Selection out of range Parameter name: value (radCombobox in radgrid)

[cimscims]

I am getting the error "Selection out of range Parameter name: value". I have a radcombobox inside a FormTemplate in the radgrid.
Find the code for reference.

<telerik:RadGrid AutoGenerateColumns="False" ID="rgModel" Skin="WebBlue"
        AllowPaging="True" runat="server" OnItemDataBound="rgModel_ItemDataBound">
        <PagerStyle Mode="NextPrevAndNumeric" />
        <MasterTableView DataKeyNames="ModelId" CommandItemDisplay="Top" CommandItemSettings-ShowRefreshButton="false">
            <Columns>
                    <telerik:GridEditCommandColumn  UniqueName="EditCommandColumn1" ButtonType="ImageButton" >
                    <HeaderStyle Width="20px" />
                    <ItemStyle CssClass="MyImageButton" />
                </telerik:GridEditCommandColumn>
                <telerik:GridBoundColumn HeaderText="Manufacturer" DataField="Manufacturer"
                    UniqueName="Manufacturer" HeaderStyle-HorizontalAlign="left" />
                <telerik:GridButtonColumn CommandName="Delete" Text="Delete" UniqueName="DeleteColumn" ConfirmText="Do You want to delete the Manufacturer?">
                </telerik:GridButtonColumn>
            </Columns>
            <EditFormSettings EditFormType="Template">
                <FormTemplate>
                    <table id="Table3" cellspacing="1" cellpadding="1" width="500" border="0" class="module">
                        <tr>
                            <td>Manufacturer:</td>
                            <td>
                                <telerik:RadComboBox ID="ddlManufacturer" AppendDataBoundItems="true" runat="server" Skin="WebBlue"
                                    SelectedValue='<%# Bind("ManufacturerId")%>'>
                                </telerik:RadComboBox>
                            </td>
                        </tr>
                        <tr>
                            <td> </td>
                            <td>
                                    <asp:Button ID="btnUpdate" Text='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "Insert", "Update") %>'
                                    runat="server" CommandName='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "PerformInsert", "Update")%>'>
                                </asp:Button>
                                <asp:Button ID="btnCancel" Text="Cancel" runat="server" CausesValidation="False"
                                CommandName="Cancel"></asp:Button>
                            </td>
                        </tr>
                    </table>
                </FormTemplate>
            </EditFormSettings>
        </MasterTableView>
    </telerik:RadGrid>

Protected Sub rgModel_ItemDataBound(ByVal source As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs)
        Dim blnReturn As Boolean
        Dim strErrMsg As String = String.Empty
        Dim interrno As Integer
        Dim dtbManufacturer As New DataTable


        If (TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode) Then

            Dim ddlManufacturer As Telerik.Web.UI.RadComboBox = e.Item.FindControl("ddlManufacturer")

            blnReturn = _objW.GetManufacturers(dtbManufacturer)

            If Equals(blnReturn, True) Then
    ddlManufacturer.Items.Clear()
    ddlManufacturer.SelectedValue = Nothing
                ddlManufacturer.DataSource = dtbManufacturer
                ddlManufacturer.DataTextField = dtbManufacturer.Columns(1).ColumnName
                ddlManufacturer.DataValueField = dtbManufacturer.Columns(0).ColumnName
                ddlManufacturer.DataBind()
            End If
        End If
    End Sub

[cimscims]

Any ideas?

[Princy]

Hello,

You could set the SelectedValue directly from code-behind like below and check whether this eliminates the error.

VB.Net:

ddlManufacturer.Items.Clear()
ddlManufacturer.SelectedValue = Nothing
ddlManufacturer.DataSource = dtbManufacturer
ddlManufacturer.DataTextField = dtbManufacturer.Columns(1).ColumnName
ddlManufacturer.DataValueField =dtbManufacturer.Columns(0).ColumnName
ddlManufacturer.SelectedValue = DirectCast(DataBinder.Eval(e.Item.DataItem, "ManufacturerId").ToString(), String)
ddlManufacturer.DataBind()

Thanks,
Princy.

[cimscims]

Thank you very much Princy. It worked fine...

[Leidi]

Please help me! I don't understand this error:

Error de servidor en la aplicación '/'.

Selection out of range
Nombre del parámetro: value
Descripción: Excepción no controlada al ejecutar la solicitud Web actual. Revise el seguimiento de la pila para obtener más información acerca del error y dónde se originó en el código.

Detalles de la excepción: System.ArgumentOutOfRangeException: Selection out of range
Nombre del parámetro: value

Error de código fuente:

Se ha generado una excepción no controlada durante la ejecución de la solicitud Web actual. La información sobre el origen y la ubicación de la excepción pueden identificarse utilizando la excepción del seguimiento de la pila siguiente.
Seguimiento de la pila:

[ArgumentOutOfRangeException: Selection out of range Nombre del parámetro: value] Telerik.Web.UI.RadComboBox.PerformDataBinding(IEnumerable dataSource) +191 Telerik.Web.UI.RadComboBox.OnDataSourceViewSelectCallback(IEnumerable data) +510 System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +34 Telerik.Web.UI.RadComboBox.OnDataBinding(EventArgs e) +1296 Telerik.Web.UI.RadComboBox.PerformSelect() +37 System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +74 Telerik.Web.UI.RadComboBox.DataBind() +71 System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +114 System.Web.UI.WebControls.BaseDataBoundControl.OnPreRender(EventArgs e) +22 Telerik.Web.UI.RadDataBoundControl.OnPreRender(EventArgs e) +36 Telerik.Web.UI.RadComboBox.OnPreRender(EventArgs e) +90 System.Web.UI.Control.PreRenderRecursiveInternal() +88 System.Web.UI.Control.PreRenderRecursiveInternal() +160 System.Web.UI.Control.PreRenderRecursiveInternal() +160 System.Web.UI.Control.PreRenderRecursiveInternal() +160 System.Web.UI.Control.PreRenderRecursiveInternal() +160 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +883