Populate Validation on text box

Question

Hey guys, I am exploring the validations stuff in the interface in appian. I have 2 text fieds in the interface, I have set up validation on the 2nd text box, if the 1st text box value is equals to Hi then I am showing a validtion on the 2nd text box. So here, If I enter Hi in the 1st text box then validation is showing up only when I enter something in the 2nd text box. 
 Validation was not showing whenever I enter Hi in the 1st text box and levaing the 2nd text box empty. Let me know If I am missing anything here. Thanks in advance.

Yashwanth Akula · Answer

Hi Hacker323671 The validation parameter will execute when the value is not null ( validations ( List of Text String ) : Validation errors to display below the field when the value is not null.) So to execute the second textFiled validation parameter when the first textField value is "Hi", you need to store some value in the second textField variable while entering the data into the first TextField . 
 but i don't think this is the right way, because I'm storing some value into the second variable without using the second textField, but later we need to remove that value from the second textField variable. hope this helps Let's see if we get any other answers/comments from others.