Highlight field background in continuous form - vba

Question

I have an Access continuous form. I would like to change the forecolor of a specific record's field.
I have the field to highlight from the FieldModified field. So for example FieldModified = "Converted". Converted being a field on my form.
I would like to change the color of the "Converted" field, and do this for each record in the form.
I thought this code would work, but I get an error on Me.[FieldModified].ForeColor. And I need to do this for each record in the form.
Code:
Private Sub Form_Load()
Dim fldName As String
fldName = Me.FieldModified.value
If (Not IsNull(fldName)) Then
Me.[fldName].ForeColor = vbRed '<--doesn't recognize fldName value
End If
End Sub
Updated code but it gives me an error 438 saying object doesn't support this property or method. But the form does highlight fields on the form but it highlights more then the one field "fldName"
Private Sub Form_Load()
Dim rstForm As String
Dim fldName As String
Set rstForm = Me.ChangedData.Form.Recordset
Do While Not rstForm.EOF
fldName = Me.FieldModified.value
If (Not IsNull(fldName)) Then
Me.Controls(fldName).ForeColor = vbRed '<--doesn't recognize fldName value
End If
rstForm.MoveNext
Loop
End Sub

Answer 1

You set the default format for the control. Every copy of the control in the continuous form uses this format. To format by a condition (fldName = Me.FieldModified.value) you need Condtional Formatting as Andre told you or use the detail-sections paint event (see update on bottom)
In conditional format wizard, you can create a condtion withExpression Isand[Converted].Name = [FieldModified]for each control of the form that should be highlighted, if its name matchesFiledModified. In Ms Access expressions you can't useMe, just omit it .
You can use VBA to format all controls with FormatConditions by code. If you want to modify an existing condition use.Modifyinstead of.Add
Private Sub Form_Load()
Dim ctl As Access.Control
For Each ctl In Me.Controls ' loop through all controls of form
On Error Resume Next ' Not all controls can have conditional format (e.g. labels). To save the check of control type, we ignore errors here
ctl.FormatConditions.Add(acExpression, , ctl.Name & ".Name=[FieldModified]").BackColor = vbRed 'add o format condition to control if possible, else an error is raised but ignored
If Err.Number Then 'show errors
Debug.Print "Error: " & Err.Number & " - " & Err.description & " in Control: " & ctl.Name & " Type is " & TypeName(ctl)
Err.Clear 'reset error to catch next
Else
Debug.Print "FormatCondition added to Control: " & ctl.Name & " Type is " & TypeName(ctl)
End If
Next ctl
On Error GoTo 0 ' turn on errors again, maybe add an error handler (On Error Goto MyErrHandler)
End Sub
Update:
You can use theDetails_Paintevent of the form to format same control different per record. This enables conditional format for controls withoutFormatConditionsproperty like labels, buttons.
Private Sub Detail_Paint()
Dim c As Access.Control
For Each c In Me.Detail.Controls
If c.Name = Me.FieldModified.Value Then
c.ForeColor = vbRed
Else
c.ForeColor = vbBlack
End If
Next
End Sub

Answer 2

You can't use a String variable like this, fldName is an identifier holding a String value.. not an identifier - in Me.ControlName, both Me and ControlName are identifiers.
But not all hope is lost! You can use a String to pull a Control object from a form!
All form controls should exist in the form's Controls collection, keyed by name:
Me.Controls(fldName).ForeColor = vbRed