#眉標=MVC、ASP.NET、LINQ
#副標=ASP.NET網站開發與應用
#大標=MVC Framework在ASP.NET開發上的實作
#作者=文／圖 王寧疆



===<反灰>=============
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> 
<h2>加入說明</h2> 
  <p><%=Html.ValidationSummary()%></p> 
  <% using (Html.BeginForm("UserComment","UserComment", FormMethod.Post)) { %> 
  <table border="0" cellpadding="2" cellspacing="0"> 
   <tr> 
    <td>加入說明:</td> 
    <td> 
     <%=Html.TextBox("name", ViewData["name"] ?? "")%> 
     <%=Html.ValidationMessage("name")%> 
    </td> 
   </tr> 
  <tr> 
    <td>電子郵件:</td> 
    <td> 
     <%=Html.TextBox("email", ViewData["email"] ?? "")%> 
     <%=Html.ValidationMessage("email")%> 
     </td> 
  </tr> 
  <tr> 
    <td>說明:</td> 
    <td> 
     <%=Html.TextArea("Comment", ViewData["Comment"] ?? "")%> 
     <%=Html.ValidationMessage("Comment")%> 
    </td> 
   </tr>
   <tr>
    <td colspan="2" align="right"> 
      <input type="submit" value="填完送出" /> 
    </td> 
   </tr>  
  </table> 
 <% } %> 
</asp:Content>
==<box>===========








===<反灰>=============
[HandleError] 
public class UserCommentController : Controller 
{ 
  [AcceptVerbs("GET")] 
  public ActionResult UserComment() //名為UserComment的Action
  { 
   return View(); 
  } 
   [AcceptVerbs("POST")] 
  public ActionResult UserComment(string name, string email, 
  string comment) //接受3個字串參數，名稱為UserComment的Action
  { 
   ViewData["name"] = name;	//填入ViewData集合
   ViewData["email"] = email; //填入ViewData集合
   ViewData["message"] = comment; //填入ViewData集合
   if (string.IsNullOrEmpty(name)) //如果未輸入姓名
    ModelState.AddModelError("name", "請輸入你的姓名!");//錯誤訊息到ModelState
   if (!string.IsNullOrEmpty(email) || 
     !email.Contains("@"))	//如果郵件格式錯誤
    ModelState.AddModelError("email", "請輸入正確的電子郵件!");//錯誤訊息到ModelState
   if (string.IsNullOrEmpty(comment)) //如果未輸入說明
    ModelState.AddModelError("comment", "請輸入說明!");	//錯誤訊息到ModelState
   if (ViewData.ModelState.IsValid)	//如果資料通過驗証
   {
  }
   return View();
 } 
}
==<end>==============





===<反灰>=============
routes.MapRoute(
  "UserComment", //Route名
  "{controller}/{action}/{id}", //URL參數格式
  new { controller = "UserComment", action = "UserComment", id = "" } //預設參數值
);
==<end>==============





===<反灰>=============
<li><%= Html.ActionLink("加入說明", "UserComment", "UserComment")%></li>
==<end>==============





===<反灰>=============
<ul id="menu">
  <li><%= Html.ActionLink("Home", "Index", "Home")%></li>
  <li><%= Html.ActionLink("加入說明", "UserComment", "UserComment")%></li>
  <li><%= Html.ActionLink("About", "About", "Home")%></li>
</ul>
==<end>==============





===<反灰>=============
using System.ComponentModel;
namespace MvcValidation.Models
{
  public partial class Region:IDataErrorInfo //令類別實作IDataErrorInfo介面
　{
　 private Dictionary<string,string> _errors = new Dictionary<string,string>(); //建立存放錯誤訊息的集合
     
   partial void OnRegionDescriptionChanging(string value) //處理RegionDescription欄位內容變更的方法
   {
    if (string.IsNullOrEmpty(value)) //判斷RegionDescription欄位內容是否沒有值
     _errors.Add("RegionDescription", 
    "RegionDescription未輸入");	 //將錯誤訊息填入到名稱為_errors的集合
   }
        
  #region IDataErrorInfo 成員
 public string Error //Error屬性
  {
   get { return string.Empty; } //傳回空字串
  }
 public string this[string columnName] //利用欄位名稱取得錯誤訊息的indexer
  {
   get
   {
    if (_errors.ContainsKey(columnName)) //判斷指定的欄位是否有對應的錯誤訊息
     return _errors[columnName]; //取回指定欄位的錯誤訊息
     return string.Empty; //傳回空字串
    }
   }
  #endregion
 }
}
==<end>==============





===<反灰>=============
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
  <h2>輸入Region資料</h2> 
  <p><%=Html.ValidationSummary()%></p> 
  <% using (Html.BeginForm("InputRegion","Region", FormMethod.Post)) { %> 
  <table border="0" cellpadding="2" cellspacing="0"> 
   <tr> 
    <td>RegionID:</td> 
    <td> 
     <%=Html.TextBox("RegionID", ViewData["RegionID"] ?? "")%> 
     <%=Html.ValidationMessage("RegionID")%> 
    </td> 
   </tr> 
  <tr> 
    <td>RegionDescription:</td> 
    <td> 
     <%=Html.TextBox("RegionDescription", ViewData["RegionDescription"] ?? "")%> 
      <%=Html.ValidationMessage("RegionDescription")%> 
    </td> 
   </tr> 
   <tr> 
    <td colspan="2" align="right"> 
     <input type="submit" value="填完送出" /> 
    </td> 
   </tr> 
  </table> 
 <% } %> 
</asp:Content>
==<end>==============





===<反灰>=============
public class RegionController : Controller
{
  [AcceptVerbs("GET")]
  public ActionResult InputRegion() //名為InputRegion的Action
  {
   return View();
  }
  [AcceptVerbs("POST")]
  public ActionResult InputRegion(
  [Bind(Exclude = "RegionID")] Region r) //接受Region型態的參數，名為InputRegion的Action
  {
   if (!ModelState.IsValid) //判斷輸入是否有錯
    return View(); //不顯示任何內容
     try
    {
//視需要執行寫入資料到資料庫的動作
      return RedirectToAction("InputRegion"); //控制權轉交給InputRegion的Action
    }
   catch  //如果發生任何錯誤
   {
   return View(); //不顯示任何任內容
   }
  }
}
==<end>==============





===<反灰>=============
routes.MapRoute(
  "Region", // Route name
  "{controller}/{action}/{id}", //URL with parameters
  new { controller = "Region", action = "InputRegion", id = "" } //Parameter defaults
);
==<end>==============




===<反灰>=============
<li><%= Html.ActionLink("新增Region資料", "InputRegion", "Region")%></li>
==<end>==============