框架
// Copyright(C) 2017 铭飞科技
//
#region 版权信息
/*
* 此文件自 Copyright(C) 2008 - 2017 铭飞科技 Classification:无 开源网站:http://www.http://www. coding
*/
#endregion
using System;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
namespace Web.Templates.UI
{
///
/// 标签树控件
///
public class Tree : System.Web.UI.WebControls.TreeView
{
private string _styleName = "";
///
/// 样式
///
/// The name of the style.
public string StyleName
{
get { return _styleName; }
set { _styleName = value; }
}
private string _checkedValue = "";
///
/// 默认选中当前值
///
/// The checked value.
public string CheckedValue
{
get { return _checkedValue; }
set { _checkedValue = value; }
}
private string _checkBoxName = "";
///
/// 复选框名称
///
/// The check box name.
public string CheckBoxName
{
get { return _checkBoxName; }
set { _checkBoxName = value; }
}
private int _checkParentType = -1;
///
///
///
/// The type of the check parent.
public int CheckParentType
{
get { return _checkParentType; }
set { _checkParentType = value; }
}
private int _checkChildType = -1;
///
///
///
/// The type of the check child.
public int CheckChildType
{
get { return _checkChildType; }
set { _checkChildType = value; }
}
private string _showLevel = "999";
///
/// 显示层级
///
/// The show level.
public string ShowLevel
{
get { return _showLevel; }
set { _showLevel = value; }
}
private string _valueField = "id";
///
/// 编号字段名
///
/// The value field.
public string ValueField
{
get { return _valueField; }
set { _valueField = value; }
}
private string _textField = "title";
///
/// 显示字段名
///
/// The text field.
public string TextField
{
get { return _textField; }
set { _textField = value; }
}
private string _fatherField = "parentid";
///
/// 父编号字段名
///
/// The father field.
public string FatherField
{
get { return _fatherField; }
set { _fatherField = value; }
}
private TreeNodeBindEventHandler _onBind;
///
/// 构建事件
///
/// The on bind event.
public event TreeNodeBindEventHandler OnBind
{
add { _onBind += value; }
remove { _onBind -= value; }
}
private DataTable _dataSource;
///
/// 数据源
///
/// The data source.
public DataTable DataSource
{
get { return _dataSource; }
set { _dataSource = value; }
}
///
/// 绑定数据
///
public override void DataBind()
{
this.Nodes.Clear();
this.ShowCheckBox = this.CheckBoxName != "" && this.CheckBoxName != null;
if (_dataSource != null)
{
TreeNode root_node = new TreeNode();
root_node.Value = "-1";
root_node.Text = "根目录";
Nodes.Add(root_node);
List root_list = new List();
for (int i = 0; i < _dataSource.Rows.Count; i++)
{
TreeNode node = new TreeNode();
DataRow dr = _dataSource.Rows[i];
node.Value = dr[_valueField].ToString();
node.Text = dr[_textField].ToString();
node.SelectAction = TreeNodeSelectAction.None;
//node.Depth =int.Parse(_showLevel);
if (_onBind != null)
{
_onBind(node);
}
if (dr[_fatherField].ToString() == "-1" || dr[_fatherField].ToString() == "0")
{
Nodes.Add(node);
if (node.Value == _checkedValue)
{
node.Checked = true;
}
int has = 0;
for (int j = 0; j < root_list.Count; j++)
{
if (root_list[j] == int.Parse(node.Value))
{
has = 1;
}
}
if (has == 0)
{
root_list.Add(int.Parse(node.Value));
}
}
else
{
TreeNode father_node = GetNode(root_node, dr[_fatherField].ToString());
if (father_node != null)
{
father_node.ChildNodes.Add(node);
if (node.Value == _checkedValue)
{
node.Checked = true;
}
}
}
}
//绑定事件，自动勾选父级节点
if (this.CheckParentType == 0 || this.CheckChildType == 0)
{
string enterjvice = "";
if (this.CheckParentType == 0)
{
enterjvice += "FatherChecked";
}
if (this.CheckChildType == 0)
{
enterjvice += "ChildChecked";
}
if (enterjvice != "" && this.Nodes.Count > 0)
{
this.Attributes.Add("onclick", "JscAutoCheckedNode(this,'" + enterjvice + "');");
}
}
}
base.DataBind();
}
///
/// 构建HTML
///
/// The object that receives the server control content.
protected override void Render(HtmlTextWriter writer)
{
string[] style_list = new string[] { "admin_tree", "data_tree", "input_tree", "menu_tree", "popmenu_tree" };
switch (_styleName)
{
case "menu_tree":
this.ShowCheckBox = false;
this.CssClass += " menu";
break;
case "popmenu_tree":
this.
Public @ 2023-02-24 22:25:29