Editable grid validation

Please try this.

a!localVariables(
  local!data,
  a!gridLayout(
    headerCells: {
      a!gridLayoutHeaderCell(label: "Role"),
      a!gridLayoutHeaderCell(label: "Location")
    },
    addRowLink: a!dynamicLink(
      label: "Add",
      saveInto: {
        a!save(
          local!data,
          append(local!data, { role: "", loc: "" })
        )
      }
    ),
    rows: a!forEach(
      items: local!data,
      expression: a!gridRowLayout(
        contents: {
          a!dropdownField(
            choiceLabels: { "Dev", "Tester" },
            choiceValues: { "Dev", "Tester" },
            placeholder: "---",
            value: fv!item.role,
            saveInto: fv!item.role,
            validations: if(
              count(
                intersection(
                  wherecontains(
                    tostring(fv!item.role),
                    a!flatten(local!data.role)
                  ),
                  wherecontains(
                    tostring(fv!item.loc),
                    a!flatten(local!data.loc)
                  )
                )
              ) > 1,
              "combination of role and location already exits",
              ""
            )
          ),
          a!dropdownField(
            choiceLabels: { "India", "USA", "AUS" },
            choiceValues: { "India", "USA", "AUS" },
            placeholder: "---",
            value: fv!item.loc,
            saveInto: fv!item.loc,
            validations: if(
              count(
                intersection(
                  wherecontains(
                    tostring(fv!item.role),
                    a!flatten(local!data.role)
                  ),
                  wherecontains(
                    tostring(fv!item.loc),
                    a!flatten(local!data.loc)
                  )
                )
              ) > 1,
              "combination of role and location already exits",
              ""
            )
          )
        }
      )
    )
  )
)

You can add the below piece of code as validation on both the dropdowns - Role and location.

if(
  and(
    or(
      count(
        wherecontains(fv!item.role, local!array.role)
      ) > 1,
      count(
        wherecontains(fv!item.Location, local!array.Location)
      ) > 1
    ),
    wherecontains(fv!item.role, local!array.role) = wherecontains(fv!item.Location, local!array.Location)
  ),
  "Combination of role and location should be unique.",
  {}
)

Thanks its worked

Thanks

I have much easier way.

a!localVariables(
  local!array: { { role: null, Location: null } },
  a!gridLayout(
    headerCells: {
      a!gridLayoutHeaderCell(label: "Role"),
      a!gridLayoutHeaderCell(label: "Location")
    },
    rows: a!forEach(
      items: local!array,
      expression: a!gridRowLayout(
        contents: {
          a!dropdownFieldByIndex(
            choiceLabels: { "Abc", "Def", "Ghi" },
            validations: if(
              count(wherecontains(fv!item, local!array)) > 1,
              "Combination of role and location should be unique.",
              {}
            ),
            value: fv!item.role,
            saveInto: local!array[fv!index].role,
            placeholder: "-"
          ),
          a!dropdownFieldByIndex(
            choiceLabels: { "L1", "L2", "L3" },
            validations: if(
              count(wherecontains(fv!item, local!array)) > 1,
              "Combination of role and location should be unique.",
              {}
            ),
            value: fv!item.Location,
            saveInto: local!array[fv!index].Location,
            placeholder: "-"
          )
        }
      )
    ),
    addRowLink: a!dynamicLink(
      label: "Add",
      value: append(local!array, { role: null, Location: null }),
      saveInto: local!array
    ),
    
  )
)

Oh yes. We do not need multiple whereContains(). Nice catch Ujjwal!