[assembly: System.Reflection.AssemblyVersion(“1.2.3.0″)]
[assembly: System.Reflection.AssemblyFileVersion(“1.2.3.0″)]

So we will replace the last 0 with the current Subversion revision number. How to do this? One way to achieve this is to modify the AssemblyInfo.cs and read the modified number from that exists. The file modification is easy with MSBuild Community Task FileUpdate

<FileUpdate Files=“Cic.P001001PropertiesAssemblyInfo.cs”
            Regex=“(d+).(d+).(d+).(d+)”
            ReplacementText=“$1.$2.$3.$(RevisionNumber)” />

But how to read it back? Well there is no easy way. I have written a custom MSBuidl task to achieve this like this:

<AssemblyInfoReader Path=“PropertiesAssemblyInfo.cs”
                    Property=“AssemblyVersion“>
    <Output TaskParameter=“Value” ItemName=“ApplicationVersion” />
</AssemblyInfoReader>

Writing a custom MSBuild task is fairly easy. You have to Reference Microsoft.Build.Framework and Microsoft.Build.Utilities and implement Microsoft.Build.Framework.ITask. Just like this:

namespace Cic.MsBuildTasks
{
    public class AssemblyInfoReader : Microsoft.Build.Framework.ITask
    {
        #region Private Varaibels

        private string path;
        private string property;
        private string value;

        #endregion

        #region Fields
        [Microsoft.Build.Framework.Required]
        public string Path
        {
            get { return path; }
            set { path = value; }
        }

        [Microsoft.Build.Framework.Required]
        public string Property
        {
            get { return property; }
            set { property = value; }
        }

        [Microsoft.Build.Framework.Output]
        public string Value
        {
            get { return this.value; }
            set { this.value = value; }
        }

        #endregion

        #region ITask Members
        private Microsoft.Build.Framework.IBuildEngine engine;
        Microsoft.Build.Framework.IBuildEngine
            Microsoft.Build.Framework.ITask.BuildEngine
        {
            get
            {
                return engine;
            }
            set
            {
                engine = value;
            }
        }

        bool Microsoft.Build.Framework.ITask.Execute()
        {
            string message;
            value = string.Empty;
            try
            {
                value = MyReadAssemblyInfoProperty();
                message = string.Format(
                    “AssemblyInfo property {0} read. Property value {1}”,
                    property, value);
            }
            catch (System.Exception e)
            {
                message = string.Format(
                    “Error reading AssemblyInfo property {0}. Error: {1}”,
                    property, e.Message);
            }

            Microsoft.Build.Framework.BuildMessageEventArgs args =
                new Microsoft.Build.Framework.BuildMessageEventArgs(
                message, string.Empty, “AssemblyInfoReaderTask”,
                Microsoft.Build.Framework.MessageImportance.Normal);
            engine.LogMessageEvent(args);

            return true;
        }

        private Microsoft.Build.Framework.ITaskHost host;
        Microsoft.Build.Framework.ITaskHost Microsoft.Build.Framework.ITask.HostObject
        {
            get
            {
                return host;
            }
            set
            {
                host = value;
            }
        }

        #endregion

        #region Internals
        private string MyReadAssemblyInfoProperty()
        {
            string propertyValue;

            // Eraly return
            if (!System.IO.File.Exists(path)) return “”;

            foreach (string line in System.IO.File.ReadAllLines(path))
            {
                if (line.Contains(property))
                {
                    try
                    {
                        propertyValue = line.Remove(0, line.IndexOf(‘”‘) + 1);
                        propertyValue = propertyValue.Remove(
                            propertyValue.LastIndexOf(‘”‘),
                            propertyValue.Length - propertyValue.LastIndexOf(‘”‘));
                        // return matching property value
                        return propertyValue;
                    }
                    catch
                    {
                        // Ignore errors
                    }
                }
            }

            return string.Empty;
        }
        #endregion
    }
}

I instantly lookd at the third possibility. since I have Vista on board I was thinking about writing my own Sidebar Gadget (you know the little programs written in HTML an JavaScript, sticked to the right side of your screen). Of course I wonted it to by at least useful ;-) I thought about writing a small Leasing Calculator. I had my leasing mathematics library ready, but it was written in C#. I didn’t feel like rewriting it in JavaScript - what for? So Script# was a blast for me. I had my Leasing Calculator gadget in view hours.

What do you need to start working with Script#:

1. download the latest binaries from Script# project page

2. install it

3. create new Visual C# -> Script# -> Sidebar Gadget project in Visual Studio

You will get quite useful project template. The inside of Content folder is your gadget. If you compile everything Script# will transform your C# into JavaScript and place it in this folder. The last thing you have to do is to copy this folder into your Vista Gadgets folder (C:\Users\user\AppData\Local\Microsoft\Windows Sidebar\Gadgets\). You will have to do the same every time you will compile. Surely it is something to automate. The easiest way is to use the Post-build event in your project and a small MSBuild script that will copy the needed files to the place they should by.

$(WinDir)\Microsoft.NET\Framework\v2.0.50727\msbuild.exe $(SolutionDir)build.msbuild

And use this script:

<Project DefaultTargets=“Deploy” xmlns=“http://schemas.microsoft.com/developer/msbuild/2003“>
  <PropertyGroup>
    <DeploymentFolder>YourVistaGadgetFolder.gadget</DeploymentFolder>
  </PropertyGroup>
  <ItemGroup>
    <DeploymentSourceFiles Include=“LeasingCalculatorContent***.*” />
  </ItemGroup>
   <Target Name=“Deploy“>
    <RemoveDir Directories=“$(DeploymentFolder)” ContinueOnError=“false“></RemoveDir>
    <Copy SourceFiles=“@(DeploymentSourceFiles)”
      DestinationFiles=“@(DeploymentSourceFiles->
      ‘$(DeploymentFolder)%(RecursiveDir)%(Filename)%(Extension)’)“/>
   </Target>
</Project>

So you are equipped with fully functional development platform for Vista Sidebar Gadgets.

One more thing. I do think that writing a JavaScript in C# is a good idea ;) but if you are new to Sidebar Gadgets you probably would like to take one step by step tutorial. It would help to understand Gadgets on the low level an d will get you up to speed with Schipr# later.

• setting up CI server with CruiseControl.NET
• creating one click build script with MSBuild
• incorporating unit testing and code coverage into CI process
• using WebDashboard and CCTray to control the process
• introducing code analyze with FxCop
• creating install file and deploying the project.