Hi all,
Now I want to make a survey that let people evaluate the scene pictures I collected. But I don't know how to insert a random picture from my database then put it into the question ? I'm new to this software, should I add code at somewhere? Thanks !
Thank you very much for your support!

Best,
Chen

Assuming you have image filenames something like image_1.jpg, image_2.jpg, image_3.jpg, image_4.jpg, you can use the Expression Manager rand() function to place something like this in an equation type question :

In this example, is there a way you can save the number of the image you have shown?

Eg. the question shows image_12.png and I would like to save the value 12 to relate the answer with the specific image...

You can create the random number first in an equation question and then instead of the rand part from Tpartners example insert the responde of the equation question as the random number.

Actually, in Tpartners example you could read out the picture, because it is actually writing this code into the equation question already.

Let's say the random number is 5.

Then this would be saved into the random question:

You can create the random number first in an equation question and then instead of the rand part from Tpartners example insert the responde of the equation question as the random number.

Hmm...not sure that would work because Expression Manager wraps piped values in a <span> element. (don't ask me why )

Then this would be saved into the random question:

Yes, exactly