語言

AggregateCacheDependency.Add(CacheDependency[]) 方法

定義

命名空間:
System.Web.Caching
組件:
System.Web.dll

在物件中加入一組 CacheDependency 物件 AggregateCacheDependency 。

public:
 void Add(... cli::array <System::Web::Caching::CacheDependency ^> ^ dependencies);
public void Add(params System.Web.Caching.CacheDependency[] dependencies);
member this.Add : System.Web.Caching.CacheDependency[] -> unit
Public Sub Add (ParamArray dependencies As CacheDependency())

參數

dependencies
CacheDependency[]

要加入的物件陣列 CacheDependency 。

例外狀況

ArgumentNullException

dependencies 是 null。

-或-

在 中的CacheDependency一個dependencies物件是 null。

InvalidOperationException

一個 CacheDependency 物件會被 Cache 多個項目引用。

範例

以下程式碼範例結合建構子，將 Add 此方法 AggregateCacheDependency 結合，建立兩個 CacheDependency 物件，將其加入 CacheDependency 名為 myDepArray的陣列，然後讓快取中的項目依賴於這兩個 CacheDependency 物件。

         ' Create two CacheDependency objects, one to a
         ' text file and the other to an XML file. 
         ' Create a CacheDependency array with these 
         ' two objects as items in the array.
          txtDep = New CacheDependency(Server.MapPath("Storage.txt"))
          xmlDep = New CacheDependency(Server.MapPath("authors.xml"))
          Dim DepArray() As CacheDependency = {txtDep, xmlDep}

          ' Create an AggregateCacheDependency object and 
          ' use the Add method to add the array to it.   
          aggDep = New AggregateCacheDependency()
          aggDep.Add(DepArray)

          ' Call the GetUniqueId method to generate
          ' an ID for each dependency in the array.
          msg1.Text = aggDep.GetUniqueId()
          
          ' Add the new data set to the cache with 
          ' dependencies on both files in the array.
          Cache.Insert("XMLDataSet", Source, aggDep)

適用於