Development tools and key technologies: VS, MVC
Author: Chen Xingyu
Write Time: April 1
This code can be seen, lingq notation statement is
By from to the field hands, tbUser custom attributes in followed by a data source, and then we can where to operate the data conditional statement
Finally, select to query the data keyword
In addition to directly query the entire table, we can also write anonymously
By anonymous form we can query the fields that we want to query, you do not always have to search the entire table , we can selectively query field we want to query
We can finish the query data
SINGLE () , query data singled out, when there is no data or more data will trigger an exception
Tilist () , and query multiple data into List format
Count, inquire how many pieces of data
The method can be processed according to different situations query with these three attributes;