Linq 2 Xml ve Treeview

8.Ocak.2008

Linq to xml ile bir xml dosyası oluşturup çalışma zamanı da Treeview kontrolünde gösterelim.

//aspx
<body>
   <form id="form1" runat="server">
   <div>
      <asp:TreeView ID="TreeView1" runat="server">
         <DataBindings>
            <asp:TreeNodeBinding DataMember="Categories" Text="Categories" />
            <asp:TreeNodeBinding DataMember="Category" TextField="CategoryName" ValueField="CategoryID" />
         </DataBindings>
      </asp:TreeView>
   </div>
   </form>
</body>

//cs
private void bindTree()
{
   northwindDataContext db = new northwindDataContext();
   string path = Server.MapPath(".\\App_Data\\data.xml");
   if (!File.Exists(path))
   {
      XDocument xdoc = new XDocument(
         new XDeclaration("1.0", "utf-8","yes"),
         new XElement("Categories",
            from p in db.Categories
            orderby p.CategoryName
            select
               new XElement("Category",
               new XAttribute("CategoryID", p.CategoryID),
               new XAttribute("CategoryName", p.CategoryName))));
      xdoc.Save(path);
   }
   XmlDataSource xd = new XmlDataSource();
   xd.ID = "xid1";
   xd.DataFile = path;
   this.form1.Controls.Add(xd);
   TreeView1.DataSourceID = "xid1";
}

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