在每行中唯一地为单元格着色

debugcn 发表于 Dev

维皮尔

我想为我的Excel工作表中的数据上色：

我需要分别查看每一行，并为具有相等数据值的单元格上色相同的颜色。

下面的代码对前10行中的所有数据进行迭代，并对每个单元格进行不同的着色。我不确定该如何记住有色单元格及其颜色，如果当前单元格已在该行的列表中被记住，则应用该颜色而不是新颜色。

在vba中有什么可用作动态列表吗？如何？

Sub Test1()

    Dim x As Integer, rowInt As Integer, color As Integer
    Application.ScreenUpdating = False

    For rowInt = 1 To 10
        color = 3

        'numRows = number of cells before the first blank cell in the row ("A" & rowInt)
        numRows = Range("A" & rowInt, Range("A" & rowInt).End(xlToRight)).Columns.Count
        If numRows >= 16384 Then
            numRows = 1
        End If

        Range("A" & rowInt).Select
        For x = 1 To numRows

            With Selection.Interior
                .ColorIndex = color
                .Pattern = xlSolid
            End With

            color = color + 1

            ActiveCell.Offset(0, 1).Select
        Next
    Next

    Application.ScreenUpdating = True

End Sub

保罗·比卡

您可以使用字典来捕获唯一值的颜色索引

Option Explicit

Public Sub ColorUniquesByRows()
    Const START_ROW = 2
    Dim ur As Range, arr As Variant, clrIndex As Long, i As Long, j As Long, ci As Long
    Dim cArr As Variant, r As Long, g As Long, b As Long, a As Double, d As Object

    Set ur = Sheet1.UsedRange   'Or ThisWorkbook.Worksheets("Sheet1").UsedRange
    Set d = CreateObject("Scripting.Dictionary")
    Application.ScreenUpdating = False
    arr = ur
    clrIndex = 3
    For i = START_ROW To UBound(arr)            'Iterate each row
        For j = 1 To UBound(arr, 2)             'Iterate each column (in current row)
            If Len(arr(i, j)) > 0 Then          'Ignore empty cells
                If Not d.Exists(arr(i, j)) Then 'Capture color index for each unique value
                    If clrIndex > 56 Then clrIndex = 3  'More than 56 columns - reset indx
                    ci = ThisWorkbook.Colors(clrIndex)  'Determine font color vs clr index
                    r = ci Mod 256: g = ci \ 256 Mod 256:   b = ci \ 65536 Mod 256
                    a = 1 - ((0.299 * r) + (0.587 * g) + (0.144 * b)) / 255
                    d(arr(i, j)) = clrIndex & " " & IIf(a < 0.5, vbBlack, vbWhite)
                    clrIndex = clrIndex + 1
                End If
                cArr = Split(d(arr(i, j)))
                With ur.Cells(i, j)
                    .Interior.colorIndex = cArr(0)
                    .Font.Color = cArr(1)
                End With
            End If
        Next j
        clrIndex = 3    'moving to next row: reset color index and dictionary object
        Set d = CreateObject("Scripting.Dictionary")
    Next i
    Application.ScreenUpdating = True
End Sub

注意：这也会根据背景颜色确定字体颜色

结果