[RESOLVED] combo box remember user input

hi to all please help me on this one, here is my problem i have a combo box without a list of item now i want to do is when a user input a number or text in combo box the text value of the combo box will be saved and when the user input the same number the combo box will not save the same text value. and when the user logout and login back again i want to load the list of item that he or she inputted earlier in the combo box. please help can this be possible?

Try the following, requires a button and a combobox. It will save the ComboBox items list to a text file and load it on startup. Validation for adding items to the ComboBox is the must be numeric and not in the current Items list.

Form code

Code:

---

Private MyComboBoxFile As String = _
    IO.Path.Combine(Application.StartupPath, "SavedItems.txt")

Private Sub Demo_FormClosing( _
    ByVal sender As Object, _
    ByVal e As System.Windows.Forms.FormClosingEventArgs) _
    Handles Me.FormClosing

    ComboBox1.Items.SaveToFile(MyComboBoxFile)

End Sub
Private Sub Demo_Load( _
    ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load

    If IO.File.Exists(MyComboBoxFile) Then
        ComboBox1.Items.LoadFromFile(MyComboBoxFile)
    End If

End Sub
Private Sub AddItem_Click( _
    ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    If Not String.IsNullOrEmpty(ComboBox1.Text) Then
        If Integer.TryParse(ComboBox1.Text, Nothing) Then
            Dim pos = ComboBox1.Items.IndexOf(ComboBox1.Text)
            If pos = -1 Then
                ComboBox1.Items.Add(ComboBox1.Text)
            End If
        End If
    End If
End Sub

---

Code module

Code:

---

<System.Diagnostics.DebuggerStepThrough()> _
<System.Runtime.CompilerServices.Extension()> _
Public Sub SaveToFile(ByVal sender As ComboBox.ObjectCollection, ByVal FileName As String)
    System.IO.File.WriteAllLines(FileName, (From Row In sender.Cast(Of String)() Select Row).ToArray())
End Sub
<System.Diagnostics.DebuggerStepThrough()> _
<System.Runtime.CompilerServices.Extension()> _
Public Sub LoadFromFile(ByVal sender As ComboBox.ObjectCollection, ByVal FileName As String)
    sender.AddRange(IO.File.ReadAllLines(FileName))
End Sub

---

hi kevininstructor thanks for the code i will try this

hi kevininstructor where i declare this

Code:

---

Private MyComboBoxFile As String = _
    IO.Path.Combine(Application.StartupPath, "SavedItems.txt")

---

hi thank you kevininstructor for this code it works like a charm man. :)

Quote:

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Originally Posted by acidsnake

hi thank you kevininstructor for this code it works like a charm man. :)

---

Good to hear the code worked for you!

Private Sub ButtonSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonSave.Click
If frUpdate = False Then
IsConnected("insert into table1 values(" & _
Me.TextID.Text & ",'" & _
Me.EN.Text & "','" & _
Me.FN.Text & "','" & _
Me.LN.Text & "','" & _
Me.MN.Text & "','" & _
Me.address.Text & "','" & _
Me.sss.Text & "','" & _
Me.tin.Text & "','" & _
Me.philhealth.Text & "','" & _
Me.BD.Value & "," & _
Me.datehired.Value & "," & _
Me.status.Text & "','" & _
Me.Gender.Text & "','" & _
Me.ts.Text & "','" & _
Me.tl.Text & "','" & _
Me.typel.Text & "','" & _
Me.lb.Text & "','" & _
Me.pt.Text & "','" & _
Me.rt.Text & "','" & _
Me.tmh.Text & "','" & _
Me.mld.Text & "','" & _
Me.tms.Text & "')", True)

MsgBox("Successfully saved!", MsgBoxStyle.Information, "Information")
Call LoadID()
Else


IsConnected("Update table1 set EmployeeNumber='" & Me.EN.Text & _
"',FirstName='" & Me.FN.Text & _
"',LastName='" & Me.LN.Text & _
"',MiddleName='" & Me.MN.Text & _
"',Address='" & Me.address.Text & _
"',SSS='" & Me.sss.Text & _
"',Tin='" & Me.tin.Text & _
"',PhilHealth='" & Me.philhealth.Text & _
"',DateOfBirth='" & Me.BD.Value & _
"',DateHired='" & Me.datehired.Value & _
"',Status='" & Me.status.Text & _
"',Gender='" & Me.Gender.Text & _
"',TotalSalary='" & Me.ts.Text & _
"',TotalLoan='" & Me.tl.Text & _
"',TypeofLoan='" & Me.typel.Text & _
"',LoanBalance='" & Me.lb.Text & _
"',PaymentTerm='" & Me.pt.Text & _
"',RemainingTerm='" & Me.rt.Text & _
"',TotalMonthHired='" & Me.tmh.Text & _
"',MonthlyLoanDeduction='" & Me.mld.Text & _
"',TotalMonthlySalary='" & Me.tms.Text & "' where ID='" & Me.TextID.Text & "'", True)

MsgBox("Successfully updated!", MsgBoxStyle.Information, "Information")

End If

End Sub

i'm receiving error:
number of query value and destination fields are not the same