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Could not find installable ISAM

程序中去读EXCEL文档,以前一直参考《Asp.net读取Excel文件 2》http://www.cnblogs.com/insus/archive/2011/05/05/2037808.html
这个连接语句或是方法。

但在这次开发中,再次引用时,即出现了异常:“Could not find installable ISAM”。

奇怪!

经过一番查阅资料和修改,Insus.NET把代码稍作修改一调整:
技术分享

程序又可以跑起来了...

技术分享
 public static string ExcelConnectionString(string filePhysicalPath)        {            string connectionString = string.Empty;            string fileExtension = filePhysicalPath.Substring(filePhysicalPath.LastIndexOf(".") + 1);            switch (fileExtension)            {                case "xls":                    connectionString = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"", filePhysicalPath);                    break;                case "xlsx":                    connectionString = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 8.0;HDR=YES\"", filePhysicalPath);                    break;            }            return connectionString;        }
Source Code

 

Could not find installable ISAM