<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>2 Dropdowns state and county, on changing state no issue. but selecting county and changing state is issue!</title><link>https://community.appian.com/discussions/f/general/20155/2-dropdowns-state-and-county-on-changing-state-no-issue-but-selecting-county-and-changing-state-is-issue</link><description>Hi All, 
 I have state and county drop downs when changed states loading respective county in 2nd dropdown i.e.county dropdown. 
 When i selected county value and tried change state value, getting error as - 
 intterface Definition: Expression evaluation</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: 2 Dropdowns state and county, on changing state no issue. but selecting county and changing state is issue!</title><link>https://community.appian.com/thread/78760?ContentTypeID=1</link><pubDate>Tue, 05 Jan 2021 17:15:36 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:245a1cb0-06e4-45e5-9ae7-48c8047581a6</guid><dc:creator>Peter Lewis</dc:creator><description>&lt;p&gt;If you haven&amp;#39;t seen it already, the documentation page on &lt;a href="https://docs.appian.com/suite/help/latest/recipe-configure-cascading-dropdowns.html"&gt;Cascading Dropdowns&lt;/a&gt; is pretty similar to what you&amp;#39;re doing here. The main tricky part is that if your county depends on the state, you always need to clear out the selected county when a different state is selected (and that&amp;#39;s what he other poster suggested here).&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: 2 Dropdowns state and county, on changing state no issue. but selecting county and changing state is issue!</title><link>https://community.appian.com/thread/78748?ContentTypeID=1</link><pubDate>Mon, 04 Jan 2021 13:49:13 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:59e56b1c-11b4-476e-a10a-e1711d54e41a</guid><dc:creator>Harshit Bumb (Appyzie)</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;I think you are not using a!save() function in the correct way. Try replacing your a!save() function with this&lt;/p&gt;
&lt;p&gt;&lt;span&gt;a!save(ri!PTS.County,null)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;And this should solve the problem.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Thanks,&lt;br /&gt;Harshit&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>