请解释GridView1.SelectedIndexChanged [英] Please explain GridView1.SelectedIndexChanged

问题描述

    GridView1.SelectedIndexChanged  + = new EventHandler（GridView1_SelectedIndexChanged1）; 
 

请解释上面和它们之间的区别以上和以下

 <   pre  >  <  < span class =code-leadattribute> b  >  <   b  >  <   / b  >  GridView1.SelectedIndexChanged <   / b  >  + = new EventHandler（GridView1_SelectedIndexChanged）; <   / pre  >  

（即）

 GridView1_SelectedIndexChanged1）

和

 GridView1_SelectedIndexChanged）

问题已经出现，因为必须填充gridview的页面加载例程不起作用。

解决方案

< blockquote>它所做的就是为另一个方法添加一个处理程序。

这通常发生在你添加一个处理程序（所以它为你创建GridView1_SelectedIndexChanged方法模板）然后删除处理程序而不删除方法时，然后添加一个新的处理程序（检查GridView1_SelectedIndexChanged是否存在，因为它确实创建了GridView1_SelectedIndexChanged1并将其挂起）



如果它无效那么你需要更准确地说明您的期望和发生的事情：有很多可能性，特别是基于网络的解决方案我们无法猜测小号！

GridView1.SelectedIndexChanged += new EventHandler(GridView1_SelectedIndexChanged1);

Please explain above and the difference between the above and below

<pre> <b><b></b>GridView1.SelectedIndexChanged </b>+= new EventHandler(GridView1_SelectedIndexChanged);</pre>

(i.e)

GridView1_SelectedIndexChanged1)

and

GridView1_SelectedIndexChanged)

The issues has arisen because the page load routine which has to fill the gridview is not working.

解决方案

All it does is add a handler to a different method.
This normally happens when you add a handler (so it creates the GridView1_SelectedIndexChanged method template for you) then remove the handler without removing the method, and later add a new handler (which checks if GridView1_SelectedIndexChanged exists, and because it does creates GridView1_SelectedIndexChanged1 and hooks that up)

If it "is not working" then you need to specify more clearly exactly what you are expecting, and what is happening: there are so many possibilities, particularly with a web-based solution that we can't guess!

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