[Solved] Update RadGrid inside Repeater

[archimede]

I have a web page that shows a parameters grid for each parameter group.
To achieve this result I want to use an asp Repeater. I can see the grid correctly but the radGrid update seems not to work. I think the grid cannot find the datasource at the update event.

This is the part on my page:

<table width="100%;">
        <tr>
            <td>
                <div style="width: 7cm;">
                </div>
            </td>
            <td style="text-align: right;">
            <asp:Label ID="LabelGruppo" runat="server" Text="Label"></asp:Label>
                <telerik:RadComboBox ID="RadComboBoxGruppo" runat="server" DataSourceID="ObjectDataSourceGruppiParametriComboBox"
                    DataTextField="NomeGruppo" DataValueField="IdGruppo" AutoPostBack="True"
                    AppendDataBoundItems="True">
                    <Items>
                        <telerik:RadComboBoxItem runat="server" Text="---" Value="-1" />
                    </Items>
                </telerik:RadComboBox>
                <asp:ObjectDataSource ID="ObjectDataSourceGruppiParametriComboBox"
                    runat="server" SelectMethod="getAll"
                    TypeName="MachinaWeb.Services.BO_ConfigurazioneProgramma_GruppoParametri">
                    <SelectParameters>
                        <asp:ControlParameter ControlID="HiddenFieldIdCultura" Name="_idCultura"
                            PropertyName="Value" Type="Int64" />
                    </SelectParameters>
                </asp:ObjectDataSource>
            </td>
        </tr>
    </table>
    <asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSourceGruppiParametri"
        OnItemDataBound="ParentRepeater_ItemDataBound">
        <HeaderTemplate>
        </HeaderTemplate>
        <FooterTemplate>
        </FooterTemplate>
        <ItemTemplate>
            <div id="IntestazioneGruppo" style="background-color: Orange; border: 1px solid black;
                text-align: center; margin-bottom: 11px;">
                <%# Eval("NomeGruppo") %></div>
            </b>
            <telerik:RadGrid ID="RadGridParametriConfigurazione" runat="server" EnableEmbeddedSkins="False"
                GridLines="None" Skin="MachinaWeb" AllowPaging="true" PageSize="15" AllowAutomaticUpdates="true">
                <ClientSettings>
                    <Selecting EnableDragToSelectRows="False" AllowRowSelect="True" />
                </ClientSettings>
                <MasterTableView AutoGenerateColumns="False">
                    <RowIndicatorColumn>
                        <HeaderStyle Width="20px"></HeaderStyle>
                    </RowIndicatorColumn>
                    <ExpandCollapseColumn>
                        <HeaderStyle Width="20px"></HeaderStyle>
                    </ExpandCollapseColumn>
                    <Columns>
                        <telerik:GridEditCommandColumn ButtonType="ImageButton" CancelImageUrl="~/Images/ImagesGrid/Cancel.gif"
                            EditImageUrl="~/Images/ImagesGrid/Edit.gif" UpdateImageUrl="~/Images/ImagesGrid/Update.gif"
                            InsertImageUrl="~/Images/ImagesGrid/Update.gif" UniqueName="EditCommandColumn" ItemStyle-Width="40px" />
                        <telerik:GridBoundColumn DataField="IdParametro" DataType="System.Int64" HeaderText="IdParametro"
                            SortExpression="IdParametro" UniqueName="IdParametro" Visible="false">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="IdCultura" DataType="System.Int64" HeaderText="IdCultura"
                            SortExpression="IdCultura" UniqueName="IdCultura" Visible="false">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="DescrizioneParametro" HeaderText="DescrizioneParametro"
                            SortExpression="DescrizioneParametro" UniqueName="DescrizioneParametro">
                        </telerik:GridBoundColumn>
                    </Columns>
                    <EditFormSettings>
                        <EditColumn>
                        </EditColumn>
                    </EditFormSettings>
                </MasterTableView>
            </telerik:RadGrid>
            <asp:ObjectDataSource ID="ObjectDataSourceParametri" runat="server" SelectMethod="getAll"
        TypeName="MachinaWeb.Services.BO_ConfigurazioneProgramma_Parametro">
        <SelectParameters>
            <asp:Parameter Name="_idGruppoParametro" Type="Int64" />
            <asp:ControlParameter ControlID="HiddenFieldIdCultura" Name="_idCultura" PropertyName="Value"
                Type="Int64" />
        </SelectParameters>
    </asp:ObjectDataSource>
            <asp:HiddenField ID="HiddenFieldIdGruppo" runat="server" Value='<%# DataBinder.Eval(Container.DataItem,"IdGruppo")%>' />
        </ItemTemplate>
        <SeparatorTemplate>
            <%----- fine gruppo -----%>
            <div style="margin-bottom: 20px;">
            </div>
        </SeparatorTemplate>
    </asp:Repeater>
    <asp:ObjectDataSource ID="ObjectDataSourceGruppiParametri" runat="server" SelectMethod="getAll"
        TypeName="MachinaWeb.Services.BO_ConfigurazioneProgramma_GruppoParametri">
        <SelectParameters>
            <asp:ControlParameter ControlID="HiddenFieldIdCultura" Name="_idCultura" PropertyName="Value"
                Type="Int64" />
            <asp:ControlParameter ControlID="RadComboBoxGruppo" Name="_idGruppoSelezionato" PropertyName="SelectedValue"
                Type="Int64" />
        </SelectParameters>
    </asp:ObjectDataSource>
    <asp:HiddenField ID="HiddenFieldIdCultura" runat="server" />

And this is code:

protected void Page_Load(object sender, EventArgs e)
    {
        HiddenFieldIdCultura.Value = ((SessionInformation)Session["sessionData"]).IdCultura.ToString();

        BO_Azienda bo_azienda = new BO_Azienda(((SessionInformation)Session["sessionData"]).IdAzienda);
        LabelNomeAzienda.Text = bo_azienda.NomeAzienda;
        LabelIntestazioneAzienda.Text = bo_azienda.Intestazione;
    }

    protected void ParentRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))
        {

            RadGrid radGrid = (RadGrid)e.Item.FindControl("RadGridParametriConfigurazione");
            ObjectDataSource ObjectDataSourceParametri = (ObjectDataSource)e.Item.FindControl("ObjectDataSourceParametri");
            ObjectDataSourceParametri.SelectParameters["_idGruppoParametro"].DefaultValue = ((HiddenField)e.Item.FindControl("HiddenFieldIdGruppo")).Value;

            radGrid.DataSource = ObjectDataSourceParametri;
            radGrid.DataBind();
        }
    }

[Iana Tsolova]

Hi archimede,

In order to enable automatic operation with RadGrid, set the AllowAutometicUpdates/AllowAutomaticDeletes/AllowAutomaticInserts properties to true. Also make sure the data source control is configured so it supports Insert, Update and Delete operations.

Additionally, I suggest that you modify your server side code as below:

protected void Page_Load(object sender, EventArgs e)
    {
        HiddenFieldIdCultura.Value = ((SessionInformation)Session["sessionData"]).IdCultura.ToString();

        BO_Azienda bo_azienda = new BO_Azienda(((SessionInformation)Session["sessionData"]).IdAzienda);
        LabelNomeAzienda.Text = bo_azienda.NomeAzienda;
        LabelIntestazioneAzienda.Text = bo_azienda.Intestazione;
    }

    protected void ParentRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))
        {

            RadGrid radGrid = (RadGrid)e.Item.FindControl("RadGridParametriConfigurazione");
            ObjectDataSource ObjectDataSourceParametri = (ObjectDataSource)e.Item.FindControl("ObjectDataSourceParametri");
            ObjectDataSourceParametri.SelectParameters["_idGruppoParametro"].DefaultValue = ((HiddenField)e.Item.FindControl("HiddenFieldIdGruppo")).Value;

            radGrid.DataBind();
        }
    }

And for a sample on how to achieve automatic data source operations with ObjectDataSource control, you can try out this code library.

Kind regards,
Iana
the Telerik team