Question

我在我的程序中使用下面的C＃代码，使用oledbconnection将excel 97 - 2003电子表格数据读入数据表，并且在当前上下文中不存在该名称。

DataTable rs = null;

string path = Path.GetFullPath(filePath);
odConnection = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1;';");
odConnection.Open();
OleDbCommand cmd = new OleDbCommand(); ;
OleDbDataAdapter oleda = new OleDbDataAdapter();
DataSet ds = new DataSet();
DataTable dt = odConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetName = string.Empty;
if (dt != null)
{
    sheetName = dt.Rows[0]["Sheet_Name"].ToString();
}

cmd.Connection = odConnection;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT * FROM [" + sheetName + "]";
oda = new OleDbDataAdapter(cmd);
oda.Fill(ds, "excelData");
rs = ds.Tables["excelData"];

Answer 1

以下是如何从xlsx文件中获取特殊Sheet的所有列和行的示例。此代码从xlsx文件中获取Sheet2的所有数据，并使用该值填充DataTable。

希望这会对你有帮助。

using System;
using System.Data;
using System.Data.OleDb;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {
            DataTable rs = new DataTable();

            using (var odConnection = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\Users\IIG\Desktop\test.xlsx;Extended Properties='Excel 12.0;HDR=YES;IMEX=1;';"))
            {
                odConnection.Open();

                using (OleDbCommand cmd = new OleDbCommand())
                {
                    cmd.Connection = odConnection;
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = "SELECT * FROM [Sheet2$]";
                    using (OleDbDataAdapter oleda = new OleDbDataAdapter(cmd))
                    {
                        oleda.Fill(rs);
                    }
                }
                odConnection.Close();
            }
            foreach(DataRow row in rs.Rows)
            {
                foreach(object item in row.ItemArray)
                {
                    Console.Write(item +"\t");
                }
                Console.WriteLine();
            }
        }
    }
}

Answer 2

下面一行可能会导致问题 -

eventData = {
  id: id,
  sysid: sysid,
  title: title,
  start: event.start.format(),
  end: event.end.format() || event.start.format(),
  description: description,
  otherinformation: otherinformation,
  page: page,
  action: action

};

尝试使用

if (dt != null)
    {
        sheetName = dt.Rows[0]["Sheet_Name"].ToString();
    }

这应该返回工作表的名称。

将excel电子表格读入数据表

2 个答案: