RadGrid Paging Problem

[Lasly]

Hi,

I've a problem with paging on my radgrid.

To fill the DataSource i'm using the event NeedDataSource, and it works.

If i have a lot of rows (>= 100) and I try to change the page, my pager after 11 pages return at the third page..

Why??

If I have under 100 rows the pager works correctly..

This is the block where i put my RadGrid..

01.<telerik:RadGrid ID="grdPorzioni" runat="server" Skin="Sunset" AutoGenerateColumns="false" AllowPaging="true" Width="100%" AllowSorting="false" EnableViewState="false" BorderStyle="None">
02.    <PagerStyle AlwaysVisible="false" Mode="NumericPages" ShowPagerText="false" />
03.    <MasterTableView PageSize="10" AllowPaging="true" AllowSorting="false" ShowHeadersWhenNoRecords="false" TableLayout="Fixed" EnableViewState="false" BorderStyle="Solid" BorderWidth="1">
04.        <NoRecordsTemplate>
05.            <asp:Image runat="server" ID="imgNoRecord" ImageUrl="~/images/__banner.jpg" Width="60%" />
06.            <br />
07.            <asp:Label runat="server" ForeColor="Red" Font-Bold="true" ID="noRecord" Text="Non sono presenti delle porzioni per l'Unità Economica selezionata."></asp:Label>
08.        </NoRecordsTemplate>
09.        <Columns>
10.            <telerik:GridBoundColumn HeaderText="Porzione" DataField="Id" HeaderStyle-Width="100" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center">
11.            </telerik:GridBoundColumn>
12.            <telerik:GridBoundColumn HeaderText="Descrizione" DataField="Descrizione" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left">
13.            </telerik:GridBoundColumn>
14.        </Columns>
15.    </MasterTableView>
16.</telerik:RadGrid>

The Radgrid is inserted into of an ASP panel

Can you help me?

Regards

Cristian

[Pavlina]

Hello Martini,

In order to avoid this erroneous behavior you should set EnableViewState property of the RadGrid / MasterTableView to true:
ASPX:

<telerik:RadGrid ID="grdPorzioni" runat="server" Skin="Sunset" AutoGenerateColumns="false"
           AllowPaging="true" Width="100%" AllowSorting="false" EnableViewState="true"
           BorderStyle="None">
           <PagerStyle AlwaysVisible="false" Mode="NumericPages" ShowPagerText="false" />
           <MasterTableView PageSize="10" AllowPaging="true" AllowSorting="false" ShowHeadersWhenNoRecords="false"
               TableLayout="Fixed" EnableViewState="true" BorderStyle="Solid" BorderWidth="1">

Paging with disabled control and page ViewState is not supported.
http://www.telerik.com/help/aspnet-ajax/grdviewstateoptimization.html

Best wishes,
Pavlina
the Telerik team

[Lasly]

Thanks!!! :)


I've set EnabledViewState to false because i need to reload the data every time the page loads occurs ..now it works correctly...

Regards

Cristian

[Pavlina]

Hello Martini,

I suggest that you examine the project attached in the forum thread below and see if it helps to achieve your goal:
http://www.telerik.com/community/forums/aspnet-ajax/grid/customized-page-size.aspx

Regards,
Pavlina
the Telerik team

[Lasly]

Thanks..

i've found the problem...

in the code-behind i'm setting the page size.. i've delete this part and now my page size works...

thanks and regards

cristian

[Pavlina]

Hello Martini,

I am glad that you could solve the problem on your own. In case you have additional questions or problems, please do not hesitate to let us know.

Kind regards,
Pavlina
the Telerik team

[Prateek]

I have to load the data everytime the page loads based on certain conditions.
I turned on the EnableViewState but that does not change anything and I am still having problems with paging.

[Pavlina]

Hello Prateek,

Make sure that you are using AdvancedDataBinding techniques to bind your grid with data. For more information, you can refer to the following online example:
Advanced data-binding

Best wishes,
Pavlina
the Telerik team