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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