将数字转换为Excel Letter列vb.net

我正在尝试使用vb.net将数据写入excel文件 . 所以我的函数将数字列转换为excel字母列 .

Public Function ConvertToLetter(ByRef iCol As Integer) As String

    Dim Reminder_Part As Integer = iCol Mod 26
    Dim Integer_Part As Integer = Int(iCol / 26)

    If Integer_Part = 0 Then
        ConvertToLetter = Chr(Reminder_Part + 64)
    ElseIf Integer_Part > 0 And Reminder_Part <> 0 Then
        ConvertToLetter = Chr(Integer_Part + 64) + Chr(Reminder_Part + 64)
    ElseIf Integer_Part > 0 And Reminder_Part = 0 Then
        ConvertToLetter = Chr(Integer_Part * 26 + 64)
    End If


End Function

该功能适用于任何其他数字 .

例如,

  • 1 => A.

  • 2 => B.

  • ......

  • 26 => Z.

  • 27 => AA

  • ......

  • 51 => AY

  • 52 => t(这是它开始出错的时候)假设返回AZ,但它返回了t .

我无法弄清楚我犯了什么错误 . 有人可以帮我或者告诉我如何编写使用vb.net将数字转换为excel字母列的正确功能 .

回答(3)

2 years ago

这应该做你想要的 .

Private Function GetExcelColumnName(columnNumber As Integer) As String
    Dim dividend As Integer = columnNumber
    Dim columnName As String = String.Empty
    Dim modulo As Integer

    While dividend > 0
       modulo = (dividend - 1) Mod 26
       columnName = Convert.ToChar(65 + modulo).ToString() & columnName
       dividend = CInt((dividend - modulo) / 26)
   End While

   Return columnName
End Function

2 years ago

这将最多工作52 .

Public Function ConvertToLetterA(ByRef iCol As Integer) As String

        Select Case iCol
            Case 1 To 26
                Return Chr(iCol + 64)

            Case 27 To 52
                Return "A" & Chr(iCol - 26 + 64)

        End Select

End Function

另外,您可以通过.Net直接使用EPPlus编写XLSX文件 . 如果您愿意,可以使用字母表示法,或者您可以使用数字 .

2 years ago

逻辑中存在一些缺陷,第二个else子句不是必需的,操作应该基于零 .

Public Function ConvertToLetter(ByRef iCol As Integer) As String
    Dim col As Integer = iCol - 1
    Dim Reminder_Part As Integer = col Mod 26
    Dim Integer_Part As Integer = Int(col / 26)

    If Integer_Part = 0 Then
        ConvertToLetter = Chr(Reminder_Part + 65)
    Else
        ConvertToLetter = Chr(Integer_Part + 64) + Chr(Reminder_Part + 65)
    End If


End Function