/indra/newview/skins/default/xui/en/floater_test_combobox.xml

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<floater
 legacy_header_height="18"
 can_resize="true"
 height="400"
 layout="topleft"
 name="floater_test_combobox"
 help_topic="floater_test_combobox"
 translate="false"
 width="400">
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left="10"
     top="24"
     width="200">
        Real world usage (login location):
    </text>
    <combo_box
     allow_text_entry="true"
     control_name="LoginLocation"
     follows="left|bottom"
     height="18"
     layout="topleft"
     left_delta="0"
     max_chars="128"
     name="start_location_combo"
     top_pad="2"
     width="155">
        <combo_box.item
         label="My Last Location"
         name="MyLastLocation"
         value="last" />
        <combo_box.item
         label="My Home"
         name="MyHome"
         value="home" />
        <combo_box.item
         label="&lt;Type region name&gt;"
         name="Typeregionname"
         value="" />
    </combo_box>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="24"
     width="200">
        Minimal combobox:
    </text>
    <combo_box
     height="18"
     layout="topleft"
     left_delta="0"
     name="minimal_combo"
     top_pad="2"
     width="150">
        <combo_box.item
         label="First Item"
         name="item1"
         value="first" />
        <combo_box.item
         label="Second Item"
         name="item2"
         value="second" />
    </combo_box>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="24"
     width="200">
        Allow text input:
    </text>
    <combo_box
     allow_text_entry="true"
     height="18"
     layout="topleft"
     left_delta="0"
     name="text_entry_combo"
     top_pad="2"
     width="150">
        <combo_box.item
         label="First Item"
         name="item1"
         value="first" />
        <combo_box.item
         label="Second Item"
         name="item2"
         value="second" />
    </combo_box>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="24"
     width="200">
        Allow text input, default to second item:
    </text>
    <combo_box
     allow_text_entry="true"
     height="18"
     initial_value="second"
     layout="topleft"
     left_delta="0"
     name="text_entry_combo2"
     top_pad="2"
     width="150">
        <combo_box.item
         label="First Item"
         name="item1"
         value="first" />
        <combo_box.item
         label="Second Item"
         name="item2"
         value="second" />
    </combo_box>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="24"
     width="200">
        Two character max input:
    </text>
    <combo_box
     allow_text_entry="true"
     height="16"
     layout="topleft"
     left_delta="0"
     max_chars="2"
     name="state_combo"
     top_pad="4"
     width="150">
        <combo_box.item
         label="CA"
         name="item1"
         value="ca" />
        <combo_box.item
         label="NY"
         name="item2"
         value="ny" />
        <combo_box.item
         label="TX"
         name="item3"
         value="tx" />
    </combo_box>
</floater>