Hi
I am having 2 webzones in my aspx page with a webpartmanager.

<asp:LinkButton ID="EditModeLinkButton" Runat="server" OnClick="EditModeLinkButton_Click">Personalize this Page</asp:LinkButton>
<br />
<asp:WebPartManager ID="WebPartManager1" Runat="server">
</asp:WebPartManager>

I also have a link button and onclick of that buttton am having a script as below:-

"
void EditModeLinkButton_Click(Object sender, System.EventArgs e) {
if (WebPartManager1.DisplayMode == WebPartManager.BrowseDisplayMode)
{
WebPartManager1.DisplayMode = WebPartManager.EditDisplayMode;
EditModeLinkButton.Text = "End Personalization";
}
else {
WebPartManager1.DisplayMode = WebPartManager.BrowseDisplayMode;
EditModeLinkButton.Text = "Personalize this page";
}
}
"
when i run my application and click on th link button to personalize the page it gives me the following error: -

"The specified display mode is not supported on this page. Make sure personalization is enabled and the corresponding zones are present on the page. The display mode can be set during and after Page_Init. Parameter name: value".

Can anybody help me resolve this error?

You must add a EditorZone to your page before you can use the EditDisplayMode, for example:

<asp:EditorZone ID="EditorZone1" Runat="server">


 <ZoneTemplate>


                <asp:BehaviorEditorPart Runat="server" ID="BehaviorEditorPart1" />


            </ZoneTemplate>


</asp:EditorZone>

Thanks Fredrick.
Can you help me explain what actaully is tht editorzone and behavioureditorpart required for?
I am surpised tht just because of adding these lines my code is working as expeccted?

please suggest.

When you switch the mode of your WebPartManager to Edit mode, you can edit the WebParts. By editing a WebPart the EditorParts added to the EditorZone will be displayed. The BehaviorEditorPart is one of four EdirotParts.

A list of the four EditorParts shipped with ASP.Net 2.0:

BehaviorEditorPart
AppearanceEditorPart
LayoutEditorPart
PropertyGridEditorPart

With the editor part you can customize the WebPart.

To read more about this you can read this post on my blog