AjaxPro使用摘要

使用AjaxPro可轻松实现Ajax功能。

不过，须谨记四步区：

1、在web.config中配置，位于<system.web>下

<httpHandlers>
      <!--AJAXPRO-->
      <add verb="POST,GET" path="ajaxpro/*.ashx" type="AjaxPro.AjaxHandlerFactory, AjaxPro.2" />
</httpHandlers>

2、在页面后台加上特性标记，以ShowNews.aspx为例

[AjaxPro.AjaxNamespace("ColeNews")]
public partial class _ShowNews : System.Web.UI.Page

3、注册本页为AJAX页面

protected void Page_Load(object sender, EventArgs e)
{
      //注册本页为AJAX
       AjaxPro.Utility.RegisterTypeForAjax(typeof(_ShowNews));

}

4、为方法标记特性

[AjaxPro.AjaxMethod]
    /// <summary>
    /// 获得评论列表
    /// </summary>
    /// <param name="pageIndex">当前页码数</param>
    /// <returns></returns>
    public List<Comment> Getcomments(int pageIndex)
    {
        /****** 处理分页 **********/
        PageManager pager = PageManager.GetDefaultPager();
        //显示留言条数
        pager.PageSize = 10;
        int startRecordIndex = (pageIndex - 1) * pager.PageSize + 1;
        int recordCount = 0;
        List<Comment> comments = CommentManager.GetComments(startRecordIndex, pager.PageSize, out recordCount, _newsId);

        pager.RecordCount = recordCount;
        pager.CurrentPageIndex = pageIndex;
        //加载分页信息
        _pagerInfo = pager.GetNavagateInfo("javascript:LoadComment(");
        /********** 处理分页完毕 ************/

        return comments;
    }

5、前台页面须有一个服务器端表单，这点我倒常忘。

<form id="Frm" runat="server"></form>

6、调用，js可直接操作DataSet、DataTable、IList等数据，这里结合jQuery。

var comments = ColeNews.Getcomments(pageIndex).value; 
    //commentsCount = comments.length;   
    //alert(comments.length);
    //操作List<Comment>
    $("#tbComments").empty();
    jQuery.each(comments, function(n, comment){        
        var style = (n % 2 == 0) ? "class='CommentItem'" : "";
        var info = "<tr " + style +">";    
        info += "<td style=' 500px;' class='top'><span class='commenterName'>#" + ((pageIndex - 1) * 10 + n + 1) + "&nbsp;" + comment.Sender + "</span> 说/said：</td>";
        info += "<td class='top'><span class='commentTime'>" + comment.SendTime + "</span></td>";
        info += "</tr><tr " + style +  ">";
        info += "<td colspan='2'>" + comment.Content + "</td></tr>";
        jQuery(info).appendTo($("#tbComments"));      
    });  

//操作List<Duty>
 jQuery.each(duties, function(n){            
      jQuery("<option value='" + duties[n].DutyId + "'>" + duties[n].DutyName + "</option>").appendTo(selDuties);
});

//操作DataTable
var len = employees.Rows.length;
for(var n= 0;n < len; n++)
{
      jQuery("<option value='" + employees.Rows[n].EmployeeId + "'>" + employees.Rows[n].EmployeeName + "</option>").appendTo(selEmployees);
}