博客园_Sum_yang

fck问题

2011-05-30T08:53:00Z

FCK上传图片问题解决

错误1：The server didn't reply with a proper XML data. Please check your configuration

解决方案：

asp.net下的fckedito配置

用最简单的语言描述一下。其它配置和优化就不说了，只说怎么让它在asp.net环境下能用，能上传。

1、下载文件 http://www.fckeditor.net/download

这是目前最新的版本。 FCKeditor_2.6.5.zip 为fckeditor的页面文件 FCKeditor.Net_2.6.zip 是asp.net下的上传用的 dll控件和其源文件

2、解压FCKeditor_2.6.5.zip 到网站根目录下的 fckeditor中，解压FCKeditor.Net_2.6.zip 将其目录 FCKeditor.Net_2.6\bin\Release中的 FredCK.FCKeditorV2.dll 复制到根目录的/bin/下

3、打开/fckeditor/fckconfig.js 修改两行代码

var _FileBrowserLanguage = 'aspx' ;

var _QuickUploadLanguage = 'aspx' ;

把默认的asp语言改成aspx

错误2 ：FCKeditor出现"this connector is disabled Please check the"editor/filemanager/connectors/aspx/config.aspx"错误的解决办法

解决办法：

打开editor/filemanager/connectors/aspx/config.ascx修改CheckAuthentication()方法，返回true

C# code

private bool CheckAuthentication()
{
// WARNING : DO NOT simply return "true". By doing so, you are allowing
// "anyone" to upload and list the files in your server. You must implement
// some kind of session validation here. Even something very simple as...
//
// return ( Session[ "IsAuthorized" ] != null && (bool)Session[ "IsAuthorized" ] == true );
//
// ... where Session[ "IsAuthorized" ] is set to "true" as soon as the
// user logs in your system.

return true;
}

随便看了一下config.ascx里的内容，发现如果想让对每个用户进行不同的配置，FCKeditor支持的更好了。

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Nhibernate的一个问题

2011-04-18T01:10:00Z

此 SqlParameterCollection 的 Count=8 的索引 8 无效。

出现了这个问题，找了很久弄好，后来别人提供了一个链接

http://codeverity.com/timweaver/nhibernate-invalid-index-for-this-sqlparametercollection/

Here's my mapping file: [I swear I'm switching to attributes first chance I get, but I learned the Xml mapping and time doesn't permit the change at this point]

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
    schema="TestDB.dbo"
    namespace="Domain.Foo"
    >
<class name="Domain.Foo.ProfileP, Domain" table="ProfileP" lazy="false" >
    <id name="ID" column="ID" type="Int32" unsaved-value="0">
      <generator />
    </id>
    <property name="ProfileId" column="profileId" type="Int32" />
    <property name="PaymentId" column="paymentId"   type="Int32" insert="false" update="false" />
    <property name="Status" column="status"    type="string" length="10" />
    <many-to-one name="PaymentS" column="paymentId" cascade="save-update" not-null="true" />
</class>
</hibernate-mapping>

The problem is the line in red. The PaymentID is the ID value of the PaymentS class in the Domain.Foo.Sub namespace. So, NHibernate already knew the ID value and was using it in the update/save queries. In effect it was declared twice in the mapping file: once explicitly and once implicitly via the many-to-one relationship. The fix was to add insert="false" and update="false" to the paymentId property.

I ended up purchasing the NHibernate in Action book via the early access program. So far I am pleased with the purchase. The book has shed light on a lot of pieces of information that were unclear to me. Getting concise and complete information on NHibernate seems to be a lot harder than I would have thought.

本文链接

asp.net 点滴事项

2011-04-13T14:58:00Z

1、要进行跳转链接

@Html.ActionLink("Edit", "Edit", new { id=item.ID })

return RedirectToAction("Index");

2、可通过以下方式进行数据实体的验证

if (ModelState.IsValid)

3、如何给默认值

public ActionResult ssss(int id=0)

4、以下代码实现的是在clr中进行mapping的时候，找delete就找到deleteconfirmed

[HttpPost, ActionName("Delete")]

public ActionResult DeleteConfirmed(int id =0)

5、验证实例如下

[Required(ErrorMessage = "Title is required")]

    public string Title { get; set; }

    [Required(ErrorMessage = "Date is required")]
    public DateTime ReleaseDate { get; set; }

    [Required(ErrorMessage = "Genre must be specified")]
    public string Genre { get; set; }

    [Required(ErrorMessage = "Price Required")]
    [Range(1, 100, ErrorMessage = "Price must be between $1 and $100")]
    public decimal Price { get; set; }

    [StringLength(5)]
    public string Rating { get; set; }}

[DataType(DataType.Date)] 
        public DateTime ReleaseDate { get; set; }
       
        [DataType(DataType.Currency)]  public decimal Price { get; set; }

[DisplayFormat(DataFormatString = "{0:d}")]

       public DateTime ReleaseDate { get; set; }

//*********************************************************************//

ASP.NET MVC Tip #46 — Don't use Delete Links because they create Security Holes.

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asp.net mvc 验证

2011-04-09T21:59:00Z

1、使用tryUpdatemodel 的方式

2、在model中加入类似以下代码

[DisplayName("First Name"), StringLength(50)]

   public string FirstName { get; set; }
   [DisplayName("Middle Name"), StringLength(50)]
   public string MiddleName { get; set; }
   [DisplayName("Last Name"), StringLength(50), Required]
   public string LastName { get; set; }
   [DisplayName("Birth Date"), DataType(DataType.Date)]
   public DateTime BirthDate { get; set; }
   [DataType(DataType.EmailAddress), Required]
   public string Email { get; set; }
   public string Phone { get; set; }
   public string Postcode { get; set; }
   [DataType(DataType.MultilineText)]

public string Notes { get; set; }

3、客户端验证

需要在模板里面加入：<% Html.EnableClientValidation(); %>

本文链接

asp.net mvc---session cache (10)

2011-04-08T21:47:00Z

1、记录用户访问人数

首先定义一个用户访问类型

public enum VisitorTypes {
UnknownVisitor = 0,
KnownVisitor = 1
}

然后建立一个类

public class SiteVisitors {
  private static SiteVisitors instance = new SiteVisitors();
  private SiteVisitors() { }
  public int UnknownVisitorCount { get; private set; }
  public int KnownVisitorCount { get; private set; }
  public static SiteVisitors Instance {
    get {
          return instance;
        }
  }

//user arrives

  public void UnknownVisitorArrived() {
     SessionWrapper.SetUnknownType();
     UnknownVisitorCount++;
  }
  //known user arrives
  public void KnownVisitorArrives() {
     SessionWrapper.SetKnownType();
     KnownVisitorCount++;
  }
  //user logs in
  public void UnknownVisitorLoggedOn() {
     SessionWrapper.SetKnownType();
     UnknownVisitorCount--;
     KnownVisitorCount++;
  }
  //user logs out
  public void KnownVisitorLoggedOut() {
     SessionWrapper.SetUnknownType();
     UnknownVisitorCount++;
     KnownVisitorCount--;
  }
  //user session expires
  public void VisitorLeft() {
    if (SessionWrapper.GetType() ==
       VisitorTypes.KnownVisitor)
       KnownVisitorLeft();
    else
      UnknownVisitorLeft();
  }

}

建立一个静态类

public static class SessionWrapper {
  private const string c_visitorType = "VisitorType";
  public static void SetUnknownType() {
    HttpContext.Current.Session.Add(c_visitorType,
      VisitorTypes.UnknownVisitor);
  }
  public static void SetKnownType() {
    HttpContext.Current.Session.Add(c_visitorType,
       VisitorTypes.KnownVisitor);
  }
  public static new VisitorTypes GetType() {
    VisitorTypes result = VisitorTypes.UnknownVisitor;
    if (HttpContext.Current.Session[c_visitorType] != null)
      result = (VisitorTypes)HttpContext.Current.Session
        [c_visitorType];
    return result;
  }}

使用：

protected void Session_Start() {

  if(Request.IsAuthenticated)
     SiteVisitors.Instance.KnownVisitorArrives();
  else
     SiteVisitors.Instance.UnknownVisitorArrived();
}
protected void Session_End() {
     SiteVisitors.Instance.VisitorLeft();
}

前台调用

  <% Html.RenderPartial("LogOnUserControl"); %><br />
  Known visitor count: <%:
    StateExamples.Models.SiteVisitors.Instance
      .KnownVisitorCount %> - Unknown visitor count:
    <%:
    StateExamples.Models.SiteVisitors.Instance.UnknownVisitorCount
     %>
</div>

2、使用sessionwap记录访问信息

public static class SessionWrapper {

  private const string c_account = "Account";
  public static Account Account {
    get { return GetObjectFromSession(c_account) as Account; }
    set {
      if (value == null)
         ClearItemFromSession(c_account);
      else
         SetItemInSession(value, c_account);
    }
  }
  private static string GetStringFromSession(string key) {
     return GetObjectFromSession(key).ToString();
  }
  private static int GetIntFromSession(string key) {
     return (int)GetObjectFromSession(key);
  }
  private static object GetObjectFromSession(string key) {
    return HttpContext.Current.Session[key];
  }

private static void SetItemInSession(object item, string key) {

HttpContext.Current.Session.Add(key, item);

}

private static void ClearItemFromSession(string key) {

HttpContext.Current.Session.Remove(key);

}

在登录上使用

SessionWrapper.Account = new AccountService() .GetAccountByUsername(userName);

在前台使用：

</div>

3、使用cache

public class CacheWrapper

public class CacheWrapper {
  private List<object> GetCacheItems(string[] keys) {
   IDictionaryEnumerator theCache =
      HttpContext.Current.Cache.GetEnumerator();
   List<object> results = new List<object>();
   while (theCache.MoveNext()) {
     if (keys.Contains(theCache.Key))
        results.Add(theCache.Value);
   }
    return results;
  }

private object GetCachItem(string key) {

if (HttpContext.Current.Cache[key] != null)
      return HttpContext.Current.Cache[key];
    return null;
  }
  private void AddCacheItems(Dictionary<string, object> items) {
    foreach (KeyValuePair<string, object> item in items) {
       AddCacheItem(item.Key, item.Value);
    }
  }
  private void AddCacheItem(string key, object item) {
   HttpContext.Current.Cache.Add(key, item, null, //dependencies
      DateTime.MaxValue, //absolute expiration
      new TimeSpan(0, 1, 0, 0), //sliding expiration
      CacheItemPriority.Default, //priority
      null); //callback
  }

public void PutProducts(List<Product> products) {

Dictionary<string, object> itemsToCache = new

Dictionary<string, object>();

foreach (Product product in products) {

itemsToCache.Add(product.Name, product);

}

AddCacheItems(itemsToCache);

}

public List<Product> GetProducts(string[] productNames) {

List<Product> results = new List<Product>();

List<object> cacheItems = GetCacheItems(productNames);

foreach (object cacheItem in cacheItems) {

results.Add(cacheItem as Product);

}

return results.OrderBy(p => p.Name).ToList();

}

把产品预装

private void PreLoadProductCatalog() {

List<Product> products = new ProductService().GetProducts();
new CacheWrapper().PutProducts(products);

}

然后如何获取

List<Product> products = new CacheWrapper().GetProducts(new[] {
"Name1", "Name5", "Name98", "Name39", "Name88", "Name34"
});

return View(products);

4、使用页面缓存

在action 上加

[OutputCache(Duration = (60 * 60), VaryByParam = "none")]

5、

本文链接

asp.net MVC （7）----- 应用

2011-04-03T21:53:00Z

1、使用jquery实现日期选择

需要用到jquery jquery-ui-{vision}.js ui.all.css

本文链接

asp--forms

2011-04-02T23:29:00Z

1、html helper

<%: Html.TextBoxFor(model => model.Title,...

2、所见所得

http://stackoverflow.com/questions/1559800/get-custom-attributes-from-lambda-property-expression#1560950.

3、增加属性

<%: Html.TextBoxFor(model => model.Title, new {disabled="true", alt="alt text here"}) %>-----不可用。有ALT

4、按回车时候，默认提交按钮

<% using (Html.BeginForm("Article", "Home", FormMethod.Post,new Dictionary<string, object> { { "data-default",
"submitButton" }, { "id", "form1" } })) { %>

5、实现自动回传

<% using (Html.BeginForm()) {%>

<%= Html.DropDownList("id",
    new SelectList(ViewData["ArticleList"] as    List<Forms.Models.Article>, "ID", "Title"),
    new { onchange ="this.form.submit();"}) %><input type="submit" value="Change"/>
<%  } %>

本文链接

asp.net (5)--视图操作数据

2011-03-31T22:29:00Z

1、使用for 和foreach

2、控制checkbox

3、控制radioButtons

4、分页

通过在后台控制分页查询的内容来实现，oh....

5、

本文链接

asp.mvc （4）---Master Pages

2011-03-31T22:06:00Z

mvc前三章都是必须知道的（所以不用做备忘），

被忽视的往往是小东西，但这些东西会左右思路，决定成败。

1 如何创建和使用一个Master

在Master页面时设置

<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server"></asp:ContentPlaceHolder>

然后再使用页面上：

<asp:Content ID="Content1" ContentPlaceHolderID="MainContent"
runat="server">
<h2>Custom Master Demo</h2>

</asp:Content>

2、Control中ActionResult来确定一个页面的Master

if (DateTime.Now.Second % 2 == 0)

masterName = "Site2";
else
masterName = "Site";
return View("Index", masterName);

3、通过重写试图来决定

public class BaseViewPage : System.Web.Mvc.ViewPage
{
  protected override void OnPreInit(EventArgs e)
  {
    if(DateTime.Now.Second%2==0)
       Page.MasterPageFile = "~/Views/Shared/Site2.Master";
    else
        Page.MasterPageFile = "~/Views/Shared/Site.Master";
    base.OnPreInit(e);
  }

}

然后在页面上实现标签：

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" nherits="MvcApplication1.Models.BaseViewPage" %>

4、使用一个基础控制类来实现

public class BaseController : Controller

{
  protected override void OnActionExecuted(
    ActionExecutedContext filterContext)
  {
    var action = filterContext.Result as ViewResult;
    if (action != null)
    {
       if (DateTime.Now.Second % 2 == 0)
         action.MasterName = "Site2";
        else
         action.MasterName = "Site";
    }
    base.OnActionExecuted(filterContext);
  }
}

然后再使用的时候

public class HomeController : BaseController 实现所有。

5、传递数据到Master页面

首先设计一个 Controller

public class BaseController : Controller

{
  public BaseController()
  {
    List<string> manufacturers = new List<string>();
    manufacturers.Add("Ford");
    manufacturers.Add("Toyota");
    manufacturers.Add("Chevy");
    manufacturers.Add("Dodge");
    manufacturers.Add("Nissan");
    manufacturers.Add("Mazda");
    manufacturers.Add("Audi");
    ViewData["manufacturers"] = manufacturers;
  }
}

然后让相应的controller来继承他

public class HomeController : BaseController

这样就可以在Master通过 ViewData["manufacturers"]来访问数据了

6、如何在Master中使用编辑好的视图

首先，建设一个Control,注意ChildActionOnly

[ChildActionOnly]
public ActionResult _Categories()
{
  List<string> navigation = new List<string>();
  navigation.Add("Books");
  navigation.Add("Cars");
  navigation.Add("Clothes");
  navigation.Add("Computers");
  ViewData["navigation"] = navigation;
  return View();

}

然后建立 _Categories.ascx

在Master中这样使用

<%= Html.Action("_Categories", "Home") %>

7、嵌套的Master

......................................................会了1，难道2还远么？一样的！呵呵

本文链接

asp.net mvc 集中常用的工具 ---持续更新

2011-03-29T22:09:00Z

工具：一个在mvc框架好用的数据库控件

http://www.castleproject.org/castle/projects.html.

一个自动补全工具 nbuilder

NBuilder.org/Download

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