TabControl 中的 C# Tab 切换

问题描述

我正面临这样的问题，我觉得很难克服.在 WinForms 中，我得到了一个带有 n 个 TabPages 的 TabControl.我想扩展 Ctrl+Tab/Ctrl+Shift+Tab 切换.所以我写了一些代码，只要焦点在 TabControl 或 Form 上就可以正常工作.当应用程序焦点位于 TabPage 内部时(例如，位于 TabPage 内部的按钮上)，按下 Ctrl+Tab 时，我的代码将被忽略，并且 TabControl 会自行跳到 TabPage(避免我的代码).

Iam facing such problem, which I find hard to overcome. In WinForms I got a TabControl with n TabPages. I want to extend the Ctrl+Tab / Ctrl+Shift+Tab switching. so I wrote some code which works fine as long as the focus is on TabControl or on the Form. When application focus is INSIDE of TabPage (for example on a button which is placed inside of TabPage), while pressing Ctrl+Tab, my code is ignored and TabControl skips to TabPage on his own (avoiding my code).

有人知道吗?

推荐答案

您需要从 TabControl 派生并覆盖 ProcessCmdKey，虚拟方法才能覆盖 Ctrl-Tab 行为.

You need to derive from TabControl and override ProcessCmdKey, virtual method in order to override the Ctrl-Tab behavior.

例子:

public class ExtendedTabControl: TabControl
{
    protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
    {
        if (keyData == (Keys.Control | Keys.Tab))
        {
            // Write custom logic here
            return true;
        }
        if (keyData == (Keys.Control | Keys.Shift | Keys.Tab))
        {
            // Write custom logic here, for backward switching
            return true;
        }
        return base.ProcessCmdKey(ref msg, keyData);
    }
}

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