Display Nullvalue in Dropdown by Adding NULL Name

RE: Display Nullvalue in Dropdown by Adding NULL Name

Shanmathi Ponnusamy — Thu, 13 Jul 2023 08:36:20 GMT

Is this what trying to get? If the user selects "NULL" in the dropdown, add logic to query the null values otherwise the name which is selected.

RE: Display Nullvalue in Dropdown by Adding NULL Name

Stefan Helzle — Thu, 13 Jul 2023 08:28:32 GMT

I think this is super confusing. And no, you cannot put a NULL value into the list of choice values.

But maybe if you try to explain what you want to achieve ...

RE: Display Nullvalue in Dropdown by Adding NULL Name

Saahil Mulla — Thu, 13 Jul 2023 08:28:22 GMT

I think you cannot have null as value in the dropdown instead it should be text "Null"

append ( local!noNullChoiceValue, "NULL" )

RE: Display Nullvalue in Dropdown by Adding NULL Name

katharinau3998 — Thu, 13 Jul 2023 08:09:51 GMT

[quote userid="65120" url="~/discussions/f/general/24929/display-nullvalue-in-dropdown-by-adding-null-name/96496#96496"]

local!option:

if count ( local!choiceValue ) = count ( local!noNullChoiceValue ) then pass anyone ( local!ChoiceValue or local!noNullChoiceValue)

Else append ( local!noNullChoiceValue, NULL ),

a!dropdown(
.....

....

.....

Chocie Labesl:local!option

Choice Values:local!option

[/quote]

Has anyone tried this?

I still get the error message "A dropdown component [...] has an invalid value for "choiceValues". Choice values cannot be null.". Of course local!option contains null. Or what am I missing?

RE: Display Nullvalue in Dropdown by Adding NULL Name

Dhananjay Kumar — Mon, 20 Jun 2022 11:01:44 GMT

You need to add logic based on your choice Values.

local!choiceValue: Get all options from the source { Name1, Name 2, Name3, Null}

local!noNullChoiceValue: use reject function to discard null. Expected out put as { name1, Name2, Name3 }

local!option:

if count ( local!choiceValue ) = count ( local!noNullChoiceValue ) then pass anyone ( local!ChoiceValue or local!noNullChoiceValue)

Else append ( local!noNullChoiceValue, NULL ),

a!dropdown(
.....

....

.....

Chocie Labesl:local!option

Choice Values:local!option

and on selection you know what to do when user select NULL or other options