DataList控件，每笔记录会放置一个Button，让用户Click这个Button，将会获取这笔记录相关信息。下面这个例子演示是怎样获取记录的主键。
.aspx，你需要为Datalist写OnItemCreated事件和定义DataKwyField这样才可以定义记录铵钮事件与取得记录的主键值。
View Code < asp:ScriptManager ID ="ScriptManager1" runat ="server" > </ asp:ScriptManager > < asp:UpdatePanel ID ="UpdatePanel1" runat ="server" > < ContentTemplate > < asp:DataList ID ="DataList1" runat ="server" DataKeyField ="GalleryId" OnItemCreated ="DataList1_ItemCreated" > < ItemTemplate > < asp:Button ID ="Button1" runat ="server" Text ="Button" /> </ ItemTemplate > </ asp:DataList > </ ContentTemplate > </ asp:UpdatePanel >
.aspx.cs:
View Code protected void Page_Load( object sender, EventArgs e) { if ( ! IsPostBack) { Data_Binding(); } } private void Data_Binding() { this .DataList1.DataSource = xxx; this .DataList1.DataBind(); } protected void DataList1_ItemCreated( object sender, DataListItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { // 判断Button是否存在 if (e.Item.FindControl( " Button1 " ) != null ) { // 如果存在，把对象转换为Button。 Button InsusButton = (Button)e.Item.FindControl( " Button1 " ); // 产生Button Click事件 InsusButton.Click += new EventHandler(InsusButton_Click); } } } private void InsusButton_Click( object sender, EventArgs e) { Button button = (Button)sender; DataListItem dli = (DataListItem)button.Parent; string pk = this .DataList1.DataKeys[dli.ItemIndex].ToString(); // 下面Utility请从Insus.NET博客下载 ( new InsusJsUtility()).JsAlert(pk); }