How To Precompile A Script Task Through The API?

I've been working on adding "copy a script task from one package to another package" functionality to my SSIS Package Manager (PacMan - http://www.codeplex.com/pacman) utility in order to ease some of the pain I'm feeling in my main SSIS dev project these days. The code I have today looks something like this:




Code Block
public void CopyScriptTaskPrototype(PackageUtil sourcePackage)
{
// Basic logic taken from https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=941508&SiteID=1
const string CODE_MONIKER_TEMPLATE = "dts://Scripts/{0}/ScriptMain.vsaitem";
const string PROJ_MONIKER_TEMPLATE = "dts://Scripts/{0}/{0}.vsaproj";
const string BINN_MONIKER_TEMPLATE = "dts://Scripts/{0}/{0}.dll";
try
{
// Get the source task
TaskHost sourceScriptTaskHost = sourcePackage.ssisPackage.EventHandlers["OnPreExecute"].Executables[0] as TaskHost;
ScriptTask sourceScriptTask = sourceScriptTaskHost.InnerObject as ScriptTask;
// Get the target container
if (!this.ssisPackage.EventHandlers.Contains("OnPreExecute"))
{
this.ssisPackage.EventHandlers.Add("OnPreExecute");
}
DtsEventHandler targetContainer = this.ssisPackage.EventHandlers["OnPreExecute"];
// Delete the target task, if it exists
if (targetContainer.Executables.Contains(sourceScriptTaskHost.Name))
{
targetContainer.Executables.Remove(sourceScriptTaskHost.Name);
}
TaskHost targetScriptTaskHost = targetContainer.Executables.Add("STOCK:SCRIPTTASK") as TaskHost;
targetScriptTaskHost.Name = sourceScriptTaskHost.Name;
targetScriptTaskHost.Description = sourceScriptTaskHost.Description;
ScriptTask targetScriptTask = targetScriptTaskHost.InnerObject as ScriptTask;
targetScriptTask.SetUniqueVsaProjectName();
string sourceCodeMoniker = string.Format(CODE_MONIKER_TEMPLATE, sourceScriptTask.VsaProjectName);
string targetCodeMoniker = string.Format(CODE_MONIKER_TEMPLATE, targetScriptTask.VsaProjectName);

string sourceProjectMoniker = string.Format(PROJ_MONIKER_TEMPLATE, sourceScriptTask.VsaProjectName);
string targetProjectMoniker = string.Format(PROJ_MONIKER_TEMPLATE, targetScriptTask.VsaProjectName);
string sourceBinaryMoniker = string.Format(BINN_MONIKER_TEMPLATE, sourceScriptTask.VsaProjectName);
string targetBinaryMoniker = string.Format(BINN_MONIKER_TEMPLATE, targetScriptTask.VsaProjectName);
targetScriptTask.CodeProvider.PutSourceCode(targetCodeMoniker,
sourceScriptTask.CodeProvider.GetSourceCode(sourceCodeMoniker));
targetScriptTask.CodeProvider.PutSourceCode(targetProjectMoniker,
sourceScriptTask.CodeProvider.GetSourceCode(sourceProjectMoniker));
// We've commented this out due to errors at package runtime
//targetScriptTask.CodeProvider.PutBinaryCode(targetBinaryMoniker,
// sourceScriptTask.CodeProvider.GetBinaryCode(sourceBinaryMoniker));
targetScriptTask.PreCompile = false; // We want to be able to say "true" here
}
catch (Exception ex)
{
throw new ApplicationException("Could not copy script task - oh no!", ex);
}
}

This method exists within a PackageUtil class that has a private member variable named ssisPackage of type Microsoft.SqlServer.Dts.Runtime.Package, and for my current purposes I only need to worry about copying the first task from the OnPreExecute event handler for the package, so some things are hard-coded now that won't be later on.

Now, with that said, here is the question: How, through the .NET API can I force the Script Task code to be compiled so that I can set the PreCompile flag to true and have it work as if I'd done the work through VSA in the designer.


Thanks in advance to anyone who can help out here. This is "icing on the cake" to some extent, as the core functionality I need is currently in place, but it would be excellent to have this 100% complete.