将数字转换为Excel Letter列vb.net

Question

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.

Answer 1

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