#region
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using System;
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using System.Data;
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using System.Windows.Forms;
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using CSFrameworkV5.Common;
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using CSFrameworkV5.Core;
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using DevExpress.XtraTreeList;
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using DevExpress.XtraTreeList.Nodes;
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#endregion
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namespace CSFrameworkV5.Library.CommonClass
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{
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/// <summary>
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/// TreeList样式的表格
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/// </summary>
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public class DevTreeListView : ISummaryView
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{
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private TreeList _TreeList;
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/// <summary>
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/// DevTreeListView的构造器
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/// </summary>
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/// <param name="treeList"></param>
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public DevTreeListView(TreeList treeList)
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{
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_TreeList = treeList;
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}
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/// <summary>
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/// DevTreeListView的构造器
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/// </summary>
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/// <param name="treeList">TreeList组件</param>
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/// <param name="boundContextMenu">绑定弹出菜单,展开和收缩</param>
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public DevTreeListView(TreeList treeList, bool boundContextMenu)
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{
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_TreeList = treeList;
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if (boundContextMenu) _TreeList.ContextMenu = CreateContextMenu();
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}
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/// <summary>
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/// 勾选或取消勾选当前结点的所有父结点
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/// </summary>
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/// <param name="currentNode">当前结点</param>
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public static void CheckParent(TreeListNode currentNode, bool isCheck)
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{
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var tmp = currentNode;
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currentNode = tmp.ParentNode;
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while (currentNode != null)
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{
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currentNode.Checked = isCheck;
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currentNode = currentNode.ParentNode;
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}
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//设置所有父节点的状态，当父结点的所有子结点没有勾选的情况下，父结点不勾选
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currentNode = tmp.ParentNode;
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while (currentNode != null)
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{
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if (HasChildChecked(currentNode) == false)
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currentNode.Checked = false;
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currentNode = currentNode.ParentNode;
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}
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}
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private ContextMenu CreateContextMenu()
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{
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var menu = new ContextMenu();
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menu.MenuItems.Add("展开树结点", OnExpandAll);
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menu.MenuItems.Add("收缩全部", OnCollapseAll);
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return menu;
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}
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/// <summary>
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/// 检查当前结点是否有子节点是勾选状态
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/// </summary>
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/// <param name="node"></param>
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/// <returns></returns>
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public static bool HasChildChecked(TreeListNode node)
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{
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if (node.HasChildren)
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foreach (TreeListNode N in node.Nodes)
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if (N.Checked)
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return true;
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return false;
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}
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private void OnCollapseAll(object sender, EventArgs e)
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{
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_TreeList.CollapseAll();
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}
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private void OnExpandAll(object sender, EventArgs e)
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{
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_TreeList.ExpandAll();
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}
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/// <summary>
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/// 设置TreeList显示的图标
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/// </summary>
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/// <param name="tl">TreeList组件</param>
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/// <param name="node">当前结点，从根结构递归时此值必须=null</param>
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/// <param name="nodeIndex">根结点图标(无子结点)</param>
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/// <param name="parentIndex">有子结点的图标</param>
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public static void SetImageIndex(TreeList tl, TreeListNode node,
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int nodeIndex, int parentIndex)
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{
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if (node == null)
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{
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foreach (TreeListNode N in tl.Nodes)
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SetImageIndex(tl, N, nodeIndex, parentIndex);
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}
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else
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{
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if (node.HasChildren || node.ParentNode == null)
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{
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//node.SelectImageIndex = parentIndex;
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node.StateImageIndex = parentIndex;
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node.ImageIndex = parentIndex;
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}
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else
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{
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//node.SelectImageIndex = nodeIndex;
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node.StateImageIndex = nodeIndex;
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node.ImageIndex = nodeIndex;
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}
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foreach (TreeListNode N in node.Nodes)
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SetImageIndex(tl, N, nodeIndex, parentIndex);
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}
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}
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#region ISummaryView 成员
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public void ExportData(string format, string file)
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{
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Msg.Warning("未实现ExportData方法!");
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}
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public int RowCount => (_TreeList.DataSource as DataTable).Rows.Count;
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public int FocusedRowHandle
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{
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get => _TreeList.FocusedNode.Id;
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set
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{
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var node = FindNode(value);
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_TreeList.SetFocusedNode(node);
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}
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}
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private TreeListNode FindNode(int rowIndex)
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{
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TreeListNode result = null;
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foreach (TreeListNode n in _TreeList.Nodes)
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{
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if (n.Id == rowIndex) return n;
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if (n.Nodes.Count > 0) FindChildNode(n, rowIndex, ref result);
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}
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return result;
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}
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private void FindChildNode(TreeListNode root, int rowIndex,
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ref TreeListNode result)
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{
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foreach (TreeListNode n in root.Nodes)
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{
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if (n.Id == rowIndex) result = n;
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if (n.Nodes.Count > 0) FindChildNode(n, rowIndex, ref result);
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}
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}
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public object DataSource
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{
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get => _TreeList.DataSource;
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set => _TreeList.DataSource = value;
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}
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public object View => _TreeList;
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public DataRow GetDataRow(int rowHandle)
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{
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var source = _TreeList.DataSource as DataTable;
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return source.Rows[rowHandle];
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}
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public void RefreshDataSource()
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{
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var o = _TreeList.DataSource;
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_TreeList.DataSource = null;
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_TreeList.DataSource = o;
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_TreeList.RefreshDataSource();
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_TreeList.Invalidate();
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}
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public void BindingDoubleClick(EventHandler eventHandler)
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{
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_TreeList.DoubleClick += eventHandler;
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}
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public void SetFocus()
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{
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_TreeList.Focus();
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}
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public void MoveFirst()
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{
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_TreeList.MoveFirst();
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}
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public void MovePrior()
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{
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_TreeList.MovePrev();
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}
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public void MoveNext()
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{
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_TreeList.MoveNext();
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}
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public void MoveLast()
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{
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_TreeList.MoveLast();
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}
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public bool IsValidRowHandle(int rowHandle)
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{
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return rowHandle >= 0 && rowHandle <=
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(_TreeList.DataSource as DataTable).Rows.Count;
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}
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public void RefreshRow(int rowHandle)
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{
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_TreeList.Invalidate();
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}
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public void RemoveRow(int rowHandle)
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{
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var N = _TreeList.GetNodeByVisibleIndex(rowHandle);
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_TreeList.DeleteNode(N);
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}
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#endregion
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}
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}
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