Is there a way to display record picker as a dropdown?

No, if you want to display a dropdown, you'll have to use the dropdown component instead and populate the list of options with a query.

Hello

Thank you for replying. 

I am not sure how to write the query and the configuration of dropdown when using a query,

Could you please give some sample examples of them

Thanks and regards,

Aishwarya

a!localVariables(
local!pickedState,
local!dropdowndata: rule!qe_getallStates().data,
local!stateLabels: index(local!dropdowndata, "state", null()),
local!stateAbbreviations: index(local!dropdowndata, "id", null()),
a!dropdownField(
label: "States",
instructions: "Enter the employee's state of residence.",
choiceLabels: local!stateLabels,
choiceValues: local!stateAbbreviations,
placeholder: "Select a US state",
value: local!pickedState,
saveInto: local!pickedState,

)
)

a!queryRecordType(
recordType: 'recordType!{SYSTEM_RECORD_TYPE_USER}User',
fields: {
'recordType!{SYSTEM_RECORD_TYPE_USER}User.fields.{SYSTEM_RECORD_TYPE_USER_FIELD_username}username'
},
filters: a!queryLogicalExpression(
operator: "AND",
filters: {
a!queryFilter(
field: 'recordType!{SYSTEM_RECORD_TYPE_USER}User.fields.{SYSTEM_RECORD_TYPE_USER_FIELD_active}active',
operator: "=",
value: true
)
},
ignoreFiltersWithEmptyValues: true
),
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 100
)
).data

(if you are using community site use this as it is, Cause(User record type holds all the users data of your site)), or if you working in server try to write query to database where it holds user data(Use a!queryentity) & in choice values directly reference this in choice values & choice labels

a!queryRecordType(
recordType: 'recordType!{SYSTEM_RECORD_TYPE_USER}User',
fields: {
'recordType!{SYSTEM_RECORD_TYPE_USER}User.fields.{SYSTEM_RECORD_TYPE_USER_FIELD_username}username'
},
filters: a!queryLogicalExpression(
operator: "AND",
filters: {
a!queryFilter(
field: 'recordType!{SYSTEM_RECORD_TYPE_USER}User.fields.{SYSTEM_RECORD_TYPE_USER_FIELD_active}active',
operator: "=",
value: true
)
},
ignoreFiltersWithEmptyValues: true
),
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 100
)
).data

(if you are using community site use this as it is, Cause(User record type holds all the users data of your site)), or if you working in server try to write query to database where it holds user data(Use a!queryentity) & in choice values directly reference this in choice values & choice labels

Thank you so much