如何使用另存为对话框将创建的 Excel 实例保存到客户端磁盘
在项目中,当用户单击按钮时,互操作库会获取一些数据并将其写入 Excel 实例。
现在,我希望:当Excel实例获取所有数据时,必须打开另存为对话框并将该Excel实例保存到用户指定的路径。
有办法做到吗?
编辑:
我将数据获取到 Excel 的代码在这里:
Public Sub ExportToExcel(ByVal dt As DataTable, ByVal outputPath As String)
' Create the Excel Application object
Dim excelApp As New Microsoft.Office.Interop.Excel.ApplicationClass
' Create a new Excel Workbook
Dim excelWorkbook As Excel.Workbook = excelApp.Workbooks.Add(Type.Missing)
Dim excelSheet As Excel.Worksheet = excelWorkbook.Worksheets(1)
excelApp.Visible = True
' Copy each DataTable as a new Sheet
'sheetIndex += 1
'' Create a new Sheet
'excelSheet = CType( _
' excelWorkbook.Sheets.Add(excelWorkbook.Sheets(sheetIndex), _
' Type.Missing, 1, Microsoft.Office.Interop.Excel.XlSheetType.xlWorksheet), Microsoft.Office.Interop.Excel.Worksheet)
excelSheet.Name = "Bayi"
' Copy the column names (cell-by-cell)
For col = 0 To dt.Columns.Count - 1
excelSheet.Cells(1, col + 1) = dt.Columns(col).ColumnName
Next
CType(excelSheet.Rows(1, Type.Missing), Microsoft.Office.Interop.Excel.Range).Font.Bold = True
' Copy the values (cell-by-cell)
For col = 0 To dt.Columns.Count - 1
For row = 0 To dt.Rows.Count - 1
excelSheet.Cells(row + 2, col + 1) = dt.Rows(row).ItemArray(col)
Next
Next
excelSheet = Nothing
' Save and Close the Workbook
excelWorkbook.SaveAs(outputPath, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, Type.Missing, _
Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, _
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing)
excelWorkbook.Close(True, Type.Missing, Type.Missing)
excelWorkbook = Nothing
' Release the Application object
excelApp.Quit()
excelApp = Nothing
' Collect the unreferenced objects
GC.Collect()
GC.WaitForPendingFinalizers()
End Sub
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我不确定这是否是您想要的,但是如果您想让用户下载您在服务器端创建的 excel 文件,那么只需将 excel 文件的内容写入响应,设置正确的哑剧类型 - 就这样!
PS 不要忘记清除当前生成的响应。
I am not sure, that this is what you want, but if you want to let a user download an excel file, that you've created on the server side, then just write the content of the excel file to the Response, set the correct mime type - and there you go!
P.S. Don't forget to clear the currently generated response.
如果您尝试从网络服务器将其添加到客户端,则不可能出现这种情况。不让你在客户端安装flash/silverlight或者类似的东西,就超越了浏览器客户端软件的安全性。
更新:
她是“快速浏览 Silverlight 3:保存文件对话框"
以及如何在 JavaScript 中读写文件
If u try to add it to the client from a webserver, there is no way that case. Without getting you to install a flash / silverlight on the client or something similar, to go beyond the security of the browser client software.
Updated:
Her is "A quick look at Silverlight 3: Save File Dialog"
And How to read and write files in JavaScript