c# - 使用 C# 将公式写入现有 Excel 工作表的语法是什么？

Question

我正在尝试使用 C# 将我在 VBA 中编写的内容转换为可执行文件。我的想法是将某些公式写入现有的 Excel 工作簿中。我有写入新工作簿的语法，但没有写入现有工作簿的语法。

Answer 1

经过尝试和测试

using System;
using System.Windows.Forms;
using System.IO;
using Excel = Microsoft.Office.Interop.Excel;

Namespace WindowsFormsApplication5
{
    public partial class Form1 : Form
    {
        Public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            Microsoft.Office.Interop.Excel.Application xlexcel;
            Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
            Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;

            object misValue = System.Reflection.Missing.Value;
            xlexcel = new Excel.Application();

            // Open a File
            xlWorkBook = xlexcel.Workbooks.Open("C:\\MyFile.xlsx", 0, true, 5, "", "", true,
            Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);

            // Set Sheet 1 as the sheet you want to work with
            xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);

            //////////////////////////////////////////////////////////
            // REST OF THE CODE HERE TO INTERACT WITH THE WORKSHEET//
            //////////////////////////////////////////////////////////

            //Once done close and quit Excel
            xlWorkBook.Close(true, misValue, misValue);
            xlexcel.Quit();

            releaseObject(xlWorkSheet);
            releaseObject(xlWorkBook);
            releaseObject(xlexcel);
        }

        private void releaseObject(object obj)
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                obj = null;
            }
            catch (Exception ex)
            {
                obj = null;
                MessageBox.Show("Unable to release the Object " + ex.ToString());
            }
            finally
            {
                GC.Collect();
            }
        }
    }
}