We have a RadTreeList that is inside an ASP.NET control.  On the Page_PreRender of the control we are resetting the selected item (TreeListName.Items[0].Selected = true). 

However, when we select something, navigate away from the page, and then back to the page the selected item is getting reset at some point to the selection that it was prior to navigating away.  This occurs despite the fact the the selection is getting forced in the PreRender event.

I believe this has something to do with Ajax and/or ViewState.  I tried turning off ViewState for the control using EnableViewState = false but the control did not render even though we are using the NeedDataSource event and there was a collection assigned to the DataSource within that event.  We have always used NeedDataSource so we know that it works when ViewState is enabled.

Do you have any suggestions or advice?

Thank you.

how can I save map as an image on my server?

I would like a openstreet map of a location with a marker that I can save as a jpg or png.

Marty

Hi,

On the kendo side of things there seems to be a databound event that you can subscribe to.  I cannot seem to use this on the htmlchart though.  I am trying to add it to the kendo widget element of the chart but it doesn't work.  I am moving away from server side stuff where possible so need this to be client based.

Any ideas?

Regards

Jon

I'm having a problem with the initial image in my image gallery not being resized when the image gallery is placed in a Bootstrap Collapse panel.  As soon as I click to scroll through the images, it works fine, but the initial image isn't resized when the panel is shown.  Below is some sample code that should illustrate the problem.  Any ideas on how to resolve this?

I have filtered my RadClientDataSource according to the information available in the docs.  The filter works momentarily.  When my button is clicked, I can see for a single moment that the grid displays the 1 record matching the filter criteria then all the rows come back.  I have tried calling the javascript function from a link and a button (as is shown in the code below).  Any ideas?

Here is the code for my page.

Hello there

I have a radComboBox

and I'm trying to accees the selected value from it in app_code(.cs)

there is any way to do it ?

Hello Team,

I am having  simple Radgrid. which I am binding with JSON object  like below :

$(document).ready(function () {
            $(window).load(function () {
                var JSONdata = [{ "ID": 1, "FirstName": "Chintan", "MiddleName": "Mukesh", "SurName": "Dave" }, { "ID": 2, "FirstName": "Pratik", "MiddleName": "Mukesh", "SurName": "Dave" }, { "ID": 3, "FirstName": "Devang", "MiddleName": "Subhash", "SurName": "Trivedi" }]
                var tableView = $find("<%=form1.FindControl("gridClientSide").ClientID%>").get_masterTableView();
                 tableView.set_dataSource(JSONdata);
                 tableView.dataBind();
            });
        });

Grid Code :

<telerik:RadGrid  ID="gridClientSide" runat="server" AutoGenerateColumns="false" AllowFilteringByColumn="true">
                <MasterTableView TableLayout="fixed">
                    <Columns>
                        <telerik:GridBoundColumn DataField="ID" HeaderText="ID" AllowFiltering="true" UniqueName="ID"></telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="FirstName" HeaderText="First Name" AllowFiltering="true"></telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="MiddleName" HeaderText="Middle Name" AllowFiltering="true" ></telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="SurName" HeaderText="Sur Name" AllowFiltering="true"></telerik:GridBoundColumn>
                    </Columns>
                </MasterTableView>
                <ClientSettings>
                    <ClientEvents OnCommand="RaiseCommand"/>
                </ClientSettings>
            </telerik:RadGrid>

function RaiseCommand(sender, args) {
           
            args.set_cancel(true);

            sender.get_masterTableView().filter(sender.get_masterTableView().get_filterExpressions().getItem(0).FieldName, sender.get_masterTableView().get_filterExpressions().getItem(0).FieldValue, sender.get_masterTableView().get_filterExpressions().getItem(0).FilterFunction, true);

//sender.rebind();
        }

In RaiseCommand function ,  I am trying to filter radgrid by setting  filter expression nothing error occurs but no change applies in rows of grid after execution of this function.

Please help....Please find attached filed

I changed something from demo example to my project and i use datasource in codebehind.  DataPager still works fine if i put RadListView datasource in PageLoad but DataPager doesn't work when i put RadListView datasource in event click of Button. Can you help me, please?

 - aspx:

<telerik:RadButton ID="RadButton1" runat="server" Text="RadButton" OnClick="Button1_Click"></telerik:RadButton>
        <br />
        <div>
                    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
                <AjaxSettings>
                    <telerik:AjaxSetting AjaxControlID="ListViewPanel1">
                        <UpdatedControls>
                            <telerik:AjaxUpdatedControl ControlID="ListViewPanel1" LoadingPanelID="RadAjaxLoadingPanel1"></telerik:AjaxUpdatedControl>
                        </UpdatedControls>
                    </telerik:AjaxSetting>
                </AjaxSettings>
            </telerik:RadAjaxManager>
            <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" MinDisplayTime="0">
            </telerik:RadAjaxLoadingPanel>
            <asp:Panel ID="ListViewPanel1" runat="server">
                <telerik:RadListView ID="RadListView1" Width="97%" AllowPaging="True" runat="server"
                    allowsorting="true" ItemPlaceholderID="ProductsHolder">
                    <LayoutTemplate>
                            <asp:Panel ID="ProductsHolder" runat="server">
                            </asp:Panel>
                            <table>
                                <tr>
                                    <td>
                                        <telerik:RadDataPager RenderMode="Lightweight" ID="RadDataPager1" runat="server" PagedControlID="RadListView1"
                                            PageSize="6">
                                            <Fields>
                                                <telerik:RadDataPagerButtonField FieldType="FirstPrev"></telerik:RadDataPagerButtonField>
                                                <telerik:RadDataPagerButtonField FieldType="Numeric"></telerik:RadDataPagerButtonField>
                                                <telerik:RadDataPagerButtonField FieldType="NextLast"></telerik:RadDataPagerButtonField>
                                                <telerik:RadDataPagerPageSizeField PageSizeText="Page size: "></telerik:RadDataPagerPageSizeField>
                                                <telerik:RadDataPagerGoToPageField CurrentPageText="Page: " TotalPageText="of" SubmitButtonText="Go"
                                                    TextBoxWidth="30"></telerik:RadDataPagerGoToPageField>
                                                <telerik:RadDataPagerTemplatePageField>
                                                    <PagerTemplate>
                                                        <div style="float: right; line-height: 34px; margin-left: 10px;">
                                                            Items
                                                        <asp:Label runat="server" ID="CurrentPageLabel" Text="<%# Container.Owner.StartRowIndex+1%>"></asp:Label>
                                                            to
                                                        <asp:Label runat="server" ID="TotalPagesLabel" Text="<%# Container.Owner.TotalRowCount > (Container.Owner.StartRowIndex+Container.Owner.PageSize) ? Container.Owner.StartRowIndex+Container.Owner.PageSize : Container.Owner.TotalRowCount %>"></asp:Label>
                                                            of
                                                        <asp:Label runat="server" ID="TotalItemsLabel" Text="<%# Container.Owner.TotalRowCount%>"></asp:Label>
                                                            <br />
                                                        </div>
                                                    </PagerTemplate>
                                                </telerik:RadDataPagerTemplatePageField>
                                            </Fields>
                                        </telerik:RadDataPager>
                                    </td>
                                </tr>
                            </table>
                    </LayoutTemplate>
                    <ItemTemplate>
                         <table>
                                <tr>
                                    <td style="width: 140px; text-align: left; height: 120px">
                                        <asp:Image ID="Img1" runat="server"
                                            ImageUrl='<%# Eval("_Image") %>' Height="100" Width="130" />
                                    </td>
                                    <td style="vertical-align: top; text-align: left">
                                        <asp:LinkButton runat="server" ID="Title" Font-Bold="true" CommandName="Select"
                                            Text='<%# Eval("_Title") %>'></asp:LinkButton>
                                        <asp:Label runat="server" ID="lblink" Font-Size="Small"
                                            Text='<%# Eval("_Link") %>' Visible="false" />
                                    </td>
                                </tr>
                            </table>
                    </ItemTemplate>
                </telerik:RadListView>  
            </asp:Panel>
          
            <asp:SqlDataSource ID="SqlDS" runat="server" ConnectionString="<%$ appSettings:sqlconn %>"
                ProviderName="System.Data.SqlClient" ></asp:SqlDataSource>

- aspx.cs work fine (don't use Button):

        protected void Page_Load(object sender, EventArgs e)
        {
            _News.NewsList("20", "", "08/20/2016", "08/30/2016", "0", "0", 0);
            RadListView1.DataSource = _News._znews;
            RadListView1.DataBind();
        }

- aspx.cs DataPager doesn't work:

        protected void Page_Load(object sender, EventArgs e)

         {

        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            _News.NewsList("20", "", "08/20/2016", "08/30/2016", "0", "0", 0);
            RadListView1.DataSource = _News._znews;
            RadListView1.DataBind();
        }

Thanks.