COM Error when instantiating MSProject "ApplicationClass" object (Interop/C#/.NET)

• 24 พฤษภาคม 2553 13:55

   

   
  

  0

  Hi,

  Firstly, I hope I'm posting this in the right place - there's lots of info out there about using .NET and the COM Interops with Excel and Word - and I have written many applications using these methods - but not much on programming Project in this way.

  I am looking to create a Windows Forms program which opens an existing Project 2003 file - just the file; no server interaction whatsoever - processes the data it contains and then passes it on.  Sadly I'm falling at the first hurdle.  If I were doing Excel or Word I would first create an instance of the Interop's "ApplicationClass", then create a related Workbook or Document respectively.  Reading what information is out there on the net, this seems like a valid approach, but I'm getting a COM error.

  Here's my code, edited a bit for brevity:

  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Text;
  using System.Windows.Forms;
  using msp = Microsoft.Office.Interop.MSProject;
  using System.Runtime.InteropServices;
  
  namespace ProjectMangle
  {
    public partial class MainForm : Form
    {
      private msp.ApplicationClass p_app;
  
      public MainForm()
      {
        InitializeComponent();
      }
  
      public void Finalize()
      {
        if (p_app != null)
        {
          p_app.Quit();
          Marshal.ReleaseComObject(e_app);
        }
      }
  
      #region UI Handlers
      private void btFileLoad_Click(object sender, EventArgs e)
      {
        doLoadFile();
      }
  
      private void btQuit_Click(object sender, EventArgs e)
      {
        doClose();
      }
      #endregion
  
      private void doClose()
      {
        // close
        this.Close();
      }
  
      private void doLoadFile()
      {
        try
        {
          p_app = new msp.ApplicationClass();
        }
        
        catch (COMException ex)
        {
          Console.WriteLine(ex.Message);
        } 
      }
    }
  }
  

  Running this code gets me the following error:

  Creating an instance of the COM component with CLSID {36D27C48-A1E8-11D3-BA55-00C04F72F325} from the IClassFactory failed due to the 
  
  
  following error: 80010001.
  
  

   

  If anyone could throw some light on whats causing this I'd me most grateful - I have tried most of solutions I have found out on the net - all of those that seem to have a similar situation - with no joy.

  If you need any more info, please ask.  If I've posted this to the wrong place, please advise as to the more appropriate location and I will move the discussion there.

  Thank you for your time.

  David Falconer.

   

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