[C＃]如何阅读已持有的密钥。 [英] [C#] How to read a key which has held.

问题描述

你好，我有一个问题。有了这些代码，一切都没问题，但是当我按下一个键时。

就像A + A + A +一样，它一直按下键多次。

如何获得A +而不是A + A + A +？

Hello , I've got a question. With those codes everything is alright but when I hold down a key.
It goes like "A+A+A+" It keeps pressing the key multiple times.
How do I get "A+" instead of "A+A+A+"?

private void gridView1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode >= Keys.A && e.KeyCode <= Keys.Z)
            {
              
                gridView1.GetFocusedDataRow()["Shortcut"] =gridView1.GetFocusedDataRow()["Shortcut"]+ e.KeyCode.ToString()+"+";
            }

        }

推荐答案

这是预期的行为：它叫Autorepeat并且这正是假设发生的事情，因此您的用户可以按住一个键并获取它的多个实例：例如按住连字符按钮并获得一行破折号。



如果你想停止它，你还需要处理KeyUp事件并自己动手。可能有点乱，特别是如果他们用鼠标移动到其他地方并回来......

That is the expected behaviour: it's call "Autorepeat" and it is exactly what is suppose to happen, so your user can hold down a key and get multiple instances of it: like holding down the "hyphen" button and getting a row of dashes.

If you want to stop it, you will need to handle the KeyUp event as well and do it yourself. Might be a little messy, particularly if they use the mouse to move elsewhere and come back...

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