Hiding options from dropdown values

Any specific solution which worked mohamedb?

Here is a sample code logic that can do the same. Ensure you refine the code as you want and apply necessary best practices

a!localVariables(
  local!choiceValues: { "Primary", "Choice 2", "Choice 3" },
  local!selectedRoles: {},
  {
    a!gridLayout(
      label: "Editable Grid",
      labelPosition: "ABOVE",
      headerCells: {
        a!gridLayoutHeaderCell(label: "Header Cell")
      },
      columnConfigs: {},
      rows: a!forEach(
        items: local!selectedRoles,
        expression: {
          a!gridRowLayout(
            contents: {
              a!dropdownField(
                label: "Ownership Role",
                placeholder: "Select",
                choiceLabels: difference(
                  local!choiceValues,
                  difference(local!selectedRoles, fv!item)
                ),
                choiceValues: difference(
                  local!choiceValues,
                  difference(local!selectedRoles, fv!item)
                ),
                value: fv!item,
                saveInto: fv!item
              )
            }
          )
        }
      ),
      selectionSaveInto: {},
      validations: {},
      addRowLink: a!dynamicLink(
        label: "Add Row",
        saveInto: {
          a!save(
            local!selectedRoles,
            touniformstring(append(local!selectedRoles, null))
          )
        }
      ),
      shadeAlternateRows: true
    )
  }
)