本文介绍了当有实体框架时,我们仍然需要bindingsource的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

实体框架在基础数据源和UI控件之间起着ORM的作用,我想知道我们还需要在EF之上使用bindingsource吗?



例如
我可以绑定

  datagridview.DataSource = entity.getdata(); 

而不是

 code> bindingsource.DataSource = entity.etdata(); 
this.datagridview.DataSource = this.bindingsource;


解决方案

显然,您可以直接将Gridview的数据源绑定到实体结果。

但是以下情况如何:


  1. 将多个控件附加到同一数据源,例如列表+细节

  2. 通过数据源导航代码隐藏。

    可以使用丑陋CurrencyManager完成,但是通过绑定源更好更好的

更多这里


entity framework plays a role as ORM in between the underlying datasource and UI controls, i'm wondering do we still need to use bindingsource on top of EF?

e.g. can i just bind

datagridview.DataSource = entity.getdata();

instead of

bindingsource.DataSource = entity.etdata();
this.datagridview.DataSource = this.bindingsource;
解决方案

Obviously you can directly bind the datasource of the Gridview to the entity result.
But what about following scenarios:

  1. Having multiple controls attaching to the same datasource, e.g. List+Detail
  2. Navigating in code-behind through the datasource.
    Can be done using "ugly" CurrencyManager but is much nicer through the bindingsource

More here bindingsource "Remarks" section in MSDN

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10-20 02:58