将键盘选择与列表框中的SelectedItem同步

尝试在列表框容器中的所需事件发生后(加载时等)调用列表框上的自定义焦点设置函数(focusex)。

internal static class ControlExt
{
    // Extension for Control
    internal static bool FocusEx(this Control control)
    {
        if (control == null)
            return false;

        bool success = false;
        if (control == FocusManager.GetFocusedElement())
            success = true;
        else
        {
            // To get Focus() to work properly, call UpdateLayout() immediately before
            control.UpdateLayout();
            success = control.Focus();
        }

        ListBox listBox = control as ListBox;
        if (listBox != null)
        {
            if (listBox.SelectedIndex < 0 && listBox.Items.Count > 0)
                listBox.SelectedIndex = 0;
        }

        return success;
    }
}

这对你很有用。

祝你好运,
吉姆麦克寇迪
YinYangMoney