Dropdown

See the DropdownDemo class.

public void Draw()
{
    Gui.Heading("Dropdown");
    // Pass the selected enum as the argument.
    Gui.Dropdown(ref sampleEnum1);
    Gui.Dropdown(items1, ref selectedIndex1);

    // Multiple selections possible
    Gui.Dropdown(ref sampleFlagEnum);

    Gui.Heading("LabelDropdown");
    Gui.LabelDropdown("with label", items1, ref selectedIndex1);
    Gui.LabelDropdown("with label", ref sampleEnum2);

    Gui.Heading("InputDropdown");
    Gui.InputDropdown(items1, ref selectedIndex1);
    Gui.InputDropdown(ref sampleEnum2);

    // The items will be scrolled because their total height is greater than MaxHeights.
    using (Style.Dropdown.MaxHeights.Begin(100))
        Gui.InputDropdown(items2, ref selectedIndex2);
}

enum SampleEnum
{
    Element0,
    Element1,
    Element2
}

// If FlagsAttribute is attached, multiple selection is possible.
[Flags]
enum SampleFlagEnum
{
    Element0 = 0,
    Element1 = 1 << 0,
    Element2 = 1 << 1,
    Element3 = 1 << 2,
    Element4 = 1 << 3,
}