ASP.NET MVC3 异步刷新

2011-08-13 09:51:53

标签：MVC3 异步刷新 休闲 N Layer 职场
原创作品，允许转载，转载时请务必以超链接形式标明文章 原始出处 、作者信息和本声明。否则将追究法律责任。http://leelei.blog.51cto.com/856755/638408
好久没写博客了，今天就讲讲如何在ASP.NET MVC3中实现异步刷新。本次实例前台采用的是Razor引擎。首先看看系统结构,如图
本系统采用N Layer开发。我们以其中的某个具体模块作为案例来讲述。
@model TeacherPlatForm.Utility.PagedList<TeacherPlatForm.Domain.Entities.Generate.TASE_Thesis_Titles> 
<!DOCTYPE html> 
<html> 
<head> 
        <title>论文题目发布</title> 
        <link rel="Stylesheet" type="text/css" href="http://www.cnblogs.com/Content/Site.css" /> 
        <script type="text/javascript" src="http://www.cnblogs.com/Scripts/jquery-1.4.4.js"></script> 
        <script type="text/javascript" src="http://www.cnblogs.com/Scripts/jquery.unobtrusive-ajax.min.js"></script> 
        <link rel="Stylesheet" type="text/css" href="http://www.cnblogs.com/Scripts/jquery.autocomplete.css" /> 
        <script type="text/javascript" src="http://www.cnblogs.com/Scripts/jquery.autocomplete.js"></script> 
        <script type="text/javascript" src="http://www.cnblogs.com/Scripts/common.js"></script> 
        <script type="text/javascript" src="http://www.cnblogs.com/Scripts/teacherplat/thesistitlepublish.js"></script> 
</head> 
<body> 
        <div align="center"> 
                <div align="left" style="width: 96%; margin-top: 20px"> 
                        当前位置:论文题目发布 
                        <br /> 
                        <hr align="left" noshade="noshade" size="0.1" color="#b70005" /> 
                </div> 
                <input type="hidden" id="hfd_professional" value="@ViewBag.professional" /> 
                <input type="hidden" id="hfd_educationLevel" value="@ViewBag.educationId" /> 
                <input type="hidden" id="hfd_write_batchid" name="hfd_write_batchid" value="@ViewBag.writeBatchid" /> 
                @using (Ajax.BeginForm("ThesisOperation", "ThesisTitlePublish", new AjaxOptions { OnSuccess = "opersuccess()" })) 
                { 
                        Html.RenderPartial("~/Views/TeacherPlatForm/ThesisTitlePartial.cshtml"); 
                        <input type="hidden" id="hfd_sign" name="hfd_sign" /> 
                        <div> 
                                <input type="button" id="btnAdd" name="btnAdd" value="增加" class="btn" style="width: 60px" 
                                         />  
                                <input type="button" id="btnRemove" name="btnRemove" value="删除" class="btn" style="width: 60px" 
                                         />  
                                <input type="button" id="btnPublish" name="btnPublish" value="发布" class="btn" style="width: 60px" 
                                         /> 
                        </div> 
                } 
        </div> 
</body> 
</html>
在本页面我引用了一个partial页面代码如下
@model TeacherPlatForm.Utility.PagedList<TeacherPlatForm.Domain.Entities.Generate.TASE_Thesis_Titles> 
<div id="thesisTitle_tab"> 
        @Html.Hidden("thesisTitleIds", (Model != null ? string.Join("_", Model.DataList.Select(tt => tt.thesis_title_id)) : string.Empty)) 
        <table class="mytable" style="margin-top: 15px"> 
                <tr> 
                        <th> 
                                <center> 
                                        @Html.CheckBox("chk_all", new { id = "chkall", onclick = "checkall()" }) 
                                </center> 
                        </th> 
                        <th> 
                                <center> 
                                        题目</center> 
                        </th> 
                        <th> 
                                <center> 
                                        写作批次</center> 
                        </th> 
                        <th> 
                                <center> 
                                        专业名称</center> 
                        </th> 
                        <th> 
                                <center> 
                                        方向 
                                </center> 
                        </th> 
                        <th> 
                                <center> 
                                        发布状态</center> 
                        </th> 
                        <th> 
                                <center> 
                                        操作 
                                </center> 
                        </th> 
                </tr> 
                @if (Model != null && Model.DataList.Count > 0) 
                { 
                        foreach (var thesisTitle in Model.DataList) 
                        { 
                        <tr onclick="setCheck('@thesisTitle.thesis_title_id')"> 
                                <td align="center"> 
                                        @Html.CheckBox("chk_" + thesisTitle.thesis_title_id, new { id = "chk_" + thesisTitle.thesis_title_id, onclick = "setCheck('" + thesisTitle.thesis_title_id + "')" }) 
                                </td> 
                                <td> 
                                        @thesisTitle.title 
                                </td> 
                                <td> 
                                        @(thesisTitle.TASE_Write_Batch != null ? thesisTitle.TASE_Write_Batch.write_batch_name : string.Empty) 
                                </td> 
                                <td> 
                                        @(thesisTitle.TASE_Thesis_Direction != null ? (thesisTitle.TASE_Thesis_Direction.TASE_Professional != null ? thesisTitle.TASE_Thesis_Direction.TASE_Professional.name : string.Empty) : string.Empty) 
                                </td> 
                                <td> 
                                        @(thesisTitle.TASE_Thesis_Direction != null ? thesisTitle.TASE_Thesis_Direction.direct_name : string.Empty) 
                                </td> 
                                <td> 
                                        @(thesisTitle.state == "1" ? "已发布" : "未发布") 
                                </td> 
                                <td align="center"> 
                                        <input type="button" id="btnModify" name="btnModify" class="btn" value="修改" style="width:60px" onclick="showModifyModal('@thesisTitle.thesis_title_id')" /> 
                                </td> 
                        </tr> } 
                } 
        </table> 
        <div class="divpager"> 
                共有 <font color="red">@(Model != null ? Model.TotalCount : 0)</font> 条记录 当前是第 <font color="red">@(Model != null ? Model.PageIndex : 0)</font> 
                页 共<font color="red">@(Model != null ? Model.TotalPages : 0)</font>页     
                @if (Model!=null&&Model.HasPreviousPage) 
                { 
                        @Ajax.ActionLink("首页", "Index", "ThesisTitlePublish", new { id = 1 + "_" + 10 + "_" + DateTime.Now.Ticks }, new AjaxOptions { UpdateTargetId = "thesisTitle_tab" })<label> </label> 
                        @Ajax.ActionLink("上一页", "Index", "ThesisTitlePublish", new { id = (Model.PageIndex - 1) + "_" + 10 + "_" + DateTime.Now.Ticks }, new AjaxOptions { UpdateTargetId = "thesisTitle_tab" })<label> </label>    
                } 
                else 
                { 
                        <a>首页 </a>    
                        <a>上一页 </a> 
                } 
                @if (Model != null && Model.HasNextPage) 
                { 
                        @Ajax.ActionLink("下一页", "Index", "ThesisTitlePublish", new { id = (Model.PageIndex + 1) + "_" + 10 + "_" + DateTime.Now.Ticks }, new AjaxOptions { UpdateTargetId = "thesisTitle_tab" })<label> </label> 
                        @Ajax.ActionLink("末页", "Index", "ThesisTitlePublish", new { id = Model.TotalPages + "_" + 10 + "_" + DateTime.Now.Ticks }, new AjaxOptions { UpdateTargetId = "thesisTitle_tab" }) 
                } 
                else 
                { 
                        <a>下一页 </a>    
                        <a>末页 </a> 
                } 
        </div> 
</div>
现在我对分页采用了异步刷新,后台代码如下
 public ActionResult Index(string id) 
                { 
                        try 
                        { 
                                int pageSize = 10, pageIndex = 1; 
                                if (!string.IsNullOrEmpty(id)) 
                                { 
                                        pageIndex = int.Parse(id.Split('_')[0]); 
                                        pageSize = int.Parse(id.Split('_')[1]); 
                                } 
                                 
                                TASE_Write_Batch writeBatch = thesisTitlePublishService.GetWriteBatch(); 
                                PagedList<TASE_Thesis_Titles> thesisTitleList = thesisTitlePublishService.GetThesisTitleList((string)Session["userid"], writeBatch.write_batch_id, pageIndex, pageSize); 
                                if (Request.IsAjaxRequest()) 
                                { 
                                        return PartialView("~/Views/TeacherPlatForm/ThesisTitlePartial.cshtml", thesisTitleList); 
                                } 
                                return View("~/Views/TeacherPlatForm/ThesisTitlePublish.cshtml", thesisTitleList); 
                        } 
                        catch (Exception ex) 
                        { 
                                if (ex.GetType() == typeof(MyException)) 
                                { 
                                        ViewBag.errorMessage = ((MyException)(ex)).Message; 
                                        return View("~/Views/TeacherPlatForm/ErrorMessage.cshtml"); 
                                } 
                                else 
                                { 
                                        return View("~/Views/TeacherPlatForm/ThesisTitlePublish.cshtml", null); 
                                } 
                        } 
                }
在后台控制器判断如果是AJAX请求，返回一个Partial页面。去替换<div id="thesisTitle_tab">中的内容。怎么替换呢，看看partial页中的分页代码，@Ajax.ActionLink("首页", "Index", "ThesisTitlePublish", new { id = 1 + "_" + 10 + "_" + DateTime.Now.Ticks }, new AjaxOptions { UpdateTargetId = "thesisTitle_tab" })看见AjaxOptions有一个UpdateTargetId属性，这就是我们分页后要刷新的html标签的id。
对于增加删除我们也可以采用类似的方式，不过UpdateTargetId 要写在@using (Ajax.BeginForm("ThesisOperation", "ThesisTitlePublish", new AjaxOptions { OnSuccess = "opersuccess()" }))   中。这里我们采用了整页刷新
public JavaScriptResult RemoveThesisTitle(FormCollection fc) 
                { 
                        try 
                        { 
                                string thesisTitleId = fc["thesisTitleIds"]; 
                                if (thesisTitleId.Length == 0) 
                                { 
                                        return JavaScript("alert('请选择要删除的题目!')"); 
                                } 
                                string[] thesisTitleIds = thesisTitleId.Split(new char[] { '_' }, StringSplitOptions.RemoveEmptyEntries); 
                                foreach (var thesisTitleid in thesisTitleIds) 
                                { 
                                        string isChecked = fc["chk_" + thesisTitleid].Split(',')[0]; 
                                        if (isChecked.Equals("true")) 
                                        { 
                                                TASE_Thesis_Titles thesisTitles = thesisTitlePublishService.GetThesisTitles(thesisTitleid); 
                                                if (thesisTitles.state == "1") 
                                                { 
                                                        return JavaScript("alert('已发布的论文题目不能删除!')"); 
                                                } 
                                                thesisTitlePublishService.RemoveThesisTitle(thesisTitles); 
                                        } 
                                } 
                                thesisTitlePublishService.Commit(); 
                                return JavaScript("alert('删除成功!');window.location.href=window.location.href;"); 
                        } 
                        catch 
                        { 
                                return JavaScript("alert('删除失败!')"); 
                        } 
                }

本文出自 “微软技术” 博客，请务必保留此出处http://leelei.blog.51cto.com/856755/638408

转载于:https://www.cnblogs.com/ppcompany/articles/2674634.html

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