如何使用KeyeventHandler捕获空格键的按下事件? [英] How to capture the spacebar press event using KeyeventHandler?

问题描述

我有一个带有富文本框的表单，我想在其中执行以下操作:

I have a Form with a rich text box in which i want to do the following:

当用户按下空格键时(当前我正在执行keydown事件，但想使用按键事件，但不提供e.keycode)，应调用一个函数，在该函数中应实现以下逻辑:

When user presses the spacebar button (Currently i am doing it with keydown event but want to use key press event but it doesn't provide e.keycode), a function should be called in which this logic is to be implemented:

要提取最后一个单词并在富文本框的文本中循环，以便在富文本框中找到其出现的次数.

last written word is to be fetched and is to be looped through the text of rich text box in order to find its number of occurrences in a rich text box.

到目前为止，我所做的是:

What i have done so far is:

private void textContainer_rtb_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.KeyCode == Keys.Space)
        {
            String abc = this.textContainer_rtb.Text.Split(' ').Last();
            chkWordRepeat(abc);
        }
    }
public void chkWordRepeat(String lastWordToFind)
    {
        int count = new Regex(lastWordToFind).Matches(this.textContainer_rtb.Text.Split(' ').ToString()).Count;
        MessageBox.Show("Word: " + lastWordToFind + "has come: " + count + "times");
    }

请让我知道上面提到的逻辑是否正确，如何将这个逻辑与空格键的按下事件关联起来?如果没有，请帮助我实施！

Please let me know if the above mentioned logic is correct or not And how can i attach this logic with key press event for spacebar? If not then please help me implementing!

谢谢.

推荐答案

    private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == ' ')
            MessageBox.Show("space pressed");
    }

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