选择所有树状视图项目 [英] Select all the Tree View Items

问题描述

我正在C#2.0中使用带复选框的TreeView控件.
TreeView中有一些项目.
我的表单中有一个按钮控件.
我需要的是，当我单击按钮时，它应该选择树中存在的所有Node-checkBox(父节点和子节点).

I am Using TreeView Control in C# 2.0 with checkboxes.
There are some Items in the TreeView.
There is a Button Control in my form.
What I need is when I click the Button it should Select all the Node-checkBoxes present in tree(Parent as well as child nodes).

推荐答案

如果这是表格，例如，您可以遍历每个根节点并调用递归方法以检查该节点及其子节点.例如:

迭代:

If this is forms, you can for example iterate through each root node and call a recursive method to check that node and it''s children. For example:

Iteration:

foreach (TreeNode node in treeView1.Nodes) {
   CheckItems(node);
}

递归方法:

Recursive method:

private void CheckItems(TreeNode node) {
   node.Checked = true;
   foreach (TreeNode childNode in node.Nodes) {
      childNode.Checked = true;
      CheckItems(childNode);
   }
}

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