Linq where element.equals一个数组

Question

i can simply get one item of an array by

   string myKeyword="test";
   GridView1.DataSource = from e in table where e.Keyword.Equals(myKeyword) select e;

how can i extend it to an array? I want something like:

   string[] myKeywords={"test1", "test"};
   GridView1.DataSource = from e in table where e.Keyword.Equals(myKeywords) select e; // something like this?

i want to get all elements where the Keyword is equal to one of the the Keywords in myKewords

Answer 1

您需要使用Enumerable.Contains方法：

var temp = (from e in table where myKeywords.Contains(e.Keyword)).ToArray();

Answer 2

string[] temp = (from e in table
                 join k in myKeywords on  e.Keyword equals k
                 select e.Keyword).ToArray();