Custom paging Query

Hi...

here is a way to write query for custom paging

create procedure GetCustomersByPage
@PageSize int,
@PageNumber int,
@WhereString varchar(max),
@SortExpression varchar(200),
@TotalCount int output
as
begin

declare @FirstRecord int
declare @LastRecord int


set @FirstRecord = (((@PageNumber - 1) * @PageSize) + 1)
set @LastRecord = (@PageNumber * @PageSize)

declare @sql nvarchar(max)
DECLARE @ParmDefinition NVARCHAR(500)
SET @ParmDefinition=N'@TotalCount int OUTPUT'

set @sql = 'select @TotalCount = count(*) from dbo.Customers where 1=1 '+@WhereString+';
with PagedCustomers as (select row_number() over(order by '+@SortExpression+') as RowNumber, * from dbo.Customers where 1=1 '+@WhereString+')
SELECT * from PagedCustomers where RowNumber between '+cast(@FirstRecord as varchar)+'and '+cast(@LastRecord as varchar)

exec sp_executesql @sql, @ParmDefinition, @TotalCount=@TotalCount output

return @TotalCount
end