Problem with Ajax and RadGrid

[Carlos]

Hi, im having some problems, im guessing is my Ajax
here is my page:

<asp:Content ID="Content2" ContentPlaceHolderID="cphContenido" runat="server">
    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="rggrupos">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="rggrupos" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="ImageButton1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="rgotros" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
<br />

<telerik:RadGrid ID="rggrupos" DataSourceID="dsGrupos" runat="server"
           AutoGenerateColumns="False" GridLines="none">
            <MasterTableView Width="100%">
                <GroupByExpressions>
                    <telerik:GridGroupByExpression>
                        <SelectFields>
                            <telerik:GridGroupByField FieldAlias="Grupo" FieldName="grupo"></telerik:GridGroupByField>

                        </SelectFields>
                        <GroupByFields>
                            <telerik:GridGroupByField FieldName="grupo" SortOrder="Ascending"></telerik:GridGroupByField>
                        </GroupByFields>
                    </telerik:GridGroupByExpression>
                </GroupByExpressions>
                <Columns>
                    <telerik:GridBoundColumn ColumnEditorID="usuario" UniqueName="usuario" SortExpression="usuario" HeaderText="" HeaderButtonType="TextButton"
                        DataField="usuario">
                    </telerik:GridBoundColumn>
                    <telerik:GridTemplateColumn UniqueName="temprespseg"  HeaderText="RESPSEG"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkrespseg" runat="server"/>
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempatender"  HeaderText="ATENDER"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkatender" runat="server" />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempcomentar"  HeaderText="COMENTAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkcomentar" runat="server"  />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempenterar"  HeaderText="ENTERAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkenterar" runat="server" />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="temparchivar"  HeaderText="ARCHIVAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkarchivar" runat="server"  />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                             </Columns>
            </MasterTableView>

        </telerik:RadGrid>


    <asp:SqlDataSource ID="dsGrupos" runat="server"
        ConnectionString="<%$ ConnectionStrings:MatrizTurnadoConnectionString %>"
        SelectCommand="SELECT * FROM [usuariosgrupo] Where owner = 'CJ398'">
    </asp:SqlDataSource>
    <br />
    <table>
    <tr>
        <td>
        <asp:Label ID="Label1" runat="server" Text="AGREGAR OTROS CONTACTOS"></asp:Label>
        </td>
        <td>
        <telerik:RadComboBox EmptyMessage="Selecciona Usuario" EnableLoadOnDemand="True" ShowMoreResultsBox="true"
                EnableVirtualScrolling="true" ID="rcbotros" Runat="server" DataSourceID="dsusuario"
                DataTextField="NC" DataValueField="emailLotusInt" Height="100px"
                Width="362px">
                </telerik:RadComboBox>
          </td>
    <td><asp:ImageButton
            ID="ImageButton1" runat="server" ImageUrl="~/images/agregar.bmp"
            Height="16px" Width="18px" />
        </td></tr></table>
    <asp:SqlDataSource ID="dsusuario" runat="server"
                ConnectionString="<%$ ConnectionStrings:cnnIntranet %>"
                SelectCommand="SELECT [RPE], [Nombre], [Apellido1], [Apellido2], [NombreCompleto], [emailLotusInt], RTRIM(Apellido1) +  ' ' + RTRIM(Apellido2) + ' '  + Nombre As NC FROM [Usuarios] WHERE ([emailLotusInt] IS NOT NULL) ORDER BY NC">
            </asp:SqlDataSource>

    <br />
    <telerik:RadGrid ID="rgotros" runat="server" AutoGenerateColumns="False"
        GridLines="None">
                <ClientSettings>
                    <Selecting AllowRowSelect="True" />
                </ClientSettings>
                <MasterTableView>
<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>
                    <Columns>
                        <telerik:GridBoundColumn DataField="txtnombre"  UniqueName="txtnombre" HeaderText="">
                        </telerik:GridBoundColumn>
                        <telerik:GridTemplateColumn UniqueName="temprespseg"  HeaderText="RESPSEG"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkrespseg" runat="server"/>
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempatender" HeaderText="ATENDER" >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkatender" runat="server" />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempcomentar"  HeaderText="COMENTAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkcomentar" runat="server"  />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="tempenterar"  HeaderText="ENTERAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkenterar" runat="server"   />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn UniqueName="temparchivar"  HeaderText="ARCHIVAR"  >
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkarchivar" runat="server"  />
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>
                            <telerik:GridButtonColumn Text="Borrar" CommandName="Delete"></telerik:GridButtonColumn>
                        </Columns>
                </MasterTableView>
        </telerik:RadGrid>


    <br />
</asp:Content>

And here is my code behind VB

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Request("id") = "" Then
            'Response.Redirect("inbox.aspx")
        End If
        If Not IsPostBack Then
            rggrupos.DataSourceID = "dsGrupos"
            dsGrupos.SelectCommand = "SELECT * FROM [usuariosgrupo] Where owner = '" & Request("rpe") & "'"
            Me.rggrupos.DataBind()
        End If
 End Sub
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnotro.Click

        If MyDataTable.Columns.Count = 0 Then
            MyDataTable.Columns.Add("txtnombre")
        End If

        Dim selectedvalue As String = rcbotros.SelectedItem.Text
        MyDataTable.Rows.Add(selectedvalue)
        rgotros.Rebind()
    End Sub
Protected Sub rgotros_ItemCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles rgotros.ItemCommand

        If e.CommandName = "Delete" Then
            Dim txtnombre As String = CType(e.Item, GridDataItem)("txtnombre").Text
            MyDataTable.Rows.Remove(MyDataTable.Select("txtnombre = '" & txtnombre & "'").First())
            rgotros.Rebind()
        End If

    End Sub
Public Property MyDataTable() As DataTable
        Get
            If Session("MyDataTable") Is Nothing Then
                Session("MyDataTable") = New DataTable()
            End If
            Return CType(Session("MyDataTable"), DataTable)
        End Get

        Set(ByVal Value As DataTable)
            Session("MyDataTable") = Value
        End Set

    End Property
    Protected Sub RadGrid1_NeedDataSource(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles rgotros.NeedDataSource
        rgotros.DataSource = MyDataTable
    End Sub

The problem is when i try to expand or collapse my grid groups i get an error:

Mensaje: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500
Línea: 6
Carácter: 84093
Código: 0
URI: http://MatrizTurnadoWeb/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=RadScriptManager1_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aes-ES%3a1f68db6e-ab92-4c56-8744-13e09bf43565%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2010.2.713.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aes-ES%3a1814ab69-dbf3-46be-b5e4-1b4e7d85f183%3a16e4e7cd%3aed16cbdc%3ab7778d6c%3a58366029%3af7645509%3a24ee1bba%3a1e771326%3aaa288e2d%3a874f8ea2%3adc7e0bd%3a1569bb5f%3a63b115ed%3a30f1f089%3a19620875%3a490a9d4e

 and the same error hapens with i hit the imagebutton
any idea could help, thanks alot for your time

Carlos

[Tsvetoslav]

Hello Carlos,

Do note the difference between Advanced and Simple data-binding and rework your implementation along the lines of Advanced data-binding only (this includes removing the call to the grid's DataBind() method from the Page_Load event).


Regards,
Tsvetoslav
the Telerik team