linq - Related information

• How does an IQueryable whose Linq returns an anonymous type get its number of records?

  the following Linq query returns IQueryable of anonymous type: var users2 = from u1 in Users join u2 in distribs on u1.pDistribId equals u2.Id into temp from u3 in temp.DefaultIfEmpty() select new { ...

  C-sharp linq anonymous-class

  Jun.27,2021
• How do I automatically add comments to LinqToSql's dbml file?

  LinqToSql database query method is: first create a dbml file, and then drag the tables in the database you need directly into the dbml editing interface. Like this: when dragged in like this, the entity classes corresponding to these tables are aut...

  Sql linq .net c-sharp

  Mar.28,2021
• Why can't JObject call the linq method?

  Newtonsoft.Json.Linq.JObject clearly implements IEnumerable < T > , specifically IEnumerable < KeyValuePair < string, JToken > , after reading the metadata and source code, it is not explicitly implemented. It is said that objects of type JObject ...

  Linq .net json newtonsoft.json c-sharp

  Mar.10,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3ac39-2c231.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3ac39-2c231.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?