CRL Rapid Development Framework Series Tutorial IV (delete data)

Catalog of this series

1. CRL Rapid Development Framework Series tutorial One (Code First Data Sheet no need to care)
2. CRL Rapid Development Framework Series Tutorial II (based on lambda expression query)
3. CRL Rapid Development Framework Series Tutorial III (update data)
4. CRL Rapid Development Framework Series Tutorial IV (delete data)
5. CRL Rapid Development Framework Series tutorial five (using cache)
6. CRL Rapid Development Framework Series Tutorial VI (Distributed cache solution)
7. CRL Rapid Development Framework Series Tutorial VII (using transactions)
8. CRL Rapid Development Framework Series tutorial eight (using Crl.package)
9. CRL Rapid Development Framework Series Tutorial nine (Import/Export data)
10. CRL Rapid Development Framework Series Tutorial 10 (Export object structure)
11. CRL Rapid Development Framework Series Tutorial 11 (Big Data sub-database sub-table solutions)
12. CRL Rapid Development Framework Series Tutorial 12 (MongoDB support)

Body

As with updates, there are several ways to delete

Specify conditional deletions by expression

Code.ProductDataManage.Instance.Delete (b = b.id = = 0)

Delete by primary key

The primary key value of the incoming phase type, or the object

By object actually also by primary key Delete

Code.ProductDataManage.Instance.Delete (1); Code.ProductDataManage.Instance.Delete (New Productdata () {Id = 1});

Associate Delete

Delete by SQL Association

var query = Code.ProductDataManage.Instance.GetLambdaQuery ();            Query. Where (b = b.id = = ten);            Query. Join<code.member> ((a, b) = = A.supplierid = = "Ten" && b.name = = "123");            Code.ProductDataManage.Instance.Delete (query);

　　

CRL Rapid Development Framework Series Tutorial IV (delete data)