Load and With with local variable

sauravk over 5 years ago

Hi ,

I know it could be an silly question but as i am learner so for me need to understand Why ??

Why with is not accepting load variable and throwing Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error : Cannot add incompatible operands of type Number (Integer) and type Null.

load(
local!c:10,

with(

local!a:10, local!b:20,

local!a+local!b+local!c)
)

But if we do reverse its working.

load(

with(
local!c:10,
local!a:10, local!b:20,

local!a+local!b+local!c)
)

Could not display interface. Please check definition and inputs. Interface Definition: Not a valid component. Received: 40

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0 santoshd378
Certified Lead Developer
over 5 years ago

Hi Saurav,

As you are trying to display the number in interface without any components, so the error appears.
Try to show that value in a component, for example let us say an integer field. Then the interface should render.
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0 sauravk over 5 years ago in reply to santoshd378

But without that its giving result at the end of error . I am just doing this for debugging purpose.
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0 santoshd378
Certified Lead Developer
over 5 years ago in reply to sauravk

Interfaces can't show literal values without any components, Instead test them in Expression rules
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+1 soujanyac0001
A Score Level 1
over 5 years ago

Hi Saurav,

Try it like this .Since you have not given a valid component you are getting error

load(
local!c:10,

with(

local!a:10, local!b:20,

a!integerField(
value: local!a+local!b+local!c
)
)
)
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0 arikd398 over 5 years ago

Hi sauravk ,

Even though the method you are following is not the correct one for debugging purpose also.

But

load(
local!c:10,

with(

local!a:10, local!b:20,

local!a+local!b+local!c)
)

the above code is giving the same error as its reverse code:

Could not display interface. Please check definition and inputs. Interface Definition: Not a valid component. Received: 40

So please check it once.

And as suggested by everyone please use integer field or text field for debugging in interface.
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0 sauravk over 5 years ago in reply to soujanyac0001

Thanks its working.
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0 ravalik
A Score Level 1
over 5 years ago

Hi sauravk,

The error occurred due to invalid component i.e you need to provide a text or integer component so that it displays the result with out any error.Give the values to the respective components and try it.

load(
local!a:1,

with(

local!b:2, local!c:3,

a!textField(
value: local!a+local!b+local!c
)
)
)
Thanks,
ravalik
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0 vimalkumars
Certified Lead Developer
over 5 years ago
Hi sauravk,

Looks like you are trying to use an expression in the interface design instead of rule design.

Same code you have shared will work good in rules.

It throws an error in interface because interface expects a SAIL Components as an output.

Below code works in interface because this contains Integer SAIL Component as an output

load( local!c: 10, with( local!a: 10, local!b: 20, a!integerField( value: local!a + local!b + local!c ) ) )
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0 paragk998
Certified Senior Developer
over 5 years ago

use the code in Expression rule both will work.

in above code your output return is local!a+local!b+local!c
which is not a SAIL component but integer value

if you use interface then interface output must be SAIL component to display it.
but interface will not be able to display without any SAIL component.(as you are using hare in code)
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