場景

Winform控件-DevExpress18下載安裝注冊以及在VS中使用：

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

在上面已經實現DevExpress的安裝之后，拖拽一個TreeList，然后怎樣給其設置數據源。

DevExpress的TreeList怎樣設置數據源，從實例入手：

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

參照上面進行設置數據源的過程。

如果要實現這樣單列的樹形結構應該怎樣設置參數以及數據源。

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注：

博客主頁：
https://blog.csdn.net/badao_liumang_qizhi
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實現

首先新建一個Winform程序，然后拖拽一個TreeList控件

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然后雙擊進入窗體的加載事件中，如果在別的地方設置數據源同理。

首先進行TreeList樣式等的設置

?#region 設置列頭、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;?????????????????????????????? //設置顯示焦點框treeList1.OptionsSelection.EnableAppearanceFocusedCell = false;????????????? //禁用單元格選中treeList1.OptionsSelection.EnableAppearanceFocusedRow = false;?????????????? //禁用正行選中#endregion#region 設置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;???? //設置樹線的樣式#endregion

然后設置其單列顯示???????????

#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窗體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窗體中顯示treeList1.Columns.Clear();treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { colNode });#endregion

注：

這里的FieldName 要與數據源中要顯示的屬性名相對應。

然后設置作為識別節點的主鍵字段，這里使用Id來區分標記每個節點；設置其父節點的標記屬性。

treeList1.KeyFieldName = "Id"; treeList1.ParentFieldName = "ParentId";

為了構建數據源，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數據源??????????

? 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霸道的程序猿";DataTreeNode node111 = new DataTreeNode();node111.Id = "3";node111.ParentId = "2";node111.NodeText = "1-1-1大量編程資源";List<DataTreeNode> data = new List<DataTreeNode>();data.Add(node1);data.Add(node11);data.Add(node111);

然后給TreeList設置數據源

treeList1.DataSource = data; treeList1.RefreshDataSource();

最終完整的窗體加載方法代碼?

private void Form1_Load(object sender, EventArgs e){#region 設置列頭、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;?????????????????????????????? //設置顯示焦點框treeList1.OptionsSelection.EnableAppearanceFocusedCell = false;????????????? //禁用單元格選中treeList1.OptionsSelection.EnableAppearanceFocusedRow = false;?????????????? //禁用正行選中#endregion#region 設置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;???? //設置樹線的樣式#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窗體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窗體中顯示treeList1.Columns.Clear();treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { colNode });#endregiontreeList1.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霸道的程序猿";DataTreeNode node111 = new DataTreeNode();node111.Id = "3";node111.ParentId = "2";node111.NodeText = "1-1-1大量編程資源";List<DataTreeNode> data = new List<DataTreeNode>();data.Add(node1);data.Add(node11);data.Add(node111);treeList1.DataSource = data;treeList1.RefreshDataSource();}

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