Disappearing Web Part Trick

21 Aug 2006 4:44 PM

AL

Hello, I'm pretty new to web part development. On playing around with this,
pretty much for the first time, I noticed that when I ran the page and closed
the web part, on subsequent runs of the page, the web part remains resolutely
closed.

I also noticed that resetting the controls ID property at design time, and
re-running the page caused them to reappear. Is this normal behaviour for web
parts or am I cracking up? Is there a more elegant way to get your part to
reappear after inadvertantly closing it during testing?

--
Intrigued,

Al

22 Aug 2006 1:26 AM

Ken Cox [Microsoft MVP]

Hi Al,

I hear ya! I ran into that same issue when I was working on the Web part
chapter of

ASP.NET 2.0 All-In-One Desk Reference For Dummies
http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471785989.html

I added a button to the page and a little code to reset (ResetAllState) the
state whenever I lost the parts. Here's the code from the book:

<%@ Page Language="VB" %>
<script runat="server">
Protected Sub Button1_Click _
(ByVal sender As Object, _
ByVal e As System.EventArgs)
    Dim intCount As Integer
    intCount = _
     PersonalizationAdministration.ResetAllState _
     (PersonalizationScope.User)
    Response.Redirect("starterpart.aspx")
End Sub
</script>

<html>
<head runat="server">
    <title>Reset Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:button id="Button1" runat="server"
        onclick="Button1_Click" text="Reset" />
    </div>
    </form>
</body>
</html>

Let us know if this helps?

Ken
Microsoft MVP [ASP.NET]

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"AL" <A*@discussions.microsoft.com> wrote in message
news:517110A3-CBC8-4550-B24D-A582879FA6F7@microsoft.com...
> Hello, I'm pretty new to web part development. On playing around with
> this,
> pretty much for the first time, I noticed that when I ran the page and
> closed
> the web part, on subsequent runs of the page, the web part remains
> resolutely
> closed.
>
> I also noticed that resetting the controls ID property at design time, and
> re-running the page caused them to reappear. Is this normal behaviour for
> web
> parts or am I cracking up? Is there a more elegant way to get your part
> to
> reappear after inadvertantly closing it during testing?
> --
> Intrigued,
>
> Al