Interface ClientValidation::isClientValidationValid

Description

In BBj 22.10 and higher, isClientValidationValid returns a boolean value that indicates whether the client validation function, if any, currently reports that this control contains a valid value.

Syntax

Return Value

Method

boolean

isClientValidationValid()

Parameters

None.

Return Value

Returns the boolean result of invoking the client validation function on the current value of the control, or true if the control does not define a client validation function.

Remarks

This incurs a round-trip delay to the client, which eliminates most of the benefit of using client-side validation. It's usually preferable to check BBjLostFocusEvent::isClientValidationValid.

Example

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ClientValidation::isClientValidationValid Example
rem ' Client Validation
sysgui = unt
open (sysgui)"X0"
sysgui! = bbjapi().getSysGui()
flags$ = $00090083$
window! = sysgui!.addWindow(50,50,500,500,"Client Validation",flags$)
window!.setCallback(window!.ON_CLOSE,"eoj")
rem ' https://en.wikipedia.org/wiki/Vehicle_registration_plate
window!.addStaticText(101,25,25,100,25,"License Plate:",$8000$)
lic$ = "ABC123"
lic! = window!.addEditBox(102,130,25,200,25,lic$,$$)
lic!.setName("license")
lic!.setToolTipText("License Plate is 1-12 letters or digits.")
lic!.setAttribute("pattern","^[a-zA-Z0-9 ]*$")
lic!.setAttribute("minlength","1")
lic!.setAttribute("maxlength","12")
lic!.setCallback(lic!.ON_LOST_FOCUS,"blur")
licvalid! = window!.addButton(103,350,25,125,25,"isValid?")
licvalid!.setName("License isValid?")
licvalid!.setCallback(licvalid!.ON_BUTTON_PUSH,"licvalid")
js$ = "return text.length >= 1 && text.length <= 12 && /^[a-zA-Z0-9 ]*$/.test(text)"
lic!.setClientValidationFunction(js$)
print "License getClientValidationFunction:"
print lic!.getClientValidationFunction()
lic!.setClientValidationMessage("License plate is required.")
print "License getClientValidationMessage:"
print lic!.getClientValidationMessage()
rem ' https://en.wikipedia.org/wiki/Vehicle_identification_number
rem ' https://stackoverflow.com/questions/30314850/vin-validation-regex
window!.addStaticText(104,25,75,100,25,"VIN:",$8000$)
mask$ = fill(17,"Z")
vin$ = "1M8GDM9AXKP042788"
vin! = window!.addInputE(105,130,75,200,25,$$,mask$,"",0,vin$,vin$)
vin!.setToolTipText("VIN is 17 letters and digits.")
vin!.setName("VIN")
vin!.setAttribute("pattern","[A-HJ-NPR-Z0-9]{17}")
vin!.setAttribute("minlength","17")
vin!.setAttribute("maxlength","17")
vinvalid! = window!.addButton(106,350,75,125,25,"isValid?")
vinvalid!.setName("VIN isValid?")
vinvalid!.setCallback(vinvalid!.ON_BUTTON_PUSH,"vinvalid")
rem ' omit the check digit calculation
js$ = "return text.length == 17 && /[A-HJ-NPR-Z0-9]{17}/.test(text)"
rem ' include the check digit calculation
gosub js; rem ' VIN check digit calculation functions
js$ = js$ + "return text.length == 17 && /[A-HJ-NPR-Z0-9]{17}/.test(text) && validate(text)"
vin!.setClientValidationFunction(js$)
print "VIN getClientValidationFunction:"
print vin!.getClientValidationFunction()
vin!.setClientValidationMessage("Invalid VIN format.")
print "VIN getClientValidationMessage:"
print vin!.getClientValidationMessage()
vin!.setCallback(vin!.ON_LOST_FOCUS,"blur")
accept! = window!.addButton(1,130,125,200,25,"Accept",$$)
accept!.setName("Accept")
accept!.setCallback(accept!.ON_FORM_VALIDATION,"valid")
accept!.setCallback(accept!.ON_BUTTON_PUSH,"accept")
cancel! = window!.addButton(2,350,125,125,25,"Cancel",$$)
cancel!.setName("Cancel")
cancel!.setCallback(cancel!.ON_BUTTON_PUSH,"cancel")
events! = window!.addCEdit(109,25,175,450,300,$$,$0184$)
event = 0
process_events
eoj:
  release
valid:
  event! = sysgui!.getLastEvent()
  info$ = ""
  gosub event
  print event!.getEventName()
  event!.accept(1)
  i = msgbox("Form passed client validation",0,event!.getEventName())
  return
accept:
  event! = sysgui!.getLastEvent()
  info$ = ""
  gosub event
  print event!.getEventName()
  i = msgbox("Process known valid form",0,event!.getEventName())
  return
cancel:
  event! = sysgui!.getLastEvent()
  info$ = ""
  gosub event
  print event!.getEventName()
  i = msgbox("Cancel form",0,event!.getEventName())
  return
blur:
  event! = sysgui!.getLastEvent()
  temp$ = "isTemporary="+Boolean.toString(event!.isTemporary())
  valid$ = "isValid="+Boolean.toString(event!.isClientValidationValid())
  info$ = temp$+" "+valid$
  gosub event
  control! = event!.getControl()
  print event!.getEventName()," ",control!.getName()," ",info$
  return
licvalid:
  event! = sysgui!.getLastEvent()
  isValid! = lic!.isClientValidationValid()
  info$ = Boolean.toString(isValid!)
  gosub event
  print event!.getEventName()," ",info$
  i = msgbox(info$,0,"License Valid?")
  return 
vinvalid:
  event! = sysgui!.getLastEvent()
  info$ = ""
  gosub event
  isValid! = vin!.isClientValidationValid()
  msg$ = Boolean.toString(isValid!)
  print event!.getEventName()," ",msg$
  i = msgbox(msg$,0,"VIN Valid?")
  return 
event:
  event! = sysgui!.getLastEvent()
  event$ = event!.getEventName()
  control! = event!.getControl()
  control$ = control!.getName()
  event = event + 1
  msg$ = str(event)+" "+event$+" "+control$+" "+info$
  events!.addParagraph(-1,msg$)
  events!.highlight(-1,0,-1,0)
return

rem ' VIN check digit calculation
rem ' https://stackoverflow.com/questions/26407015/javascript-jquery-vin-validator
js:
js$ = ""
js$ = js$ + "function transliterate(c)"
js$ = js$ + "{"
js$ = js$ + "return '0123456789.ABCDEFGH..JKLMN.P.R..STUVWXYZ'.indexOf(c) % 10;"
js$ = js$ + "}"
js$ = js$ + "function get_check_digit(vin)"
js$ = js$ + "{"
js$ = js$ + "var map = '0123456789X';"
js$ = js$ + "var weights = '8765432X098765432';"
js$ = js$ + "var sum = 0;"
js$ = js$ + "for (var i = 0; i < 17; ++i)"
js$ = js$ + "sum += transliterate(vin[i]) * map.indexOf(weights[i]);"
js$ = js$ + "return map[sum % 11];"
js$ = js$ + "}"
js$ = js$ + "function validate(vin)"
js$ = js$ + "{"
js$ = js$ + "if (vin.length !== 17) return false;"
js$ = js$ + "return get_check_digit(vin) === vin[8];"
js$ = js$ + "}"
return

See Also

BBjAPI

BBjSysGui

BBjControl

ClientValidation

See the BBj Object Diagram for an illustration of the relationship between BBj Objects.