无法阅读 excel sheet

Question

这很奇怪，我正在尝试使用数据 reader 访问 excel sheet 并收到一个我无法弄清楚的错误。想知道是否有人遇到过同样的问题。

Microsoft Office Access 数据库引擎找不到对象 'SHEETNAME'。确保该对象存在并且您正确拼写了它的名称和路径名

var str = new StringBuilder();

        using (var myConnection = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=foreignkeys.xlsx;Extended Properties='Excel 8.0;HDR=Yes'"))
        {
            using (var myCommand = new OleDbCommand())
            {
                myConnection.Open();
                myCommand.Connection = myConnection;
                myCommand.CommandText = "select TableName, ColumnName from [SHEETNAME]";

                using (var dr = myCommand.ExecuteReader())
                {
                    while (dr.Read())
                    {
                        var tableName = dr["TableName"].ToString();
                        var columnName = dr["ColumnName"].ToString();
                        var tmp = columnName;
                        tmp = tmp.Replace("ID", "").Replace("Id", "");

                        str.AppendLine(string.Format("IF NOT EXISTS ( SELECT 1 FROM sys.foreign_keys AS FK WHERE name = 'FK_{0}_{1}' AND parent_object_id = OBJECT_ID('{2}'))", tableName, tmp, tableName));
                        str.AppendLine("BEGIN");
                        str.AppendLine(string.Format("ALTER TABLE dbo.{0} WITH CHECK", tableName));
                        str.AppendLine(string.Format("ADD CONSTRAINT FK_{0}_{1} FOREIGN KEY ({2}) REFERENCES dbo.{3}({4})", tableName, tmp, columnName, tmp, columnName));
                        str.AppendLine("END");
                        str.AppendLine("");
                        str.AppendLine("");
                    }
                }                    
            }
        }
        return str.ToString();

Answer 1

假设您的 excel 文件包含一个名为 SHEETNAME 的 sheet 那么您需要编写

 myCommand.CommandText = "select TableName, ColumnName from [SHEETNAME$]";
                                                                      ^

无法阅读 excel sheet

Unable to read excel sheet

.net

c#

excel