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RadRotatorItem as sqldatasource control parameter

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Rotator
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Dusty
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Dusty asked on 27 Oct 2015, 06:18 PM
Is there a way to set a value in the RadRotatorItem that can be used as an asp control parameter in a SqlDataSource?  I have a RadRotator with a client item shown event that I want to fire a repaint of RadHTMLCharts on a page when the Rotator hit's the next item.  I want to be able to specify the value passed to the control parameter.

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Marin Bratanov
Telerik team
answered on 28 Oct 2015, 11:15 AM

Hello,

I think the easiest approach would be to store that info in a span or a hidden span in the rotator item so you can retrieve it.

Then, in the ItemShown event, you can put it in a hidden field or textbox so you can use it for the server. request.

Regards,

Marin Bratanov
Telerik
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Dusty
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answered on 29 Oct 2015, 03:50 PM

Thanks - I tried using a similar method but I think I'm unfamiliar with the repaint method of a RadHtmlChart and it rebinding from the datasource attached to it.  Through the rotator, i'm trying to update a control that is a control parameter of the datasource of the chart, but on repaint, nothing seems to happen.

 

<telerik:RadRotator ID="RadRotator1" runat="server" Width="1200px" ItemWidth="150"
                        Height="250px" ItemHeight="188" ScrollDuration="500" FrameDuration="5000" PauseOnMouseOver="false" RotatorType="Carousel" OnClientItemShown="OnClientItemShown">
                        <Items>
                            <telerik:RadRotatorItem ID="rr648">
                                <ItemTemplate>
                                    <asp:Image ID="Image1" runat="server" ImageUrl="~/Img/Employees/Aaron_g.jpg" />
                                </ItemTemplate>
                            </telerik:RadRotatorItem>
                            <telerik:RadRotatorItem ID="rr762">
                                <ItemTemplate>
                                    <asp:Image ID="Image2" runat="server" ImageUrl="~/Img/Employees/Travis_p.jpg" />
                                </ItemTemplate>
                            </telerik:RadRotatorItem>
                            <telerik:RadRotatorItem ID="rr764">
                                <ItemTemplate>
                                    <asp:Image ID="Image3" runat="server" ImageUrl="~/Img/Employees/Frank_j.jpg" />
                                </ItemTemplate>
                            </telerik:RadRotatorItem>
                            <telerik:RadRotatorItem ID="rr769">
                                <ItemTemplate>
                                    <asp:Image ID="Image4" runat="server" ImageUrl="~/Img/Employees/Mark_k.jpg" />
                                </ItemTemplate>
                            </telerik:RadRotatorItem>
                            <telerik:RadRotatorItem ID="rr770">
                                <ItemTemplate>
                                    <asp:Image ID="Image5" runat="server" ImageUrl="~/Img/Employees/Kevin_dawe.jpg" />
                                </ItemTemplate>
                            </telerik:RadRotatorItem>
                        </Items>
                    </telerik:RadRotator>

<telerik:RadHtmlChart ID="rchContractFunnel" runat="server" DataSourceID="sdsContractBreakdown" Height="210px" Width="500px" Skin="Silk">
                            <PlotArea>
                                <Series>
                                    <telerik:FunnelSeries DynamicHeightEnabled="false" DynamicSlopeEnabled="false" SegmentSpacing="0" NeckRatio="0.3" DataFieldY="Total" DataNameField="name">
                                    </telerik:FunnelSeries>
                                </Series>
                            </PlotArea>

                            <Legend>
                                <Appearance Visible="true"></Appearance>
                            </Legend>
                            <ChartTitle Text="Week To Date"></ChartTitle>

                        </telerik:RadHtmlChart>

<asp:SqlDataSource ID="sdsContractBreakdown" ConnectionString="<%$ ConnectionStrings:CMICDATAConn %>"
                SelectCommand="asp_GetSalesDashboardData_ContractFunnel" SelectCommandType="StoredProcedure" runat="server">
                <SelectParameters>
                    <asp:ControlParameter ControlID="rrTeam" DefaultValue="648" Name="EmpID" PropertyName="Text" />
                    <asp:ControlParameter ControlID="rblDateRange" DefaultValue="1" Name="DateTypeID" PropertyName="SelectedValue" />
                </SelectParameters>
            </asp:SqlDataSource>

<asp:Label ID="rrTeam" runat="server" Text="" style="visibility:hidden;"></asp:Label>

<telerik:RadScriptBlock runat="server" ID="rcb1">
            <script type="text/javascript">
                function OnClientItemShown(sender, args) {

                    var rotatorItem = args.get_item();
                    var itemElem = rotatorItem.get_element();
                    var wrapper = itemElem.firstChild;
                    var ds = $find("<%=sdsContractBreakdown.ClientID %>");

                    if (wrapper.id == "RadRotator1_i0") {
                        var rrTeam = document.getElementById("rrTeam").innerHTML;
                        var team = "648";
                        rrTeam = team;
                    }
                    if (wrapper.id == "RadRotator1_i1") {
                        var rrTeam = document.getElementById("rrTeam").innerHTML;
                        var team = "762";
                        rrTeam = team;
                    }
                    if (wrapper.id == "RadRotator1_i2") {
                        var rrTeam = document.getElementById("rrTeam").innerHTML;
                        var team = "764";
                        rrTeam = team;
                    }
                    if (wrapper.id == "RadRotator1_i3") {
                        var rrTeam = document.getElementById("rrTeam").innerHTML;
                        var team = "769";
                        rrTeam = team;
                    }
                    if (wrapper.id == "RadRotator1_i4") {
                        var rrTeam = document.getElementById("rrTeam").innerHTML;
                        var team = "770";
                        rrTeam = team;
                    }

                    setTimeout(function () {
                        var funnel = $find("<%=rchContractFunnel.ClientID %>");
                        funnel.set_dataSource(ds);
                        funnel.set_transitions(true);
                        funnel.repaint();
                    }, 1000);
                    
                }

            </script>
        </telerik:RadScriptBlock>

‚Äč

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Marin Bratanov
Telerik team
answered on 30 Oct 2015, 09:35 AM

Hello,

The repaint() method of RadHtmlChart only redraws its client-side rendering. It will not request new data because the control does not have a built-in facility for invoking postbacks.

I can suggest two approaches to your case:

Regards,

Marin Bratanov
Telerik
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