Question

我在excel文件中有一个名为“Employee_States_File”的表。此表包含两列Name和States。两列都填充了数据。省表包含诸如“NE，WA”等国家的缩写。我有另一个名为“States_File”的excel文件，其中包含一个包含两列的表：缩写和FullStateName。该表被视为查找表，用于根据缩写查找完整的状态名称。现在，我想在VB6中编写一个代码，以便当用户单击一个按钮时，excel文件“Employee_States”表中的所有缩写名称都将根据excel表的查找表更改为完整的州名“ States_File”。是否有意义？请帮忙，

Answer 1

如果允许将它们转换为csv文件（逗号分隔的文本文件），则可以使用Jet数据库引擎并执行常规SQL连接。

我用它来设置连接。

Public Function OpenTextConnection(ByVal FileName As String) As Connection
    Dim FSO As FileSystemObject
    Dim DBFolder As String
    Dim TS As TextStream

    Set FSO = New FileSystemObject
    DBFolder = FSO.GetParentFolderName(FileName)

    If FSO.FileExists(FSO.BuildPath(DBFolder, "Schema.ini")) Then
        FSO.DeleteFile (FSO.BuildPath(DBFolder, "Schema.ini"))
    End If

    Set TS = FSO.CreateTextFile(FSO.BuildPath(DBFolder, "Schema.ini"))
    TS.WriteLine "[" & FSO.GetFileName(FileName) & "]"
    TS.WriteLine "Format=CSVDelimited"
    TS.WriteLine "ColNameHeader = True"
    TS.WriteLine "MaxScanRows = 0"
    TS.Close

    Set OpenTextConnection = New Connection


    If FSO.FolderExists(DBFolder) Then
        OpenTextConnection.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & DBFolder & ";Extended Properties=""text;HDR=Yes;FMT=Delimited;"";"
    Else
        MsgBox DBFolder & " Does not exists.", vbExclamation
    End If

End Function

每个文件都是连接中的表，您可以执行SQL连接。请注意，该示例只是一个简单的打开表。您可以使用任何有效的SQL语法。

Dim DB1 As Connection
Dim TB As Recordset
Dim FSO As FileSystemObject
Dim tImport As New DBImportList
Set FSO = New FileSystemObject
Set tImport = New DBImportList
If FSO.FileExists(FileName) Then
    Set DB1 = OpenTextConnection(FileName)
    Set TB = New Recordset

    TB.Open "SELECT * FROM [" & FSO.GetFile(FileName).Name & "]", DB1, adOpenKeyset, adLockOptimistic, adCmdText

End If

VB6中的查找功能

1 个答案: