simple code for making a control disabled or enabled

by Sreeram.P (16 Submissions)
Category: Custom Controls/Forms/Menus
Compatability: Visual Basic 5.0
Difficulty: Unknown Difficulty
Originally Published: Fri 9^th June 2006
Date Added: Mon 8^th February 2021
Rating: (1 Votes)

API Declarations
'chk(0) after place combo1 'chk(1) after place List1 'chk(2) after place command1 'chk(3) after place text1 'chk(4) after place Frame1

Rate simple code for making a control disabled or enabled



'declerations
Public Const conTHIRTEEN As Byte = 13
Public Const conSEVEN As Byte = 7
Public Const conEIGHT As Byte = 8
Public Const conTWELVE As Byte = 12
Public Const conTEN As Byte = 10
Public Const coNFIVE As Byte = 5
Public Const conNINE As Byte = 9

Public Const conCommandButton As String * conTHIRTEEN = "CommandButton"
Public Const conListBox As String * conSEVEN = "ListBox"
Public Const conTextBox As String * conSEVEN = "TextBox"
Public Const conComboBox As String * conEIGHT = "ComboBox"
Public Const conCheckBox As String * conEIGHT = "CheckBox"
Public Const conOptionButton As String * conTWELVE = "OptionButton"
Public Const conMsFlexGrid  As String * conTEN = "MSFlexGrid"
Public Const conFrame  As String * coNFIVE = "Frame"
Public Const conMaskEdBox  As String * conNINE = "MaskEdBox"
Public Const conStatusBar As String * conNINE = "StatusBar"
Public Const conVASpread As String = "VASPREAD"
Public Const conNumericControl As String = "ctlNumber"
Public Const conDateControl As String = "ctlDate"

Public Function CtrlEnable(ByVal CtlEnable As Boolean, ByRef Ctl As Object) As Boolean
'***************************************************************************************
'# Function Name       :   gsEnable
'# Purpose             :   Enables/Disables the passed control
'# Scope               :   Public
'# Parameters          :    True/False
'#                          The Control to be Enabled
'# Returns             :   None
'#  SL NO     Date          Author          Reason
'#  -------------------------------------------------------------------------------------
'#  1.      05Sep2006      Sreeram.P      Project Requirement
'****************************************************************************************
Dim lsErrorString As String
On Error GoTo ErrorHandler
    If CtlEnable Then    '# Changing color to vbWindowBackground
        Select Case TypeName(Ctl)
            Case conTextBox, conListBox, conComboBox, conNumericControl
                Ctl.Locked = Not CtlEnable
                Ctl.BackColor = vbWindowBackground
            Case conCommandButton, conDateControl, conFrame
                Ctl.Enabled = CtlEnable
            Case conVASpread
                Ctl.Enabled = CtlEnable
                Ctl.Row = -1
                Ctl.Col = -1
                Ctl.BackColor = vbWindowBackground
            Case conMaskEdBox
                Ctl.Enabled = CtlEnable
                Ctl.BackColor = vbWindowBackground
                Ctl.ForeColor = vbButtonText
            Case Else
                Ctl.Enabled = CtlEnable
        End Select
    Else    '# Changing color to vbInactiveBorder
        Select Case TypeName(Ctl)
            Case conTextBox, conListBox, conComboBox, conNumericControl
                Ctl.Locked = Not CtlEnable
                Ctl.BackColor = vbInactiveBorder
            Case conCommandButton, conDateControl, conFrame
                Ctl.Enabled = CtlEnable
            Case conVASpread
                Ctl.Enabled = CtlEnable
                Ctl.Row = -1
                Ctl.Col = -1
                Ctl.BackColor = vbInactiveBorder
             Case conMaskEdBox
                Ctl.Enabled = CtlEnable
                Ctl.BackColor = vbInactiveBorder
                Ctl.ForeColor = vbButtonText
            Case Else
                Ctl.Enabled = CtlEnable
        End Select
    End If
    CtrlEnable = True
CleanUp:
    Exit Function
ErrorHandler:
    'frfErrorHandler lsErrorString
    GoTo CleanUp
End Function

'add a form and paste this code
Private Sub chk_Click(Index As Integer)
    If Index = 0 Then
        If chk(Index).Value = 1 Then
            'combo enable code
            Module1.CtrlEnable True, Combo1
        Else
            'code for combo disable
            Module1.CtrlEnable False, Combo1
        End If
    ElseIf Index = 1 Then
        If chk(Index).Value = 1 Then
            'list enable code
            Module1.CtrlEnable True, List1
        Else
            'code for combo disable
            Module1.CtrlEnable False, List1
        End If
    ElseIf Index = 2 Then
        If chk(Index).Value = 1 Then
            'command enable code
            Module1.CtrlEnable True, Command1
        Else
            'code for combo disable
            Module1.CtrlEnable False, Command1
        End If
    ElseIf Index = 3 Then
        If chk(Index).Value = 1 Then
            'text enable code
            Module1.CtrlEnable True, Text1
        Else
            'code for combo disable
            Module1.CtrlEnable False, Text1
        End If
    ElseIf Index = 4 Then
        If chk(Index).Value = 1 Then
            'frame enable code
            Module1.CtrlEnable True, Frame1
        Else
            'code for combo disable
            Module1.CtrlEnable False, Frame1
        End If
    End If
    
End Sub

Private Sub Form_Load()
    'code for combo disable
    Module1.CtrlEnable False, Combo1
    'code for combo disable
    Module1.CtrlEnable False, List1
    'code for combo disable
    Module1.CtrlEnable False, Command1
    'code for combo disable
    Module1.CtrlEnable False, Text1
    'code for combo disable
    Module1.CtrlEnable False, Frame1
End Sub

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