Typica/config/Windows/cuppingitemselection.xml

<window id="sampleitemselection">
    <layout type="grid">
        <row>
            <column colspan="5">
                <label>Add Existing Item to Cupping Session</label>
            </column>
        </row>
        <row>
            <column>
                <label>Category:</label>
            </column>
            <column>
                <sqldrop data="0" display="0" showdata="false" id="category">
                    <query>SELECT DISTINCT category FROM items WHERE category LIKE 'Coffee:%'</query>
                </sqldrop>
            </column>
            <column>
                <label>Item:</label>
            </column>
            <column>
                <sqldrop data="0" display="1" showdata="true" id="item" />
            </column>
            <column>
                <button type="push" name="Add Item" id="additem" />
            </column>
        </row>
        <row>
            <column colspan="5">
                <label>Add New Item to Cupping Session</label>
            </column>
        </row>
        <row>
            <column>
                <label>Item:</label>
            </column>
            <column colspan="3">
                <line id="itemname" />
            </column>
            <column column="4">
                <button type="push" name="New Item" id="newitem" />
            </column>
        </row>
    </layout>
    <program>
        <![CDATA[
            var categorydrop = findChildObject(this, 'category');
            var itemdrop = findChildObject(this, 'item');
            var q = "SELECT id, name FROM items WHERE category = '";
            q = q + categorydrop.currentText;
            q = q + "' ORDER BY name";
            itemdrop.addSqlOptions(q);
            categorydrop['currentIndexChanged(QString)'].connect(function(arg) {
                itemdrop.clear();
                q = "SELECT id, name FROM items WHERE category = '";
                q = q + arg;
                q = q + "' ORDER BY name";
                itemdrop.addSqlOptions(q);
            });
        ]]>
    </program>
</window>