c# winform如何屏蔽键盘上下左右键

重写事件：

protected override bool ProcessDialogKey(Keys keyData)
{
if (keyData == Keys.Up || keyData == Keys.Down ||
keyData == Keys.Left || keyData == Keys.Right)
return false;
else
return base.ProcessDialogKey(keyData);
}

c# winform如何屏蔽键盘上下左右键

原文：http://www.cnblogs.com/zengzhaojin/p/4964447.html