mcs/class/System.Web/Test/standalone/datalist/datalist-style-edit.aspx

   1 <!-- Inspired by bug 49020 -->
   2 <%@ Page language="c#" Debug="true" %>
   3 <%@ Import Namespace="System.Data" %>
   4 <html>
   5         <head>
   6                 <script runat="server">
   7                 DataSet ds;
   8                 private void Page_Load (object sender, EventArgs e)
   9                 {
  10                         PopulateList();
  11                 }
  12
  13                 private void PopulateList()
  14                 {
  15                         if (IsPostBack) {
  16                                 ds = (DataSet) ViewState ["ds"];
  17                                 return;
  18                         } else {
  19                                 ds = new DataSet ();
  20                                 ds.ReadXml (new System.IO.StringReader (@"
  21 <DataSet>
  22         <Stocks Company='Novell Inc.'     Symbol='NOVL' Price='6.14'   />
  23         <Stocks Company='Microsoft Corp.' Symbol='MSFT' Price='25.92'  />
  24         <Stocks Company='Google'          Symbol='GOOG' Price='291.60' />
  25 </DataSet>
  26 "));
  27                                 ViewState ["ds"] = ds;
  28                         }
  29
  30                         DataList1.GridLines = GridLines.Both;
  31                         DataList1.DataSource = ds;
  32                         DataList1.DataBind();
  33                 }
  34
  35                 private void EditCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
  36                 {
  37                         DataList1.EditItemIndex = e.Item.ItemIndex;
  38                         DataList1.DataSource = ds;
  39                         DataList1.DataBind();
  40                 }
  41
  42                 private void UpdateCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
  43                 {
  44
  45                         string name = ((TextBox)e.Item.FindControl("edit_name")).Text;
  46                         ds.Tables[0].Rows [DataList1.EditItemIndex]["Company"] = name;
  47                         DataList1.EditItemIndex = -1;
  48                         ViewState ["ds"] = ds;
  49                         DataList1.DataSource = ds;
  50                         DataList1.DataBind();
  51                 }
  52                 </script>
  53         </head>
  54         <body>
  55                 <form runat="server">
  56                         <asp:datalist
  57                                 runat="server"
  58                                 id="DataList1"
  59                                 OnEditCommand="EditCommand"
  60                                 OnUpdateCommand="UpdateCommand"
  61                                 RepeatColumns="2"
  62                                 RepeatDirection="vertical">
  63                                 <ItemTemplate>
  64                                         <asp:label runat="server" Text='<%# DataBinder.Eval (Container.DataItem, "Company") %>' />
  65                                         <asp:LinkButton Runat="server" CommandName="Edit" Text="Edit" />
  66                                 </ItemTemplate>
  67                                 <EditItemTemplate>
  68                                                 <asp:textbox id="edit_name" text='<%# DataBinder.Eval(Container.DataItem, "Company") %>' runat="server" />
  69                                                 <asp:linkbutton runat="server" commandname="Update" text="Update" />
  70                                 </EditItemTemplate>
  71                         </asp:datalist>
  72                 </form>
  73         </body>
  74 </html>