Grouping a check box column inside a RadGrid

[Adnan]

Hi,

 

i just need to group a Grid column which in fact is a check box column. It contains only checked/unchecked boxes, and i want to allow them to be grouped. Here is my part of the code. Btw, some time ago, i figured it out, but cant remember now :(

 

<Columns>
     <telerik:GridTemplateColumn UniqueName="cbDonorUniqueSelect" HeaderText="SelectAll" AllowFiltering="false" Groupable="True" ShowFilterIcon="false" HeaderStyle-Width="30px">
          <HeaderTemplate>
                <asp:CheckBox ID="cbCheckAllDonors" runat="server" AutoPostBack="True" OnCheckedChanged="cbCheckAllDonors_CheckedChanged" SkinID="" />
          </HeaderTemplate>
          <ItemTemplate>
                 <asp:CheckBox ID="cbSelectDonor" runat="server" OnCheckedChanged="cbSelectDonor_CheckedChange"/>
          </ItemTemplate>
</telerik:GridTemplateColumn>
</Columns>​

[Adnan]

Sorry, here is the whole part of Grid code...

<telerik:RadGrid ID="gvDonors" runat="server" AllowFilteringByColumn="True" AllowPaging="True" AllowSorting="True" CellSpacing="0" OnSortCommand="gvDonor_SortCommand" OnGroupsChanging="gvDonor_GroupsChanging"
                 OnPageIndexChanged="gvDonor_PageIndexChanged" PageSize="10" OnPreRender="gvDonor_PreRender" ShowGroupPanel="True" OnPageSizeChanged="gvDonor_PageSizeChanged" ShowFooter="True" Skin="Sunset" style="table-layout:fixed;" AutoGenerateColumns="False" GridLines="None" OnNeedDataSource="gvDonor_NeedDataSource">
    <ClientSettings AllowDragToGroup="True" AllowColumnsReorder="True" ReorderColumnsOnClient="True"></ClientSettings>
    <GroupingSettings CaseSensitive="false" />
    <GroupPanel Text="<%$Resources:localization, lblGroupingText%>"></GroupPanel>
    <MasterTableView DataKeyNames="ID" AutoGenerateColumns="False" ClientDataKeyNames="ID" Width="100%">
        <Columns>
            <telerik:GridTemplateColumn UniqueName="cbDonorUniqueSelect" HeaderText="SelectAll"  AllowFiltering="false" Groupable="True" ShowFilterIcon="false" HeaderStyle-Width="30px">
            <HeaderTemplate>
                <asp:CheckBox ID="cbCheckAllDonors" runat="server" AutoPostBack="True" OnCheckedChanged="cbCheckAllDonors_CheckedChanged" SkinID="" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:CheckBox ID="cbSelectDonor" runat="server" OnCheckedChanged="cbSelectDonor_CheckedChange"/>
            </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridBoundColumn DataField="ID" FilterControlAltText="Filter ID column" HeaderText="ID" ReadOnly="True" SortExpression="ID" UniqueName="ID" CurrentFilterFunction="EqualTo" AutoPostBackOnFilter="true" ShowFilterIcon="false" HeaderStyle-Width="30px" FilterControlWidth="30px"></telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Name" FilterControlAltText="Filter Name column" HeaderText="<%$Resources:localization, lblDonorName%>" SortExpression="Name" UniqueName="Name" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" ShowFilterIcon="false" HeaderStyle-Width="150px" FilterControlWidth="145px"></telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="ShortName" FilterControlAltText="Filter ShortName column" HeaderText="<%$Resources:localization, lblShortDonorName%>" SortExpression="ShortName" UniqueName="ShortName" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" ShowFilterIcon="false" HeaderStyle-Width="150px" FilterControlWidth="145px"></telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Country" FilterControlAltText="Filter Country column" HeaderText="<%$Resources:localization, lblDonorCountry%>" SortExpression="Country" UniqueName="Country" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" ShowFilterIcon="false"  HeaderStyle-Width="200px" FilterControlWidth="230px"></telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Status" FilterControlAltText="Filter Status column" HeaderText="<%$Resources:localization, lblStatus%>" SortExpression="Status" UniqueName="Status" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" ShowFilterIcon="false"  HeaderStyle-Width="100px" FilterControlWidth="80px"></telerik:GridBoundColumn>
        </Columns>
        <PagerStyle AlwaysVisible="True"/>
    </MasterTableView>
</telerik:RadGrid>

[Adnan]

UP

:(

[Viktor Tachev]

Hi Adnan,

In order for RadGrid to group the data it uses the values for a given field in the data source. However, the template column you are trying to group by does not seem to be bound to a data source field. It displays only CheckBoxes. In that case there are no values the grid can use to perform the grouping.

You can bind the checkbox column to a boolean field in the data source. This way the data can be grouped cased on the value for the field in the data source.

Regards,
Viktor Tachev
Telerik