关于jquery ajax 调用带参数的webservice返回XML数据一个小细节

$.ajax({
type: "post",
url: "_service.asmx/getDataFromATable",
data:" { tablename: temp }",
dataType: "XML"
...

[WebMethod]
public DataSet getDataFromATable(string tablename)
{
DataSet ds = new DataSet();
using (SqlConnection con=new SqlConnection(connectionString))
{
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = string.Format("select * from {0}",tablename);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
}
return ds;
}
[code]
网上搜到的，都说如果是无参数的WS，用上面的data:"{}"是没有错的，但有参的这样传会出错。
其实很简单，只需要做一点小小的修改就可以了
正确代码
[code]
$.ajax({
type: "post",
url: "_service.asmx/getDataFromATable",
data: { tablename: temp },
dataType: "XML",
...