如何编写鼠标在 TextBox 中滚动时发生的事件?

How can I Write an Event that Happens when Mouse Scrolls in TextBox?(如何编写鼠标在 TextBox 中滚动时发生的事件?)

问题描述

我想在鼠标滚动时更改文本框的数量.
我有一个滚动文本框，但我不想使用它.有与此相关的事件吗?我应该写一个 TextBox 事件吗?如果是，如何编写鼠标滚动时发生的文本框事件?

I wanna change the number of the TextBox when The Mouse Scrolls.
I have a Scroll TextBox But I Don't wanna use that. Is There any Event related to this? Should I write an TextBox Event? If yes, How can I write a textBox event that Happens when Mouse Scrolls?

推荐答案

MouseWheel 事件就在那里:

public Form1()
{
    InitializeComponent();
    textBox1.MouseWheel += textBox1_MouseWheel;
}

void textBox1_MouseWheel(object sender, MouseEventArgs e)
{
    throw new NotImplementedException();
}

但它在事件编辑器中不可见.不知道为什么..

But it is not visible in the event editor. No idea why..

您可以通过 Intellisense 找到完整的事件列表，如下所示:

You can find the full list of events through Intellisense like this:

输入控件的名称和一个点.现在观看您需要的事件的下拉列表.当你有它写 += 添加按 Tab 两次.这会连接事件并为其创建一个存根.

Enter the Control's name and a dot. Now watch the dropdownlist for the event you need. When you have it write += add press Tab twice. This hooks up the event and creates a stub for it.

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