DevExpress的TreeList的常用属性设置以及常用事件

场景

Winform控件-DevExpress18下载安装注册以及在VS中使用：

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100061243

DevExpress的TreeList怎样设置数据源，从实例入手：

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/102548490

在上面实现简单的TreeList并设置数据源，显示效果仍然不是想要的树形结构的效果。

如果想实现如下这样效果，还需要进行进一步的属性设置。

 

 

注：

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实现

   /// 为树控件设置数据源         /// </summary>         /// <param name="treeList">树控件</param>         /// <param name="data">数据对象</param>         /// <param name="fieldName">显示的字段</param>         /// <param name="keyFieldName">键字段</param>         /// <param name="parentFieldName">父级键字段</param>         public static void SetTreeListDataSource(DevExpress.XtraTreeList.TreeList treeList, List<DataTreeNode> data, string fieldName, string keyFieldName, string parentFieldName)         {             #region 设置节点图标              System.Windows.Forms.ImageList imgList = new System.Windows.Forms.ImageList();             imgList.Images.AddRange(imgs);              treeList.SelectImageList = imgList;              //目录展开             treeList.AfterExpand -= treeList_AfterExpand;             treeList.AfterExpand += treeList_AfterExpand;              //目录折叠             treeList.AfterCollapse -= treeList_AfterCollapse;             treeList.AfterCollapse += treeList_AfterCollapse;              //数据节点单击，开启整行选中             treeList.MouseClick -= treeList_MouseClick;             treeList.MouseClick += treeList_MouseClick;              //数据节点双击选中             treeList.MouseDoubleClick -= treeList_MouseDoubleClick;             treeList.MouseDoubleClick += treeList_MouseDoubleClick;              //焦点离开事件             treeList.LostFocus -= treeList_LostFocus;             treeList.LostFocus += treeList_LostFocus;               #endregion              #region 设置列头、节点指示器面板、表格线样式              treeList.OptionsView.ShowColumns = false;             //隐藏列标头             treeList.OptionsView.ShowIndicator = false;           //隐藏节点指示器面板              treeList.OptionsView.ShowHorzLines = false;           //隐藏水平表格线             treeList.OptionsView.ShowVertLines = false;           //隐藏垂直表格线             treeList.OptionsView.ShowIndentAsRowStyle = false;              #endregion              #region 初始禁用单元格选中，禁用整行选中              treeList.OptionsView.ShowFocusedFrame = true;                               //设置显示焦点框             treeList.OptionsSelection.EnableAppearanceFocusedCell = false;              //禁用单元格选中             treeList.OptionsSelection.EnableAppearanceFocusedRow = false;               //禁用正行选中             //treeList.Appearance.FocusedRow.BackColor = System.Drawing.Color.Red;      //设置焦点行背景色              #endregion              #region 设置TreeList的展开折叠按钮样式和树线样式              treeList.OptionsView.ShowButtons = true;                  //显示展开折叠按钮             treeList.LookAndFeel.UseDefaultLookAndFeel = false;       //禁用默认外观与感觉             treeList.LookAndFeel.UseWindowsXPTheme = true;            //使用WindowsXP主题             treeList.TreeLineStyle = DevExpress.XtraTreeList.LineStyle.Percent50;     //设置树线的样式              #endregion              #region 添加单列              DevExpress.XtraTreeList.Columns.TreeListColumn colNode = new DevExpress.XtraTreeList.Columns.TreeListColumn();             colNode.Name = String.Format("col{0}", fieldName);             colNode.Caption = fieldName;             colNode.FieldName = fieldName;             colNode.VisibleIndex = 0;             colNode.Visible = true;              colNode.OptionsColumn.AllowEdit = false;                        //是否允许编辑             colNode.OptionsColumn.AllowMove = false;                        //是否允许移动             colNode.OptionsColumn.AllowMoveToCustomizationForm = false;     //是否允许移动至自定义窗体             colNode.OptionsColumn.AllowSort = false;                        //是否允许排序             colNode.OptionsColumn.FixedWidth = false;                       //是否固定列宽             colNode.OptionsColumn.ReadOnly = true;                          //是否只读             colNode.OptionsColumn.ShowInCustomizationForm = true;           //移除列后是否允许在自定义窗体中显示              treeList.Columns.Clear();             treeList.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { colNode });              #endregion              #region 绑定数据源              treeList.KeyFieldName = keyFieldName;             treeList.ParentFieldName = parentFieldName;             treeList.DataSource = data;             treeList.RefreshDataSource();              #endregion              #region 初始化图标              SetNodeImageIndex(treeList.Nodes.FirstOrDefault());              #endregion         }

 

来源：博客园

作者：霸道流氓

链接：https://www.cnblogs.com/badaoliumangqizhi/archive/2019/10/14/11671655.html