如何取消选中树视图中的节点 [英] how to uncheck nodes in treeview

问题描述

大家好.
如何在Treeview控件中取消选中子节点以及基于子子节点..

hi to all..
how to uncheck the childnodes and based on sub childnodes also in treeview control..
if any body knows pls let me know.

推荐答案

尝试以下代码.

Try out the below code.

protected void treeview_UncheckAll1(TreeView tv)
        {
            TreeNode myNode = tv.SelectedNode;
            myNode.Checked = true;
            TreeNode root = tv.Nodes[0];
            foreach (TreeNode level1 in root.ChildNodes)
            {
                foreach (TreeNode level2 in level1.ChildNodes)
                {
                    level2.ImageUrl = "";
                    level2.Checked = false;

                    foreach (TreeNode level3 in level2.ChildNodes)
                    {
                        level3.ImageUrl = "";
                        level3.Checked = false;
                    }
                }
            }
        }

内部循环取决于您拥有的树视图的深度.
如果尚未检查，则需要检查myNode null编码.

The inner loop depends on the depth of the treeview you have.
You need to check for the myNode null codition if non been check.

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