AjaxPro执行返回null

[baibaip]

.cs

public static int flag = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
	AjaxPro.Utility.RegisterTypeForAjax(typeof(admin_admin_News));
        if (!IsPostBack)
        {
	 BindNewsClassData();
            SetBind("");
        }
    }
    [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.ReadWrite)]
    public int News_Orders()
    {
		if(flag == 0)
		{
			flag = 1;
			SetBind("P_Name desc,");
		}
		else
		{
			flag = 0;
			SetBind("P_Name asc,");
		}
		return flag;
    }

.aspx

function sufun()
{
	alert(admin_admin_News.News_Orders().value);
	alert("222");
	}

执行后弹出null然后又弹出222
怎么办？

[xuexiaodong2009]

ajax返回值是这么使用的？应该使用函数吧
alert(admin_admin_News.News_Orders().value);