empty label always display undefined

[M&M]

Can you add a screenshot of the mapping

[She]

oh im sorry i already deleted that code so i just retyped it.

if (data[0])
{
Appery('label1').text(" ");
Appery('label2').text(" ");
Appery('label3').text(" ");
}

[M&M]

Just add an alert box to the "Error" event of REST Service. See if that fires. If it does

Then just add these 3 lines at that place

Appery('label1').text("");
Appery('label2').text("");
Appery('label3').text("");

[M&M]

what is data[0] ... because if that evaluates to false then the labels won't get cleared

[She]

[M&M]

There is a simple trick that you could use

1. Have a local storage variable

2. Set it to zero in the before Send event (Before Send Event)

3. Set it to 1 in successful (Success Event)

4. Set it to 2 in unsuccessful (Error Event)

5. In the Complete Event read it's value (1 or 2?)...If it is 2 (Error event) then clear the labels with the following commands

   Appery('label1').text("");
   Appery('label2').text("");
   Appery('label3').text("");

   Alternatively you can also read one the mapped variables or components. If it doesn't have - say a numeric value / or a valid date, then you can assume that the REST Call was not able to return results...and so you can just clear the labels

   Hope that clarifies it

[She]

[M&M]

Put an alert box in the Error event and check if that fires - when the REST does not return any values

[M&M]

If the alert fires, then just put the code to clear the labels in that place

[She]

sad to say, the alert not fires.