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I have a ListView control as follows (for posting here I've removed the values from my ItemTemplate):

<asp:ListView ID="ListView1" runat="server" DataSourceID="MyDataSource">
  <LayoutTemplate>
     <div id="requests" runat="server">
        <asp:Panel runat="server" id="itemPlaceholder"></asp:Panel>
     </div>
     <asp:DataPager runat="server" ID="DataPager" PageSize="3">
        <Fields>
            <asp:NumericPagerField ButtonCount="10" PreviousPageText="<--" NextPageText="-->" />
        </Fields>
     </asp:DataPager>
  </LayoutTemplate>
  <ItemTemplate>
     <div ID="itemPlaceholder" class="request" runat="server">
        <asp:LinkButton ID="button" runat="server" Text='...' CommandName="..." 
                CommandArgument='...' OnClick="..."
                style="...">
        </asp:LinkButton> -  
     </div>
  </ItemTemplate>
</asp:ListView>

This ListView exists as a user control (.ascx), which I've embedded into an ASPX web page.

As I expect, when the web page loads, for a list of 9 items, I get 3 pages of 3 items.

When I click to go to the next page, the page loads the next set of items correctly... but only for a brief second. Then a strange thing happens. The page embeds a copy of itself inside the page 6 times, each one of them underneath one of the fields on the form inside the page.

If I then attempt to go to the next or previous page, an ASP.NET server error appears:

The state information is invalid for this page and might be corrupted.

In the stack trace, it shows the following errors:

FormatException: The input is not a valid Base-64 string as it contains a non-base character, more than two padding characters, or a non-white space character among the padding characters.

ViewStateException: Invalid viewstate.

I was able to replicate this on both my browsers, IE8 and Chrome.

Community
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Ciaran Gallagher
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1 Answers1

0

you use listview event OnPagePropertiesChanging

like this

 <asp:ListView ID="lvCustomers" runat="server"   GroupPlaceholderID="groupPlaceHolder1"
ItemPlaceholderID="itemPlaceHolder1"    OnPagePropertiesChanging="OnPagePropertiesChanging">

in aspx.cs

protected void OnPagePropertiesChanging(object sender,PagePropertiesChangingEventArgs e)
{
    (lvCustomers.FindControl("DataPager1") as  DataPager).SetPageProperties(e.StartRowIndex, e.MaximumRows, false);
this.BindListView();
}

BindListView() is method for binding list view

visit this link for example

i hope it's helpfull

jayesh dhameliya
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