module1 entity framework入門微軟認(rèn)證程序開發(fā)專家MCPD

華Windows8和WindowsPhone開Windows8和WindowsPhone開免 技術(shù)課Windows8：Windows8：aka.ms/learn8WindowsPhone:aka.ms/learnwpMSDN訂閱是您獲得完成下一個(gè)挑/ 不同技術(shù)方向的100余門課程，從而提升自己

WindowsWindows

WindowsVisualStudioHTMLAnd

EntityEntitySELECTSELECTVALUEcfromAdventureWorksEntities.ContactsascOrderByc.LastNameSELECTVALUErEntityLooksandbehavesliketraditionalSQLCanreturnentityobjects edasrWHEREEntitySQLcan ceholdersforSELECTVALUErEntitySQLworkswithtable-per-typeEntitySQL在您的代碼顯EntityObjectQueryEntity

stringqueryString= asrWHEREr.ContactID=@contactID";ObjectQuery<Contact>queryList<Contact>results=Entity???EntityConnectionEntityConnectionconnection=newstringstringq="SELECTVALUEASrWHEREmandcmd mand(q,p.ParameterName="rewardID";p.Value=EntityParameterEntitySQLmand new

class與與與

fromcincontactswherec.ContactTypeID=select

fromcincontactswherec.ContactTypeID=5selectc;Contactcontact=results[0];stringlastName=contact.LastName;

你可以屬性中定義的概念Contactcontact=results[0];=LINQtoSQLObjectEntityClass

SQLServer????Foreign-keyrelationshipStoredprocedureorfunction????m (Storage=(Storage="employees",OtherKey=][Visual] 構(gòu)建一個(gè)LINQ構(gòu)建一個(gè)LINQtoSQL123 Entity使用標(biāo)準(zhǔn)的LINQ查詢運(yùn)算符,比如Where和Selectvarquery=fromcincustomersselect

起在LINQtoSQL查詢e Windows8和WindowsWindows8和WindowsPhone開發(fā)過程面向軟件開發(fā)者的信息服免 技術(shù)課W