Set datapager index equal to dropdown index

[Daniel Elliott]

I have a dropdown list in a pager template. I am attempting to set the page index of a listview using the dropdownlist in the datapager to allow the customer to jump to a record using more meaningful text than a page number. The page size will always be 1.

MARKUP

<telerik:RadListView ID="RadListView1" runat="server" AllowPaging="True" DataSourceID="sqlActPlus" ItemPlaceholderID="ActionContainer" PageSize="1">
            <LayoutTemplate>
                <asp:PlaceHolder ID="ActionContainer" runat="server" />
                <telerik:RadDataPager ID="RadDataPager1" runat="server" PagedControlID="RadListView1" PageSize="1">
                    <Fields>
                        <telerik:RadDataPagerButtonField FieldType="FirstPrev" />
                        <telerik:RadDataPagerButtonField FieldType="Numeric" />
                        <telerik:RadDataPagerButtonField FieldType="NextLast" />
                        <telerik:RadDataPagerTemplatePageField>
                            <PagerTemplate>
                                <asp:DropDownList ID="drpActionList" DataSourceID="sqlActPlus" DataTextField="Action" DataValueField="Action" runat="server" AutoPostBack="true" OnSelectedIndexChanged="drpActionList_SelectedIndexChanged">
                                </asp:DropDownList>
                            </PagerTemplate>
                        </telerik:RadDataPagerTemplatePageField>
                        <telerik:RadDataPagerTemplatePageField>
                            <PagerTemplate>
                                <div style="float: right">
                                    <b>Action
                                        <asp:Label runat="server" ID="CurrentPageLabel" Text="<%# Container.Owner.StartRowIndex+1%>" />
                                        to
                                        <asp:Label runat="server" ID="TotalPagesLabel" Text="<%# IIF(Container.Owner.TotalRowCount > (Container.Owner.StartRowIndex+Container.Owner.PageSize), Container.Owner.StartRowIndex+Container.Owner.PageSize, Container.Owner.TotalRowCount) %>" />
                                        of
                                        <asp:Label runat="server" ID="TotalItemsLabel" Text="<%# Container.Owner.TotalRowCount%>" />
                                        <br />
                                    </b>
                                </div>
                            </PagerTemplate>
                        </telerik:RadDataPagerTemplatePageField>
                    </Fields>
                </telerik:RadDataPager>
            </LayoutTemplate>
            <ItemTemplate>
                <fieldset>
                    <legend>Action</legend>
                    <table class="FullWidthTable">
                        <tbody>
                            <tr>
                                <th>
                                    Action Number
                                </th>
                                <th>
                                    Target Date
                                </th>
                                <th>
                                    Type
                                </th>
                            </tr>
                            <tr>
                                <td class="ReadOnlyValue">
                                    <%# Eval("ActionNo")%>
                                </td>
                                <td class="ReadOnlyValue">
                                    <%# Eval("TargetMast", "{0:d}")%>
                                </td>
                                <td class="ReadOnlyValue">
                                    <%# Eval("Type")%>
                                </td>
                            </tr>
                        </tbody>
                    </table>
                </fieldset>
            </ItemTemplate>
        </telerik:RadListView>

VB

Protected Sub drpActionList_SelectedIndexChanged(ByVal sender As DropDownList, ByVal e As System.EventArgs)
    Dim dataPager As Telerik.Web.UI.RadDataPager = DirectCast(RadListView1.FindControl("RadDataPager1"), Telerik.Web.UI.RadDataPager)
    If dataPager IsNot Nothing Then
         dataPager.PageIndex = sender.SelectedIndex ' I realize this line doesn't work
    End If
End Sub

The text value of the dropdown list is similar to "XXB123" and "IMO45687" and isn't always sequential. That is why I want to use the selected index.

[Tsvetina]

Hi Daniel,

You could try the following code which fires a Page command inside the RadDataPager, using as an argument the selected index of the dropdown:

DropDownList ddl = sender as DropDownList;
RadDataPager pager = ddl.NamingContainer.NamingContainer as RadDataPager;
pager.FireCommand("Page", ddl.SelectedIndex.ToString());

I hope it helps.

Greetings,
Tsvetina
the Telerik team