private void m_propertyGrid_ValidatePropertyValue(object sender, ValidatePropertyValueEventArgs e)
{
if (e.PropertyName == "Name")
{
if (e.NewValue == null || NodeNameUtil.HasNameCollisionWithSiblings(m_propertyGrid.SelectedObject as Node, e.NewValue.ToString()))
{
// 未通过验证就撤销更改
e.Cancel = true;
e.Message = "该命名与当前父节点下的其他节点有冲突，请重新命名。";
}
}
}
