diff --git a/IRaCIS.Core.Domain/Image/DicomStudyMonitor.cs b/IRaCIS.Core.Domain/Image/DicomStudyMonitor.cs
index 24305ec5e..2616aa23b 100644
--- a/IRaCIS.Core.Domain/Image/DicomStudyMonitor.cs
+++ b/IRaCIS.Core.Domain/Image/DicomStudyMonitor.cs
@@ -32,6 +32,7 @@ namespace IRaCIS.Core.Domain.Models
 
         public int TotalMillisecondsInterval { get; set; }
 
+
         public DateTime UploadStartTime { get; set; }
 
 
diff --git a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
index 59ddd119e..c0a148cd4 100644
--- a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
+++ b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
@@ -10,6 +10,7 @@ using Microsoft.EntityFrameworkCore.ChangeTracking;
 using System.Reflection;
 using EntityFramework.Exceptions.SqlServer;
 using IRaCIS.Core.Domain.Share;
+using IRaCIS.Core.Infra.EFCore.ValueGenerator;
 using MassTransit;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
@@ -20,7 +21,7 @@ namespace IRaCIS.Core.Infra.EFCore
 {
     public class IRaCISDBContext : DbContext
     {
-        public  readonly IUserInfo _userInfo;
+        public readonly IUserInfo _userInfo;
 
         // 在控制台
         //public static readonly ILoggerFactory MyLoggerFactory    = LoggerFactory.Create(builder => { builder.AddConsole(); });
@@ -33,7 +34,7 @@ namespace IRaCIS.Core.Infra.EFCore
             //_configuration = configuration;
         }
 
-         
+
         //比数据库上下文构造函数先执行 不能构造函数注入的方式使用配置文件
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
@@ -66,13 +67,12 @@ namespace IRaCIS.Core.Infra.EFCore
         #endregion
 
 
+
+
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
             //modelBuilder.Entity<User>().Property(t => t.FullName) .HasDefaultValueSql("[LastName] + ' / ' + [FirstName]");
 
-            //code first  must  migration    dbfirst  must config  in db
-            modelBuilder.Entity<StudyMonitor>().Property(e => e.TotalMillisecondsInterval).HasComputedColumnSql("datediff(MS,UploadStartTime,UploadFinishedTime)");
-
             if (_userInfo.IsEn_Us)
             {
                 modelBuilder.Entity<Dictionary>().Property(t => t.MappedValue).HasColumnName(nameof(Domain.Models.Dictionary.Value));
@@ -238,7 +238,7 @@ namespace IRaCIS.Core.Infra.EFCore
 
 
         #region QA
-       
+
         public virtual DbSet<QCChallengeDialog> QCChallengeDialog { get; set; }
         public virtual DbSet<QANotice> QATemplateDictionary { get; set; }
         public virtual DbSet<QCChallenge> QCChallenge { get; set; }
@@ -328,7 +328,7 @@ namespace IRaCIS.Core.Infra.EFCore
         #region 重写savechange方式 统一增加审计信息 CreateUserId CreateTime UpdateTime UpdateUserId  可用事件绑定的方式UpdateAuitUser
         private void UpdateAuditInfo()
         {
-          
+
             ChangeTracker.DetectChanges(); // Important!
 
             //// 获取所有更改，删除，新增的实体，但排除审计实体（避免死循环）
@@ -350,7 +350,7 @@ namespace IRaCIS.Core.Infra.EFCore
                             updateEntity1.UpdateUserId = _userInfo.Id;
                         }
 
-                        if(t.Entity is ISoftDelete updateEntity2)
+                        if (t.Entity is ISoftDelete updateEntity2)
                         {
                             if (updateEntity2.IsDeleted == true)
                             {
@@ -374,7 +374,7 @@ namespace IRaCIS.Core.Infra.EFCore
                             {
                                 addEntity.CreateTime = DateTime.UtcNow.AddHours(8);
                             }
-                            
+
                             addEntity.CreateUserId = _userInfo.Id;
                         }
 
@@ -395,7 +395,7 @@ namespace IRaCIS.Core.Infra.EFCore
             }
 
 
-           
+
         }
         #endregion
 
diff --git a/IRaCIS.Core.Infra.EFCore/Context/ValueGenerator/UploadTotalMillisecondsIntervalGenerator.cs b/IRaCIS.Core.Infra.EFCore/Context/ValueGenerator/UploadTotalMillisecondsIntervalGenerator.cs
new file mode 100644
index 000000000..5c2aba700
--- /dev/null
+++ b/IRaCIS.Core.Infra.EFCore/Context/ValueGenerator/UploadTotalMillisecondsIntervalGenerator.cs
@@ -0,0 +1,31 @@
+using System;
+using IRaCIS.Core.Domain.Models;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using Microsoft.EntityFrameworkCore.ValueGeneration;
+
+namespace IRaCIS.Core.Infra.EFCore.ValueGenerator
+{
+    public class UploadTotalMillisecondsInterval : ValueGenerator<int>
+    {
+
+        //code first  must  migration    dbfirst  must config  in db and also need config in code
+        //modelBuilder.Entity<StudyMonitor>().Property(e => e.TotalMillisecondsInterval).HasComputedColumnSql("datediff(MS,UploadStartTime,UploadFinishedTime)");
+
+        //modelBuilder.Entity<StudyMonitor>().Property(e => e.TestInterval).ValueGeneratedOnAddOrUpdate().HasDefaultValueSql("datediff(MS,UploadStartTime,UploadFinishedTime)");
+
+
+        public override int Next(EntityEntry entry)
+        {
+            if (entry.Entity is StudyMonitor entity)
+            {
+                return (entity.UploadFinishedTime - entity.UploadStartTime).Milliseconds;
+            }
+            else
+            {
+                throw new ArgumentException("ValueGenerator用在了不适合的实体");
+
+            }
+        }
+        public override bool GeneratesTemporaryValues => false;
+    }
+}
\ No newline at end of file
diff --git a/IRaCIS.Core.Infra.EFCore/EntityConfigration/StudyMonitorConfigration.cs b/IRaCIS.Core.Infra.EFCore/EntityConfigration/StudyMonitorConfigration.cs
index dfd300a82..142e4a78e 100644
--- a/IRaCIS.Core.Infra.EFCore/EntityConfigration/StudyMonitorConfigration.cs
+++ b/IRaCIS.Core.Infra.EFCore/EntityConfigration/StudyMonitorConfigration.cs
@@ -1,4 +1,5 @@
 using IRaCIS.Core.Domain.Models;
+using IRaCIS.Core.Infra.EFCore.ValueGenerator;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata.Builders;
 
@@ -11,11 +12,13 @@ namespace IRaCIS.Core.Infra.EFCore.EntityConfigration
 
         public void Configure(EntityTypeBuilder<StudyMonitor> builder)
         {
-         //   builder
-         // .HasMany(s => s.TrialSiteUserList)
-         //.WithOne(c => c.DicomStudy)
-         //.HasForeignKey(s => new { s.TrialId, s.SiteId })
-         //.HasPrincipalKey(c => new { c.TrialId, c.SiteId });
+            //   builder
+            // .HasMany(s => s.TrialSiteUserList)
+            //.WithOne(c => c.DicomStudy)
+            //.HasForeignKey(s => new { s.TrialId, s.SiteId })
+            //.HasPrincipalKey(c => new { c.TrialId, c.SiteId });
+
+            builder.Property(e => e.TotalMillisecondsInterval).HasValueGenerator<UploadTotalMillisecondsInterval>().ValueGeneratedOnAdd();
 
 
             builder