Gets or sets the cache item at the specified key.
Assembly: System.Web (in System.Web.dll)
Public Property Item ( _ key As String _ ) As Object Get Set
public Object this[ string key ] { get; set; }
public: property Object^ Item[String^ key] { Object^ get (String^ key); void set (String^ key, Object^ value); }
member Item : Object with get, set
Parameters
- key
- Type: System.String
A String object that represents the key for the cache item.
You can use this property to retrieve the value of a specified cache item, or to add an item and a key for it to the cache. Adding a cache item using the Item property is equivalent to calling the Cache.Insert method.
The following example uses the Item property to retrieve the value of a cached object associated with the Key1 key. It then uses the HttpResponse.Write method to write the value and introductory text and the B HTML element to a Web Forms page.
Response.Write("Value of cache key: <B>" + Server.HtmlEncode(CType(Cache("Key1"),String)) + "</B>")
Response.Write("Value of cache key: <B>" + Server.HtmlEncode(Cache["Key1"] as string) + "</B>");
The following example demonstrates using this property to insert the value of a text box into the cache.
Private Sub cmdAdd_Click(objSender As Object, objArgs As EventArgs) If txtName.Text <> "" Then ' Add this item to the cache. Cache(txtName.Text) = txtValue.Text End If End Sub
private void cmdAdd_Click(Object objSender, EventArgs objArgs) { if (txtName.Text != "") { // Add this item to the cache. Cache[txtName.Text] = txtValue.Text; } }
.NET Framework
Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.