Question

我有一个WPF应用程序，其表单可以在一个Save按钮上单击更新多个相关表。我想将保存代码放入单独的函数中，如下所示。

这会有用吗？如何在一个ObjectContext和一个SaveChanges调用中执行此操作？

        private void SaveEntity()
        {
            using (var oContext = new MyEntities())
            {
                SaveEntityInfo();
                SaveOwners();
                SavePartners();
                SaveOfficers();
                SaveDirectors();
                oContext.SaveChanges();
            }
        }

Answer 1

它可以用于一些更改。您可以这样更改代码：

private void SaveEntity()
{
    using (var oContext = new MyEntities())
    {
        SaveEntityInfo(oContext);
        SaveOwners(oContext);
        SavePartners(oContext);
        SaveOfficers(oContext);
        SaveDirectors(oContext);
        oContext.SaveChanges();
    }
}

//One of multiple save methods
private void SaveEntityInfo(MyEntities context)
{
    //Add something to context
    //Remove something from context
    //Update something in context
    //But never use context.Save() here
    //Let SaveChanges() only calls in your SaveEntity() method
}

如何将EF ObjectContext传递给多个函数？

1 个答案: