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标题: Tree控件增加数组对象的绑定支持 [打印本页]

作者: chenxiyin 时间: 2014-12-22 16:45
标题: Tree控件增加数组对象的绑定支持
绑定对象的方法里增加以下代码
else if (DataSource is Array)
            {
                  XmlDocument xml = new XmlDocument();
                  XmlSerializer serializer = new XmlSerializer(DataSource.GetType());
                  TextWriter writer = new StringWriter();
                  serializer.Serialize(writer, DataSource);
                  writer.Close();
                  xml.LoadXml(writer.ToString());
                  NewDataBindToXml(null, xml.DocumentElement.ChildNodes);
            }

///绑定方法
      private void NewDataBindToXml(TreeNode treeNode, XmlNodeList nodes)
      {
         foreach (XmlNode node in nodes)
         {
            var chidnodes = node.ChildNodes;
            var name = string.Empty;
            var value = string.Empty;
            TreePreNodeEventArgs preArgs = new TreePreNodeEventArgs(node);
            OnPreNodeDataBound(preArgs);
            if (!preArgs.Cancelled)
            {
                  TreeNode childNode = new TreeNode();
                  if (treeNode == null)
                  {
                     Nodes.Add(childNode);
                  }
                  else
                  {
                     treeNode.Nodes.Add(childNode);
                  }
                  foreach (XmlNode n in chidnodes)
                  {
                     if (n.Name == _NameFiled)
                     {
                        name = n.InnerText;
                        childNode.Text = name;
                     }
                     else if (n.Name == _ValueFiled)
                     {
                        value = n.InnerText;
                        childNode.NodeID = value;
                     }
                     else if (n.Name == _ListFiled)
                     {
                        if (n.ChildNodes != null)
                        {
                              NewDataBindToXml(childNode, n.ChildNodes);
                        }
                     }
                  }
                  OnNodeDataBound(new TreeNodeEventArgs(childNode, node));
            }
         }
      }

控件增加三个字段
Tree1.ValueFiled = "MenuID";
            Tree1.NameFiled = "MenuName";
            Tree1.ListFiled = "MenuList";

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