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Help with Visual Basic code
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Mike
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RE: Help with Visual Basic code
This should work:

code:
Option Compare Text
Option Explicit
#Const DebugMode = 1 ' whether or not to show debug information

'@===========================================================================
' LoadFormState:
' Loads the state of controls from file
'
' Currently Supports: TextBox, CheckBox, OptionButton, Listbox, ComboBox
'============================================================================
Public Sub LoadFormState(ByVal SourceForm As Form)

Dim A        As Long     ' general purpose

    'Dim B As Long
Dim C        As Long
Dim TXT      As String   ' general purpose
Dim fData    As String   ' used to hold File Data
    ' these are variables used for controls data
Dim cType    As String   ' Type of control
Dim cName    As String   ' Name of control
Dim cNum     As Integer  ' number of control
    ' vars for the file
Dim FileName As String   ' where to save to
Dim FHandle  As Long     ' FileHandle
    ' error handling code
    'On Error GoTo fError
    ' we create a filename based on the formname
    FileName = App.Path & "\" & SourceForm.Name & ".set"
    ' abort if file does not exist
    If LenB(Dir(FileName)) = 0 Then
#If DebugMode = 1 Then
        Debug.Print "File Not found:" & FileName
#End If
        Exit Sub
    End If
    ' Get a filehandle
    FHandle = FreeFile()
    ' open the file
#If DebugMode = 1 Then
    Debug.Print "------------------------------------------------------>"
    Debug.Print "Loading FormState:" & SourceForm.Name
    Debug.Print "FileName:" & FileName
#End If
    Open FileName For Input As FHandle
    ' go through file
    Do While Not EOF(FHandle)
        Line Input #FHandle, cType
        Line Input #FHandle, cName
        ' Get control number
        cNum = -1
        For A = 0 To SourceForm.Controls.Count - 1
            If SourceForm.Controls(A).Name = cName Then
                cNum = A
            End If
        Next A
        ' add some debug info if in debugmode
#If DebugMode = 1 Then
        Debug.Print "Control Type=" & cType
        Debug.Print "Control Name=" & cName
        Debug.Print "Control Number=" & CStr(cNum)
#End If
        ' if we find control
        If Not cNum = -1 Then
            ' Depending on type of control, what data we get
            Select Case cType
            Case "TextBox"
                Line Input #FHandle, fData
                fData = ""
                TXT = ""
                Line Input #FHandle, fData
                fData = ""
                BackColor = ""
                SourceForm.Controls(cNum).BackColor = fData
               
                Do While Not fData = "EndText"
                    If Not LenB(TXT) = 0 Then
                        TXT = TXT + vbNewLine
                    End If
                    TXT = TXT + fData
                    Line Input #FHandle, fData
                Loop
                ' update control
                SourceForm.Controls(cNum).Text = TXT
            Case "CheckBox"
                ' we get the value
                Line Input #FHandle, fData
                ' update control
                SourceForm.Controls(cNum).Value = fData
            Case "OptionButton"
                ' we get the value
                Line Input #FHandle, fData
                ' update control
                SourceForm.Controls(cNum).Value = fData
            Case "ListBox"
                ' clear listbox
                SourceForm.Controls(cNum).Clear
                ' get .text property
                Line Input #FHandle, fData
                SourceForm.Controls(cNum).Text = fData
                ' read past /startlist
                Line Input #FHandle, fData
                fData = ""
                TXT = ""
                ' Get List
                Do While Not fData = "EndList"
                    If Not LenB(fData) = 0 Then
                        SourceForm.Controls(cNum).AddItem fData
                    End If
                    Line Input #FHandle, fData
                Loop
                ' get listindex
                Line Input #FHandle, fData
                SourceForm.Controls(cNum).ListIndex = Val(fData)
            Case "ComboBox"
                ' Clear combobox
                SourceForm.Controls(cNum).Clear
                ' Get Text
                Line Input #FHandle, fData
                SourceForm.Controls(cNum).Text = fData
                ' readpast /startlist
                Line Input #FHandle, fData
                fData = ""
                TXT = ""
                ' get list
                Do While Not fData = "EndList"
                    If Not LenB(fData) = 0 Then
                        SourceForm.Controls(cNum).AddItem fData
                    End If
                    Line Input #FHandle, fData
                Loop
            End Select ' what type of control
        End If ' if we found control
        ' read till seperator
        fData = ""
        Do While Not fData = "|<->|"
            Line Input #FHandle, fData
        Loop
    Loop ' not end of File (EOF)
    ' close file
#If DebugMode = 1 Then
    Debug.Print "Closing file.."
    Debug.Print "<------------------------------------------------------"
#End If
    Close #FHandle

Exit Sub


End Sub

'@===========================================================================
' SaveFormState:
' Saves the state of controls to a file
'
' Currently Supports: TextBox, CheckBox, OptionButton, Listbox, ComboBox
'=============================================================================
Public Sub SaveFormState(ByVal SourceForm As Form)

Dim A        As Long     ' general purpose
Dim B        As Long
Dim C        As Long
Dim FileName As String   ' where to save to
Dim FHandle  As Long     ' FileHandle

    ' error handling code
    On Error GoTo fError
    ' we create a filename based on the formname
    FileName = App.Path & "\" & SourceForm.Name & ".set"
    ' Get a filehandle
    FHandle = FreeFile()
    ' open the file
#If DebugMode = 1 Then
    Debug.Print "--------------------------------------------------------->"
    Debug.Print "Saving Form State:" & SourceForm.Name
    Debug.Print "FileName=" & FileName
#End If
    Open FileName For Output As FHandle
    ' loop through all controls
    ' first we save the type then the name
    For A = 0 To SourceForm.Controls.Count - 1
#If DebugMode = 1 Then
        Debug.Print "Saving control:" & SourceForm.Controls(A).Name
#End If
        ' if its textbox we save the .text property
        If TypeOf SourceForm.Controls(A) Is TextBox Then
            Print #FHandle, "TextBox"
            Print #FHandle, SourceForm.Controls(A).Name
            Print #FHandle, "StartText"
            Print #FHandle, SourceForm.Controls(A).Text
            Print #FHandle, "EndText"
            Print #FHandle, SourceForm.Controls(A).BackColor
            ' print a separator
            Print #FHandle, "|<->|"
        End If
        ' if its a checkbox we save the .value property
        If TypeOf SourceForm.Controls(A) Is CheckBox Then
            Print #FHandle, "CheckBox"
            Print #FHandle, SourceForm.Controls(A).Name
            Print #FHandle, Str$(SourceForm.Controls(A).Value)
            ' print a separator
            Print #FHandle, "|<->|"
        End If
        ' if its a option button we save its value
        If TypeOf SourceForm.Controls(A) Is OptionButton Then
            Print #FHandle, "OptionButton"
            Print #FHandle, SourceForm.Controls(A).Name
            Print #FHandle, Str$(SourceForm.Controls(A).Value)
            ' print a separator
            Print #FHandle, "|<->|"
        End If
        ' if its a listbox we save the .text and list contents
        If TypeOf SourceForm.Controls(A) Is ListBox Then
            Print #FHandle, "ListBox"
            Print #FHandle, SourceForm.Controls(A).Name
            Print #FHandle, SourceForm.Controls(A).Text
            Print #FHandle, "StartList"
            For B = 0 To SourceForm.Controls(A).ListCount - 1
                Print #FHandle, SourceForm.Controls(A).List(B)
            Next B
            Print #FHandle, "EndList"
            ' save listindex
            Print #FHandle, CStr(SourceForm.Controls(A).ListIndex)
            ' print a separator
            Print #FHandle, "|<->|"
        End If
        ' if its a combobox, save .text and list items
        If TypeOf SourceForm.Controls(A) Is ComboBox Then
            Print #FHandle, "ComboBox"
            Print #FHandle, SourceForm.Controls(A).Name
            Print #FHandle, SourceForm.Controls(A).Text
            Print #FHandle, "StartList"
            For B = 0 To SourceForm.Controls(A).ListCount - 1
                Print #FHandle, SourceForm.Controls(A).List(B)
            Next B
            Print #FHandle, "EndList"
            ' print a separator
            Print #FHandle, "|<->|"
        End If
    Next A
    ' close file
#If DebugMode = 1 Then
    Debug.Print "Closing File."
    Debug.Print "<----------------------------------------------------------"
#End If
    Close #FHandle
    ' stop error handler
    On Error GoTo 0

Exit Sub

fError:
    ' Simple error handler
    C = MsgBox("Error in SaveFormState. " & Err.Description & ", Number=" & CStr(Err.Number), vbAbortRetryIgnore)
    If C = vbIgnore Then
        Resume Next
    End If
    If C = vbRetry Then
        Resume
    End If
    ' else abort

End Sub

Haven't tested it though...
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Messages In This Thread
Help with Visual Basic code - by DJeX on 01-19-2005 at 11:06 PM
RE: Help with Visual Basic code - by Dempsey on 01-21-2005 at 11:32 PM
RE: Help with Visual Basic code - by DJeX on 01-23-2005 at 04:55 AM
RE: Help with Visual Basic code - by Mike on 01-23-2005 at 07:24 AM
RE: Help with Visual Basic code - by DJeX on 01-23-2005 at 08:50 PM
RE: Help with Visual Basic code - by Mike on 01-23-2005 at 08:54 PM
RE: Help with Visual Basic code - by DJeX on 01-23-2005 at 09:00 PM
RE: Help with Visual Basic code - by Mike on 01-23-2005 at 09:03 PM
RE: Help with Visual Basic code - by DJeX on 01-23-2005 at 10:58 PM
RE: Help with Visual Basic code - by Mike on 01-24-2005 at 11:52 AM
RE: Help with Visual Basic code - by DJeX on 01-24-2005 at 08:30 PM


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