How to update data of an excel sheet in a userform with vba
<p>U would like to know how i can retrieve data from an excel sheet and update it in a userform. </p>

<p>on the picture you can see what the userform looks like.
What i would like to do is make another userform that can search for a specific reference in the sheet and update some cells of that specific row.</p>

<p><a href="https://i.stack.imgur.com/uoOYx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uoOYx.png" alt="Userform"></a>
This is the code I have now to insert data into the sheet.  </p>

<pre><code>Private Sub cmdClear_Click()
' Clear the form
 For Each ctl In Me.Controls
 If TypeName(ctl) = "TextBox" Or TypeName(ctl) = "ComboBox" Then
 ctl.Value = ""
 ElseIf TypeName(ctl) = "CheckBox" Then
 ctl.Value = False
 End If
 Next ctl
End Sub

Private Sub cmdSend_Click()
    Dim RowCount As Long
    Dim ctl As Control
' Check user input

    If Me.combTechnieker.Value = "" Then
        MsgBox "Dag vreemdeling! Welke van de 4 Mongolen ben je?", vbExclamation, "RMA invoer"
        Me.combTechnieker.SetFocus
        Exit Sub
    End If

    If Me.txtPcwRef.Value = "" Then
        MsgBox "Vul onze referentie in!", vbExclamation, "RMA invoer"
        Me.txtPcwRef.SetFocus
        Exit Sub
    End If

    If Me.txtKlant.Value = "" Then
        MsgBox "Vul de naam van de klant in!", vbExclamation, "RMA invoer"
        Me.txtKlant.SetFocus
        Exit Sub
    End If

    If Me.txtMerk.Value = "" Then
        MsgBox "Vul het merk in!", vbExclamation, "RMA invoer"
        Me.txtMerk.SetFocus
        Exit Sub
    End If

    If Me.txtMerkRef.Value = "" Then
        MsgBox "Vul de referentie van de fabrikant in!", vbExclamation, "RMA invoer"
        Me.txtMerkRef.SetFocus
        Exit Sub
    End If

    If Me.txtProduct.Value = "" Then
        MsgBox "Vul het product in!", vbExclamation, "RMA invoer"
        Me.txtProduct.SetFocus
        Exit Sub
    End If

    If Me.txtSerienummer.Value = "" Then
        MsgBox "Vul het serienummer in!", vbExclamation, "RMA invoer"
        Me.txtSerienummer.SetFocus
        Exit Sub
    End If

    If Me.txtProbleem.Value = "" Then
        MsgBox "Vul de probleem omschrijving in!", vbExclamation, "RMA invoer"
        Me.txtProbleem.SetFocus
        Exit Sub
    End If

    If Me.txtOnderdelen.Value = "" Then
        MsgBox "Bent u zeker dat er geen onderdelen achterblijven. Indien ja. Vul N/A in", vbExclamation, "RMA invoer"
        Me.txtOnderdelen.SetFocus
        Exit Sub
    End If

' Write data to worksheet
    RowCount = Worksheets("RMA 2016").Range("A1").CurrentRegion.Rows.Count

    With Worksheets("RMA 2016").Range("A1")
        .Offset(RowCount, 0).Value = Format(Now, "dd/mm/yyyy hh:nn:ss")
        .Offset(RowCount, 1).Value = "Open"
        .Offset(RowCount, 3).Value = Me.txtPcwRef.Value
        .Offset(RowCount, 4).Value = Me.txtKlant.Value
        .Offset(RowCount, 5).Value = Me.txtMerk.Value
        .Offset(RowCount, 6).Value = Me.txtMerkRef.Value
        .Offset(RowCount, 7).Value = Me.txtProduct.Value
        .Offset(RowCount, 8).Value = Me.txtSerienummer.Value
        .Offset(RowCount, 9).Value = Me.txtOnderdelen.Value
        .Offset(RowCount, 10).Value = Me.txtProbleem.Value
        .Offset(RowCount, 13).Value = Me.combTechnieker.Value

    If Me.chkGarantie.Value = True Then
     .Offset(RowCount, 2).Value = "Ja"
     Else
    .Offset(RowCount, 2).Value = "Nee"
    End If
    End With
    ' Clear the form
     For Each ctl In Me.Controls
     If TypeName(ctl) = "TextBox" Or TypeName(ctl) = "ComboBox" Then
     ctl.Value = ""
    ElseIf TypeName(ctl) = "CheckBox" Then
    ctl.Value = False
    End If
    Next ctl
End Sub

Private Sub UserForm_Click()

End Sub
</code></pre>