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Understanding CursorAdapter methods
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9 SP1
Divers
Thread ID:
01475311
Message ID:
01475414
Vues:
21
>
>You should start with that :-))))
>
>   oCA=CREATEOBJECT("CA_SCOPE_IDENTITY")    
>   BROWSE NORMAL
>   IF TABLEUPDATE(1, .t.)
>       BROWSE NORMAL
>   ELSE
>      AERROR(aaa)
>      MessageBox(aaa[2])
>   ENDIF
>
>
>DEFINE CLASS CA_SCOPE_IDENTITY AS CursorAdapter 
>     DataSourceType = [ADO]
>     Alias = "cTest"
>     BufferModeOverride = 5
>     SelectCmd = "select * from TestTable"
>     CursorSchema="Id I, name Varchar(20)"
>     UseCursorSchema= .T.    
>     Tables = "Dostav"
>     UpdatableFieldList="name, BulStat, Address"
>     UpdateNameList="Id TestTable.Id, name TestTable.Name"
>     KeyFieldList="Id"  
>     AutoUpdate = "Id"
> 
>     PROCEDURE Init
>        LOCAL nAutoRefreshConn AS ADODB.Connection
>        nAutoRefreshConn=CREATEOBJECT([ADODB.Connection])
>        nAutoRefreshConn.ConnectionString = [Provider=SQLNCLI;Server=(local);Database=TestDB;Trusted_Connection=yes;]
>        nAutoRefreshConn.Open()
>
>        nCommand =CREATEOBJECT([ADODB.Command])
>        nCommand.ActiveConnection = nAutoRefreshConn
>        nRS =CREATEOBJECT([ADODB.RecordSet])
>        nRS.ActiveConnection = nAutoRefreshConn
>        this.DataSource = nRS
>
>        this.UpdateCmdDataSourceType = [ADO]
>        this.InsertCmdDataSourceType = [ADO]
>        this.DeleteCmdDataSourceType = [ADO]
>        
>        this.UpdateCmdDataSource = nCommand
>        this.InsertCmdDataSource = nCommand
>        this.DeleteCmdDataSource = nCommand
>        
>        IF NOT this.CursorFill(.t.,.f.,0, nCommand)
>           AERROR(aaa)
>           MessageBox(aaa[2])
>        ENDIF
>     ENDPROC
> 
> 
>    PROCEDURE BeforeInsert(cFldState, lForce, cInsertCmd)
>
>            IF LEN(ALLTRIM(this.AutoUpdate))>0  
>                cInsertCmd = cInsertCmd + ;  
>                    "; DECLARE @id int; SELECT @id = SCOPE_IDENTITY()" + ;  
>                    "; EXEC Get_ValHelper @id, ?@" + ;  
>                    this.Alias + "." + ALLTRIM(this.AutoUpdate)+ " OUTPUT" && In ADO the OUTPUT here is mandatory.
>            ENDIF  
>    ENDPROC     
>ENDDEFINE
>
>
This code works. Let me see if I can see what it has different from mine. Thank you.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
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