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RadGrid grouping items collapsed when I return

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Alan asked on 17 Nov 2010, 05:31 PM

Hi,

I have a RadGrid (with Grouping and Filter buttons) displaying data. The grouping functionality is working and default value is set to expanded i.e. when I add a column to the group the individual groups are expanded).
The problem is though that when I navigate away and return the individual groups are collapsed. I have to open them up individually. Is there any way I can always get the items to be expanded? Would appreciate any comments/suggestions with in the code-behind file or in the front-end ASP.NET code

Thanks,
A.

*** ASP.NET Code as Follows:***

                <telerik:RadToolBar runat="server" ID="RadToolBar1" OnButtonClick="RadToolBar1_ButtonClick">
                    <Items>
                        <telerik:RadToolBarButton CommandName="ShowGrouping" CheckOnClick="true" SkinID="GroupIcon"
                            Text="Show Grouping" AllowSelfUnCheck="true" Group="1" Checked="False" />
                        <telerik:RadToolBarButton CommandName="ShowFiltering" CheckOnClick="true" SkinID="SearchIcon"
                            Text="Show Filters" AllowSelfUnCheck="true" Group="2" />
                    </Items>
                </telerik:RadToolBar>
                <telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="TelerikGridOnNeedDatasource"
                    PageSize="50" DataSourceID="dsTypeActions" AllowPaging="True" PagerStyle-AlwaysVisible="true" AutoGenerateColumns="False" AllowSorting="True">
                    <MasterTableView DataSourceID="dsTypeActions" AllowCustomSorting="True" OverrideDataSourceControlSorting="true" GroupsDefaultExpanded="True">
                        <Columns>
                            <telerik:GridBoundColumn DataField="Name" HeaderText="Name1" UniqueName="Name">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="Address" HeaderText="Address1" UniqueName="Address">
                            </telerik:GridBoundColumn>
                        </Columns>
                    </MasterTableView>
                </telerik:RadGrid>
            </asp:View>

1 Answer, 1 is accepted

answered on 23 Nov 2010, 10:32 AM

Hi Alan,

By default the groups should be expanded even after navigation. The property that explicitly sets this state is GroupsDefaultExpanded and its default value is true. You can also set explicitly this value in the Page_Load event to ensure that it is set correctly when loading the page.
The code behind for the grid is ok, I presume there should be problems in the code-behind. You can find more information on the grouping functionality in this help article and as well this live demo.
If the problem persists, please post a more complete code sample also from the code-behind so we can provide better assistance.

Regards,
Marin
the Telerik team

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