Microsoft.Jet.OLEDB.4.0 导入excel报"找不到可安装的ISAM"

connstring = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + fileName + ";Extended Properties=Excel 8.0;;HDR=YES;IMEX=1"; using (OleDbConnection conn = new OleDbConnection(connstring)) { conn.Open(); DataTable sheetsName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,new Object[] { null, null, null, "TABLE" });//得到所有sheet的名字 string firstSheetName = sheetsName.Rows[0][2].ToString(); //得到第一个sheet的名字 string sql = string.Format("SELECT * FROM [{0}]", firstSheetName); //查询字符串 //string sql = string.Format("SELECT * FROM [{0}] WHERE [日期] is not null", firstSheetName); //查询字符串 OleDbDataAdapter ada = new OleDbDataAdapter(sql, connstring); DataSet set = new DataSet(); ada.Fill(set); return set.Tables[0]; }

将上述代码中

connstring = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + fileName + ";Extended Properties=Excel 8.0;;HDR=YES;IMEX=1
加上单引号，如下，即可解决问题。

connstring = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + fileName + ";Extended Properties=‘Excel 8.0;;HDR=YES;IMEX=1‘";

Microsoft.Jet.OLEDB.4.0 导入excel报"找不到可安装的ISAM"

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