Create a Script Task in c# against Sql Serveur 2008 R2

Question

Hello,
I am trying to create a package with C#,I having issues to create the script task.My code is :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SqlServer.Dts.Runtime;
using Microsoft.SqlServer.Dts.Tasks.ScriptTask;
using System.IO;
using Microsoft.SqlServer.VSTAHosting;
            Package pkg = new Package();
            Executable exec=pkg.Executables.Add("STOCK:ScriptTask");
            TaskHost th = (TaskHost)exec;
            ScriptTask task = (ScriptTask)th.InnerObject;
And i am getting this bug on the last line ,
{"Unable to cast COM object of type 'System.__ComObject' to class type 'Microsoft.SqlServer.Dts.Tasks.ScriptTask.ScriptTask'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they
can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface."}
I add as a reference these dlls :
Microsoft.SqlServer.ScriptTask
Microsoft.SqlServer.DTSPipelineWrap
Microsoft.SQLServer.ManagedDTS
Microsoft.SqlServer.ScriptTask
Microsoft.SqlServer.VSTAScriptingLib
Microsoft.VisualStudio.Tools.Applications.DesignTime.v9.0
System.AddIn
All the best
Vincent

Answer 1

Probably you need to follow the notion from https://msdn.microsoft.com/en-us/library/microsoft.sqlserver.dts.tasks.scripttask.scripttask.scripttask.aspx
Package pkg = new Package();
Executable exec = pkg.Executables.Add("STOCK:ScriptTask");
TaskHost th = exec as TaskHost;
ScriptTask Task = th.InnerObject as ScriptTask;
Arthur
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