[英]Unrecognized database format
I would like to ask, why I get this exception when I try to connect excel 2000/3 and also 2010? 我想问一下,当我尝试连接excel 2000/3和2010时,为什么会出现此异常?
using System;
using System.Collections.Generic;
using System.Text;
using System.Data.OleDb;
namespace md1_connect
{
class Program
{
static void Main (string[] args)
{
string ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\"Book1.xls\"";
OleDbConnection MyConn = new OleDbConnection(ConnectionString);
OleDbCommand cmd = new OleDbCommand("SELECT * FROM[Sheet2$]", MyConn);
MyConn.Open();
OleDbDataReader dataReader = cmd.ExecuteReader();
while (dataReader.Read())
{
Console.WriteLine(dataReader.GetDouble(0));
}
MyConn.Close();
}
}
}
You need to tell the provider you're using Excel 97-2003 (xls as opposed to xlsx) by appending: 你需要通过追加告诉提供商你正在使用Excel 97-2003(xls而不是xlsx):
Extended Properties="Excel 8.0"
Eg 例如
string ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\"Book1.xls\";Extended Properties=\"Excel 8.0\"";
I dont know what the exception is but I may know what you are talking about. 我不知道异常是什么,但我可能知道你在说什么。 You are probably compiling as x64 bit, please force it to run as 32 bit (x86).
您可能正在编译为x64位,请强制它以32位(x86)运行。 I believe that setting can be set in your Project Properties under Build Options
我相信可以在Build Options下的Project Properties中设置设置
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