Apperantly System.Version is not serializable so the value gets lost when going into the Run On Agent Sequence.
As a startiong point I used the code of Ewald Hoffman. Original Article: http://www.ewaldhofman.nl/post/2010/04/20/Customize-Team-Build-2010-e28093-Part-1-Introduction.aspx
Step 1: Create the Version Generator (+ offcource the necessary unit tests
)… 1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Text;
5: 6: namespace SharpSolutions.Tfs.Build.BuildTasks
7: {8: public sealed class AssemblyVersionGenerator: IAssemblyVersionGenerator
9: {10: /// <summary>
11: /// Generatas a new Assembly version
12: /// int the following format: Major.Minor.Build.Revision
13: /// Major: same as current version
14: /// Minor: same as current version
15: /// Build: 2 digit year since 2000* 1000 + day of year eg 10001 = Build run on 1 jan 2010
16: /// Revision: seconds since midnight
17: /// </summary>
18: /// <param name="currentVersion">used to retrieve current major and minor version</param>
19: /// <returns>A new Assembly version</returns>
20: public Version Generate(Version currentVersion)
21: {22: //If we did not force now use the real now
23: //O_o get it?
24: DateTime now = ((IAssemblyVersionGenerator)this).Now == default(DateTime)? DateTime.Now: ((IAssemblyVersionGenerator)this).Now;
25: int major = currentVersion.Major;
26: int minor = currentVersion.Minor;
27: int build = (now.Year % 2000) * 1000 + now.DayOfYear;
28: int revision = (int)(now - new DateTime(now.Year, now.Month, now.Day, 0, 0, 0)).TotalSeconds / 10;
29: 30: return new Version(major, minor, build, revision);
31: } 32: 33: DateTime IAssemblyVersionGenerator.Now { get; set; } 34: } 35: }2. Create a new Code Activity. Offcourse you can easily implement your own version of IAssemblyVersionGenerator
1: using System;
2: using System.Activities;
3: using Microsoft.TeamFoundation.Build.Client;
4: using Microsoft.TeamFoundation.Build.Workflow.Activities;
5: 6: namespace SharpSolutions.Tfs.Build.BuildTasks.Activities
7: { 8: [BuildActivity(HostEnvironmentOption.Controller)]9: public sealed class GenerateAssemblyNumber : CodeActivity<string>
10: {11: private IAssemblyVersionGenerator versionGenerator = new AssemblyVersionGenerator();
12: 13: [RequiredArgument]14: public InArgument<string> AssemblyInfoFileMask { get; set; }
15: 16: [RequiredArgument]17: public InArgument<string> Version { get; set; }
18: 19: [RequiredArgument]20: public InArgument<IBuildDetail> BuildDetail { get; set; }
21: 22: protected override string Execute(CodeActivityContext context)
23: {24: string assemblyInfoFileMask = context.GetValue(this.AssemblyInfoFileMask);
25: string version = context.GetValue(this.Version);
26: 27: Version currentVersion = new Version(version);
28: Version newVersion = versionGenerator.Generate(currentVersion);29: context.TrackBuildMessage(string.Format("New Version is {0}", newVersion.ToString()));
30: 31: return newVersion.ToString();
32: } 33: } 34: }Step 3: Update the version number in the AssemblyInfo.cs
1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Text;
5: using System.Activities;
6: using System.Text.RegularExpressions;
7: using System.IO;
8: using Microsoft.TeamFoundation.Build.Client
9: using Microsoft.TeamFoundation.Build.Workflow.Activities;
10: 11: namespace SharpSolutions.Tfs.Build.BuildTasks.Activities
12: { 13: [BuildActivity(HostEnvironmentOption.Agent)]14: public sealed class UpdateAssemblyVersion : CodeActivity
15: { 16: [RequiredArgument]17: public InArgument<string> VersionNumber { get; set; }
18: 19: [RequiredArgument]20: public InArgument<string> AssemblyInfoFileMask { get; set; }
21: 22: [RequiredArgument]23: public InArgument<string> SourcesDirectory { get; set; }
24: 25: // If your activity returns a value, derive from CodeActivity<TResult>
26: // and return the value from the Execute method.
27: protected override void Execute(CodeActivityContext context)
28: {29: // Obtain the runtime value of the input arguments
30: string sourcesDirectory = context.GetValue(this.SourcesDirectory);
31: string assemblyInfoFileMask = context.GetValue(this.AssemblyInfoFileMask);
32: Version newVersion = new Version(context.GetValue(this.VersionNumber));
33: 34: // Get all AssemblyInfo files
35: foreach (string file in Directory.EnumerateFiles(sourcesDirectory, assemblyInfoFileMask, SearchOption.AllDirectories))
36: {37: // Read the text from the AssemblyInfo file
38: string assemblyInfoVersionText = File.ReadAllText(file);
39: 40: string updatedContents = Utilities.UpdateAssemblyVersion(assemblyInfoVersionText, newVersion);
41: 42: File.WriteAllText(file, updatedContents); 43: } 44: } 45: 46: } 47: }