在焦点位于文本框（在面板中）的同时，在自定义编辑器中滚动@ C＃

Question

following situation:

Custom Editor Control (with scrollbars) and a search function in a panel (textbox in panel). When having the focus on the textbox/panel it should be scrollable.

I already tried using override Scroll methodes but mostly the event isn't triggerd. There isn't even an event for scrolling in WinForms textboxes so i have no idea on how to catch it.

Any ideas / WinAPI hooks? Thanks

Answer 1

How do you want to scroll? By pressing PgUp and PgDn ? Catch the keys and do the scrolling yourself. If not, please explain exactly what user interaction(s) should cause the scrolling!

private void yourSearchTextBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.PageDown) scrollPgDn();
    if (e.KeyCode == Keys.PageUp) scrollPgUp();
    //..
}

Your scroll functions would either call custom editor methods or use some logic to do a reasonable scroll. You would set the focus on the editor before and set it back to your search textbox after the scrolling.