FlexGrdEditing

'_____________________________________________________________________
Public Property Let EditBoxBorderStyle(varBorderStyle As AppearanceSettings)
    m_TbBorderStyle = varBorderStyle
    If Not Tb Is Nothing Then Tb.BorderStyle = m_TbBorderStyle
End Property

'_____________________________________________________________________
Public Property Let EnterKeyBehaviour(varKeyBehaviour As FlexEditKeyBehaviour)
    m_EnterKeyBehaviour = varKeyBehaviour
End Property

'_____________________________________________________________________
Public Property Let TabKeyBehaviour(varKeyBehaviour As FlexEditKeyBehaviour)
    ' need to restore tabstops to parent controls if varKeyBehaviour = 0
    If varKeyBehaviour = fgEditNone Then
        If m_TabKeyBehaviour <> fgEditNone Then RestoreTabStops
    End If
    m_TabKeyBehaviour = varKeyBehaviour
End Property

'_____________________________________________________________________
Private Sub Class_Initialize()
    ReDim prntCntls(0)
End Sub

'_____________________________________________________________________
Private Sub Class_Terminate()
    RemoveOldTextBox
End Sub

'++++++++++++++++++++++++++++++
'flex grid events
'_____________________________________________________________________
Private Sub fg_DblClick()
    fgInitEdit 32
End Sub

'_____________________________________________________________________
Private Sub fg_KeyPress(KeyAscii As Integer)
    fgInitEdit KeyAscii
End Sub

'_____________________________________________________________________
Private Sub fg_GotFocus()
    UpdateFg
End Sub

'_____________________________________________________________________
Private Sub fg_LeaveCell()
    If Not m_blnMoving Then UpdateFg
End Sub

'_____________________________________________________________________
Private Sub fg_Scroll()
    Dim dx As Long, dy As Long
    ' move tb with cell or hide if cell out of view
    If Tb.Visible Then
        With Fg
            If .RowIsVisible(.Row) And .ColIsVisible(.Col) Then
                dx = .Left + .Container.ScaleX(.CellLeft, vbTwips, .Container.ScaleMode)
                dy = .Top + .Container.ScaleY(.CellTop, vbTwips, .Container.ScaleMode)
                Tb.Move dx, dy
            Else
                Tb.Move -Tb.Width, -Tb.Height
            End If
        End With
    End If
End Sub

'+++++++++++++++++++++++
' Text box events
'_____________________________________________________________________
Private Sub tb_KeyPress(KeyAscii As Integer)
    '  get rid of beeps.
    Select Case KeyAscii
        Case 9, 13, 27
            KeyAscii = 0
    End Select
End Sub

'_____________________________________________________________________
Private Sub tb_KeyDown(KeyCode As Integer, Shift As Integer)
    Dim i As Long
    'read cellTop & cellLeft properties to force into view
    If (Tb.Left < 0) Or (Tb.Top < 0) Then
        i = Fg.CellTop
        i = Fg.CellLeft
    End If
    
    Select Case KeyCode
        Case 9  ' tab key
            MoveToCell m_TabKeyBehaviour
            
        Case 13   ' ENTER key
            MoveToCell m_EnterKeyBehaviour
        Case 27   ' ESC
            Tb.Visible = False
            Fg.SetFocus
            
        Case 38      ' Up.
            MoveToCell fgEditMoveup
        Case 40      ' Down.
            MoveToCell fgEditMoveDown
    End Select
End Sub

'_____________________________________________________________________
Private Sub Tb_LostFocus()
    RestoreTabStops
End Sub

'_____________________________________________________________________
' +++++++++++++++++++++++
' Utility functions
Private Sub fgInitEdit(KeyAscii As Integer)
    Dim sngL As Single, sngT As Single, sngW As Single, sngH As Single
    Select Case KeyAscii
            ' A space means edit the current text.
        Case 0 To 32
            Tb = Fg.Text
            Tb.SelStart = 0
            Tb.SelLength = Len(Tb.Text)
            ' Anything else means replace the current text.
        Case Else
            Tb = Chr(KeyAscii)
            Tb.SelStart = Len(Tb.Text)
    End Select
    
    With Fg.Container
        sngL = .ScaleX(Fg.CellLeft, vbTwips, .ScaleMode)
        sngT = .ScaleY(Fg.CellTop, vbTwips, .ScaleMode)
        sngW = .ScaleX(Fg.CellWidth, vbTwips, .ScaleMode)
        sngH = .ScaleY(Fg.CellHeight, vbTwips, .ScaleMode)
    End With
    ' Show textbox at the right place.
    
    Tb.Move Fg.Left + sngL, Fg.Top + sngT, sngW, sngH
    Tb.Visible = True
    Tb.SetFocus
    If m_TabKeyBehaviour <> fgEditNone Then
        RestoreTabStops
        RemoveTabStops
    End If
End Sub

'_____________________________________________________________________
Private Sub MoveToCell(varMoveBehaviour As FlexEditKeyBehaviour)
    m_blnMoving = True
    Select Case varMoveBehaviour
            
        Case fgEditNone
            Fg.SetFocus
            
        Case fgEditMoveDown
            Fg.Text = Tb.Text
            If Fg.Row + 1 < Fg.Rows Then
                Fg.Row = Fg.Row + 1
            ElseIf Fg.Col + 1 < Fg.Cols Then
                Fg.Col = Fg.Col + 1
                Fg.Row = Fg.FixedRows
            Else
                Fg.Col = Fg.FixedCols
                Fg.Row = Fg.FixedRows
            End If
            fgInitEdit 0
            
        Case fgEditMoveRight
            Fg.Text = Tb.Text
            If Fg.Col + 1 < Fg.Cols Then
                Fg.Col = Fg.Col + 1
            ElseIf Fg.Row + 1 < Fg.Rows Then
                Fg.Row = Fg.Row + 1
                Fg.Col = Fg.FixedCols
            Else
                Fg.Col = Fg.FixedCols
                Fg.Row = Fg.FixedRows
            End If
            fgInitEdit 0
        Case fgEditMoveup
            Fg.Text = Tb.Text
            If Fg.Row > Fg.FixedRows Then
                Fg.Row = Fg.Row - 1
            ElseIf Fg.Col > Fg.FixedCols Then
                Fg.Col = Fg.Col - 1
                Fg.Row = Fg.Rows - 1
            Else
                Fg.Col = Fg.Cols - 1
                Fg.Row = Fg.Rows - 1
            End If
            fgInitEdit 0
    End Select
    m_blnMoving = False
End Sub

'_____________________________________________________________________
Private Sub RemoveTabStops()
    Dim cntl As Control, i As Long
    On Error Resume Next
    With Fg.Parent
        ReDim prntCntls(.Controls.Count)
        For Each cntl In .Controls
            i = i + 1
            If TypeName(.Controls(cntl.Name)) = "Object" Then
                prntCntls(i).blnIsArray = True
                prntCntls(i).lngIndex = cntl.Index
            End If
            prntCntls(i).strName = cntl.Name
            prntCntls(i).blntabStop = cntl.TabStop
            cntl.TabStop = False
        Next
    End With
End Sub

'_____________________________________________________________________
Private Sub RestoreTabStops()
    Dim i As Long
    If Fg Is Nothing Then Exit Sub
    On Error Resume Next
    With Fg.Parent
        For i = 1 To UBound(prntCntls)
            If prntCntls(i).blnIsArray Then
                .Controls(prntCntls(i).strName)(prntCntls(i).lngIndex).TabStop = prntCntls(i).blntabStop
            Else
                .Controls(prntCntls(i).strName).TabStop = prntCntls(i).blntabStop
            End If
        Next
    End With
    ReDim prntCntls(0)
End Sub

'_____________________________________________________________________
Private Sub RemoveOldTextBox()
    On Error Resume Next
    If Not Fg Is Nothing Then
        Set Tb = Nothing
        Fg.Parent.Controls.Remove strTbName
        Set Fg = Nothing
    End If
End Sub

'_____________________________________________________________________
Private Sub UpdateFg()
    If Tb.Visible = False Then Exit Sub
    Fg.Text = Tb.Text
    Tb.Visible = False
End Sub

FlexGrid Editing
The code On this page Is For a class module that you can 
Add To your project To enable editing of a flexgrid cells 
at runtime. 
Please note: this class module can only be used With VB6 
(Or later ?) As it adds a textbox , other than that the 
principles would be similar For VB5.

How To use:
Copy the code from below, And Put it In a class module 
And Name the module appropriately (eg clsFlexGridEdit). 
Then In your form you Add a reference To the class, eg:

Public clsFGEdit As clsFlexGridEdit

Then To enable editing you would invoke this code:
Set clsFGEdit = New clsFlexGridEdit
Set clsFGEdit.FlexGridControl = MSFlexGrid1

How it works:
When you Set the FlexGridControl Property of the class, 
the class Then also receives your flexgrid events. 
A textbox Is added To your flexgrid's container and it's 
events are handled within the class module.
The textbox Is moved With the flexgrid's cells while 
editing and moved back into view when the user presses 
any key. Note: the FlexGrid control has a strange 
"feature" that if you read the CellLeft or CellTop 
properties it forces that cell into view. 
This "feature" is used to move the textbox back into view
after the flexgrid was scrolled, but also means that to 
determine if a cell is in view we have to calculate the 
column widths and row widths rather than read from the 
CellLeft or CellTop properties.
This class also lets you Set the Enter key And Tab key 
behaviour While editing. The Tab key behaviour Is invoked 
by setting the TabStop Property of all controls On the 
form To False, Then restoring their TabStop Property once 
editing Is complete. If you have many controls On the 
form, it might be better To subclass the textbox.

Put this code In a class module

Option Explicit
Public Enum FlexEditKeyBehaviour
fgEditNone = 0
fgEditMoveRight = 1
fgEditMoveDown = 2
fgEditMoveup = 3
End Enum
Private Type cntlInfo
blnIsArray As Boolean
lngIndex As Long
strName As String
blntabStop As Boolean
End Type
Private WithEvents Fg As MSFlexGrid
Private WithEvents Tb As TextBox
Private strTbName As String
Private prntCntls() As cntlInfo
Private m_TbBorderStyle As AppearanceSettings
Private m_EnterKeyBehaviour As FlexEditKeyBehaviour
Private m_TabKeyBehaviour As FlexEditKeyBehaviour
Private m_blnMoving As Boolean
'_____________________________________________________________________

Public Property Set FlexGridControl(fgControl As MSFlexGrid)
RemoveOldTextBox
Set Fg = fgControl
On Error Resume Next
strTbName = "tbFgEdit"
Do
Err = 0
strTbName = strTbName & "1"
Fg.Parent.Controls.Add "VB.TextBox", strTbName, Fg.Container
Loop While Err <> 0
Set Tb = Fg.Parent.Controls(strTbName)
With Tb
.Visible = False
.BorderStyle = m_TbBorderStyle
Set .Font = Fg.Font
.TabStop = False
.ZOrder
End With
End Property

'_____________________________________________________________________

Public Property Let EditBoxBorderStyle(varBorderStyle As AppearanceSettings)
m_TbBorderStyle = varBorderStyle
If Not Tb Is Nothing Then Tb.BorderStyle = m_TbBorderStyle
End Property

'_____________________________________________________________________

Public Property Let EnterKeyBehaviour(varKeyBehaviour As FlexEditKeyBehaviour)
m_EnterKeyBehaviour = varKeyBehaviour
End Property

'_____________________________________________________________________

Public Property Let TabKeyBehaviour(varKeyBehaviour As FlexEditKeyBehaviour)
' need to restore tabstops to parent controls if varKeyBehaviour = 0

If varKeyBehaviour = fgEditNone Then
If m_TabKeyBehaviour <> fgEditNone Then RestoreTabStops
End If
m_TabKeyBehaviour = varKeyBehaviour
End Property

'_____________________________________________________________________

Private Sub Class_Initialize()
ReDim prntCntls(0)
End Sub

'_____________________________________________________________________

Private Sub Class_Terminate()
RemoveOldTextBox
End Sub

'++++++++++++++++++++++++++++++

'flex grid events

'_____________________________________________________________________

Private Sub fg_DblClick()
fgInitEdit 32
End Sub

'_____________________________________________________________________

Private Sub fg_KeyPress(KeyAscii As Integer)
fgInitEdit KeyAscii
End Sub

'_____________________________________________________________________

Private Sub fg_GotFocus()
UpdateFg
End Sub

'_____________________________________________________________________

Private Sub fg_LeaveCell()
If Not m_blnMoving Then UpdateFg
End Sub

'_____________________________________________________________________

Private Sub fg_Scroll()
Dim dx As Long, dy As Long
' move tb with cell or hide if cell out of view

If Tb.Visible Then
With Fg
If .RowIsVisible(.Row) And .ColIsVisible(.Col) Then
dx = .Left + .Container.ScaleX(.CellLeft, vbTwips, .Container.ScaleMode)
dy = .Top + .Container.ScaleY(.CellTop, vbTwips, .Container.ScaleMode)
Tb.Move dx, dy
Else
Tb.Move -Tb.Width, -Tb.Height
End If
End With
End If
End Sub

'+++++++++++++++++++++++

' Text box events

'_____________________________________________________________________

Private Sub tb_KeyPress(KeyAscii As Integer)
' get rid of beeps.

Select Case KeyAscii
Case 9, 13, 27
KeyAscii = 0
End Select
End Sub

'_____________________________________________________________________

Private Sub tb_KeyDown(KeyCode As Integer, Shift As Integer)
Dim i As Long
'read cellTop & cellLeft properties to force into view

If (Tb.Left < 0) Or (Tb.Top < 0) Then
i = Fg.CellTop
i = Fg.CellLeft
End If

Select Case KeyCode
Case 9 ' tab key
MoveToCell m_TabKeyBehaviour

Case 13 ' ENTER key
MoveToCell m_EnterKeyBehaviour
Case 27 ' ESC
Tb.Visible = False
Fg.SetFocus

Case 38 ' Up.
MoveToCell fgEditMoveup
Case 40 ' Down.
MoveToCell fgEditMoveDown
End Select
End Sub

'_____________________________________________________________________

Private Sub Tb_LostFocus()
RestoreTabStops
End Sub

'_____________________________________________________________________

' +++++++++++++++++++++++

' Utility functions

Private Sub fgInitEdit(KeyAscii As Integer)
Dim sngL As Single, sngT As Single, sngW As Single, sngH As Single
Select Case KeyAscii
' A space means edit the current text.

Case 0 To 32
Tb = Fg.Text
Tb.SelStart = 0
Tb.SelLength = Len(Tb.Text)
' Anything else means replace the current text.

Case Else
Tb = Chr(KeyAscii)
Tb.SelStart = Len(Tb.Text)
End Select

With Fg.Container
sngL = .ScaleX(Fg.CellLeft, vbTwips, .ScaleMode)
sngT = .ScaleY(Fg.CellTop, vbTwips, .ScaleMode)
sngW = .ScaleX(Fg.CellWidth, vbTwips, .ScaleMode)
sngH = .ScaleY(Fg.CellHeight, vbTwips, .ScaleMode)
End With
' Show textbox at the right place.

Tb.Move Fg.Left + sngL, Fg.Top + sngT, sngW, sngH
Tb.Visible = True
Tb.SetFocus
If m_TabKeyBehaviour <> fgEditNone Then
RestoreTabStops
RemoveTabStops
End If
End Sub

'_____________________________________________________________________

Private Sub MoveToCell(varMoveBehaviour As FlexEditKeyBehaviour)
m_blnMoving = True
Select Case varMoveBehaviour

Case fgEditNone
Fg.SetFocus

Case fgEditMoveDown
Fg.Text = Tb.Text
If Fg.Row + 1 < Fg.Rows Then
Fg.Row = Fg.Row + 1
ElseIf Fg.Col + 1 < Fg.Cols Then
Fg.Col = Fg.Col + 1
Fg.Row = Fg.FixedRows
Else
Fg.Col = Fg.FixedCols
Fg.Row = Fg.FixedRows
End If
fgInitEdit 0

Case fgEditMoveRight
Fg.Text = Tb.Text
If Fg.Col + 1 < Fg.Cols Then
Fg.Col = Fg.Col + 1
ElseIf Fg.Row + 1 < Fg.Rows Then
Fg.Row = Fg.Row + 1
Fg.Col = Fg.FixedCols
Else
Fg.Col = Fg.FixedCols
Fg.Row = Fg.FixedRows
End If
fgInitEdit 0
Case fgEditMoveup
Fg.Text = Tb.Text
If Fg.Row > Fg.FixedRows Then
Fg.Row = Fg.Row - 1
ElseIf Fg.Col > Fg.FixedCols Then
Fg.Col = Fg.Col - 1
Fg.Row = Fg.Rows - 1
Else
Fg.Col = Fg.Cols - 1
Fg.Row = Fg.Rows - 1
End If
fgInitEdit 0
End Select
m_blnMoving = False
End Sub

'_____________________________________________________________________

Private Sub RemoveTabStops()
Dim cntl As Control, i As Long
On Error Resume Next
With Fg.Parent
ReDim prntCntls(.Controls.Count)
For Each cntl In .Controls
i = i + 1
If TypeName(.Controls(cntl.Name)) = "Object" Then
prntCntls(i).blnIsArray = True
prntCntls(i).lngIndex = cntl.Index
End If
prntCntls(i).strName = cntl.Name
prntCntls(i).blntabStop = cntl.TabStop
cntl.TabStop = False
Next
End With
End Sub

'_____________________________________________________________________

Private Sub RestoreTabStops()
Dim i As Long
If Fg Is Nothing Then Exit Sub
On Error Resume Next
With Fg.Parent
For i = 1 To UBound(prntCntls)
If prntCntls(i).blnIsArray Then
.Controls(prntCntls(i).strName)(prntCntls(i).lngIndex).TabStop = prntCntls(i).blntabStop
Else
.Controls(prntCntls(i).strName).TabStop = prntCntls(i).blntabStop
End If
Next
End With
ReDim prntCntls(0)
End Sub

'_____________________________________________________________________

Private Sub RemoveOldTextBox()
On Error Resume Next
If Not Fg Is Nothing Then
Set Tb = Nothing
Fg.Parent.Controls.Remove strTbName
Set Fg = Nothing
End If
End Sub

'_____________________________________________________________________

Private Sub UpdateFg()
If Tb.Visible = False Then Exit Sub
Fg.Text = Tb.Text
Tb.Visible = False
End Sub

FlexGrid Editing
The code On this page Is For a class module that you can
Add To your project To enable editing of a flexgrid cells
at runtime.
Please note: this class module can only be used With VB6
(Or later ?) As it adds a textbox , other than that the
principles would be similar For VB5.

How To use:
Copy the code from below, And Put it In a class module
And Name the module appropriately (eg clsFlexGridEdit).
Then In your form you Add a reference To the class, eg:

Public clsFGEdit As clsFlexGridEdit

Then To enable editing you would invoke this code:
Set clsFGEdit = New clsFlexGridEdit
Set clsFGEdit.FlexGridControl = MSFlexGrid1

How it works:
When you Set the FlexGridControl Property of the class,
the class Then also receives your flexgrid events.
A textbox Is added To your flexgrid's container and it's
events are handled within the class module.
The textbox Is moved With the flexgrid's cells while
editing and moved back into view when the user presses
any key. Note: the FlexGrid control has a strange
"feature" that if you read the CellLeft or CellTop
properties it forces that cell into view.
This "feature" is used to move the textbox back into view
after the flexgrid was scrolled, but also means that to
determine if a cell is in view we have to calculate the
column widths and row widths rather than read from the
CellLeft or CellTop properties.
This class also lets you Set the Enter key And Tab key
behaviour While editing. The Tab key behaviour Is invoked
by setting the TabStop Property of all controls On the
form To False, Then restoring their TabStop Property once
editing Is complete. If you have many controls On the
form, it might be better To subclass the textbox.

Put this code In a class module