I have a RadListView that is paged by a RadDataPager. The ListView is loaded correctly on the initial page load. After that the needdatasource method correctly retrieves the next set of results, but they are never displayed. From my investigation, it appears that it is related to the fact that the listview always has a page count of 1 while the datapager correctly calculates 2(13 items, with a page size of 10). The list view changes page index correctly, which retrieves the next page of results to set for the datasource. After setting the datasource the new items are never displayed. I am doing something very similar to the listview image gallery demo, so if it at least tried to add the new images and failed, I should get broken image links.  I think the listview is skipping binding the new results, since the list view thinks its out of its page range. Its worth noting we are using the 2013 Q2 controls, since this is new work for a customer with an existing site. We want to avoid updating versions to limit risk to the rest of the site.

<telerik:RadListView runat="server" ID="ImageGalleryDisplay" OnNeedDataSource="ImageGalleryDisplay_NeedDataSource" OnItemCreated="RadListView1_ItemCreated"
                AllowPaging="true" ItemPlaceholderID="ImagePlaceHolder" OnItemDataBound="RadListView_ItemDataBound">
                    <LayoutTemplate>
                       <asp:PlaceHolder ID="ImagePlaceHolder" runat="server">
                       </asp:PlaceHolder>
                       <telerik:RadDataPager ID="RadDataPager1" runat="server" PagedControlID="ImageGalleryDisplay"
                        PageSize="10">
                        <Fields>
                            <telerik:RadDataPagerButtonField FieldType="FirstPrev"></telerik:RadDataPagerButtonField>
                            <telerik:RadDataPagerButtonField FieldType="Numeric"></telerik:RadDataPagerButtonField>
                            <telerik:RadDataPagerButtonField FieldType="NextLast"></telerik:RadDataPagerButtonField>
                        </Fields>
                        </telerik:RadDataPager>
                    </LayoutTemplate>
                    <ItemTemplate>
                        <asp:Image ID="Image1" runat="server" ImageUrl='<%#Eval("ImageURL")%>' />
                    </ItemTemplate>
                    <AlternatingItemTemplate>
                        <asp:Image ID="Image2" runat="server" ImageUrl='<%#Eval("ImageURL")%>' />
                    </AlternatingItemTemplate>
                </telerik:RadListView>      


protected void ImageGalleryDisplay_NeedDataSource (object source, RadListViewNeedDataSourceEventArgs e)
            {           
            _photos = new List<Photo> ();
            LoadData ();
            ImageGalleryDisplay.DataSource = _photos;
            }

        protected void LoadData ()
            {         
            //dataSearch is our own special search type that returns a datatable and estimated hit count, they return the correct values

            DataTable fileIds = dataSearch.Retrieve<DataTable> (ImageGalleryDisplay.CurrentPageIndex * ImageGalleryDisplay.PageSize + 1, ImageGalleryDisplay.PageSize);
            ImageGalleryDisplay.VirtualItemCount = dataSearch.EstimateHitCount > 0 ? dataSearch.EstimateHitCount : 0;

            foreach (DataRow row in fileIds.Rows)
                {
                int id = Convert.ToInt32 (row["fileId"].ToString ());

                Photo photo = new Photo (id, String.Format("Handlers/ImageHandler.ashx?id={0}&height=100&width=100",id));
                _photos.Add (photo);
                }
            }

        protected void RadListView_ItemDataBound (object sender, RadListViewItemEventArgs e)
            {
            if (e.Item is RadListViewDataItem)
                {
                var dataItem = ((RadListViewDataItem)e.Item).DataItem;

                }
            }

        protected void RadListView1_ItemCreated (object sender, RadListViewItemEventArgs e)
            {
            if (e.Item is RadListViewDataItem)
                {
                Image img = e.Item.FindControl ("image1") as Image;
                }
            }

        protected void Comand2 (object sender, RadListViewPageChangedEventArgs e)
            {
            ImageGalleryDisplay.CurrentPageIndex = e.NewPageIndex;
            string i = ImageGalleryDisplay.PageCount.ToString();
            }

Hello,

i created a grid with multi-line footer according to this example:

http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/how-to/totals-in-grid-footers

and added an excel export according to this tutorial:

http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/functionality/exporting/overview

but opening the extracted xls file file i see footer data messed up with values concatenated in a single cell.

How to get a proper xls extraction?

Regards.

I am using RadListView and trying to bind the ItemTapped to my MVVM.

I can't seem to get this to work.  I can't find any examples online either.  

 

Thanks in advance.

Will

Hi, we are consdiering purchasing your UI for ASP.net packages.

I reviewed your ASP.net AJAX demo and came across the image editor control which seems like a control we would like to use and customize.

I saw there is an option to draw circles/rectangles, is there an option to edit their coordinates after they are drawn? is there an option to draw programmatically?

Thanks,

 

Oren

Telerik radAsyncUpload is not working in google chrome once application host in server. But if I run application in local its working.

Hi Team,

Telerik radAsyncUpload is not working in google chrome once application host in server. But if I run application in local its working.

using IE its working in both.

I am working with an older web application that has assembly version 2010 what is the best way to add the necessary files so I can work on this app

Hi ,

We are using radgrid menu and we don't want users to un-check all columns from columns menu of context menu.

Is there a way to hide or stop user unchecking some columns of columns menu item?

I tried this below code:

  void HeaderContextMenu_ItemCreated(object sender, RadMenuEventArgs e)
        {
                     if (e.Item.Value.Contains("Reference#") && e.Item.Controls.Count > 0)
                (e.Item.Controls[0] as CheckBox).Enabled = false;
        }

It will make readonly for that column option on first load, but once i un-check another column, it will get enabled for check/uncheck.

Is there any other way to achieve this?

Thanks

We are using a rad grid with edit form that opens in popup on the Edit event of each row. Currently grid refreshes each time the edit link is clicked and take time to open the Popup which is impacting the performance. Moreover if we cancel or close the popup
(handled by cancel event) the grid again refreshes and this action also takes time which in fact should be immediate.

Is there anyway to control the rebind of grid on these events.
Structure of grid:
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="radGridComingSoon">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="radGridComingSoon">
                </telerik:AjaxUpdatedControl>
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManager>
<telerik:RadAjaxLoadingPanel ID="comingSoonRadAjaxLoadingPanel" runat="server">
</telerik:RadAjaxLoadingPanel>

                            <telerik:RadGrid ID="radGridComingSoon" AllowSorting="True" AllowPaging="True" runat="server"
                                OnItemCreated="radGridComingSoon_ItemCreated" OnItemDataBound="radGridComingSoon_ItemDataBound"
                                GridLines="None" OnInsertCommand="radGridComingSoon_InsertCommand" OnUpdateCommand="radGridComingSoon_UpdateCommand"
                                OnDeleteCommand="radGridComingSoon_DeleteCommand" OnItemCommand="radGridComingSoon_ItemCommand"
                                BorderStyle="Solid" AutoGenerateColumns="false" AllowMultiRowEdit="false" EnableViewState="true"
                                OnPreRender="radGridComingSoon_PreRender" AllowCustomSorting="true">
                                <PagerStyle Mode="NextPrevAndNumeric" PrevPageText="Prev" FirstPageText="First" NextPageText="Next"
                                    LastPageText="Last"></PagerStyle>
                                <MasterTableView Width="100%" CommandItemDisplay="Top" DataKeyNames="StandardNumber"
                                    AutoGenerateColumns="false" InsertItemDisplay="Top" InsertItemPageIndexAction="ShowItemOnFirstPage"
                                    EditMode="PopUp">
                                    <EditFormSettings InsertCaption="Add Coming Soon" CaptionFormatString="Edit Coming Soon">
                                        <PopUpSettings Modal="true" Width="742px" Height="1400px" ZIndex="201" />
                                    </EditFormSettings>
                                    <ItemTemplate>
                                        <table class="expandable standards-table">
                                            <tbody>
                                                <tr data-id='<%# Eval("ComingSoonId") %>'>
                                                    <td width="100px">
                                                        <asp:Label runat="server" ID="StandardNumberLabel" Text='<%# Eval("StandardNumber") %>'></asp:Label>
                                                          <td class="icon-column" width="50px" id="tdEditDeleteLink" runat="server">
                                                        <asp:LinkButton ID="btnUpdateEdited" runat="server" CommandName="Edit" CssClass="Edit-Summary"><i class="icon edit"></i></asp:LinkButton>
                                                        <asp:LinkButton ID="lnkBtnDelete" runat="server" CommandName="Delete" CssClass="delete"><i class="icon remove delete"></i></asp:LinkButton>
                                                    </td>
                                                    <td>
                                                        <asp:Label runat="server" ID="lblChange" Text='<%# Eval("ComingSoonId") %>' CssClass="hide"></asp:Label>
                                                    </td>
                                                </tr>
                                            </tbody>
                                        </table>
                                    </ItemTemplate>
                                    <Columns>
                                        <telerik:GridTemplateColumn HeaderText="Standard No." SortExpression="StandardNumber"
                                            UniqueName="StandardNumber" DataField="StandardNumber" ItemStyle-CssClass="ColorClass">
                                     
                                        <telerik:GridTemplateColumn HeaderText="ComingSoonId" SortExpression="ComingSoonId"
                                            UniqueName="ComingSoonId" DataField="ComingSoonId" Display="false" EditFormHeaderTextFormat="">
                                        </telerik:GridTemplateColumn>
                                    </Columns>
                                    <NoRecordsTemplate>
                                        <div>
                                            No records to display</div>
                                    </NoRecordsTemplate>
                                    <EditFormSettings EditFormType="Template">
                                        <FormTemplate>
                                            <div class="modal coming-soon-modal">
                                                <h3 class="brand modal-sub-title">
                                                    Brand: <strong>'<%#strBrandName %>'</strong></h3>
                                                <div class="modal-form">
                                                   
                                                        <asp:TextBox ID="txtCompDate" runat="server" CssClass="datepicker"></asp:TextBox>
                                                        <asp:Button ID="btnUpdate" CssClass="btn" Text='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "Insert", "Update") %>'
                                                            runat="server" CommandName='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "PerformInsert", "Update")%>'>
                                                        </asp:Button>&nbsp;
                                                        <asp:Button ID="btnCancel" Text="Cancel" CssClass="cancel" runat="server" CausesValidation="False"
                                                            CommandName="Cancel"></asp:Button>
                                                    </fieldset>
                                                  
                                                </div>
                                            </div>
                                        
                                        </FormTemplate>
                                    </EditFormSettings>
                                    <CommandItemSettings AddNewRecordText="Add new record" AddNewRecordImageUrl="/_layouts/images/HBSImages/add-record-icon.gif"
                                        RefreshText="Refresh" RefreshImageUrl="/_layouts/images/HBSImages/refresh-icon.gif"
                                        ShowRefreshButton="false"></CommandItemSettings>
                                </MasterTableView>
                                <ClientSettings>
                                    <ClientEvents OnRowDblClick="RowDblClick"></ClientEvents>
                                </ClientSettings>
                            </telerik:RadGrid>
                      

I have this RadGrid

 

I am using a stored procedure to to my updates and have this C# code:

 

I get an error message when attempting to convert the checkbox value to a boolean value.

 

How can I accomplish this?