帮忙看看这段代码为什么有错?

[windata]

Public Function ExporToExcel(strOpen As String)
'*********************************************************
'* 名称：ExporToExcel
'* 功能：导出数据到EXCEL
'* 用法：ExporToExcel(sql查询字符串)
'*********************************************************
Dim Rs_Data As New ADODB.Recordset
Dim Irowcount As Integer
Dim Icolcount As Integer

Dim xlApp As New Excel.Application
Dim xlBook As Excel.Workbook
Dim xlSheet As Excel.Worksheet
Dim xlQuery As Excel.QueryTable

With Rs_Data
If .State = adStateOpen Then
.Close
End If
.ActiveConnection = Cn
.CursorLocation = adUseClient
.CursorType = adOpenStatic
.LockType = adLockReadOnly
.Source = strOpen
.Open
End With

★★,执行到上头.open的时候出错,提示为 "没有为命令对象设置命令"
是我ado的问题?可我已经增加了一个ado了



With Rs_Data
If .RecordCount < 1 Then
MsgBox ("没有记录!")
Exit Function
End If
'记录总数
Irowcount = .RecordCount
'字段总数
Icolcount = .Fields.Count
End With

Set xlApp = CreateObject("Excel.Application")
Set xlBook = Nothing
Set xlSheet = Nothing
Set xlBook = xlApp.Workbooks().Add
Set xlSheet = xlBook.Worksheets("sheet1")
xlApp.Visible = True

'添加查询语句，导入EXCEL数据
Set xlQuery = xlSheet.QueryTables.Add(Rs_Data, xlSheet.Range("a1"))

With xlQuery
.FieldNames = True
.RowNumbers = False
.FillAdjacentFormulas = False
.PreserveFormatting = True
.RefreshOnFileOpen = False
.BackgroundQuery = True
.RefreshStyle = xlInsertDeleteCells
.SavePassword = True
.SaveData = True
.AdjustColumnWidth = True
.RefreshPeriod = 0
.PreserveColumnInfo = True
End With

xlQuery.FieldNames = True '显示字段名
xlQuery.Refresh

With xlSheet
.Range(.Cells(1, 1), .Cells(1, Icolcount)).Font.Name = "黑体"
'设标题为黑体字
.Range(.Cells(1, 1), .Cells(1, Icolcount)).Font.Bold = True
'标题字体加粗
.Range(.Cells(1, 1), .Cells(Irowcount + 1, Icolcount)).Borders.LineStyle = xlContinuous
'设表格边框样式
End With

With xlSheet.PageSetup
.LeftHeader = "" & Chr(10) & "&""楷体_GB2312,常规""&10公司名称：" ' & Gsmc
.CenterHeader = "&""楷体_GB2312,常规""公司人员情况表&""宋体,常规""" & Chr(10) & "&""楷体_GB2312,常规""&10日 期："
.RightHeader = "" & Chr(10) & "&""楷体_GB2312,常规""&10单位："
.LeftFooter = "&""楷体_GB2312,常规""&10制表人："
.CenterFooter = "&""楷体_GB2312,常规""&10制表日期："
.RightFooter = "&""楷体_GB2312,常规""&10第&P页 共&N页"
End With

xlApp.Application.Visible = True
Set xlApp = Nothing '"交还控制给Excel
Set xlBook = Nothing
Set xlSheet = Nothing

End Function

[windata]

Public Function ExporToExcel()
'*********************************************************
'* 名称：ExporToExcel
'* 功能：导出数据到EXCEL
'* 用法：ExporToExcel(sql查询字符串)
'*********************************************************
Dim Rs_Data As New ADODB.Recordset
Dim Irowcount As Integer
Dim Icolcount As Integer

Dim xlApp As New Excel.Application
Dim xlBook As Excel.Workbook
Dim xlSheet As Excel.Worksheet
Dim xlQuery As Excel.QueryTable

With Rs_Data
If .State = adStateOpen Then
.Close
End If
.ActiveConnection = "dsn=tt"
.CursorLocation = adUseClient
.CursorType = adOpenStatic
.LockType = adLockReadOnly
.Source = strOpen
.Open
End With

.
.
.
★★,执行到上头.open的时候出错,提示为 "没有为命令对象设置命令"
是我ado的问题?可我已经增加了一个ado了

[XLYT]

activeconnection应该是一个连接的名称，另外，stropen赋值了吗？

[of123]

你必须声明并打开一个Connection对象。
dim cnn as adodb.connection
set cnn = new adodb.connection
cnn.open "......."

[np2001]

strOpen 应该是个sql 语句,比如select * from dbname

[crystal_heart]

没有 new 出对象