Displaying Drop Down Field Conditionally

Question

I am learning Appian now. In my UI, secondColumnContents contains 3 dropdownFields. But one of dropdownFields only be displayed under one condition. How can I display this dropdownField under the condition. So, the UI may display 3 dropdownFields if the condition is satisfied. Otherwise, it will display 2 dropdownFields. Could any one show me an example. Thanks. 
 OriginalPostID-221194 
 OriginalPostID-221194

angelak546 · Answer

You can use the showWhen on the third drop down component. Within the showWhen expression, use an if() statement. 
 
if ( 
/*checking if both conditions are true */ 
and(ri!selectedFirstConditionsIsTrue, ri!selectedSecondConditionisTrue), 
/*show*/ 
true, 
/*otherwise, don't show*/ 
false 
)

Anuya Girwalkar · Answer

You can use the if condition or you can also use the showWhen property of dropdown field.

gurdeeps · Answer

Hi, Use if() here to display dropdown accordingly