jquery WebService 传递数组参数
$.ajax({
  type: "POST",
  contentType: "application/json; charset=utf-8",
  url: "/WebService/ProductGroupService.asmx/SaveProductGroup",
  data: "{gArray:" + gArray+ ",QArray:" + QArray+ ",XArray:" + XArray+ ",PArray:" + PArray+ "}",
  dataType: 'json',
  success: function(data) {
  alert("成功");
  },
  error: function(err) {
  alert(err.responseText);
  }
  });

public bool SaveProductGroup(ArrayList gArray, ArrayList QArray, ArrayList XArray, ArrayList PArray)
  {
  Console.WriteLine(gArray[1]);
  bool result = true;
  return result;
  }

data: "{gArray:" + gArray+ ",QArray:" + QArray+ ",XArray:" + XArray+ ",PArray:" + PArray+ "}",
这样写对么？
提示无效的web方法

------解决方案--------------------
data: gArray=gArray&QArray=QArray......

Try it.

而且，必须要返回JSON格式的数据才可以，否则会一直木有反应
------解决方案--------------------
亲，你这个URL可以访问么：/WebService/ProductGroupService.asmx/SaveProductGroup