本文介绍了具有多个条件的FirstOrDefault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
在Sql链接中,这可以正常工作:
In Link to Sql, this works fine:
User user = this.dataContext.Users.FirstOrDefault(p => p.User_ID == loginID);但是,我想使用以下条件进行搜索:
However, I would like to search using conditions like:
User user = this.dataContext.Users.FirstOrDefault( p => p.User_ID == 250 && p => p.UserName == "Jack");正确的方法是什么?
谢谢.
推荐答案var user = this.dataContext.Users.FirstOrDefault( p => p.User_ID == 250 && p.UserName == "Jack");
开头的p =>用于整个表达式.这里使用的语法是
The p => at the beginning counts for the whole expression. The syntax used here is a shorthand for
(p) => { return p.User_ID == 250 && p.UserName == "Jack"; }更多推荐
具有多个条件的FirstOrDefault
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