Question

如何获得c#中右击弹出菜单时对应的当前所右击那个treenode

Answer 1

除了右键部分，其他均为MSDN代码，单击节点右键，可对其编辑。

TreeNode clickNode;
private void treeView1_MouseDown(object sender, MouseEventArgs e)
{
clickNode = treeView1.GetNodeAt(e.X, e.Y);

}
private void treeView1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
treeView1.SelectedNode = clickNode;
treeView1.LabelEdit = true;
clickNode.BeginEdit();
}
}
private void treeView1_AfterLabelEdit(object sender, NodeLabelEditEventArgs e)
{
if (e.Label != null)
{
if (e.Label.Length > 0)
{
if (e.Label.IndexOfAny(new char[] { '@', '.', ',', '!' }) == -1)
{
e.Node.EndEdit(false);
}
else
{
/* Cancel the label edit action, inform the user, and
place the node in edit mode again. */
e.CancelEdit = true;
MessageBox.Show("Invalid tree node label.\n" +
"The invalid characters are: '@','.', ',', '!'",
"Node Label Edit");
e.Node.BeginEdit();
}
}
else
{
/* Cancel the label edit action, inform the user, and
place the node in edit mode again. */
e.CancelEdit = true;
MessageBox.Show("Invalid tree node label.\nThe label cannot be blank",
"Node Label Edit");
e.Node.BeginEdit();
}
this.treeView1.LabelEdit = false;
}
}