VB.NET2003中Excel的使用及相关问题的解决方法.

 1.ActiveX组件的引用:
2.实现示例代码:
3.相关问题:
a.new Excel.Application()会报出“拒绝访问”？

1.ActiveX组件的引用:
Microsoft Excel 11.0 Object Library

2.实现示例代码:
        '输出文件名
        Dim printBookName As String = ""
        '类声明
        Dim excelApp As Excel.Application
        '文件名
        Dim excelBook As Excel.Workbook
        '页
        Dim excelSheet As Excel.Worksheet
        'EXCEL模板名
        Dim strTemplateBookName As String
        '页名
        Dim sheetName As String
        '数据开始行
        Dim nStartRowNo As Integer = 7

        '模板文件夹路径
        strTemplateBookName = "C:/Inetpub/wwwroot/Test/template/template.xls"
        '输出文件名
        printBookName = "C:/Inetpub/wwwroot/Test/download/"
        printBookName += "data_" + Date.Now().ToString("yyyyMMddHHmmss") + ".xls"
        '页名
        sheetName = "Data1"

        '数据处理
        Try
            '模板文件复制
            FileCopy(strTemplateBookName, printBookName)
            System.IO.File.SetAttributes(printBookName, IO.FileAttributes.Normal)
            '声明
            excelApp = New Excel.Application
            '文件打开
            excelBook = excelApp.Workbooks.Open(printBookName)
            '页的选择
            excelSheet = excelBook.Sheets(sheetName)

            '标题的设定
            excelSheet.Range("A1").Value = Me.lblPageTitle.Text

            '数据的设定(其中tblData的定义是:Protected WithEvents tblData As System.Web.UI.WebControls.Table)
            For cnt As Integer = 1 To tblData.Rows.Count - 1
                'CHECKBOX列的设置
                If CType(Page.FindControl("chk1" + (cnt - 1).ToString()), CheckBox).Checked = True Then
                    excelSheet.Range("A" + (nStartRowNo + cnt).ToString()).Value = "有"
                ElseIf CType(Page.FindControl("chk1" + (cnt - 1).ToString()), CheckBox).Checked = False Then
                    excelSheet.Range("A" + (nStartRowNo + cnt).ToString()).Value = "无"
                End If
                '给CELL加边框
                excelSheet.Range("A" + (nStartRowNo + cnt).ToString()).Borders.LineStyle = Excel.XlLineStyle.xlContinuous
                '内容2(将tblData的值赋给CELL）
                excelSheet.Range("B" + (nStartRowNo + cnt).ToString()).Value = tblData.Rows.Item(cnt).Cells.Item(2).Text.ToString()
                excelSheet.Range("B" + (nStartRowNo + cnt).ToString()).Borders.LineStyle = Excel.XlLineStyle.xlContinuous
            Next
        Catch ex As Exception
        Finally
            If Not excelBook Is Nothing Then
                ' 对象释放处理
                excelBook.Save()
                excelBook.Close()
            End If
            ' 对象释放处理
            If Not excelApp Is Nothing Then
                excelApp.Quit()
                System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp)
                excelSheet = Nothing
                excelBook = Nothing
                excelApp = Nothing
                GC.Collect()
            End If
        End Try

3.相关问题:
a.new Excel.Application()会报出“拒绝访问”？
方法1:
"开始"---》"运行"---》输入"dcomcnfg"---》应用程序---》Microsoft   Excel应用程序---》属性---》安全性---》您可以编辑能启动该应用程序的用户---》添加账号ASPNET。
方法2：
在web.config  
  <configuration>   
      <system.web>中加入  
  <identity   impersonate="true"/>