MS Dynamics CRM 2011 SDK - 使用后期绑定更新实体记录

Question

没有人知道如何使用SDK for Dynamics CRM 2011将更改保存到后期绑定的实体？

这是我已经试过：

// retrieve and modify a pet... 
// (This part works) 
Guid findId = new Guid("6CA57D73-30CC-E111-B155-00505630052F"); 
ColumnSet attributes = new ColumnSet(new string[] { "name", "foodtype" }); 

// try to retrieve 
// (this also works) 
pet = xrm.Retrieve("pet", findId, attributes); 
if(pet!=null) 
{ 
    Console.WriteLine(String.Format("Retrieved pet {0} successfully!", pet["name"].ToString())); 
    // update attributes 
    pet["foodtype"] = "Seaweed"; 
    // (from here doesn't seem to work) 
    // save pet 
    xrm.SaveChanges(); 
    Console.WriteLine("Done!"); 
} 

感谢所有帮助:)

Answer 1

试试这个：

pet["foodtype"] = "Seaweed"; 

xrm.UpdateObject(pet); 
xrm.SaveChanges(); 

编辑："The context is not currently tracking the 'pet' entity"意味着你从Retrieve获取对象是不附加到服务上下文。有一种方法Attach就是这么做的。

xrm.Attach(pet); 
pet["foodtype"] = "Seaweed"; 

xrm.UpdateObject(pet); 
xrm.SaveChanges(); 

Answer 2

这工作：

pet["foodtype"] = "Seaweed"; 
pet.EntityState = EntityState.Changed; // not sure if this is really needed 
// save pet 
xrm.Update(pet);