how to show first 'n' rows in read only Grid

Hi ,

I am using Record type as a data source as grid field . I have the requirement to show the first 500 record list in the grid after applying filters and sorting. I did something like this.

local!pagingInfo: a!pagingInfo(startIndex: 1, batchSize: 500),

a!gridField(
    label: "Read-only Grid",
    labelPosition: "ABOVE",
    data: local!employeeData,
    columns: {
      a!gridColumn(
        label: "First Name",
        sortField: "firstName",
        value: fv!row.firstName
      ),
      a!gridColumn(
        label: "Last Name",
        sortField: "lastName",
        value: fv!row.lastName
      )
    },
    pagingsaveinto: local!pagingInfo
  )
I understand batchsize will not help as it will return 500 rows for each page. Can some one help here