ownerdrawcell()

Question

添加了
grid.OwnerDrawCell += new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo4);清除，只能用
grid.OwnerDrawCell -= new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo4);
这一种方法吗？还有没有别的其它方法？

Answer 1

treeView1_AfterSelect事件里有若干node,每个node都有自己的OwnerDrawCell重载
切换node时，如何清除？有没有整体清除的办法？if (treeView1.SelectedNode.Name == "节点1")
{
    grid.OwnerDrawCell += new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo1);
}if (treeView1.SelectedNode.Name == "节点2")
{
    grid.OwnerDrawCell += new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo2);
}if (treeView1.SelectedNode.Name == "节点2")
{
    grid.OwnerDrawCell += new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo2);
}......if (treeView1.SelectedNode.Name == "节点99")
{
    grid.OwnerDrawCell += new Grid.OwnerDrawCellEventHandler(clsDrawLine.rdo99);
}