Dev Treelist控件显示行号

最新推荐文章于 2024-09-03 11:44:07 发布

最新推荐文章于 2024-09-03 11:44:07 发布 · 485 阅读

本文详细介绍了如何在 DevExpress TreeList 控件中自定义节点指示器，使其显示当前节点所在的行号。

        #region 显示行号
        private void treeList1_CustomDrawNodeIndicator(object sender, DevExpress.XtraTreeList.CustomDrawNodeIndicatorEventArgs e)
        {
            DevExpress.XtraTreeList.TreeList tmpTree = sender as DevExpress.XtraTreeList.TreeList;
            DevExpress.Utils.Drawing.IndicatorObjectInfoArgs args = e.ObjectArgs as DevExpress.Utils.Drawing.IndicatorObjectInfoArgs;
            if (args != null)
            {
                int rowNum = tmpTree.GetVisibleIndexByNode(e.Node) + 1;
                args.DisplayText = rowNum.ToString();
            }
            e.ImageIndex = -1; 
        }
        #endregion