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Treelist当显示复选框后，父级和子级的复选框没有关联，使用过程中很不便,如图所示
自己给treelist添加父子级联动
/// <summary> /// 初始化TreeList，父子节点选择关联 /// </summary> public class TreeListInitial { TreeList Tree; /// <summary> /// 初始化TreeList，父子节点选择关联 /// </summary> /// <param name="tree"></param> public TreeListInitial(TreeList tree) { Tree = tree; tree.BeforeCheckNode += tree_BeforeCheckNode; tree.AfterCheckNode += tree_AfterCheckNode; } public bool AllowCheck = true; public void tree_AfterCheckNode(object sender, DevExpress.XtraTreeList.NodeEventArgs e) { SetCheckedChildNodes(e.Node, e.Node.CheckState); SetCheckedParentNodes(e.Node, e.Node.CheckState); } void tree_BeforeCheckNode(object sender, DevExpress.XtraTreeList.CheckNodeEventArgs e) { e.CanCheck = AllowCheck; e.State = (e.PrevState == CheckState.Checked ? CheckState.Unchecked : CheckState.Checked); } public void SetNodeCheckState(TreeListNode node, CheckState checkState) { Tree.SetNodeCheckState(node, CheckState.Checked); SetCheckedChildNodes(node, CheckState.Checked); SetCheckedParentNodes(node, CheckState.Checked); } void SetCheckedChildNodes(TreeListNode node, CheckState check) { for (int i = 0; i < node.Nodes.Count; i++) { node.Nodes[i].CheckState = check; SetCheckedChildNodes(node.Nodes[i], check); } } void SetCheckedParentNodes(TreeListNode node, CheckState check) { if (node.ParentNode != null) { bool b = false; CheckState state; for (int i = 0; i < node.ParentNode.Nodes.Count; i++) { state = (CheckState)node.ParentNode.Nodes[i].CheckState; if (!check.Equals(state)) { b = !b; break; } } node.ParentNode.CheckState = b ? CheckState.Indeterminate : check; SetCheckedParentNodes(node.ParentNode, check); } } }
在窗体加载的时候传入需要联动的treelist实例化即可
new TreeListInitial(tree_Module)
效果图：
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原文地址：http://www.cnblogs.com/GarsonZhang/p/4897108.html
