📄 cachebrowers.aspx

📁 1。使用ASP.NET+C# VS.NET 2003制作
💻 ASPX
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<%@ Page Language="C#" EnableViewState = "true"%>
<%@ import Namespace="System" %>
<%@ import Namespace="System.Configuration" %>
<%@ import Namespace="System.Collections" %>
<%@ import Namespace="System.Collections.Specialized" %>
<%@ import Namespace="System.Data" %>
<script runat="server">
//http://aspalliance.com/aldotnet/examples/cacheviewer.aspx
//http://scottwater.com
private void Page_Load(object sender, System.EventArgs e)
{
	if(!IsPostBack)
	{
		hlRefresh.NavigateUrl = Request.RawUrl;
		BindGrid();
	}
}

//绑定到DataGrid
private void BindGrid()
{
	//创建arraylist来保存cacheditem信息
	ArrayList al = new ArrayList();
	IDictionaryEnumerator CacheEnum = Cache.GetEnumerator();
	while (CacheEnum.MoveNext())
	{
		al.Add(new CachedItem(CacheEnum.Key.ToString(),CacheEnum.Value.GetType().ToString()));
	}
	litCount.Text = al.Count.ToString();
	dgCachedItems.DataSource = al;
	dgCachedItems.DataBind();
}

//删除Cache项
protected void Grid_ItemCommand(object sender, DataGridCommandEventArgs e)
{
	HyperLink l = (HyperLink)e.Item.FindControl("CacheItemName");
	//确保我们找到了该项
	if(l != null)
	{
		Cache.Remove(l.Text);
	}
	this.BindGrid();
}

protected void Grid_Created(object sender, DataGridItemEventArgs e)
{
	if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
	{
		((Literal)e.Item.FindControl("Counter")).Text = (e.Item.ItemIndex + 1).ToString();
	}
}
private class CachedItem
{	
	public CachedItem(){}	
	public CachedItem(string key, string type)
	{
		this.CacheKey = key;
		this.CacheType = type;
	}
	
	private string _cacheKey;
	public string CacheKey
	{
		get {return this._cacheKey;}
		set {this._cacheKey = value;}
	}
	
	private string _cacheType;
	public string CacheType
	{
		get {return this._cacheType;}
		set {this._cacheType = value;}
	}
}

//Remove All
void lbRemoveAll_Click(object sender, EventArgs e)
{
	IDictionaryEnumerator CacheEnum = Cache.GetEnumerator();
	while (CacheEnum.MoveNext())
	{
		Cache.Remove(CacheEnum.Key.ToString());
	}
	BindGrid();
}

</script>
<html>
<head>
<title>Cache管理器</title>
<style>
	TD,A,P,SPAN {font-size:9pt;}
	.Header {background-color:#EDEDED;text-align:center;font-weight:bold;}
</style>
</head>
<body >
<form runat="server">
浏览、删除缓存 
<br/>
数量： 
<asp:Literal id="litCount" runat="server"></asp:Literal>
<br/>
<asp:LinkButton id="lbRemoveAll" onclick="lbRemoveAll_Click" runat="server">清除全部缓存项</asp:LinkButton>
<br/>
<asp:HyperLink id="hlRefresh" Text="刷新" Runat="server"></asp:HyperLink>
<br/><br/>
<asp:DataGrid id="dgCachedItems" runat="server" OnItemCommand="Grid_ItemCommand"
 AutoGenerateColumns="False" OnItemCreated="Grid_Created">
 <HeaderStyle CssClass="Header"></HeaderStyle> 
	<Columns>
	<asp:TemplateColumn HeaderText="数量">
	<ItemTemplate>
		<asp:Literal id="Counter" runat="server" />
	</ItemTemplate>
	</asp:TemplateColumn>
	<asp:TemplateColumn HeaderText="键">
	<ItemTemplate>
	<asp:HyperLink id="CacheItemName" runat="server" Target="_blank"
		Text='<%# ((CachedItem)(Container.DataItem)).CacheKey %>' 
		NavigateUrl = '<%# ((CachedItem)(Container.DataItem)).CacheKey %>'/>
	</ItemTemplate>
	</asp:TemplateColumn>
	<asp:TemplateColumn HeaderText="类型">
	<ItemTemplate>
		<asp:Literal id="CacheItemDataType" runat="server" 
			text='<%# ((CachedItem)(Container.DataItem)).CacheType %>' />
	</ItemTemplate>
	</asp:TemplateColumn>
	<asp:TemplateColumn HeaderText="删除">
	<ItemTemplate>
	<asp:LinkButton ID="RemoveButton" Text="删除" CommandName="RemoveFromCache"
		 runat="server" />
	</ItemTemplate>
	</asp:TemplateColumn>
	</Columns>
</asp:DataGrid>
</form>
</body>
</html>
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