抢先式多线程网络蜘蛛
抢先式多线程网络蜘蛛
整理自网络ChatGPT产生之内容，文本内容不具备参考意义，程序内容及代码片段有且仅有借鉴意义。
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); Listroot_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 /// /// Theobject 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 22:24:01 整理自网络ChatGPT产生之内容，文本内容不具备参考意义，程序内容有且仅有借鉴意义。
