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Pager show top and botom problem Q10

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Grid

This is a migrated thread and some comments may be shown as answers.

Jan Mucha asked on 11 Mar 2010, 04:28 PM

Hi i have problem with pager. My pager show top and bottom after postBack or AjaxPostBack or my pagerSetting is AlwaysVisible="true" Position="Bottom". First loaded is correct. Same problem is in RadTab when OnClienttab send ajaxrequest for update visible grid.

    
              <telerik:RadGrid ID="GridKenticoUser" runat="server" EnableDragToSelectRows="True" 
        
                    AllowFilteringByColumn="false" AllowSorting="True" AutoGenerateColumns="false" 
        
                    AllowMultiRowSelection="True" PageSize="500" Width="99%" OnNeedDataSource="GridKenticoUser_NeedDataSource" 
        
                    OnItemCommand="GridKenticoUser_ItemCommand"> 
        
                    <MasterTableView Width="100%" AllowPaging="true" DataKeyNames="UzivatelID, LektorID, Uzivatel"  PagerStyle-Position="Bottom"> 
        
                        <HeaderStyle HorizontalAlign="Left" /> 
        
                        <ItemStyle HorizontalAlign="Left" /> 
        
                        <AlternatingItemStyle HorizontalAlign="Left" /> 
        
                        <PagerStyle AlwaysVisible="true" Position="Bottom" /> 
        
                        <Columns> 
        
                            <telerik:GridClientSelectColumn> 
        
                                <HeaderStyle Width="35" /> 
        
                            </telerik:GridClientSelectColumn> 
        
                            <telerik:GridBoundColumn DataField="Uzivatel" HeaderText="Uživatel" AutoPostBackOnFilter="true" 
        
                                AllowFiltering="false" ShowFilterIcon="false" FilterControlWidth="100%" CurrentFilterFunction="Contains"> 
        
                                <HeaderStyle Width="150" /> 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridDateTimeColumn DataField="Zalozen" HeaderText="Založen" AutoPostBackOnFilter="true" 
        
                                AllowFiltering="false" ShowFilterIcon="false" FilterControlWidth="100%" CurrentFilterFunction="Contains" 
        
                                DataFormatString="{0:dd.MM.yy}"> 
        
                                <HeaderStyle Width="60" /> 
        
                            </telerik:GridDateTimeColumn> 
        
                            <telerik:GridBoundColumn DataField="LektorFullName" HeaderText="Lektor" AutoPostBackOnFilter="true" 
        
                                AllowFiltering="false" ShowFilterIcon="false" FilterControlWidth="100%" CurrentFilterFunction="Contains"> 
        
                                <HeaderStyle Width="150" /> 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridTemplateColumn AllowFiltering="false" HeaderText="Akce"> 
        
                                <ItemTemplate> 
        
                                    <div style="padding-left: 10px;"> 
        
                                        <asp:ImageButton runat="server" ID="BtnParuj" CommandName="Paruj" ImageUrl="~/App_Themes/GopasRed/Images/16x16/ok.png" 
        
                                            Visible='<%# (String.IsNullOrEmpty(Eval("LektorID").ToString()))?true:false %>' 
        
                                            ToolTip="Zpárovat" />&nbsp; 
        
                                        <asp:ImageButton runat="server" ID="ImageButton1" CommandName="OdParuj" ImageUrl="~/App_Themes/GopasRed/Images/16x16/cancel.png" 
        
                                            Visible='<%# (!String.IsNullOrEmpty(Eval("LektorID").ToString()))?true:false %>' 
        
                                            ToolTip="Zrušit párování" /> 
        
                                    </div> 
        
                                </ItemTemplate> 
        
                            </telerik:GridTemplateColumn> 
        
                            <telerik:GridTemplateColumn AllowFiltering="false"> 
        
                            </telerik:GridTemplateColumn> 
        
                        </Columns> 
        
                    </MasterTableView> 
        
                    <ClientSettings> 
        
                        <ClientEvents /> 
        
                        <Scrolling AllowScroll="True" UseStaticHeaders="true" SaveScrollPosition="True" ScrollHeight="390" /> 
        
                        <Selecting AllowRowSelect="true" /> 
        
                    </ClientSettings> 
        
                    <GroupingSettings CaseSensitive="false" /> 
        
                </telerik:RadGrid>

13 Answers, 1 is accepted

answered on 12 Mar 2010, 12:26 PM

grid.zip

Hi guys,

I am not able to reproduce the described problem. You can find attached to this message a simple test page which is working as expected on my end. Give it a try and let me know how to modify it in order to reproduce the issue.

All the best,
Pavel
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

answered on 12 Mar 2010, 02:28 PM

I made my own workaround. I have all my grids inherited from the same parent, so I did this in the parent:

                            protected override void OnItemCreated(GridItemEventArgs e)         
                    {         
                        base.OnItemCreated(e);         
            ...         
                        switch (e.Item.ItemType)         
                        {         
            ...         
                            case GridItemType.Pager:         
                                // Need a work-around for a problem that appeared in telerik 2010 Q1:         
                                // Paging item is created twice, first time if renders at the top, another time at the bottom         
                                // although I have setting this.MasterTableView.PagerStyle.Position = GridPagerPosition.Bottom;         
                                // Since I need to render at the bottom only, I need to skip the first time and proceed         
                                // with the seconde time.         
                                // I should be careful to watch next telerik releases since they may fix or change this behaviour.         
                                if (this.ID != this.previousGridIdForPaging)         
                                {         
                                    // this is the first paging item for this grid, skip it, we will render the next one         
                                    e.Item.Visible = false;         
                                    this.previousGridIdForPaging = this.ID;         
                                    break;         
                                }         
            ...         
                                break;         
                        }         
                    }         
                    private string previousGridIdForPaging;         
                     
                     

With this, all my grids show only the bottom pager item.

Before the 2010 Q1 release, there was no any problem with paging.

I hope the work-around will help telerik to pinpoint the problem.