c# - 如何更改组合框控件中的下拉按钮？

Question

如何更改 ComboBox 控件中的下拉按钮(C#、Windows 窗体)？我有一个自定义按钮，我想在 ComboBox 中使用它，而不是默认的下拉按钮。

Answer 1

我认为 Hans Passant 解决方案就是这样......

从这里开始:

http://social.msdn.microsoft.com/forums/en-US/winformsdesigner/thread/5d65f987-834c-465f-a944-622831d4cfb0

You can create a UserControl, drag a ComboBox and a Button onto it, make the Button right over the ComboBox's arrow button to make the arrow button invisible, handle the Button's Paint event to draw an arrow on it, this can be done by calling ComboBoxRenderer.DrawDropDownButton() method (Notice: this method has a limit, it needs the visual style being enabled on the OS) or by drawing an icon on it, or just drawing a small triangle on it. Then handle the Click event of the button to show the ComboBox's DropDown, this can be done by something like this

    private void button1_Click(object sender, EventArgs e)
    {
        this.comboBox1.DroppedDown = true;
    }