[Solved] System.Data.DataRowView displays instead of - SELECT - when row clicked

[Tim]

My Combobox has an ItemTemplate consisting of a label and 2 Radbuttons (Checkbox Toggletype) on each row.  The combox is loaded using a Datatable for now.  Everything works fine, except that when a user clicks on a Row instead of in an ectual checkbox, the dropdown closes gracefully but now says System.Data.DataRowView instead of EmptyMessage="- Select -"

        Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        If Not Page.IsPostBack Then

            DisplayPrintOptions.DataSource = GetPrintDisplayProfile()
            DisplayPrintOptions.DataBind()

        end if

Private Function GetPrintDisplayProfile() As DataTable

        'Get users Preferred Layout
        Dim dt As New DataTable()
        dt.Columns.Add(New DataColumn("ColumnDisplayName", GetType(String)))
        dt.Columns.Add(New DataColumn("Column", GetType(String)))
        dt.Columns.Add(New DataColumn("Display", GetType(Boolean)))
        dt.Columns.Add(New DataColumn("Print", GetType(Boolean)))

etc..

<telerik:RadComboBox ID="DisplayPrintOptions" runat="server" HighlightTemplatedItems="true" Width="100px" AutoPostBack="false"
                        Label="Display & Print Options:"
                        LabelCssClass="DisplayPrint-label" DropDownWidth="400" EmptyMessage="- Select -">
                     <HeaderTemplate>
                           <div style="width:305px;height:15px;">
                               <div style="display:block;float:right;color: rgb(0, 21, 110) !important;">
                                   Show in
                               </div>
                           </div>
                           <div style="width:350px;">
                               <div style="width:210px;float:left;padding:0 11px 0 11px;color: rgb(0, 21, 110) !important;">
                                   Name of Column
                               </div>
                               <div style="width:50px;float:right;margin-right:5px;color: rgb(0, 21, 110) !important;">
                                   Report
                               </div>
                               <div style="width:40px;float:right;color: rgb(0, 21, 110) !important;">
                                   Grid
                               </div>
                           </div>
                     </HeaderTemplate>
                     <ItemTemplate>
                        <ul id="DisplayPrint">
                            <li> <!-- Row -->
                                <ul>
                                    <li id="col1"><%# Eval("ColumnDisplayName")%></li>
                                    <li id="col3">
                                        <telerik:RadButton ID="ColReports" runat="server" ButtonType="ToggleButton" ToggleType="CheckBox"
                                                Checked='<%# DataBinder.Eval(Container.DataItem, "Display").ToString()%>' AutoPostBack="false"
                                                CommandName='<%# DataBinder.Eval(Container.DataItem, "Column").ToString()%>'>
                                        </telerik:RadButton>
                                    </li>
                                    <li id="col2">
                                        <telerik:RadButton ID="ColGrid" runat="server" ButtonType="ToggleButton" ToggleType="CheckBox"
                                                Checked='<%# DataBinder.Eval(Container.DataItem, "Print").ToString()%>' AutoPostBack="false"
                                                CommandName='<%# DataBinder.Eval(Container.DataItem, "Column").ToString()%>'>
                                        </telerik:RadButton>
                                    </li>
                                </ul>
                            </li> <!-- End of row -->
                        </ul>
                    </ItemTemplate>
                    <FooterTemplate>
                        <div style="float:right;"><telerik:RadButton ID="SubmitColumns" runat="server" Text="Submit" CausesValidation="false" OnClick="BuildGridColumns" /></div>
                    </FooterTemplate>
                    </telerik:RadComboBox>

[Hristo Valyavicharski]

Hi Tim,

it seems that you are not specifying the DataTextField and DataValueField. Try to set them and let us know if the issue still persist. If you meet any difficulties, please take a look at this online demo.

 Regards,
Hristo Valyavicharski
the Telerik team