Api.RetrieveColumnAsInt32 方法 (JET_SESID、JET_TABLEID、JET_COLUMNID、RetrieveColumnGrbit)

项目
06/13/2023

从当前记录中检索 int32 列值。记录是与光标当前位置的索引项关联的记录。

Namespace：Microsoft.Isam.Esent.Interop
装配： Microsoft.Isam.Esent.Interop.dll) 中的 Microsoft.Isam.Esent.Interop (

语法

'Declaration
Public Shared Function RetrieveColumnAsInt32 ( _
    sesid As JET_SESID, _
    tableid As JET_TABLEID, _
    columnid As JET_COLUMNID, _
    grbit As RetrieveColumnGrbit _
) As Nullable(Of Integer)
'Usage
Dim sesid As JET_SESID
Dim tableid As JET_TABLEID
Dim columnid As JET_COLUMNID
Dim grbit As RetrieveColumnGrbit
Dim returnValue As Nullable(Of Integer)

returnValue = Api.RetrieveColumnAsInt32(sesid, _
    tableid, columnid, grbit)

public static Nullable<int> RetrieveColumnAsInt32(
    JET_SESID sesid,
    JET_TABLEID tableid,
    JET_COLUMNID columnid,
    RetrieveColumnGrbit grbit
)