js DataSet数据源处理代码

[Ajax.AjaxMethod()]
public DataSet GetDataSet()
{
OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:工作项目分析 estdb.mdb;Persist Security Info=True;");
DataSet ds = new DataSet();
try
{
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = "select * from t_name";
cmd.CommandType = CommandType.Text;
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
da.Fill(ds);
return ds;
}
catch
{
conn.Close();
throw;
}
}
[/code]

<script language="JavaScript"> 
// var ds =test.GetDataTable().value; //table数据源 
//alert(ds.Rows[i].level2; 
function getDataSet() 
{ 
var ds =test.GetDataSet().value; 
if(ds != null && typeof(ds) == "object" && ds.Tables != null) 
{ 
var s = new Array(); 
s[s.length] = "<table style='border: #000000 1px solid; color: #993333; font-family: 'Microsoft Sans Serif'; background-color: #ffff99;'>"; 
for(var i=0; i<ds.Tables[0].Rows.length; i++) 
{ 
s[s.length] = "<tr>"; 
s[s.length] = "<td>" + ds.Tables[0].Rows[i].id + "</td>"; 
s[s.length] = "<td>" + ds.Tables[0].Rows[i].f_date + "</td>"; 
s[s.length] = "<td>" + ds.Tables[0].Rows[i].f_name + "</td>"; 
s[s.length] = "</tr>"; 
} 
s[s.length] = "</table>"; 
document.getElementById("div1").innerHTML = s.join(""); 
} 
else 
{ 
alert("调用Ajax接口函数错误！"); 
} 
} 
</script>