Passing panel id to a subroutine

[James]

I am trying to passing a panel id to to a sub routine with a onclick on a button with VB.Net

 

I have several panels that I want to make visible or invisible, I want to create one sub to the same routine.

 

ex.

 

 

sub runIt(a as object, e as eventargs, pnlName as string)

if a.text="+" then

pnlName.visible=true

' pnlTravel.visible=true This works fine

a.text="-"

else

pnlName.visible=false

' pnlTravel.visible=false this works fine

a.text="+"

end if

End sub

 

 

<asp:Button id="btnAdd2" onclick="runIt('pnlTravel')" runat="server" Font-Size="XX-Small" BorderStyle="Solid" Text="+" BackColor="White" BorderColor="DarkGray" />

<asp:Panel id="pnlTravel" runat="server">My code goes here</asp:Panel>

 

Please help I'm new to .NET

 

James

[divil]

Pass the panel itself, not the name of it. Declare the parameter as type Panel, and you should be all set.

[James]

I've declare the parameter as a panel. But how do I pass the panel itself? can you show me an example?

sub runIt(a as object, e as eventargs, pnlName as panel)

if a.text="+" then

pnlName.visible=true

a.text="-"

else

pnlName.visible=false

a.text="+"

end if

End sub

 

<asp:Button id="btnAdd2" onclick="runIt(pnlTravel)" runat="server" Font-Size="XX-Small" BorderStyle="Solid" Text="+" BackColor="White" BorderColor="DarkGray" />

<asp:Panel id="pnlTravel" runat="server">My code goes here</asp:Panel>

 

Thanks,

 

James

[divil]

I don't have much experience in ASP.NET but that looks like it should work - can you elaborate on what error you get and where?

[James]

When I pass the panel name to the subroutine The subroutine is expecting values for "a as object, e as eventargs". If I take them out of the subroutine. I get a message telling me I need them. Is there a way I can pass the object and eventargs with the panel name?

 

James

[Robby]

If you place your routine in the code-behind, there's no reason why it doesn't work.

public sub runIt(a as object, e as eventargs, pnlName as panel)
   pnlName.visible=true
end sub

[Robby]

what is 'a as object' supposed to be?

[Derek Stone]

I don't believe onClick (and all events for that matter) excepts anything other than the sub's name, nor do you need it to, since you already know what panel you're going to hide.