Validating the login interface credentials

Can you share a sample expression for the login interface

What do you want to achieve?

To get any access to Appian you already have to log in. There is nothing like a "custom login page" in Appian.

I am creating own custom login page interface and trying to validate them

What exactly do you mean with "own custom login page"?

Hi...

For delete record from grid and also from DB I have created this type of interface

------------------------------------

a!localVariables(
local!selection,
local!selectedRows,
local!removedIds,
{
a!buttonArrayLayout(
buttons: {
a!buttonWidget(
label: "REMOVE",
saveinto: {
a!save(
local!removedIds,
append(
local!removedIds,
local!selectedRows['recordType!PRA Patient Submission.fields.id']
)
),
a!save(local!selectedRows, null),
a!save(local!selection, null)
},
style: "NORMAL",
disabled: if(
or(
isnull(local!selectedRows),
length(local!selectedRows) < 1
),
true,
false
)
)
},
align: "START"
),
a!gridField(
label: "Patient Details",
labelPosition: "ABOVE",
data: a!queryEntity(
entity: cons!PRA_DSE_PATIENTLOG,
query: a!query(
selection: a!querySelection(
columns: {
a!queryColumn(field: "Id"),
a!queryColumn(field: "firstName"),
a!queryColumn(field: "lastName"),
a!queryColumn(field: "dob"),
a!queryColumn(field: "gender"),
a!queryColumn(field: "address"),
a!queryColumn(field: "zipCode"),
a!queryColumn(field: "email")
}
),
pagingInfo: fv!pagingInfo
),
fetchTotalCount: true
),
columns: {
a!gridColumn(
label: "Id",
sortField: "Id",
value: fv!row.Id,
align: "END"
),
a!gridColumn(
label: "First Name",
sortField: "firstName",
value: fv!row.firstName
),
a!gridColumn(
label: "Last Name",
sortField: "lastName",
value: fv!row.lastName
),
a!gridColumn(
label: "Dob",
sortField: "dob",
value: fv!row.dob,
align: "END"
),
a!gridColumn(
label: "Gender",
sortField: "gender",
value: fv!row.gender
),
a!gridColumn(
label: "Address",
sortField: "address",
value: fv!row.address
),
a!gridColumn(
label: "Zip Code",
sortField: "zipCode",
value: fv!row.zipCode,
align: "END"
),
a!gridColumn(
label: "Email",
sortField: "email",
value: fv!row.email
)
},

selectable: true,
selectionStyle: "ROW_HIGHLIGHT",
selectionValue: local!selection,
selectionSaveInto: {
local!selection,
a!save(
local!selectedRows,
append(local!selectedRows, fv!selectedRows)
),
a!save(
local!selectedRows,
difference(local!selectedRows, fv!deselectedRows)
),


a!save(
local!removedIds,
append(local!removedIds, fv!selectedRows)
),
a!save(
local!removedIds,
difference(local!removedIds, fv!deselectedRows)
)

},

)
}
)

-----------------------------------------------------------------------

Getting Error---

Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error [evaluation ID = e14e3:43de1] : An error occurred while executing a save: Expression evaluation error at function 'append' parameter 2 [line 13]: Invalid index type: Record field uuid: 1bd64c1b-12c9-47e0-bcf7-b2bf9dc77276 Record type uuid: 6fb016a4-87b5-41fc-a055-bf098af64dc9 Relationship path: null

login page issue resolved

hey, can you please send me the interface expression for this login page!