使用C#获取Excel工作表工作表名称列表

我试图在消息框中显示excel工作表名称，但似乎不起作用，有人能帮我吗？

我厌倦了添加以下内容，但它并没有显示任何内容。

string test = excelsheet.tostring(); 
messagebox.show(test); 

我将非常感谢你的回复。

提前感谢

/*
   Microsoft SQL Server Integration Services Script Task
   Write scripts using Microsoft Visual C# 2008.
   The ScriptMain is the entry point class of the script.
*/
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using System.Data.Odbc;
using System.Data.OleDb;
using System.IO;
namespace ST_2c44bffc2aef4e1295daeafee32354d2.csproj
{
    [System.AddIn.AddIn("ScriptMain", Version = "1.0", Publisher = "", Description = "")]
    public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
    {
        #region VSTA generated code
        enum ScriptResults
        {
            Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
            Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
        };
        #endregion
        /*
        The execution engine calls this method when the task executes.
        To access the object model, use the Dts property. Connections, variables, events,
        and logging features are available as members of the Dts property as shown in the following examples.
        To reference a variable, call Dts.Variables["MyCaseSensitiveVariableName"].Value;
        To post a log entry, call Dts.Log("This is my log text", 999, null);
        To fire an event, call Dts.Events.FireInformation(99, "test", "hit the help message", "", 0, true);
        To use the connections collection use something like the following:
        ConnectionManager cm = Dts.Connections.Add("OLEDB");
        cm.ConnectionString = "Data Source=localhost;Initial Catalog=AdventureWorks;Provider=SQLNCLI10;Integrated Security=SSPI;Auto Translate=False;";
        Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
        To open Help, press F1.
    */
        public void Main()
        {
            GetExcelSheetNames_2007(@"''AUSSMBSSOBI'Files'Public'Reports'APOS_Dashboard.xlsm");
            Dts.TaskResult = (int)ScriptResults.Success;
        }
        public string[] GetExcelSheetNames_2007(string excelFile)
        {
            {
                OleDbConnection objConn = null;
                System.Data.DataTable dt = null;

                try
                {
                    FileInfo fileInfo = new FileInfo(excelFile);
                    String connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + "D:''ETL''Sample.xlsx" + ";Extended Properties='"Excel 12.0 XML;HDR=YES'";";
                    objConn = new OleDbConnection(connString);
                    objConn.Open();
                    dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                    if (dt == null)
                    {
                        return null;
                    }
                    String[] excelSheets = new String[dt.Rows.Count];
                    int i = 0;

                    foreach (DataRow row in dt.Rows)
                    {
                        excelSheets[i] = row["TABLE_NAME"].ToString();
                        i++;
                    }

                    for (int j = 0; j < excelSheets.Length; j++)
                    {
                    }
                    return excelSheets;

                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                    return null;
                }
                finally
                {
                    if (objConn != null)
                    {
                        objConn.Close();
                        objConn.Dispose();
                    }
                    if (dt != null)
                    {
                        dt.Dispose();
                    }
                    Dts.TaskResult = (int)ScriptResults.Success;
                }
            }
        }
    }
}

foreach(String str in excelSheets)
{
    messagebox.show(str);
}

var excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Visible = true;
var excelWorkbook = excelApp.Workbooks.Add();
Worksheet excelSheet = excelWorkbook.Sheets.Add();
excelSheet.Name = "My sheetname";