Pfthb

In my below script, I want to change the value of the variable $drop_down_items every time when the loop is executed.

div.col:nth-child(**2**) > div:nth-child(1) > div:nth-child(3) > div:nth-child(1) > combo-box:nth-child(1) > div:nth-child(1) > div:nth-child(2) > div

In the above locator I want to increment the nth-child value from 2 to 3, 3 to 4 and so on every time when the loop is executed.

*** Variables ***
$combo_boxes css=div.col > div:nth-child(1) > div:nth-child(3) > div:nth-child(1) > combo-box:nth-child(1) > div:nth-child(1)
$drop_down_items css=div.col:nth-child(2) > div:nth-child(1) > div:nth-child(3) > div:nth-child(1) > combo-box:nth-child(1) > div:nth-child(1) > div:nth-child(2) > div
*** Keywords ***
Loop
 @combo_boxes= Get WebElements $combo_boxes
 :FOR $each IN @combo_boxes
 Click Element $each
 Loop A
 Sleep 0.5s
 Click Element $each

Loop A
 @get_role_list= Get WebElements css=div.col:nth-child(2) > div:nth-child(1) > div:nth-child(3) > div:nth-child(1) > combo-box:nth-child(1) > div:nth-child(1) > div:nth-child(2) > div
 :FOR $each IN @get_role_list
 Sleep 0.5s
 Click Element $each
 Sleep 0.5s
 Run Keyword If '$each'!='EXIT' Click Element $combo_boxes

Loop
 @combo_boxes= Get WebElements $combo_boxes
 $INTEGER = Set Variable 2
 Set Suite Variable $INTEGER_A $INTEGER
 :FOR $each IN @combo_boxes
 Click Element $each
 $roles_list= Set Variable css=.list > div:nth-child($INTEGER_A) > 
 div:nth-child(1) > div:nth-child(3) > div:nth-child(1) > combo-box:nth-child(1) > div:nth-child(1) > div:nth-child(2) > div
 Loop A $roles_list $each
 $INTEGER_A= Evaluate $INTEGER_A + 1
 Sleep 0.5s
 Click Element $each


Loop A
 [Arguments] $roles_list $combo
 @get_role_list= Get WebElements $roles_list
 :FOR $each IN @get_role_list
 Click Element "$each"
 Run Keyword If '$each'!='EXIT' Click Element $combo

The solution is to add another loop layer. In the Robot Framework Guide there is a section on the different looping functionality that Robot Framework offers. In particular have a loop at the For-in-range section. This is an example that should help with your problem.

*** Test Cases ***
Only upper limit
 [Documentation] Loops over values from 0 to 9
 :FOR $index IN RANGE 10
 Log $index