Valor máximo de una columna datagridview

IdTarea = dgv_tareas.Rows.Cast(Of DataGridViewRow).Max(Function(row) row.Cells("Column1").Value)

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comparar fecha y hora sql

if CAST('2019-11-11' as DATE) > '2019-11-10'
begin
print 'si'
end
else
begin
print 'no'
end 
     
     
if CAST('05:59:00' as TIME) > '06:00:00'
begin
print 'si'
end
else
begin
print 'no'
end

SELECT CONVERT(CHAR(10),DATEADD(DAY,1,campo_tabla),121) FROM tabla WHERE id=5510
select dateadd(DAY,1,CAST(GETDATE() AS DATE))

SELECT * FROM hist_DTE
WHERE fecha_emision >='2019-11-10' AND estado_SII='Pendiente' AND --id_DTE=5510 AND
--CONVERT(CHAR(10),GETDATE(),121)>= fecha_creacion_registro AND
CONVERT(CHAR(8),GETDATE(),108)>=CONVERT(CHAR(8),DATEADD(HOUR,11,hora_creacion_registro),108)

select CAST(CONVERT(CHAR(8),DATEADD(HOUR,11,'01:21:00'),108) AS TIME)
select CAST(CONVERT(CHAR(8),GETDATE(),108) as TIME)

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ordenar listbox

Dim arr() As Integer = New Integer(lb_dte_activo.Items.Count - 1) {}
            Dim i As Integer = 0

            For Each elem In lb_dte_activo.Items
                arr(i) = elem
                i += 1
            Next
            Array.Sort(arr)
            'lb_dte_activo.Sorted = False
            lb_dte_activo.Items.Clear()
            lb_dte_activo.Items.AddRange(arr.Cast(Of Object).ToArray())

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