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VB.NET Discussion Thread
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Sep 6th, 2009

how to reset the form

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hie
if the user, after working with the form wishes to reset it, how can it be done.
will me.refresh() help.
wht is it used for?

babbu

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Posting Whiz in Training

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Sep 6th, 2009

Re: how to reset the form

no. me.refresh will just update
its actually depends on what exactlly you wish to reset like textboxes, checkboxes and so on.
you could do an function like:

vb Syntax (Toggle Plain Text)
private sub ClearCtrl
for each ctrl as control in Form1
try
if typeof(ctrl) is checkbox then ctrl.checked=false
if typeof(ctrl) is textbox then ctrl.clear
catch as exception
'catch the containers here
end try
next
private sub ClearCtrl
for each ctrl as control in Form1
try
if typeof(ctrl) is checkbox then ctrl.checked=false
if typeof(ctrl) is textbox then ctrl.clear
catch as exception
'catch the containers here
end try
next

end sub

something like that

Last edited by GeekByChoiCe; Sep 6th, 2009 at 2:27 am.

GeekByChoiCe

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Sep 6th, 2009

Re: how to reset the form

I don't get a word "reset". Do you want to reset the state of controls or just clear the text or setting up selectedindex with 0?

vb.net Syntax (Toggle Plain Text)
For Each c As Control In Me.Controls
  If TypeOf c Is TextBox Then
     CType(c, TextBox).Text = String.Empty
  End If
Next
For Each c As Control In Me.Controls
  If TypeOf c Is TextBox Then
     CType(c, TextBox).Text = String.Empty
  End If
Next

adatapost

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Sep 6th, 2009

-1

Re: how to reset the form

oi sry i just saw i missed something
it should be "for each ctrl as control in Form1.controls"

GeekByChoiCe

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Sep 6th, 2009

Re: how to reset the form

cant edit my post anymore. but since adatapost told me its not working i did a test and its working

vb Syntax (Toggle Plain Text)
  For Each ctrl As Control In Me.Controls
            Try
                If TypeOf (ctrl) Is CheckBox Then DirectCast(ctrl, CheckBox).Checked = False
                If TypeOf (ctrl) Is TextBox Then DirectCast(ctrl, TextBox).Clear()
            Catch ex As Exception
                'catch the containers here
            End Try
        Next
  For Each ctrl As Control In Me.Controls
            Try
                If TypeOf (ctrl) Is CheckBox Then DirectCast(ctrl, CheckBox).Checked = False
                If TypeOf (ctrl) Is TextBox Then DirectCast(ctrl, TextBox).Clear()
            Catch ex As Exception
                'catch the containers here
            End Try
        Next

works as it is and only if you dont have the controls inside containers such as panels, groupboxes then you need to recurse these aswell.

GeekByChoiCe

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Sep 6th, 2009

Re: how to reset the form

@GeekByChoice : it should be "for each ctrl as control in Form1.controls".
-- It must be Me.Controls.

adatapost

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Sep 6th, 2009

Re: how to reset the form

yeye take it easy man. i was sure the user can figure that out by himself. but anyway u r right

GeekByChoiCe

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Sep 6th, 2009

Re: how to reset the form

isn't there a centralised option for resetting the from...

like am using a user specified array of custom controls on a flow panel connecting to a database.

Now how do i reset the data to it's initial state if the user presses a button called reset

Arunabh Nag

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Sep 6th, 2009

Re: how to reset the form

Dispose the form and re-instantiate it to the state defined by the contructor(s). However I am almost certain this is not what you want so please clarify what you are doing, and what you would like to do.

sknake

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