Hi all,
I was just playing around with some code to hide/show panels and I
discovered that I am losing a variable's value when my sub is called from a
button in paneltwo. Why is this?
Cheers and Thanks, Lerp
Code below:
<script language="vb" runat="server">
Dim myvalue as Long
SUB Page_Load(Sender As Object, E As EventArgs)
panelone.visible = true
paneltwo.visible = false
END SUB
Sub One(Sender As Object, E As EventArgs)
myvalue = 7
panelone.visible = false
paneltwo.visible = true
response.write(myvalue & " IS MY VALUE" & "<BR>")
End Sub
Sub Two(Sender As Object, E As EventArgs)
Dim curVal = myvalue
panelone.visible = true
paneltwo.visible = false
response.write(curVal & " IS CurVal VALUE" & "<BR>")
******************************** This turns out to be ZERO
End Sub
</script>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<head></head>
<body>
<form runat="server">
<asp:panel ID="panelone" runat="server">
<table width="600" cellpadding="2" cellspacing="0" border="0">
<tr valign="top">
<td align="left" class="bodycopy">
<asp:Button id="submitform1" text="Panel One Button" OnClick="One"
runat="server" CssClass="but" />
</td>
</tr>
</table>
</asp:panel>
<asp:panel ID="paneltwo" runat="server">
<table width="600" cellpadding="2" cellspacing="0" border="0">
<tr valign="top">
<td align="left" class="bodycopy">
<asp:Button id="submitform2" text="Panel Two Button" OnClick="Two"
runat="server" CssClass="but" />
</td>
</tr>
</table>
</asp:panel>
</form>
</body>
</html>HTTP is stateless. This means that every time a Page Posts back, everything
is re-initialized. If you change the value of a private member of your class
in one instance, you have to persist it somehow between PostBacks.
ViewState, Session, etc.
HTH,
Kevin Spencer
.Net Developer
Microsoft MVP
Big things are made up
of lots of little things.
"Lerp" <admin@.officience.ca> wrote in message
news:OqL6aLPSEHA.3452@.TK2MSFTNGP10.phx.gbl...
> Hi all,
> I was just playing around with some code to hide/show panels and I
> discovered that I am losing a variable's value when my sub is called from
a
> button in paneltwo. Why is this?
> Cheers and Thanks, Lerp
>
> Code below:
>
> <script language="vb" runat="server">
> Dim myvalue as Long
> SUB Page_Load(Sender As Object, E As EventArgs)
> panelone.visible = true
> paneltwo.visible = false
> END SUB
> Sub One(Sender As Object, E As EventArgs)
> myvalue = 7
> panelone.visible = false
> paneltwo.visible = true
> response.write(myvalue & " IS MY VALUE" & "<BR>")
> End Sub
>
> Sub Two(Sender As Object, E As EventArgs)
> Dim curVal = myvalue
> panelone.visible = true
> paneltwo.visible = false
> response.write(curVal & " IS CurVal VALUE" & "<BR>")
> ******************************** This turns out to be ZERO
> End Sub
> </script>
>
> <html>
> <head>
> <title></title>
> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
> <head></head>
> <body>
> <form runat="server">
> <asp:panel ID="panelone" runat="server">
> <table width="600" cellpadding="2" cellspacing="0" border="0">
> <tr valign="top">
> <td align="left" class="bodycopy">
> <asp:Button id="submitform1" text="Panel One Button" OnClick="One"
> runat="server" CssClass="but" />
> </td>
> </tr>
> </table>
> </asp:panel>
>
> <asp:panel ID="paneltwo" runat="server">
> <table width="600" cellpadding="2" cellspacing="0" border="0">
> <tr valign="top">
> <td align="left" class="bodycopy">
> <asp:Button id="submitform2" text="Panel Two Button" OnClick="Two"
> runat="server" CssClass="but" />
> </td>
> </tr>
> </table>
> </asp:panel>
>
> </form>
> </body>
> </html>
>
ah man, I knew it...
I ended up using session vars anyways...thx for help.
Thx Kevin,
Cheers, Lerp
"Kevin Spencer" <kspencer@.takempis.com> wrote in message
news:OlXcGbYSEHA.3768@.TK2MSFTNGP11.phx.gbl...
> HTTP is stateless. This means that every time a Page Posts back,
everything
> is re-initialized. If you change the value of a private member of your
class
> in one instance, you have to persist it somehow between PostBacks.
> ViewState, Session, etc.
> --
> HTH,
> Kevin Spencer
> .Net Developer
> Microsoft MVP
> Big things are made up
> of lots of little things.
> "Lerp" <admin@.officience.ca> wrote in message
> news:OqL6aLPSEHA.3452@.TK2MSFTNGP10.phx.gbl...
from
> a
>
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