在操作文档中有数据导出的代码如下，现在遇到的问题是：
如果表中某个单元格数据为空，导出的表显示该单元格的值是0，而不是空；如何让导出的表格和原始表格一样也为空？
Dim dt As Table = Tables("表1")
Dim nms() As String = {"A列", "B列", "C列", "D列"} '要导出的列名
Dim caps() As String = {"A列", "B列", "C列", "D列"} '对应的列标题
Dim Book As New XLS.Book '定义一个Excel工作簿
Dim Sheet As XLS.Sheet = Book.Sheets(0) '引用工作簿的第一个工作表
Dim st As XLS.Style = Book.NewStyle '日期列的显示格式
st.Format = "yyyy-MM-dd"
For c As Integer = 0 To nms.length - 1
Sheet(0, c).Value = caps(c) '指定列标题
If dt.Cols(nms(c)).IsDate Then '如果是日期列
Sheet.Cols(c).Style = st '设置显示格式
End If
Next
For r As Integer = 0 To dt.Rows.Count - 1 '填入数据
For c As Integer = 0 To nms.length - 1
Sheet(r + 1, c).Value = dt.rows(r)(nms(c))
Next
Next
Dim dlg As New SaveFileDialog '定义一个新的SaveFileDialog
dlg.Filter = "Excel文件|*.xls" '设置筛选器
If dlg.ShowDialog = DialogResult.Ok Then
Book.Save(dlg.FileName)
Dim Proc As New Process
Proc.File = dlg.FileName
Proc.Start()
End If
[此贴子已经被作者于2023/6/25 22:21:39编辑过]
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Post By：2023/6/25 22:21:00 [显示全部帖子]
