DataView dv = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);//用SqlDataSource1的Select方法,通过DataSourceSelectArguments查询参数执行数据筛选.不过你这里参数为空.
foreach (DataRow dr in dv.Table.Rows)
{//逐行输出数据视图(DataView)对象里所有数据
Response.Write(dr["userName"]);
Response.Write(dr["password"]);
Response.Write(dr["sex"]);
Response.Write(dr["age"]);
Response.Write("<br>");
}