评估与绑定之间的区别 [英] Difference between Eval and Bind

问题描述

在ASP.Net中应该在哪里使用Eval，在哪里使用Bind Expression?谁能向我详细解释一下?我在网格中使用了Eval进行更新，但是当我按Edit时，整行都消失了.

Where should I use the Eval and and where should I use the Bind Expression in ASP.Net? Can anyone explain that to me in detail? I used the Eval in my grid to update, but when I press edit, the whole line is disappearing.

推荐答案

用于只读(单向数据绑定)数据绑定控制，它们是相同的(我猜Bind具有更多功能，因为它具有更多功能，但我无法确认).

对于2种方式的数据绑定(使用要在其中使用声明性数据绑定进行更新，插入等的数据源)，您将需要使用#Bind.

就那么简单. Eval是只读的，Bind允许数据进行两种方式.

为什么不进行简单的Google搜索?


评估绑定差异:

For a read-only (one way databinding) databound control, they are the same (I''m guessing Bind has slightly more overhead since it has more functionality, but I can''t confirm that).

For 2 way databinding (using a datasource in which you want to update, insert, etc with declarative databinding), you''ll need to use #Bind.

Simple as that. Eval is read only, Bind allows for data to go two ways.

Why dont do a simple google search?


eval bind difference:

http://www.google.co.in/search?q=eval+bind+difference&rls=com.microsoft:en-us&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1&redir_esc=&ei=RKutTNzTK4yCvgOi-uT0Bg[^]

Eval()在只读数据时使用.如果可以更新数据，则使用Bind().

Eval() is used when data is read only. If data can be updated then Bind() is used.

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