Running an Excel Macro via C#: Run a macro from one workbook on another?

Question

I am looking to run a macro, let's call it Macro01 from WorkSheet01 on WorkSheet02.

Using Microsoft.Office.Interop.Excel Namespace I have opened a WorkSheet01.

public void Main_CodedStep()
    {
        // Object for missing (or optional) arguments.
        object oMissing = System.Reflection.Missing.Value;

        // Create an instance of Microsoft Excel
        Excel.ApplicationClass oExcel = new Excel.ApplicationClass();

        // Make it visible
        oExcel.Visible = true;

        // Open Worksheet01.xlsm
        Excel.Workbooks oBooks = oExcel.Workbooks;
        Excel._Workbook oBook = null;
        oBook = oBooks.Open("C:\\Users\\Admin\\Documents\\Worksheet01.xlsm", oMissing, oMissing,
            oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, 
            oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);
    }

I then use an automated script to pull a report. This report is opened via IE's download prompt and not the Interop.

The problem comes when I try to run the macro via C# (I made another new Excel.ApplicationClass(); only so it compiled, I believe this is one of my missteps.)

public void FirstMacro_CodedStep()
    {
        // Create an instance of Microsoft Excel
        Excel.ApplicationClass oExcel = new Excel.ApplicationClass();
        Console.WriteLine("ApplicationClass: " + oExcel);

        // Run the macro, "First_Macro"
        RunMacro(oExcel, new Object[]{"Worksheet01.xlsm!First_Macro"});

        //Garbage collection
        GC.Collect();
    }

    private void RunMacro(object oApp, object[] oRunArgs)
    {
        oApp.GetType().InvokeMember("Run", System.Reflection.BindingFlags.Default | System.Reflection.BindingFlags.InvokeMethod, null, oApp, oRunArgs);
    }

When this method runs it runs the macro from Worksheet01 on Worksheet01 instead of Worksheet02. Also it was looking for the worksheet in My Documents so I moved it over to see what would happen.

Recap:

1. Open Worksheet01
2. Via scripting get and open a report (Worksheet02) from MSIE
3. Run Macro01 from Worksheet01 on Worksheet02

Resources:

http://support.microsoft.com/kb/306683

http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.aspx

For those who would like to try it add this to your using directives:

using System.Reflection;
using Microsoft.Office.Core; //Added to Project Settings' References from C:\Program Files (x86)\Microsoft Visual Studio 10.0\Visual Studio Tools for Office\PIA\Office14 - "office"
using Excel = Microsoft.Office.Interop.Excel; //Added to Project Settings' References from C:\Program Files (x86)\Microsoft Visual Studio 10.0\Visual Studio Tools for Office\PIA\Office14 - "Microsoft.Office.Interop.Excel"

Answer 1

I found a solution that I'd like to share. First, I removed the bit where I opened Worksheet01. I then had my automated script save the .CSV to My Documents. I then used the code I had to open Worksheet01 to open the downloaded file. The key thing at this point is that Worksheet01 is in the Documents folder with Worksheet02. Lastly I used the code to run the macro from Worksheet01, which runs on Worksheet02.

    public void WebTest_CodedStep()
    {
        // Object for missing (or optional) arguments.
        object oMissing = System.Reflection.Missing.Value;

        // Create an instance of Microsoft Excel
        Excel.ApplicationClass oExcel = new Excel.ApplicationClass();

        // Make it visible
        oExcel.Visible = true;

        // Define Workbooks
        Excel.Workbooks oBooks = oExcel.Workbooks;
        Excel._Workbook oBook = null;

        // Get the file path
        string path = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
        path = path + "\\Worksheet02.csv";

        //Open the file, using the 'path' variable
        oBook = oBooks.Open(path, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing,  oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);

        // Run the macro, "First_Macro"
        RunMacro(oExcel, new Object[]{"Worksheet01.xlsm!First_Macro"});

        // Quit Excel and clean up.
        oBook.Close(false, oMissing, oMissing);
        System.Runtime.InteropServices.Marshal.ReleaseComObject (oBook);
        oBook = null;
        System.Runtime.InteropServices.Marshal.ReleaseComObject (oBooks);
        oBooks = null;
        oExcel.Quit();
        System.Runtime.InteropServices.Marshal.ReleaseComObject (oExcel);
        oExcel = null;

        //Garbage collection
        GC.Collect();
    }

    private void RunMacro(object oApp, object[] oRunArgs)
    {
        oApp.GetType().InvokeMember("Run", System.Reflection.BindingFlags.Default | System.Reflection.BindingFlags.InvokeMethod, null, oApp, oRunArgs);
    }

Answer 2

I ran this C# VSTO code to invoke a VBA Macro, this is the syntax I use:

this.Application.Run("mymacro");

Edit:

Macros are Workbook wide, perhaps you need to make Sheet2 the active worksheet before running the macro, eg:

foreach (Worksheet worksheet in workbook.Sheets.ComLinq<Worksheet>())
{
    if (worksheet.Name == "Sheet2") worksheet.Activate();
}

Answer 3

    public void ExecuteMacro()
    {
    //    using Excel = Microsoft.Office.Interop.Excel;
    //    using System;
    //    using System.IO;

        string path = Environment.CurrentDirectory;
        string filePath = "";
        string[] fileEntries = Directory.GetFiles(".\\Source");
        foreach (string fileName in fileEntries)
        {
            if (fileName.IndexOf(".xlsm") > 0 && fileName.IndexOf("$")<1) filePath = fileName;
        }

        if (filePath == "") return;

        filePath = filePath.Replace(".\\", "\\");
        string fileDest = filePath.Replace("Source","Processed");
        filePath = path+filePath;
        fileDest = path+fileDest;

        Excel.Application ExcelApp = new Excel.Application();
        Excel.Workbook wb = ExcelApp.Workbooks.Open(filePath, ReadOnly: false);

        try
        {
            ExcelApp.Visible = false;
            ExcelApp.Run("UpdateSheets");

            try
            {
                File.Delete(fileDest);
            }
            catch (Exception) { }

            wb.SaveAs(fileDest);
        }
        catch (Exception) { }

        wb.Close(false);
        ExcelApp.Application.Quit();
        ExcelApp.Quit();
    }