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how to delete data on notepad

hello please help me on this. i have cmdadd_click()..when i click the button add,the data will display on the flexgrid at the sametime it write on the notepad..my problem is that i don't know how to make code on cmddelete_click().i want to delete the data i added on the notepad or one record of person.can you please help me on this hoping for your positive responds...this is sequential..here is my code..

Private Sub cmdadd_Click()
    If Trim(txtLname.Text) < "A" Then
        MsgBox "Invalid , in your last name"
        txtLname.SelStart = 0
        txtLname.SetFocus
        txtLname.SelLength = Len(txtLname.Text)
        Exit Sub
        End If
    
    If Trim(txtFname.Text) < "A" Then
        MsgBox "invalid, in the firstname"
        txtFname.SelStart = 0
        txtFname.SetFocus
        txtFname.SelLength = Len(txtFname.Text)
        Exit Sub
        End If
  
    If Trim(txtMname.Text) < "A" Then
        MsgBox "Invalid,middle name"
        txtMname.SelStart = 0
        txtMname.SetFocus
        txtMname.SelLength = Len(txtMname.Text)
        Exit Sub
      
    ElseIf Len(Trim(txtMname.Text)) <> 1 Then
      MsgBox "Middle inital only"
      txtMname.SelStart = 0
      txtMname.SetFocus
      txtMname.SelLength = Len(txtMname.Text)
      Exit Sub
      End If

      If Trim(txtMname.Text) = "" Then
             MsgBox "you have not inputed Middle name", vbInformation
             txtMname.SelStart = 0
             txtMname.SetFocus
             txtMname.SelLength = Len(txtMname.Text)
             Exit Sub
      
         End If
  
   
         If (txtaddres.Text) = "" Then
             MsgBox "you have not inputed Addres", vbInformation
             txtaddres.SelStart = 0
             txtaddres.SetFocus
             txtaddres.SelLength = Len(txtaddres.Text)
             Exit Sub
             End If
            
 If (Val(txtAge.Text)) <= 0 Then
     MsgBox "that is not an age", vbCritical
     txtAge.SelStart = 0
     txtAge.SetFocus
     txtAge.SelLength = Len(txtAge.Text)
     Exit Sub
     
  ElseIf (Val(txtAge.Text)) < 18 Or (Val(txtAge.Text)) > 90 Then
     MsgBox "Invalid input Your not qualified voter", vbCritical
     txtAge.SelStart = 0
     txtAge.SetFocus
     txtAge.SelLength = Len(txtAge.Text)
     Exit Sub
     End If
    
    pn = Trim(txtc.Text) + "-" + Trim(txtPn.Text)
    adress = Trim(Me.lbladdress.Caption)
    vidno = Trim(lblvidno.Caption)
    last = Trim(txtLname.Text)
    first = Trim(txtFname.Text)
    middle = Trim(Me.txtMname)
    address = Trim(Me.txtaddres)
    age = Val(txtAge.Text)

 grd.TextMatrix(grd.Rows - 1, 0) = vidno
 grd.TextMatrix(grd.Rows - 1, 1) = pn
 grd.TextMatrix(grd.Rows - 1, 2) = last
 grd.TextMatrix(grd.Rows - 1, 3) = first
 grd.TextMatrix(grd.Rows - 1, 4) = middle
 grd.TextMatrix(grd.Rows - 1, 5) = address
 grd.TextMatrix(grd.Rows - 1, 6) = age
 
 grd.Rows = grd.Rows + 1
 delete
 
 gFnum = FreeFile
 Open "D:\voters.dat" For Append As #gFnum
 Write #gFnum, pn, adress, vidno, last, first, middle, address, age
 Close #gFnum
 
 vlno = vlno + 1
 
 gFnum1 = FreeFile
 Open "D:\votersid.dat" For Output As #gFnum1
 Write #gFnum1, vlno
 Close #gFnum1
 
 lblvidno = lblvidno + 1
 lblvidno.Caption = Format(lblvidno, "0000")

  generator
  
End Sub

Private Sub cmdExit_Click()
'Form2.Show
End
End Sub


Private Sub Form_Load()

header
generator

gFnum1 = FreeFile
Open "D:\votersid.dat" For Input As #gFnum1
Input #gFnum1, vlno

 lblvidno = 1
 lblvidno.Caption = Format(vlno, "0000")


Close #gFnum1
    
     
End Sub
Public Sub generator()
 N = Int(Rnd(1) * 10)
 
If N = 1 Or N = 2 Then
    txtc.Text = "A"
    txtPn.Text = "342"
    lbladdress = "Singapore"
    Exit Sub
ElseIf N = 3 Or N = 4 Then
    txtc.Text = "B"
    txtPn.Text = "256"
    lbladdress = "China"
    Exit Sub
ElseIf N = 5 Or N = 6 Then
    txtc.Text = "C"
    txtPn.Text = "245"
    lbladdress = "United States"
    Exit Sub
ElseIf N = 7 Or N = 8 Then
    txtc.Text = "D"
    txtPn.Text = "314"
    lbladdress = "California"
    Exit Sub
Else
    txtc.Text = "E"
    txtPn.Text = "344"
    lbladdress = "Korea"
    Exit Sub

End If
End Sub
Public Sub voter()
   lblvidno = 1
   lblvidno.Caption = Format(lblvidno, "0000")


End Sub

Public Sub delete()

 Me.txtLname = ""
 Me.txtFname = ""
 Me.txtMname = ""
 Me.txtaddres = ""
 Me.txtAge = ""
End Sub
jemz
Master Poster
763 posts since Jan 2010
Reputation Points: 9
Solved Threads: 0
 

i think you have to open a new file simultaneously, start reading from first file and writing in second file ignoring the record you want to delete, then after closing both files you can delete first file & rename the second file.

i think this is the bad part of sequential storage system.

you can switch to database system like MS Jet(MS access)

vipin saxena
Newbie Poster
15 posts since May 2009
Reputation Points: 11
Solved Threads: 2
 

Hi

Public Sub delete() 

Me.txtLname.text = ""
Me.txtFname.text = ""
Me.txtMname.text = ""
Me.txtaddres.text = ""
Me.txtAge.text = ""
End Sub

Look I am not sure but yes you can try this code and whatever the result is just show it up here.

ankush.mukherje
Junior Poster
109 posts since Jan 2010
Reputation Points: 10
Solved Threads: 3
 

This article has been dead for over three months

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