ListBoxItem selectedType = (type.SelectedItem as ListBoxItem); 什么意思啊？

千问 · 2011-4-11 12:39:31

<pre id=\"best-answer-content\" class=\"reply-text mb10\">其实就是将type 控件的SelectedItem 赋值给一个新定义的selectedType 变量

type.SelectedItem as ListBoxItem并进行了类型转换

<h4 class=\"ask\">追问

<pre class=\"replyask-text\" id=\"content-2931296\">为什么type.SelectedItem as ListBoxItem并进行了类型转换呢？

千问 · 2011-4-11 12:39:31

<pre class=\"replyask-text\" id=\"content-2933371\">ListBoxItem selectedType = (type.SelectedItem as ListBoxItem);
等价于
ListBoxItem selectedType = (ListBoxItem)type.SelectedItem;