using System;
using System.Collections.Generic;
using System.Web;
using System.Collections.Specialized;
using System.Web.UI;
using System.Web.UI.WebControls;

public class CustomTreeNode : TreeNode
{
    public CustomTreeNode()
        : base()
    {
    }
    /// <summary>
    /// used to store Node Attributes
    /// </summary>

    private NameValueCollection _Attributes = new NameValueCollection();
    /// <summary>
    ///used to store the CSS Class applied to a node. 
    /// </summary>

    private string _cssClass;
    /// <summary>
    /// Property used to set the CSS Class applied to a Node
    /// </summary>
    public string cssClass
    {
        get { return _cssClass; }
        set { _cssClass = value; }
    }

    /// <summary>
    /// Property used to add Attributes to a node
    /// </summary>
    public NameValueCollection Attributes
    {
        get { return this._Attributes; }
        set { this._Attributes = value; }
    }
    /// <summary>
    /// add additional rendering to the node
    /// Add a div Tag and a class Attribute
    /// </summary>
    /// <param name="writer">represents the output stream used to write content to a Web page</param>
    protected override void RenderPreText(HtmlTextWriter writer)
    {
        writer.AddAttribute(HtmlTextWriterAttribute.Class, cssClass);
        writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "loadingShow(this)");
        //執行取得座標的java函式
        writer.RenderBeginTag(HtmlTextWriterTag.Div);
        base.RenderPreText(writer);
    }
    /// <summary>
    /// add additional rendering to the node
    /// End Tag
    /// </summary>
    /// <param name="writer">represents the output stream used to write content to a Web page</param>
    protected override void RenderPostText(HtmlTextWriter writer)
    {
        writer.RenderEndTag();
        base.RenderPostText(writer);
    }


}