Comment modifier la valeur dans le SQL

Question

J'utilise Stored-Procedure dans SQL-Server2008. Le code mis en œuvre en C# sont les suivantes:

SqlConnection con = new SqlConnection("..."); 

DataTable dt = new DataTable(); 
SqlDataAdapter da = new SqlDataAdapter(); 
SqlCommand cmd = new SqlCommand("sp_point", con); 
da.SelectCommand = cmd; 
cmd.CommandType = CommandType.StoredProcedure; 
con.Open(); 
da.Fill(dt); 
dataGridView1.DataSource = dt; 

Le format Datetime dans ma base de données est basée sur la date, heure, minutes, secondes et millisecondes. Les colonnes indiquent également les millisecondes. Comment modifier le code si je veux afficher la milliseconde?

Edit:

Mon emmagasinées Procédure:

USE [Diagnose] 
GO 
/****** Object: StoredProcedure [dbo].[sp_point] Script Date: 02/09/2017 14:04:02 ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
ALTER proc [dbo].[sp_point] 

as 
SELECT  dbo.Station.StationName, dbo.SPointState.SPointStateName, dbo.Point.PointName, dbo.PointState.PointStateName, dbo.PositionPoint.PositionPointName, 
         dbo.RouteType.RouteTypeName, dbo.PartOfRoute.PartOfRoute AS PartOfRoute, dbo.PointPacket.PointPacketID AS PointPacketID, dbo.PointPacket.Operator AS Operator, 
         dbo.PointPacket.BlockedPoint AS BlockedPoint, dbo.PointPacket.WarningLable AS WarningLable, dbo.PointPacket.EmergencyLock AS EmergencyLock, 
         dbo.PointPacket.SendPointStateFromIO AS SendPointStateFromIO, dbo.PointPacket.SendPointPositionFromIO AS SendPointPositionFromIO, dbo.PointPacket.HealthSendFromIO AS HealthSendFromIO, 
         dbo.Date.Date AS Date_Time 
FROM   dbo.PointPacket INNER JOIN 
         dbo.SPointState ON dbo.PointPacket.SPointState = dbo.SPointState.SPointStateID INNER JOIN 
         dbo.Station ON dbo.PointPacket.StationCode = dbo.Station.StationID INNER JOIN 
         dbo.Date ON dbo.PointPacket.Date = dbo.Date.DateID INNER JOIN 
         dbo.Point ON dbo.PointPacket.PointCode = dbo.Point.PointID INNER JOIN 
         dbo.PointState ON dbo.PointPacket.PointState = dbo.PointState.PointStateID INNER JOIN 
         dbo.PositionPoint ON dbo.PointPacket.PositionPoint = dbo.PositionPoint.PositionPointID INNER JOIN 
         dbo.RouteType ON dbo.PointPacket.RouteType = dbo.RouteType.ID INNER JOIN 
         dbo.PartOfRoute ON dbo.PointPacket.PartOfRoute = dbo.PartOfRoute.ID 

select * from PointPacket 

Answer 1

Vous devez modifier la manière dont les données sont affichées dans la couche de vue, pas les données (procédure SQL) ou la couche de service (da.Fill(dt);).

Vous pouvez personnaliser la façon dont une information datetime est affiché dans une colonne de vue de la grille comme indiqué here:

// keep all date/time info until seconds, included 
gridView.Columns[dateColIndex].DefaultCellStyle.Format = "MM/dd/yyyy HH:mm:ss"; 

Answer 2

Essayez de convertir cette colonne datetime au format varchar.