Winform中双击DevExpress的TreeList的树形节点怎样获取当前节点

本是古典何须时尚 2023-10-08 09:26 19阅读 0赞

## 场景 ##

DevExpress的TreeList怎样设置数据源，从实例入手：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/102548490][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_102548490]

鼠标双击TreeList中的某一节点，在双击事件中怎样获取当前节点。

注：

博客主页：  
[https://blog.csdn.net/badao\_liumang\_qizhi][https_blog.csdn.net_badao_liumang_qizhi]  
关注公众号  
霸道的程序猿  
获取编程相关电子书、教程推送与免费下载。

## 实现 ##

### 双击事件绑定 ###

treeList.MouseDoubleClick += treeList_MouseDoubleClick_InOne;

### 双击事件中 ###

将sender作为treeList，再将treeList的数据源取出，是一个节点的List。

然后获取当前选中的树形节点的Id属性

通过linq表达式获取与Id想对应的节点，进而获取节点对象。

示例代码：

private static void treeList_MouseDoubleClick_InOne(object sender, System.Windows.Forms.MouseEventArgs e)
            {
                if (e.Button == System.Windows.Forms.MouseButtons.Left)
                {
                    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;
                        List<DataTreeNode> datasource = treeList.DataSource as List<DataTreeNode>;
                        if (datasource != null)
                        {
                            idValue = treeList.Selection[0].GetValue("Id");
                            strIdValue = idValue.ToString();
                            nodeData = datasource.Where<DataTreeNode>(p => p.Id == strIdValue).FirstOrDefault<DataTreeNode>();
                            if (nodeData != null)
                            {
                               
                            }
                        }
                    }
                }
            }

其中DataTreeNode参考上面博客。

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_102548490]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/102548490
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi