場景 Winform控制項-DevExpress18下載安裝註冊以及在VS中使用： https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100061243 DevExpress的TreeList怎樣設置數據源，從實例入手： https:/ ...
場景
Winform控制項-DevExpress18下載安裝註冊以及在VS中使用：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100061243
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
實現了樹形結構後，我們要實現在樹形節點上點擊右鍵時彈窗，彈窗確認之後實現將當前節點刪除。
註：
博客主頁：
https://blog.csdn.net/badao_liumang_qizhi
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實現
這裡在窗體載入完的事件里綁定Treelist的滑鼠點擊事件。
this.treeList2.MouseClick += treeList2_MouseClick;
在事件方法中
private void treeList2_MouseClick(object sender, MouseEventArgs e) { //獲取當前TreeList對象 DevExpress.XtraTreeList.TreeList treeList = sender as DevExpress.XtraTreeList.TreeList; if (treeList != null && treeList.Selection.Count == 1) { object idValue = null; string strIdValue = String.Empty; DataTreeNode nodeData = null; //通過TreeList的DataSource屬性獲取所有節點的List List<DataTreeNode> datasource = treeList.DataSource as List<DataTreeNode>; if (datasource != null) { //獲取選中節點的集合中第一個的Id屬性 idValue = treeList.Selection[0].GetValue("Id"); strIdValue = idValue.ToString(); //獲取當前選中節點DataTreeNode對象 nodeData = datasource.Where<DataTreeNode>(p => p.Id == strIdValue).FirstOrDefault<DataTreeNode>(); if (nodeData != null) { //獲取或設置是否啟用聚焦節點的外觀設置 -啟用整行選中 treeList.OptionsSelection.EnableAppearanceFocusedRow = true; //啟用整行選中 #region 右鍵彈出上下文菜單 - 刪除待比較的文件 //如果點擊的是滑鼠右鍵 if (e.Button == System.Windows.Forms.MouseButtons.Right) { //構建右鍵菜單 System.Windows.Forms.ContextMenu ctxMenu = new System.Windows.Forms.ContextMenu(); //構建右鍵刪除菜單項 System.Windows.Forms.MenuItem mnuDelete = new System.Windows.Forms.MenuItem(); mnuDelete.Text = "刪除當前文件"; //刪除菜單項點擊事件訂閱 mnuDelete.Click += delegate(object s, EventArgs ea) { //DevExpress的對話框 DialogResult dialogResult = DevExpress.XtraEditors.XtraMessageBox.Show(String.Format("確定要刪除此實驗數據嗎[{0}]？\r\n刪除後無法恢復!", nodeData.Id), "標題", System.Windows.Forms.MessageBoxButtons.YesNo, MessageBoxIcon.Question); //如果點擊了Yes if (dialogResult == DialogResult.Yes) { try { string fileName = String.Empty; #region 刪除對應的樹節點 //通過設置主鍵ID找到節點node DevExpress.XtraTreeList.Nodes.TreeListNode selectedNode = treeList.FindNodeByKeyID(nodeData.Id); if (selectedNode != null) { //刪除節點 this.treeList2.Nodes.Remove(selectedNode); } #endregion //禁用整行選中 treeList.OptionsSelection.EnableAppearanceFocusedRow = false; } catch (Exception ex) { ICSharpCode.Core.LoggingService<DataTreeListHelper>.Error("刪除實驗數據異常:" + ex.Message, ex); DevExpress.XtraEditors.XtraMessageBox.Show("刪除實驗數據異常:" + ex.Message, "標題",MessageBoxButtons.OK, MessageBoxIcon.Error); } } }; ctxMenu.MenuItems.Add(mnuDelete); ctxMenu.Show(treeList, new System.Drawing.Point(e.X, e.Y)); } #endregion return; } } treeList.OptionsSelection.EnableAppearanceFocusedRow = false; //禁用整行選中 } }
具體註釋見代碼。
