标签:Function Dim VB rs 对象 Byt KeyName ADODB 序列化
'序列化类对象为二进制流
Public Function ObjectToBinary(ByVal KeyName As String, Obj As Object) As Byte()
Dim Byt() As Byte
Dim objBag As New PropertyBag
If Obj Is Nothing Or Len(KeyName) = 0 Then Exit Function
objBag.WriteProperty KeyName, Obj
Byt = objBag.Contents
ObjectToBinary = Byt
End Function
'从二进制流加载对象
Public Function BinaryToObject(ByVal KeyName As String, Byt() As Byte) As Object
Dim oP As New PropertyBag
If Len(KeyName) = 0 Then Exit Function
oP.Contents = Byt
Set BinaryToObject = oP.ReadProperty(KeyName)
End Function
'记录集对象序列化为二进制流
'传入的记录集游标需要为 CursorLocation = adUseClient 否则 rs.Save s, adPersistADTG 会报错
Public Function RecordsetToBinary(rs As ADODB.Recordset) As Byte()
Dim s As New ADODB.Stream
s.Open
s.Type = adTypeBinary
rs.Save s, adPersistADTG
RecordsetToBinary = s.Read()
Set s = Nothing
End Function
'二进制流转换为记录集
Public Function BinaryToRecordset(Byt() As Byte) As ADODB.Recordset
Dim s As New ADODB.Stream
Dim rs As New ADODB.Recordset
s.Open
s.Type = adTypeBinary
s.Write Byt
s.Position = 0
rs.Open s
Set BinaryToRecordset = rs
End Function
标签:Function,Dim,VB,rs,对象,Byt,KeyName,ADODB,序列化 来源: https://blog.csdn.net/KingZhang2000/article/details/88614880
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