编译器错误：未定义用户定义的类型 [英] Compiler Error: User-defined types not defined

问题描述

我在这一行得到编译时错误用户定义的类型未定义：

I get the compile-time error "User-defined types not defined" on this line:

Dim cn As ADODB.Connection

可能有什么问题？

代码：

Sub test()

    Dim cn As ADODB.Connection

    'Not the best way to get the name, just convenient for notes

    strFile = Workbooks(1).FullName
    strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strFile & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1"";"
    Set cn = CreateObject("ADODB.Connection")
    'For this to work, you must create a DSN and use the name in place of

    'DSNName

    'strSQL = "INSERT INTO [ODBC;DSN=DSNName;].NameOfMySQLTable " & "Select AnyField As NameOfMySQLField FROM [Sheet1$];"
     strSQL = "SELECT F1 FROM [Sheet1$];"
     cn.Execute strSQL
End Sub

推荐答案

我忘了添加Microsoft ActiveX数据对象2.5库的引用：

I had forgotten to add a reference to "Microsoft ActiveX Data Objects 2.5 Library":

工具>参考>检查Microsoft ActiveX数据对象前面的复选框2.5图书馆

Tools > References > Check the checkbox in front of "Microsoft ActiveX Data Objects 2.5 Library"

这篇关于编译器错误：未定义用户定义的类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！