Combobox Filter: Value 'All' missing

[Marcus]

Hello All,

my filter is combobox: template with 2 columns instead of value 'All' is empty (see Attachment). It works correctly.
how can I get value 'All' on the top.

<telerik:GridTemplateColumn DataField="Type"
            FilterControlAltText="Filter TypeName column" HeaderText="<%$Resources:Texte, Type%>"
            SortExpression="Type" UniqueName="Type">
           <ItemTemplate>
              <asp:Label ID="Label1" runat="server" ToolTip='<%#Bind("TypeName")%>' Text='<%# Bind("Type") %>'></asp:Label>
           </ItemTemplate>

            <FilterTemplate>
                <telerik:RadComboBox ID="RadComboBoxCode" DataSourceID="SqlDataSource2" DataTextField="Code" Width="100px"
                    DataValueField="Code" Height="100px" AppendDataBoundItems="true" SelectedValue='<%# TryCast(Container,GridItem).OwnerTableView.GetColumn("Type").CurrentFilterValue %>'
                    runat="server" OnClientSelectedIndexChanged="TypeIndexChanged" DropDownWidth="350px">
                    <Items>
                        <telerik:RadComboBoxItem Text="All"/>
                    </Items>
                    <ItemTemplate>
                        <table style="width: 300px" cellspacing="0" cellpadding="0">
                            <tr>
                                <td style="width: 80px;">
                                        <%# Eval("Code")%>
                                </td>
                                <td style="width: 200px;">
                                    <%# Eval("CName")%>
                                </td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </telerik:RadComboBox>
                <telerik:RadScriptBlock ID="RadScriptBlock2" runat="server">

                    <script type="text/javascript">
                        function TypeIndexChanged(sender, args) {
                            var tableView = $find("<%# TryCast(Container,GridItem).OwnerTableView.ClientID %>");
                            tableView.filter("Type", args.get_item().get_value(), "EqualTo");
                        }
                    </script>

                </telerik:RadScriptBlock>
            </FilterTemplate>
        </telerik:GridTemplateColumn>

[Marcus]

up

[Tsvetina]

Hi Marcus,

This is so because you have an ItemTemplate which is not designed to take the values of static items. So, my suggestion is to modify your combo declaration like this:

<telerik:RadComboBox ID="RadComboBoxCode" DataSourceID="SqlDataSource2" DataTextField="Code"
    Width="100px" DataValueField="Code" Height="100px" AppendDataBoundItems="True"
    runat="server" DropDownWidth="350px">
    <Items>
        <telerik:RadComboBoxItem Text="All" />
    </Items>
    <ItemTemplate>
        <table style="width: 300px" cellspacing="0" cellpadding="0">
            <tr>
                <td style="width: 80px;">
                    <%# DataBinder.Eval(Container, "Text") %>
                </td>
                <td style="width: 200px;">
                    <%#DataBinder.Eval(Container, "Value")%>
                </td>
            </tr>
        </table>
    </ItemTemplate>
</telerik:RadComboBox>

If the item still does not show a value, find the combo on ItemDataBound event of RadGrid and explicitly bind the first item:
combo.Items[0].DataBind();

I hope this helps.

All the best,
Tsvetina
the Telerik team

[Marcus]

Thanks Tsvetina.