場景
Winform控制元件-DevExpress18下載安裝注冊以及在VS中使用：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100061243
在上面已經實作DevExpress的安裝之后，拖拽一個TreeList，然后怎樣給其設定資料源，
DevExpress的TreeList怎樣設定資料源，從實體入手：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/102548490
參照上面進行設定資料源的程序，
如果要實作這樣單列的樹形結構應該怎樣設定引數以及資料源，
注：
博客主頁：
https://blog.csdn.net/badao_liumang_qizhi
關注公眾號
霸道的程式猿
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實作
首先新建一個Winform程式，然后拖拽一個TreeList控制元件
然后雙擊進入表單的加載事件中，如果在別的地方設定資料源同理，
首先進行TreeList樣式等的設定
#region 設定列頭、節點指示器面板、表格線樣式 treeList1.OptionsView.ShowColumns = false; //隱藏列標頭 treeList1.OptionsView.ShowIndicator = false; //隱藏節點指示器面板 treeList1.OptionsView.ShowHorzLines = false; //隱藏水平表格線 treeList1.OptionsView.ShowVertLines = false; //隱藏垂直表格線 treeList1.OptionsView.ShowIndentAsRowStyle = false; #endregion #region 初始禁用單元格選中，禁用整行選中 treeList1.OptionsView.ShowFocusedFrame = true; //設定顯示焦點框 treeList1.OptionsSelection.EnableAppearanceFocusedCell = false; //禁用單元格選中 treeList1.OptionsSelection.EnableAppearanceFocusedRow = false; //禁用正行選中 #endregion #region 設定TreeList的展開折疊按鈕樣式和樹線樣式 treeList1.OptionsView.ShowButtons = true; //顯示展開折疊按鈕 treeList1.LookAndFeel.UseDefaultLookAndFeel = false; //禁用默認外觀與感覺 treeList1.LookAndFeel.UseWindowsXPTheme = true; //使用WindowsXP主題 treeList1.TreeLineStyle = DevExpress.XtraTreeList.LineStyle.Percent50; //設定樹線的樣式 #endregion
然后設定其單列顯示
#region 添加單列 DevExpress.XtraTreeList.Columns.TreeListColumn colNode = new DevExpress.XtraTreeList.Columns.TreeListColumn(); colNode.Name = String.Format("col{0}", "NodeText"); colNode.Caption = "NodeText"; colNode.FieldName = "NodeText"; colNode.VisibleIndex = 0; colNode.Visible = true; colNode.OptionsColumn.AllowEdit = false; //是否允許編輯 colNode.OptionsColumn.AllowMove = false; //是否允許移動 colNode.OptionsColumn.AllowMoveToCustomizationForm = false; //是否允許移動至自定義表單 colNode.OptionsColumn.AllowSort = false; //是否允許排序 colNode.OptionsColumn.FixedWidth = false; //是否固定列寬 colNode.OptionsColumn.ReadOnly = true; //是否只讀 colNode.OptionsColumn.ShowInCustomizationForm = true; //移除列后是否允許在自定義表單中顯示 treeList1.Columns.Clear(); treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { colNode }); #endregion
注：
這里的FieldName 要與資料源中要顯示的屬性名相對應，
然后設定作為識別節點的主鍵欄位，這里使用Id來區分標記每個節點；設定其父節點的標記屬性，
treeList1.KeyFieldName = "Id"; treeList1.ParentFieldName = "ParentId";
為了構建資料源，我們需要新建一個DataTreeNode類
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace TreeListTest { public class DataTreeNode { private string id; private string parentId; private string nodeText; public string Id { get { return id; } set { id = value; } } public string ParentId { get { return parentId; } set { parentId = value; } } public string NodeText { get { return nodeText; } set { nodeText = value; } } } }
然后再回到上面構建資料源
DataTreeNode node1 = new DataTreeNode(); node1.Id = "1"; node1.ParentId = null; node1.NodeText = "1公眾號"; DataTreeNode node11 = new DataTreeNode(); node11.Id = "2"; node11.ParentId = "1"; node11.NodeText = "1-1霸道的程式猿"; DataTreeNode node111 = new DataTreeNode(); node111.Id = "3"; node111.ParentId = "2"; node111.NodeText = "1-1-1大量編程資源"; List<DataTreeNode> data = https://www.cnblogs.com/badaoliumangqizhi/p/new List<DataTreeNode>(); data.Add(node1); data.Add(node11); data.Add(node111);
然后給TreeList設定資料源
treeList1.DataSource = data;
treeList1.RefreshDataSource();
最終完整的表單加載方法代碼
private void Form1_Load(object sender, EventArgs e) { #region 設定列頭、節點指示器面板、表格線樣式 treeList1.OptionsView.ShowColumns = false; //隱藏列標頭 treeList1.OptionsView.ShowIndicator = false; //隱藏節點指示器面板 treeList1.OptionsView.ShowHorzLines = false; //隱藏水平表格線 treeList1.OptionsView.ShowVertLines = false; //隱藏垂直表格線 treeList1.OptionsView.ShowIndentAsRowStyle = false; #endregion #region 初始禁用單元格選中，禁用整行選中 treeList1.OptionsView.ShowFocusedFrame = true; //設定顯示焦點框 treeList1.OptionsSelection.EnableAppearanceFocusedCell = false; //禁用單元格選中 treeList1.OptionsSelection.EnableAppearanceFocusedRow = false; //禁用正行選中 #endregion #region 設定TreeList的展開折疊按鈕樣式和樹線樣式 treeList1.OptionsView.ShowButtons = true; //顯示展開折疊按鈕 treeList1.LookAndFeel.UseDefaultLookAndFeel = false; //禁用默認外觀與感覺 treeList1.LookAndFeel.UseWindowsXPTheme = true; //使用WindowsXP主題 treeList1.TreeLineStyle = DevExpress.XtraTreeList.LineStyle.Percent50; //設定樹線的樣式 #endregion #region 添加單列 DevExpress.XtraTreeList.Columns.TreeListColumn colNode = new DevExpress.XtraTreeList.Columns.TreeListColumn(); colNode.Name = String.Format("col{0}", "NodeText"); colNode.Caption = "NodeText"; colNode.FieldName = "NodeText"; colNode.VisibleIndex = 0; colNode.Visible = true; colNode.OptionsColumn.AllowEdit = false; //是否允許編輯 colNode.OptionsColumn.AllowMove = false; //是否允許移動 colNode.OptionsColumn.AllowMoveToCustomizationForm = false; //是否允許移動至自定義表單 colNode.OptionsColumn.AllowSort = false; //是否允許排序 colNode.OptionsColumn.FixedWidth = false; //是否固定列寬 colNode.OptionsColumn.ReadOnly = true; //是否只讀 colNode.OptionsColumn.ShowInCustomizationForm = true; //移除列后是否允許在自定義表單中顯示 treeList1.Columns.Clear(); treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { colNode }); #endregion treeList1.KeyFieldName = "Id"; treeList1.ParentFieldName = "ParentId"; DataTreeNode node1 = new DataTreeNode(); node1.Id = "1"; node1.ParentId = null; node1.NodeText = "1公眾號"; DataTreeNode node11 = new DataTreeNode(); node11.Id = "2"; node11.ParentId = "1"; node11.NodeText = "1-1霸道的程式猿"; DataTreeNode node111 = new DataTreeNode(); node111.Id = "3"; node111.ParentId = "2"; node111.NodeText = "1-1-1大量編程資源"; List<DataTreeNode> data = https://www.cnblogs.com/badaoliumangqizhi/p/new List<DataTreeNode>(); data.Add(node1); data.Add(node11); data.Add(node111); treeList1.DataSource = data; treeList1.RefreshDataSource(); }
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