如何在最后一个树视图中添加Treenode [英] How Do I Add A Treenode At The Last Of Tree View
问题描述
我通过从调用方法中获取每个节点,在方法中添加treeview节点。但是在循环中,我得到一个文本为其他的节点。
我想将此节点添加到树视图中,但它应显示为最后一个后代。 br $> b $ b
如何实现这一目标?任何帮助
Yash35写道:m_oTree.Nodes.Find(oNode.ParentKey,true)[0] .Nodes.Add( oNode.Key,oNode.DisplayText,ReturnImageListIndex(oNode),ReturnImageListIndex(oNode));
我正在使用上面的代码行向treeview添加节点。
它是Windows窗体。我希望它是其父节点的最后一个后代,即根节点。
我的树有一个根节点在WinForm中,Microsoft TreeView没有TreeNode的.ParentKey属性,someNode.Parent.Key也是一个错误。
虽然有可能你有分类TreeNode,并添加了'ParentKey字段......我对此表示怀疑。
如果您的设计中有一个根节点,那么为什么不保留指向根节点的节点集合的指针;那么,你可以肯定,如果你使用'Add on the collection,你添加的TreeNode将是TreeView中的最后一个TreeNode// 在表单范围中创建变量
private TreeNodeCollection rootNodes;
// 在应用程序代码的方法中:
// 在创建根节点的地方,
// 例如:在表单中加载EventHandler
private void YourForm_Load( object sender,EventArgs e)
{
rootNodes = yourTreeView.Nodes;
// 其他......
}
// 使用'rootNodes的示例:
// :
private < span class =code-keyword> void someAddTreeNodeMethod( string nodeText)
{
rootNodes.Add( new TreeNode(nodeText));
// 做正确的事情来设置它的ImageList指针等。
}
Hi,
I am adding nodes for treeview in a method by getting each node from a calling method. But while in loop i get a node whose text is "Other".
I want to add this node as well to treeview but it should display as last descendant.
How to i achieve this? Any help
Yash35 wrote:m_oTree.Nodes.Find(oNode.ParentKey, true)[0].Nodes.Add(oNode.Key, oNode.DisplayText, ReturnImageListIndex(oNode), ReturnImageListIndex(oNode)); i am adding nodes to treeview with above line of code. it is windows forms. I want it to be last descendant of its parent node i.e root node. My tree has a single root nodeIn the WinForm Microsoft TreeView there is no .ParentKey property of a TreeNode, and someNode.Parent.Key would be an error, also.
While it is possible you have sub-classed TreeNode, and added a 'ParentKey field ... I doubt that.
If you have a single root node in your design, then why not keep a pointer to the Nodes Collection of the root node; then, you can be certain that if you use 'Add on that collection, the TreeNode you add will be the last TreeNode in the TreeView// create a variable in Form scope private TreeNodeCollection rootNodes; // in a method in your application code: // at a place where the root-node has been created, // for example: in the Form Load EventHandler private void YourForm_Load(object sender, EventArgs e) { rootNodes = yourTreeView.Nodes; // whatever else ... } // example of using 'rootNodes: // in some method: private void someAddTreeNodeMethod(string nodeText) { rootNodes.Add(new TreeNode(nodeText)); // do the right thing to set its ImageList pointer, etc. }
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