C#Excelマクロの呼び出し

using System;

using Excel = Microsoft.Office.Interop.Excel;



namespace WindowsFormsApplication1

{

    /// <summary>

    ///  Excel VBA 

    /// </summary>

    public class ExcelMacroHelper

    {

        /// <summary>

        ///  Excel 

        /// </summary>

        /// <param name="excelFilePath">Excel </param>

        /// <param name="macroName"> </param>

        /// <param name="parameters"> </param>

        /// <param name="rtnValue"> </param>

        public void RunExcelMacro(Excel.Application app, string macroName, object[] parameters, out object rtnValue)

        {

            //  ， 

            object[] paraObjects;

            if (parameters == null)

                paraObjects = new object[] { macroName };

            else

            {

                int paraLength = parameters.Length;

                paraObjects = new object[paraLength + 1];

                paraObjects[0] = macroName;

                for (int i = 0; i < paraLength; i++)

                    paraObjects[i + 1] = parameters[i];

            }

            rtnValue = this.RunMacro(app, paraObjects);

        }



        /// <summary>

        ///  

        /// </summary>

        /// <param name="oApp">Excel </param>

        /// <param name="oRunArgs"> （ ， ）</param>

        /// <returns> </returns>

        private object RunMacro(object app, object[] oRunArgs)

        {

            object objRtn;     //  



            //  

            objRtn = app.GetType().InvokeMember("Run", System.Reflection.BindingFlags.Default | System.Reflection.BindingFlags.InvokeMethod, null, app, oRunArgs);



            return objRtn;

        }

    }

}

使用方法

app = new Microsoft.Office.Interop.Excel.Application();

app.Visible = true;



string filePath = @"F:\test.xlsm";

Workbook wb = app.Workbooks.Open(filePath);



object objRtn = new object();



//  Excel ， Excel

ExcelMacroHelper excelMacroHelper = new ExcelMacroHelper();     

excelMacroHelper.RunExcelMacro(app,"hong",new Object[] { " " },out objRtn);



MessageBox.Show(objRtn.ToString());

Excelに「モジュール」を追加

Function hong(title As String)

    Dim ws As Worksheet

    Set ws = ThisWorkbook.Worksheets("Sheet1")

    ws.Cells(1, 1).Value = title & ",123"

    hong = title & ",123"

End Function