Back and Forward.

[Tracey]

Hi, guys.
My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

Is there anyone has the same experience like that ?

Thanks

[Lucas Tam]

"Tracey" <jo********@hot mail.com> wrote in news:0a5001c383 b6$60bad790
$a*******@phx.g bl:

Hi, guys.
My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

Is there anyone has the same experience like that ?

I have a template form which has the forward/back button, and items that
are global for all pages. I have a User control for each "page" with the
appropriate layout. I swap the User control when the user presses
forward/backward.

As for storing options, I have a class object in the template form that
stores the pertinent options for each page. The object is passed into the
constructor of the user controls. The user control populates the selected
options if the user is viewing a previous page. I'm still working on this
part though.

If anyone has done this before, I would like to know how you did it as
well. Thanks!

--
Lucas Tam (RE********@rog ers.com)
Please delete "REMOVE" from the e-mail address when replying.
http://members.ebay.com/aboutme/coolspot18/

[Herfried K. Wagner [MVP]]

Hello,

"Tracey" <jo********@hot mail.com> schrieb:

My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

You can create multiple usercontrols, one for each page, and show only the
active page. Maybe you can provide more details on where to navigate
forward and backward.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
http://www.mvps.org/dotnet

[Nice Chap]

Navigation of forms can be very easily and effectively achieved creating a
Navigator Class that maintains the navigation path and also keeps track of
the current form. When the user clicks on forward or backward, you just call
the Navigator's Next/Previous methods.

"Lucas Tam" <RE********@rog ers.com> wrote in message
news:Xn******** *************** ****@140.99.99. 130...

"Tracey" <jo********@hot mail.com> wrote in news:0a5001c383 b6$60bad790
$a*******@phx.g bl:

Hi, guys.
My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

Is there anyone has the same experience like that ?

I have a template form which has the forward/back button, and items that
are global for all pages. I have a User control for each "page" with the
appropriate layout. I swap the User control when the user presses
forward/backward.

As for storing options, I have a class object in the template form that
stores the pertinent options for each page. The object is passed into the
constructor of the user controls. The user control populates the selected
options if the user is viewing a previous page. I'm still working on this
part though.

If anyone has done this before, I would like to know how you did it as
well. Thanks!

--
Lucas Tam (RE********@rog ers.com)
Please delete "REMOVE" from the e-mail address when replying.
http://members.ebay.com/aboutme/coolspot18/

[Nice Chap]

Navigation of forms can be very easily and effectively achieved creating a
Navigator Class that maintains the navigation path and also keeps track of
the current form. When the user clicks on forward or backward, you just call
the Navigator's Next/Previous methods.
"Lucas Tam" <RE********@rog ers.com> wrote in message
news:Xn******** *************** ****@140.99.99. 130...

"Tracey" <jo********@hot mail.com> wrote in news:0a5001c383 b6$60bad790
$a*******@phx.g bl:

Hi, guys.
My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

Is there anyone has the same experience like that ?

I have a template form which has the forward/back button, and items that
are global for all pages. I have a User control for each "page" with the
appropriate layout. I swap the User control when the user presses
forward/backward.

As for storing options, I have a class object in the template form that
stores the pertinent options for each page. The object is passed into the
constructor of the user controls. The user control populates the selected
options if the user is viewing a previous page. I'm still working on this
part though.

If anyone has done this before, I would like to know how you did it as
well. Thanks!

--
Lucas Tam (RE********@rog ers.com)
Please delete "REMOVE" from the e-mail address when replying.
http://members.ebay.com/aboutme/coolspot18/

[Herfried K. Wagner [MVP]]

Hello,

"Tracey" <jo********@hot mail.com> schrieb:

My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?

You can create multiple usercontrols, one for each page, and show only the
active page. Maybe you can provide more details on where to navigate
forward and backward.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
http://www.mvps.org/dotnet

[Ken Powers]

Tracey,

I have navigation(Firs t,Previous,Next ,Last) and command
buttons(Add,Upd ate,Delete,Clos e) on a MDI Parent that control the actions of
the MDI children.

First I use a "Generic" form

Public Class A
Inherits System.Windows. Forms.Form

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call

End Sub

'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Disp ose()
End If
End If
MyBase.Dispose( disposing)
End Sub

'Required by the Windows Form Designer
Private components As System.Componen tModel.IContain er

'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
components = New System.Componen tModel.Containe r
End Sub

Public Overridable WriteOnly Property Navigate()
Set(ByVal Value)
Select Case Value
Case "Print"
Case "First"
Case "Previous"
Case "Next"
Case "Last"
Case "Add"
Case "Update"
Case "Delete"
Case "Close"
Case "Save"
End Select
End Set
End Property

#End Region

End Class

Then I derive all my MDI children from the above class.

Public Class frmRate
Inherits A

THE FOLLOWING PROPERTY IS USED BY MDI PARENT TO SEND COMMAND FROM TOOLBAR TO
CHILDREN

Public Overrides WriteOnly Property Navigate()
Set(ByVal Value)
Select Case Value
Case "Print"
Case "First"
Me.BindingConte xt(dsDataSet, "Ratefil").Posi tion =
Me.BindingConte xt(dsDataSet).P osition.MinValu e
Case "Previous"
Me.BindingConte xt(dsDataSet, "Ratefil").Posi tion -= 1
Case "Next"
Me.BindingConte xt(dsDataSet, "Ratefil").Posi tion += 1
Case "Last"
Me.BindingConte xt(dsDataSet, "Ratefil").Posi tion =
Me.BindingConte xt(dsDataSet).P osition.MaxValu e
Case "Add"
btAdd_Click("", System.EventArg s.Empty)
Case "Update"
btUpdate_Click( "", System.EventArg s.Empty)
Case "Delete"
btDelete_Click( "", System.EventArg s.Empty)
Case "Close"
End Select
End Set
End Property

In my MDI Parent this Sub is used to send messages to the MDI Children.

Private Sub ToolBar1_Button Click(ByVal sender As System.Object, ByVal e
As System.Windows. Forms.ToolBarBu ttonClickEventA rgs) Handles
ToolBar1.Button Click
Try
Dim activeChild As Form = Me.ActiveMdiChi ld
If ActForm <> -1 Then
DirectCast(acti veChild, A).Navigate =
e.Button.Text.T oString
End If
Catch ex As Exception
MessageBox.Show (ex.Source.ToSt ring & " - " & ex.Message,
Application.Pro ductName, _
MessageBoxButto ns.OK, MessageBoxIcon. Error)
End Try
End Sub

Hope this help. If this works thank Herfried he helped me with
ToolBar1_Button Click and "Generic" form code.

Ken

[Tracey]

Thanks for your advice.
THe winforms in my application already have button
controls on each form, say "Back" and "Forward".

My winform have multiple links to other forms. And link
in other forms will also link to this form.

did I provide enough information ?

-----Original Message-----
Hello,

"Tracey" <jo********@hot mail.com> schrieb:

My application requires functionalities like back and
forward navigating button on winforms. And there are
many forms linking each other. Each form has a pair of
buttons of "Back" and "Forward "How can I implement the
back and forward procedure to make them work ?
You can create multiple usercontrols, one for each page,

and show only theactive page. Maybe you can provide more details on where to navigateforward and backward.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
http://www.mvps.org/dotnet
.

[Tracey]

Thanks, Ken.
But my application is not a MDI Form application.

I got something useful from your code.
Thanks again!

-----Original Message-----
Tracey,

I have navigation(Firs t,Previous,Next ,Last) and command
buttons(Add,Up date,Delete,Clo se) on a MDI Parent that control the actions ofthe MDI children.

First I use a "Generic" form

Public Class A
Inherits System.Windows. Forms.Form

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer. InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call
End Sub

'Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then
If Not (components Is Nothing) Then
components.Disp ose()
End If
End If
MyBase.Dispose( disposing)
End Sub

'Required by the Windows Form Designer
Private components As System.Componen tModel.IContain er
'NOTE: The following procedure is required by the Windows Form Designer 'It can be modified using the Windows Form Designer. 'Do not modify it using the code editor.
<System.Diagnos tics.DebuggerSt epThrough()> Private SubInitializeComp onent()
components = New System.Componen tModel.Containe r
End Sub

Public Overridable WriteOnly Property Navigate()
Set(ByVal Value)
Select Case Value
Case "Print"
Case "First"
Case "Previous"
Case "Next"
Case "Last"
Case "Add"
Case "Update"
Case "Delete"
Case "Close"
Case "Save"
End Select
End Set
End Property

#End Region

End Class

Then I derive all my MDI children from the above class.

Public Class frmRate
Inherits A

THE FOLLOWING PROPERTY IS USED BY MDI PARENT TO SEND COMMAND FROM TOOLBAR TOCHILDREN

Public Overrides WriteOnly Property Navigate()
Set(ByVal Value)
Select Case Value
Case "Print"
Case "First"
Me.BindingConte xt (dsDataSet, "Ratefil").Posi tion =Me.BindingCont ext(dsDataSet). Position.MinVal ue
Case "Previous"
Me.BindingConte xt (dsDataSet, "Ratefil").Posi tion -= 1 Case "Next"
Me.BindingConte xt (dsDataSet, "Ratefil").Posi tion += 1 Case "Last"
Me.BindingConte xt (dsDataSet, "Ratefil").Posi tion =Me.BindingCont ext(dsDataSet). Position.MaxVal ue
Case "Add"
btAdd_Click("", System.EventArg s.Empty) Case "Update"
btUpdate_Click( "", System.EventArg s.Empty) Case "Delete"
btDelete_Click( "", System.EventArg s.Empty) Case "Close"
End Select
End Set
End Property

In my MDI Parent this Sub is used to send messages to the MDI Children.
Private Sub ToolBar1_Button Click(ByVal sender As System.Object, ByVal eAs System.Windows. Forms.ToolBarBu ttonClickEventA rgs) HandlesToolBar1.Butto nClick
Try
Dim activeChild As Form = Me.ActiveMdiChi ld
If ActForm <> -1 Then
DirectCast(acti veChild, A).Navigate =
e.Button.Text. ToString
End If
Catch ex As Exception
MessageBox.Show (ex.Source.ToSt ring & " - " & ex.Message,Application.Pr oductName, _
MessageBoxButto ns.OK, MessageBoxIcon. Error) End Try
End Sub

Hope this help. If this works thank Herfried he helped me withToolBar1_Butto nClick and "Generic" form code.

Ken
.