplementedException()        End Sub #End Region #Region "JavaScript implementation"        Public Sub New()        End Sub        Public Function Version() As String            Return "1.0"        End Function #End Region #Region "String Helpers"        Public Function ToTitleCase(ByVal strText As String) As String            Dim strConvertedText As String = ""            Try                Dim cultureInfo As System.Globalization.CultureInfo = System.Threading.Thread.CurrentThread.CurrentCulture                Dim TextInfo As System.Globalization.TextInfo = cultureInfo.TextInfo                strConvertedText = TextInfo.ToTitleCase(strText.ToLower())            Catch                strConvertedText = strText            End Try            Return strConvertedText        End Function #End Region    End Class End Namespace -krr

  • Anonymous
    August 10, 2010
    Ping me on my blog, not a great place for this one :) blogs.msdn.com/.../jdixon

  • Anonymous
    August 18, 2010
    @mkapke.  We have an Extension/add-in that originally existed on FrontPage 95, and ported to Expression 1, recompiled in Expression 2.  It uses the Microsoft Add-in extensibility and the office-addin library version 12.  However, with Expression web 3 and 4, no new Office-addin library was provided for Version 13.  Also, when we replace the Microsoft Expression 2 .dlls with references to the Expression 4 .dlls, the application will not recomplie and not even all the .dlls will readd.  So, something did completely change between Expression 2 and expression 3 in terms of it being integrated as a simple office addin. I appreciate your Visual Studio Template but its written in C# and since its worthless to VB.NET programmers.  You need a template written in VB.NET PLEASE !

  • Anonymous
    February 22, 2015
    Closing tag </load> is not seen in the code.

  • Anonymous
    June 06, 2015
    Hello. I downloaded MEW 4 few weeks ago and I like it, but I simply cannot find the Add in builder anywhere on the web. Does anyone know any download link that works? Thanks a lot.