BulletedList排序

<div>
??????? <asp:Button ID="Button5" runat="server" Text="升序" CommandName="Sort"
??????????? CommandArgument="ASC" oncommand="Button5_Command"
??????????? onclick="Button5_Click" />
??????? <asp:Button ID="Button6" runat="server" Text="降序" CommandName="Sort"?
??????????? CommandArgument="DESC" oncommand="Button5_Command"/>
??????? <br />
??????? <br />
??????? <asp:BulletedList ID="bltBooks" runat="server">
??????? </asp:BulletedList>
??? </div>

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private List<string> books = new List<string>();??? protected void Page_Load(object sender,EventArgs e)??? {??????? books.Add("C#");??????? books.Add("JAVA");??????? books.Add("SQLServer2005");??????? ??? }??? protected void Button5_Command(object sender,CommandEventArgs e)??? {??????? if (e.CommandName == "Sort")??????? {??????????? switch (e.CommandArgument.ToString())??????????? {??????????????? case "ASC":??????????????????? books.Sort(SortASC);??????????????????? break;??????????????? case "DESC":??????????????????? books.Sort(SortDESC);??????????????????? break;??????????? }??????? }??? }??? int SortASC(string x,string y)??? {??????? return string.Compare(x,y);??? }??? int SortDESC(string x,string y)??? {??????? return (string.Compare(x,y) * -1);??? }??? void Page_PreRender(object sender,EventArgs e)??? {??????? bltBooks.DataSource = books;??????? bltBooks.DataBind();??? }

（编辑：李大同）

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