using DevExpress.XtraEditors;
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using DevExpress.XtraTreeList;
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using Gs.DevApp.Entity;
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using Gs.DevApp.ToolBox;
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using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Gs.DevApp
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{
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public partial class XtraForm1 : DevExpress.XtraEditors.XtraForm
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{
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public XtraForm1()
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{
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InitializeComponent();
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tlMenu.CustomDrawNodeCheckBox += TreeList1_CustomDrawNodeCheckBox;
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getTree();
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// 初始化TreeList
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//tlMenu.BestFitColumns();
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//tlMenu.EndInit();
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//// 设置复选框显示模式
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//tlMenu.OptionsBehavior.Editable = true;
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//this.tlMenu.OptionsView.ShowCheckBoxes = true;
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//tlMenu.OptionsSelection.MultiSelect = true;
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////tlMenu.OptionsSelection.MultiSelectMode = TreeListMultiSelectMode.;
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// 添加GetShowCheckBox事件处理器
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tlMenu.OptionsBehavior.Editable = true;
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tlMenu.OptionsSelection.EnableAppearanceFocusedCell = false;
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tlMenu.OptionsSelection.MultiSelect = true;
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tlMenu.OptionsSelection.MultiSelectMode = TreeListMultiSelectMode.CellSelect;
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// this.tlMenu.GetChildAtPoint += new DevExpress.XtraTreeList.GetChildNodeCheckBoxEventHandler(this.treeList_GetChildNodeCheckBox)
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}
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private void TreeList1_CustomDrawNodeCheckBox(object sender, DevExpress.XtraTreeList.CustomDrawNodeCheckBoxEventArgs e)
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{
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// 判断当前节点是否为叶子节点（无子节点）
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if (e.Node.Nodes.Count == 0)
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{
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// 允许绘制复选框（默认行为）
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}
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else
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{
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// 取消绘制复选框
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e.Handled = true;
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}
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}
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// 可选：处理节点展开事件，确保动态加载的子节点生效
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private void treeList1_BeforeExpand(object sender, BeforeExpandEventArgs e)
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{
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// 若子节点是动态加载的，在此处加载数据
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// LoadChildNodes(e.Node);
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}
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/// <summary>
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/// 读取列表
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/// </summary>
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private void getTree()
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{
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var pgq = new PageQueryModel(1, 999999, "a.idx");
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var json = JsonConvert.SerializeObject(pgq);
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try
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{
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var strReturn =
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UtilityHelper.HttpPost("", "MenuAction/GetListPage", json);
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var dd = UtilityHelper.ReturnToTablePage(strReturn);
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var dt = dd.rtnData.list;
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tlMenu.DataSource = dt;
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tlMenu.KeyFieldName = "guid";
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tlMenu.ParentFieldName = "upGuid";
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tlMenu.Tag = "name";
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tlMenu.EndUpdate();
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this.tlMenu.CollapseAll();
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tlMenu.OptionsBehavior.Editable = true;
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tlMenu.OptionsBehavior.AllowRecursiveNodeChecking = false;
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}
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catch (Exception ex)
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{
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MsgHelper.Warning("提示：" + ex.Message);
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}
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}
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}
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}
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