Select only one choice in grid selection

mokhtarc970 over 7 years ago

Hello,

I'd like to be able to select only one choice in a grid selection at the same time.
Is there a way to force that?

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Top Replies

Shivam Gupta over 5 years ago +2

Hi mokhtarc970, You can do by making some changes in the saveInto parameter of grid as follows: saveInto: { local!gridSelection, //you create a variable to save grid selection data a!save( local...
manisht209 over 5 years ago +1 suggested
Certified Lead Developer

I had a similar requirement and didn't want to give a validation error message. The intention is to automatically change the selection to the latest selected value in the grid. When User selects...
Mike Schmitt over 5 years ago +1 suggested
Certified Lead Developer

I find the official appian SAIL recipe approach of throwing a validation error to be unnecessary and kinda clunky, no offense, and to be quite honest it doesn't make much sense to me that after all this...

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0 Shivam Gupta over 5 years ago

Hi mokhtarc970,
You can do by making some changes in the saveInto parameter of grid as follows:
saveInto: {
local!gridSelection, //you create a variable to save grid selection data
a!save(
local!selectedId, //you save the selected value to another local variable
reverse(local!gridSelection.selected)[1] //you reverse the local!gridSelection.selected to get the first value as the latest value
),
a!save( // set the local value as null
local!gridSelection.selected,
null
),
a!save( // reset the value to previous variable
local!gridSelection.selected,
local!selectedId
)
}
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0 Shivam Gupta over 5 years ago

Hi mokhtarc970,
You can do by making some changes in the saveInto parameter of grid as follows:
saveInto: {
local!gridSelection, //you create a variable to save grid selection data
a!save(
local!selectedId, //you save the selected value to another local variable
reverse(local!gridSelection.selected)[1] //you reverse the local!gridSelection.selected to get the first value as the latest value
),
a!save( // set the local value as null
local!gridSelection.selected,
null
),
a!save( // reset the value to previous variable
local!gridSelection.selected,
local!selectedId
)
}
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0 chandler.corales

Certified Associate Developer

17 days ago in reply to Shivam Gupta

I found success w/ this use case in 23.1 by mimicking the above code w/ a few changes shown below. It mainly just adds a bit more handling for when you're de-selecting a row.

a!gridField(
    /*...*/
    selectionValue: local!gridSelection,
    selectionSaveInto: {
        local!gridSelection,
        if(
            a!isNullOrEmpty(local!gridSelection),
            {
                a!save(local!gridSelection, {}),
                a!save(local!selectionIndex, {})
            },
            {
                a!save(local!selectionIndex, reverse(local!gridSelection)[1],
                a!save(local!gridSelection, local!selectionIndex)
            }
        ),
        /*more saves*/
    },
    /*...*/
)