asp.net 读取Excel数据，填充DataSet 与GridView代码

asp教程.net 读取excel数据，填充dataset 与gridview代码
// 连接字符串

string ph = string.format("upload\{0}", name);
string xlspath = server.mappath(ph);
string connstr = "provider=microsoft.jet.oledb.4.0;" + "extended properties="excel 8.0;hdr=no;imex=1";" +  "data source=" + xlspath;
string sql_f = "select * from [{0}]";

oledbconnection conn = null;
oledbdataadapter da = null;
datatable tblschema = null;
ilist<string> tblnames = null;

// 初始化连接，并打开
conn = new oledbconnection(connstr);
conn.open();

//方法二

 连接字符串

dim xlspath as string = server.mappath("~/app_data/excelfile.xls") ' 绝对物理路径
dim connstr as string = "provider=microsoft.jet.oledb.4.0;data source=" & xlspath & "; extended properties=excel 8.0;"
' 查询语句
dim sql as string = "select * from [sheet1$]"

dim ds as dataset = new dataset()
dim da as oledb.oledbdataadapter = new oledb.oledbdataadapter(sql, connstr)
da.fill(ds) ' 填充dataset

' 在这里对dataset中的数据进行操作

' 输出，绑定数据
gridview1.datasource = ds.tables(0)
gridview1.databind()

上面代码是讲了绑定到gridview中的代码