How to call up TextBoxes in a loop using the loop variable as part of the Textbox name

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VB

I am trying to use data from four textboxes and create the values to be put in four other textboxes on another form. I need to do this for eight teams so need to loop through eight times.
My code is as follows;
Dim Handi(3) As Integer
Dim minHC As Integer
Dim A, B, C, D As Double
Dim HandC1, HandC2, HandC3, HandC4 As TextBox
Dim HandCName1, HandCName2, HandCName3, HandCName4 As String
Dim SA1, SA2, SA3, SA4 As TextBox
Dim SAName1, SAName2, SAName3, SAName4 As String

MatchDetailsFrm.Show()

' loop through each of the eight teams.
For i = 1 To 8
'Generate the names for the four textboxes per team containing data.
HandCName1 = "HC" & ((2 * i) - 1)
HandCName2 = "HC" & (2 * i)
HandCName3 = "VHC" & ((2 * i) - 1)
HandCName4 = "VHC" & (2 * i)

HandC1 = CType(Me.Controls(HandCName1), TextBox)
HandC2 = CType(Me.Controls(HandCName2), TextBox)
HandC3 = CType(Me.Controls(HandCName3), TextBox)
HandC4 = CType(Me.Controls(HandCName4), TextBox)

'Generate the names for the text boxes to load the calculated data.
SAName1 = "TextBox" & (61 + (4 * i))
SAName2 = "TextBox" & (63 + (4 * i))
SAName3 = "TextBox" & (30 + (4 * i))
SAName4 = "TextBox" & (32 + (4 * i))
SA1 = CType(MatchDetailsFrm.Controls(SAName1), TextBox)
SA2 = CType(MatchDetailsFrm.Controls(SAName2), TextBox)
SA3 = CType(MatchDetailsFrm.Controls(SAName3), TextBox)
SA4 = CType(MatchDetailsFrm.Controls(SAName4), TextBox)
'Load the array Handi() with the data from the textboxes.
Handi(0) = Val(HandC1.Text)
Handi(1) = Val(HandC2.Text)
Handi(2) = Val(HandC3.Text)
Handi(3) = Val(HandC4.Text)

'Set minimum value
minHC = 100

'Find lowest value in the array
For Each element As Integer In Handi
minHC = Math.Min(minHC, element)
Next

'Calculate the new values and load onto the textboxes on the MatchDetailsFrm
A = Math.Round((HandC1.Text - minHC) * 0.75, MidpointRounding.AwayFromZero)
MatchDetailsFrm.SA1.Text = A
B = Math.Round((HandC2.Text - minHC) * 0.75, MidpointRounding.AwayFromZero)
MatchDetailsFrm.SA2.Text = B
C = Math.Round((HandC3.Text - minHC) * 0.75, MidpointRounding.AwayFromZero)
MatchDetailsFrm.SA3.Text = C
D = Math.Round((HandC4.Text - minHC) * 0.75, MidpointRounding.AwayFromZero)
MatchDetailsFrm.SA4.Text = D

Next

However I get this coding error;
'SA1' is not a member of MatchDetailsFrm'
when I try to set the textbox with this line of code;
MatchDetailsFrm.SA1.Text = A

Can anybody help me here?
Dave