我正在尝试在Excel中编写一个函数,根据存储在其他三个单元格中的值设置活动单元格的背景颜色(这三个单元格中的每一个都存储0到255之间的数值,具体取决于颜色R,G或B)。
因此A1单元格为150,B1单元格为220,C1单元格为90(即RGB(150,220,90))。我需要D1单元格的颜色是之前声明的RGB(某种绿色),而且,如果我将函数放在D2中,它将选择存储在A2,B2和C2中的RGB,依此类推...... / p>
这可以实现吗?
答案 0 :(得分:13)
UDF版本:
Function myRGB(r, g, b)
Dim clr As Long, src As Range, sht As String, f, v
If IsEmpty(r) Or IsEmpty(g) Or IsEmpty(b) Then
clr = vbWhite
Else
clr = RGB(r, g, b)
End If
Set src = Application.ThisCell
sht = src.Parent.Name
f = "Changeit(""" & sht & """,""" & _
src.Address(False, False) & """," & clr & ")"
src.Parent.Evaluate f
myRGB = ""
End Function
Sub ChangeIt(sht, c, clr As Long)
ThisWorkbook.Sheets(sht).Range(c).Interior.Color = clr
End Sub
用法(在D1中输入):
=myRGB(A1,B1,C1)
答案 1 :(得分:4)
在 D1 中输入:
=A1 & "," & B1 & "," & C1
并在工作表代码区域中输入以下事件宏:
Private Sub Worksheet_Calculate()
Range("D1").Interior.Color = RGB(Range("A1"), Range("B1"), Range("C1"))
End Sub
答案 2 :(得分:1)
假设您希望这可以使用整个列而不是第1行,这里是工作表代码模块的VBA过程:
Private Sub Worksheet_Change(ByVal Target As Range)
With Target
If .Count = 1 Then
If .Column < 4 Then
Cells(.Row, 4).Interior.Color = RGB(Cells(.Row, 1), Cells(.Row, 2), Cells(.Row, 3))
End If
End If
End With
End Sub
注意:我不知道你的意思如下,所以没有解决它:and also, if I place the function in D2, it will select the RGB stored in A2, B2 and C2
。
答案 3 :(得分:0)
我想补充一下蒂姆·威廉姆斯的绝妙答案。我需要能够根据其他单元格在我的单元格中显示一个十六进制值。因此,我也希望将字体设置为白色或黑色。所以我将功能修改如下:
Function hexColor(r, g, b)
Dim bclr As Long, fclr As Long, src As Range, sht As String, f, v
If IsEmpty(r) Or IsEmpty(g) Or IsEmpty(b) Then
bclr = vbWhite
fclr = vbBlack
Else
bclr = RGB(r, g, b)
If ((r * 0.299) + (g * 0.587) + (b * 0.114) > 186) Then
fclr = vbBlack
Else
fclr = vbWhite
End If
End If
Set src = Application.ThisCell
sht = src.Parent.Name
f = "Changeit(""" & sht & """,""" & _
src.Address(False, False) & """," & bclr & "," & fclr & ")"
src.Parent.Evaluate f
Dim hr As String, hg As String, hb As String
hr = Right("0" & Hex(r), 2)
hg = Right("0" & Hex(g), 2)
hb = Right("0" & Hex(b), 2)
hexColor = "#" & hr & hg & hb
End Function
Sub ChangeIt(sht, c, bclr As Long, fclr As Long)
ThisWorkbook.Sheets(sht).Range(c).Interior.Color = bclr
ThisWorkbook.Sheets(sht).Range(c).Font.Color = fclr
End Sub
这意味着我可以输入以下两个单元格值:=hexColor(185,201,225)
和
=hexColor(115,146,198)
并获得以下结果: