摘要：
关于 Ｃ# System.Windows.Forms.NumericUpDown 控件，如何禁用鼠标中间键？方法如下：声明一个事件：Num_DiscountAmount.MouseWheel +=new MouseEventHandler(Num_DiscountAmount_MouseWheel);编写一个事件private void Num_DiscountAmount_MouseWheel(object sender, MouseEventArgs e) { HandledMouseEventArgs h = e as HandledMouseEve... 阅读全文