Coolite Cool Study 3 MVC + Coolite 的实现代码

因为默认的 MVC 的样式文件里对于的 table 和 其他相关样式（h1～h6） 与Coolite有冲突，会导致GridPanel走样，大家记得先把那个table 和  h1～h6的样式清除掉才看到GridPanel的帅脸面 …

项目文件分布：

关于Coolite在MVC中的配置文件跟一般webform是一样的。 但在MVC的Global.asax中，需要在 RegisterRoutes 方法里加上这一句：

routes.IgnoreRoute("{exclude}/{coolite}/coolite.axd");

另外 ScriptManager 要注明 IDMode="Static“：

<ext:ScriptManager ID="ScriptManager1" runat="server"  IDMode="Static"/>

其中唯一与一般MVC不同的是，我们需要定义自己的ActionResult来返回Json结果给客户端。因为Coolite 的JsonReader 要求的格式大致都是这样：{data: [{…}], totalCount: …}

关于JsonReader的一般用法：

<ext:JsonReader ReaderID="CustomerID" Root="data" TotalProperty="totalCount"> 

所以， 要继承MVC ActionResult 的抽象方法 public override void ExecuteResult(ControllerContext context)  来返回给 JsonReader   合适口味的 JsonResult , 不然它就不认人了。

以下代码实现了对Json Response & Save Response 的简单封装。

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using Coolite.Ext.Web;namespace CooliteMVC.Helper{   public class AjaxStoreResult : ActionResult  {    public AjaxStoreResult() { }    public AjaxStoreResult(object data)    {      this.Data = data;    }    public AjaxStoreResult(object data, int totalCount)      : this(data)    {      this.TotalCount = totalCount;    }    public AjaxStoreResult(StoreResponseFormat responseFormat)    {      this.ResponseFormat = responseFormat;    }    private object data;    public object Data    {      get { return this.data; }      set { this.data = value; }    }    private int totalCount;    public int TotalCount    {      get { return this.totalCount; }      set { this.totalCount = value; }    }    private StoreResponseFormat responseFormat = StoreResponseFormat.Load;    public StoreResponseFormat ResponseFormat    {      get { return this.responseFormat; }      set { this.responseFormat = value; }    }    private SaveStoreResponse saveResponse;    public SaveStoreResponse SaveResponse    {      get      {        if (this.saveResponse == null)        {          this.saveResponse = new SaveStoreResponse();        }        return this.saveResponse;      }    }    public override void ExecuteResult(ControllerContext context)    {      switch (this.ResponseFormat)      {        case StoreResponseFormat.Load:          string json = Coolite.Ext.Web.JSON.Serialize(Data);          json = "{data:" + json + ", totalCount:" + 100 + "}";          context.HttpContext.Response.Write(json);                     break;        case StoreResponseFormat.Save:          Response response = new Response(true);          response.Success = this.SaveResponse.Success;          response.Msg = this.SaveResponse.ErrorMessage;          StoreResponseData saveResponse = new StoreResponseData();          saveResponse.Confirmation = this.SaveResponse.ConfirmationList;          response.Data = saveResponse.ToString();          response.Write();          break;        default:          throw new ArgumentOutOfRangeException();      }    }   }  public enum StoreResponseFormat  {    Load,    Save  }  public class SaveStoreResponse  {    private bool success = true;    private string errorMessage;    public bool Success    {      get { return this.success; }      set { this.success = value; }    }    public string ErrorMessage    {      get { return this.errorMessage; }      set { this.errorMessage = value; }    }    public ConfirmationList ConfirmationList { get; set; }  }}

AjaxStoreResult 在 CustomerController 中的使用：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using System.Web.Mvc.Ajax;using CooliteMVC.Models;using CooliteMVC.Helper;using Coolite.Ext.Web;namespace CooliteMVC.Controllers{  public class CustomerController : Controller  {    //    // GET: /Customer/    public ActionResult Index()    {      ViewData["Title"] = "Customer List";      ViewData["Message"] = "Welcome to Coolite MVC! My name is Bruce.";      return View();    }    public ActionResult List(int limit, int start, string dir, string sort)    {      Random rand = new Random();      IList<Customer> list = new List<Customer>();      for (int i = start; i < start + limit; i++)        list.Add(new Customer        {          CustomerID = "Customer" + i,          Address = "Address" + i,          City = "City" + rand.Next(1000),          CompanyName = "Com" + rand.Next(1000),          ContactName = "Contract" + rand.Next(1000),          ContactTitle = "Title" + rand.Next(1000),          Country = "Country" + rand.Next(1000),          Email = rand.Next(1000) + "@live.com",          Fax = rand.Next(1000).ToString() + rand.Next(1000),          Mobile = rand.Next(1000).ToString() + rand.Next(1000),          Notes = "Notes" + rand.Next(1000),          Phone = "Phone" + rand.Next(1000),          Region = "Region" + rand.Next(1000),          TranDate = DateTime.Now.AddDays(rand.Next(30))        });      return new AjaxStoreResult(list, 100);    }    public ActionResult Save()    {      AjaxStoreResult ajaxStoreResult = new AjaxStoreResult(StoreResponseFormat.Save);      try      {        StoreDataHandler dataHandler = new StoreDataHandler(Request["data"]);        ChangeRecords<Customer> data = dataHandler.ObjectData<Customer>();        foreach (Customer customer in data.Deleted)        {          //db.Customers.Attach(customer);          //db.Customers.DeleteOnSubmit(customer);        }        foreach (Customer customer in data.Updated)        {          //db.Customers.Attach(customer);          //db.Refresh(RefreshMode.KeepCurrentValues, customer);        }        foreach (Customer customer in data.Created)        {          //db.Customers.InsertOnSubmit(customer);        }      }      catch (Exception e)      {        ajaxStoreResult.SaveResponse.Success = false;        ajaxStoreResult.SaveResponse.ErrorMessage = e.Message;      }      return ajaxStoreResult;    }   }}

页面的关键代码：

   <ext:Store ID="dsCustomers" runat="server" >    <Proxy>      <ext:HttpProxy Url="/Customer/List" Method ="GET" />    </Proxy>    <UpdateProxy>       <ext:HttpWriteProxy Url="/Customer/Save" />    </UpdateProxy>    <Reader>      <ext:JsonReader ReaderID="CustomerID" Root="data" TotalProperty="totalCount">        <Fields>          <ext:RecordField Name="CustomerID" SortDir="ASC" />          <ext:RecordField Name="CompanyName" />          <ext:RecordField Name="ContactName" />          <ext:RecordField Name="Email" />          <ext:RecordField Name="Phone" />          <ext:RecordField Name="Fax" />          <ext:RecordField Name="Region" />          <ext:RecordField Name="TranDate" Type="Date" />        </Fields>      </ext:JsonReader>    </Reader>    <BaseParams>      <ext:Parameter Name="limit" Value="15" Mode="Raw" />      <ext:Parameter Name="start" Value="0" Mode="Raw" />      <ext:Parameter Name="dir" Value="ASC" />      <ext:Parameter Name="sort" Value="CustomerID" />    </BaseParams>    <SortInfo Field="CustomerID" Direction="ASC" />  </ext:Store>

我们可以看到其实就是Url的写法不同而已：

 <ext:HttpProxy Url="/Customer/List" Method ="GET" />

 <ext:HttpWriteProxy Url="/Customer/Save" /> 

详细页面代码跟第一章差不多，这里不列出来。