Instance of an form

[krishna]

Hi,
I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Regards,
Krishna.

[Cor Ligthert]

Krishna,

With MDI forms I use this one from what I have made a sample in this
message.

http://groups-beta.google.com/group/...bfdc42fec49419

Maybe it helps you to, the disadvantage is that there is only one type of
midi form active, however that is exactly as I want.

I hope this helps?

Cor

[Ken Tucker [MVP]]

Hi,

When you closed the form the form variable was disposed. Try
something like this.

if MyFormVariable is nothing then
MyFormVairable = new MDIChildForm
End If

' Show your form here and add to the mdiparent form

Ken
--------------------
"krishna" <ve*************@gmail.com> wrote in message
news:0d****************************@phx.gbl...
Hi,
I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Regards,
Krishna.

[Carlos J. Quintero [.NET MVP]]

Once the form is closed, it is disposed and you need to create a new
instance.

--

Carlos J. Quintero

MZ-Tools 4.0: Productivity add-ins for Visual Studio .NET
You can code, design and document much faster.
http://www.mztools.com
"krishna" <ve*************@gmail.com> escribió en el mensaje
news:0d****************************@phx.gbl...

Hi,
I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Regards,
Krishna.

[Herfried K. Wagner [MVP]]

"krishna" <ve*************@gmail.com> schrieb:

I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Add this to your menu item's 'Click' event handler:

\\\
Dim f As New Form1()
f.Show()
///

This will create a new instance of your for every time the item is clicked.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Supra]

i understand ur proiblem. try my example :
use keypwrd NOTHING and IsDisposed

in ur menu
\\
\\
Case "Server's status"
If netBots.nStatus Is Nothing OrElse
netBots.nStatus.IsDisposed Then
netBots.nStatus = New frmStatus
End If
netBots.nStatus.MdiParent = Me
netBots.nStatus.Show()

u can close it and open again
regards

krishna wrote:

Hi,
I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Regards,
Krishna.

[Supra]

i understand ur proiblem. try my example :
use keypwrd NOTHING and IsDisposed

in ur menu
\\
\\
Case "Server's status"
If netBots.nStatus Is Nothing OrElse
netBots.nStatus.IsDisposed Then
netBots.nStatus = New frmStatus
End If
netBots.nStatus.MdiParent = Me
netBots.nStatus.Show()

u can close it and open again
regards

krishna wrote:

Hi,
I have doubt,I have a MDI form with few menus
whenever i click on particular menu item it should
open.it is opening nice.I have closed that form.I am still
in the MDI i have tried to open the same form.It is giving
error message disposed object can not exist.I have
declared the form instances in the module.

Regards,
Krishna.